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2 years agotarget/ppc: cpu_init: Move Timebase registration into the common function
Fabiano Rosas [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: cpu_init: Move Timebase registration into the common function

Now that the 601 was removed, all of our CPUs have a timebase, so that
can be moved into the common function.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-5-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: cpu_init: Group registration of generic SPRs
Fabiano Rosas [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: cpu_init: Group registration of generic SPRs

The top level init_proc calls register_generic_sprs but also registers
some other SPRs outside of that function. Let's group everything into
a single place.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-4-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: cpu_init: Remove G2LE init code
Fabiano Rosas [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: cpu_init: Remove G2LE init code

The G2LE CPU initialization code is the same as the G2. Use the latter
for both.

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-3-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: cpu_init: Remove not implemented comments
Fabiano Rosas [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: cpu_init: Remove not implemented comments

The /* XXX : not implemented */ comments all over cpu_init are
confusing and ambiguous.

Do they mean not implemented by QEMU, not implemented in a specific
access mode? Not implemented by the CPU? Do they apply to just the
register right after or to a whole block? Do they mean we have an
action to take in the future to implement these?  Are they only
informative?

Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20220216162426.1885923-2-farosas@linux.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agospapr: implement nested-hv capability for the virtual hypervisor
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
spapr: implement nested-hv capability for the virtual hypervisor

This implements the Nested KVM HV hcall API for spapr under TCG.

The L2 is switched in when the H_ENTER_NESTED hcall is made, and the
L1 is switched back in returned from the hcall when a HV exception
is sent to the vhyp. Register state is copied in and out according to
the nested KVM HV hcall API specification.

The hdecr timer is started when the L2 is switched in, and it provides
the HDEC / 0x980 return to L1.

The MMU re-uses the bare metal radix 2-level page table walker by
using the get_pate method to point the MMU to the nested partition
table entry. MMU faults due to partition scope errors raise HV
exceptions and accordingly are routed back to the L1.

The MMU does not tag translations for the L1 (direct) vs L2 (nested)
guests, so the TLB is flushed on any L1<->L2 transition (hcall entry
and exit).

Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: checkpatch fixes ]
Message-Id: <20220216102545.1808018-10-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: Introduce a vhyp framework for nested HV support
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: Introduce a vhyp framework for nested HV support

Introduce virtual hypervisor methods that can support a "Nested KVM HV"
implementation using the bare metal 2-level radix MMU, and using HV
exceptions to return from H_ENTER_NESTED (rather than cause interrupts).

HV exceptions can now be raised in the TCG spapr machine when running a
nested KVM HV guest. The main ones are the lev==1 syscall, the hdecr,
hdsi and hisi, hv fu, and hv emu, and h_virt external interrupts.

HV exceptions are intercepted in the exception handler code and instead
of causing interrupts in the guest and switching the machine to HV mode,
they go to the vhyp where it may exit the H_ENTER_NESTED hcall with the
interrupt vector numer as return value as required by the hcall API.

Address translation is provided by the 2-level page table walker that is
implemented for the bare metal radix MMU. The partition scope page table
is pointed to the L1's partition scope by the get_pate vhc method.

Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220216102545.1808018-9-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: Add powerpc_reset_excp_state helper
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: Add powerpc_reset_excp_state helper

This moves the logic to reset the QEMU exception state into its own
function.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch fixes ]
Message-Id: <20220216102545.1808018-8-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: add helper for books vhyp hypercall handler
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: add helper for books vhyp hypercall handler

The virtual hypervisor currently always intercepts and handles
hypercalls but with a future change this will not always be the case.

Add a helper for the test so the logic is abstracted from the mechanism.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20220216102545.1808018-7-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: make vhyp get_pate method take lpid and return success
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: make vhyp get_pate method take lpid and return success

In prepartion for implementing a full partition table option for
vhyp, update the get_pate method to take an lpid and return a
success/fail indicator.

The spapr implementation currently just asserts lpid is always 0
and always return success.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch fixes ]
Message-Id: <20220216102545.1808018-6-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: add vhyp addressing mode helper for radix MMU
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: add vhyp addressing mode helper for radix MMU

The radix on vhyp MMU uses a single-level radix table walk, with the
partition scope mapping provided by the flat QEMU machine memory.

A subsequent change will use the two-level radix walk on vhyp in some
situations, so provide a helper which can abstract that logic.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20220216102545.1808018-5-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agoppc: allow the hdecr timer to be created/destroyed
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
ppc: allow the hdecr timer to be created/destroyed

Machines which don't emulate the HDEC facility are able to use the
timer for something else. Provide functions to start and stop the
hdecr timer.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch fixes ]
Message-Id: <20220216102545.1808018-4-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agospapr: prevent hdec timer being set up under virtual hypervisor
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
spapr: prevent hdec timer being set up under virtual hypervisor

The spapr virtual hypervisor does not require the hdecr timer.
Remove it.

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20220216102545.1808018-3-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agotarget/ppc: raise HV interrupts for partition table entry problems
Nicholas Piggin [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
target/ppc: raise HV interrupts for partition table entry problems

Invalid or missing partition table entry exceptions should cause HV
interrupts. HDSISR is set to bad MMU config, which is consistent with
the ISA and experimentally matches what POWER9 generates.

Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[ clg: checkpatch fixes ]
Message-Id: <20220216102545.1808018-2-npiggin@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agospapr: nvdimm: Introduce spapr-nvdimm device
Shivaprasad G Bhat [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
spapr: nvdimm: Introduce spapr-nvdimm device

If the device backend is not persistent memory for the nvdimm, there is
need for explicit IO flushes on the backend to ensure persistence.

On SPAPR, the issue is addressed by adding a new hcall to request for
an explicit flush from the guest when the backend is not pmem. So, the
approach here is to convey when the hcall flush is required in a device
tree property. The guest once it knows the device backend is not pmem,
makes the hcall whenever flush is required.

To set the device tree property, a new PAPR specific device type inheriting
the nvdimm device is implemented. When the backend doesn't have pmem=on
the device tree property "ibm,hcall-flush-required" is set, and the guest
makes hcall H_SCM_FLUSH requesting for an explicit flush. The new device
has boolean property pmem-override which when "on" advertises the device
tree property even when pmem=on for the backend. The flush function
invokes the fdatasync or pmem_persist() based on the type of backend.

The vmstate structures are made part of the spapr-nvdimm device object.
The patch attempts to keep the migration compatibility between source and
destination while rejecting the incompatibles ones with failures.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <164396256092.109112.17933240273840803354.stgit@ltczzess4.aus.stglabs.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agospapr: nvdimm: Implement H_SCM_FLUSH hcall
Shivaprasad G Bhat [Fri, 18 Feb 2022 07:34:14 +0000 (08:34 +0100)]
spapr: nvdimm: Implement H_SCM_FLUSH hcall

The patch adds support for the SCM flush hcall for the nvdimm devices.
To be available for exploitation by guest through the next patch. The
hcall is applicable only for new SPAPR specific device class which is
also introduced in this patch.

The hcall expects the semantics such that the flush to return with
H_LONG_BUSY_ORDER_10_MSEC when the operation is expected to take longer
time along with a continue_token. The hcall to be called again by providing
the continue_token to get the status. So, all fresh requests are put into
a 'pending' list and flush worker is submitted to the thread pool. The
thread pool completion callbacks move the requests to 'completed' list,
which are cleaned up after collecting the return status for the guest
in subsequent hcall from the guest.

The semantics makes it necessary to preserve the continue_tokens and
their return status across migrations. So, the completed flush states
are forwarded to the destination and the pending ones are restarted
at the destination in post_load. The necessary nvdimm flush specific
vmstate structures are also introduced in this patch which are to be
saved in the new SPAPR specific nvdimm device to be introduced in the
following patch.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <164396254862.109112.16675611182159105748.stgit@ltczzess4.aus.stglabs.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agonvdimm: Add realize, unrealize callbacks to NVDIMMDevice class
Shivaprasad G Bhat [Fri, 18 Feb 2022 07:34:13 +0000 (08:34 +0100)]
nvdimm: Add realize, unrealize callbacks to NVDIMMDevice class

A new subclass inheriting NVDIMMDevice is going to be introduced in
subsequent patches. The new subclass uses the realize and unrealize
callbacks. Add them on NVDIMMClass to appropriately call them as part
of plug-unplug.

Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Acked-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <164396253158.109112.1926755104259023743.stgit@ltczzess4.aus.stglabs.ibm.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2 years agoMerge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20220216...
Peter Maydell [Wed, 16 Feb 2022 09:57:11 +0000 (09:57 +0000)]
Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20220216' into staging

Fourth RISC-V PR for QEMU 7.0

 * Remove old Ibex PLIC header file
 * Allow writing 8 bytes with generic loader
 * Fixes for RV128
 * Refactor RISC-V CPU configs
 * Initial support for XVentanaCondOps custom extension
 * Fix for vill field in vtype
 * Fix trap cause for RV32 HS-mode CSR access from RV64 HS-mode
 * Support for svnapot, svinval and svpbmt extensions

# gpg: Signature made Wed 16 Feb 2022 06:24:52 GMT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20220216: (35 commits)
  docs/system: riscv: Update description of CPU
  target/riscv: add support for svpbmt extension
  target/riscv: add support for svinval extension
  target/riscv: add support for svnapot extension
  target/riscv: add PTE_A/PTE_D/PTE_U bits check for inner PTE
  target/riscv: Ignore reserved bits in PTE for RV64
  hw/intc: Add RISC-V AIA APLIC device emulation
  target/riscv: Allow users to force enable AIA CSRs in HART
  hw/riscv: virt: Use AIA INTC compatible string when available
  target/riscv: Implement AIA IMSIC interface CSRs
  target/riscv: Implement AIA xiselect and xireg CSRs
  target/riscv: Implement AIA mtopi, stopi, and vstopi CSRs
  target/riscv: Implement AIA interrupt filtering CSRs
  target/riscv: Implement AIA hvictl and hviprioX CSRs
  target/riscv: Implement AIA CSRs for 64 local interrupts on RV32
  target/riscv: Implement AIA local interrupt priorities
  target/riscv: Allow AIA device emulation to set ireg rmw callback
  target/riscv: Add defines for AIA CSRs
  target/riscv: Add AIA cpu feature
  target/riscv: Allow setting CPU feature from machine/device emulation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agodocs/system: riscv: Update description of CPU
Yu Li [Tue, 8 Feb 2022 13:07:23 +0000 (21:07 +0800)]
docs/system: riscv: Update description of CPU

Since the hypervisor extension been non experimental and enabled for
default CPU, the previous command is no longer available and the
option `x-h=true` or `h=true` is also no longer required.

Signed-off-by: Yu Li <liyu.yukiteru@bytedance.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <9040401e-8f87-ef4a-d840-6703f08d068c@bytedance.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: add support for svpbmt extension
Weiwei Li [Fri, 4 Feb 2022 02:26:58 +0000 (10:26 +0800)]
target/riscv: add support for svpbmt extension

- add PTE_PBMT bits: It uses two PTE bits, but otherwise has no effect on QEMU, since QEMU is sequentially consistent and doesn't model PMAs currently
- add PTE_PBMT bit check for inner PTE

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220204022658.18097-6-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: add support for svinval extension
Weiwei Li [Fri, 4 Feb 2022 02:26:57 +0000 (10:26 +0800)]
target/riscv: add support for svinval extension

- sinval.vma, hinval.vvma and hinval.gvma do the same as sfence.vma, hfence.vvma and hfence.gvma except extension check
- do nothing other than extension check for sfence.w.inval and sfence.inval.ir

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220204022658.18097-5-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: add support for svnapot extension
Weiwei Li [Fri, 4 Feb 2022 02:26:56 +0000 (10:26 +0800)]
target/riscv: add support for svnapot extension

- add PTE_N bit
- add PTE_N bit check for inner PTE
- update address translation to support 64KiB continuous region (napot_bits = 4)

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220204022658.18097-4-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: add PTE_A/PTE_D/PTE_U bits check for inner PTE
Weiwei Li [Fri, 4 Feb 2022 02:26:55 +0000 (10:26 +0800)]
target/riscv: add PTE_A/PTE_D/PTE_U bits check for inner PTE

For non-leaf PTEs, the D, A, and U bits are reserved for future standard use.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220204022658.18097-3-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Ignore reserved bits in PTE for RV64
Guo Ren [Fri, 4 Feb 2022 02:26:54 +0000 (10:26 +0800)]
target/riscv: Ignore reserved bits in PTE for RV64

Highest bits of PTE has been used for svpbmt, ref: [1], [2], so we
need to ignore them. They cannot be a part of ppn.

1: The RISC-V Instruction Set Manual, Volume II: Privileged Architecture
   4.4 Sv39: Page-Based 39-bit Virtual-Memory System
   4.5 Sv48: Page-Based 48-bit Virtual-Memory System

2: https://github.com/riscv/virtual-memory/blob/main/specs/663-Svpbmt-diff.pdf

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Liu Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220204022658.18097-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agohw/intc: Add RISC-V AIA APLIC device emulation
Anup Patel [Fri, 4 Feb 2022 17:46:54 +0000 (23:16 +0530)]
hw/intc: Add RISC-V AIA APLIC device emulation

The RISC-V AIA (Advanced Interrupt Architecture) defines a new
interrupt controller for wired interrupts called APLIC (Advanced
Platform Level Interrupt Controller). The APLIC is capabable of
forwarding wired interupts to RISC-V HARTs directly or as MSIs
(Message Signaled Interupts).

This patch adds device emulation for RISC-V AIA APLIC.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-19-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Allow users to force enable AIA CSRs in HART
Anup Patel [Fri, 4 Feb 2022 17:46:53 +0000 (23:16 +0530)]
target/riscv: Allow users to force enable AIA CSRs in HART

We add "x-aia" command-line option for RISC-V HART using which
allows users to force enable CPU AIA CSRs without changing the
interrupt controller available in RISC-V machine.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-18-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agohw/riscv: virt: Use AIA INTC compatible string when available
Anup Patel [Fri, 4 Feb 2022 17:46:52 +0000 (23:16 +0530)]
hw/riscv: virt: Use AIA INTC compatible string when available

We should use the AIA INTC compatible string in the CPU INTC
DT nodes when the CPUs support AIA feature. This will allow
Linux INTC driver to use AIA local interrupt CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-17-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA IMSIC interface CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:51 +0000 (23:16 +0530)]
target/riscv: Implement AIA IMSIC interface CSRs

The AIA specification defines IMSIC interface CSRs for easy access
to the per-HART IMSIC registers without using indirect xiselect and
xireg CSRs. This patch implements the AIA IMSIC interface CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-16-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA xiselect and xireg CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:50 +0000 (23:16 +0530)]
target/riscv: Implement AIA xiselect and xireg CSRs

The AIA specification defines [m|s|vs]iselect and [m|s|vs]ireg CSRs
which allow indirect access to interrupt priority arrays and per-HART
IMSIC registers. This patch implements AIA xiselect and xireg CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-15-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA mtopi, stopi, and vstopi CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:49 +0000 (23:16 +0530)]
target/riscv: Implement AIA mtopi, stopi, and vstopi CSRs

The AIA specification introduces new [m|s|vs]topi CSRs for
reporting pending local IRQ number and associated IRQ priority.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-14-anup@brainfault.org
[ Changed by AF:
 - Fixup indentation
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA interrupt filtering CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:48 +0000 (23:16 +0530)]
target/riscv: Implement AIA interrupt filtering CSRs

The AIA specificaiton adds interrupt filtering support for M-mode
and HS-mode. Using AIA interrupt filtering M-mode and H-mode can
take local interrupt 13 or above and selectively inject same local
interrupt to lower privilege modes.

At the moment, we don't have any local interrupts above 12 so we
add dummy implementation (i.e. read zero and ignore write) of AIA
interrupt filtering CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-13-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA hvictl and hviprioX CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:47 +0000 (23:16 +0530)]
target/riscv: Implement AIA hvictl and hviprioX CSRs

The AIA hvictl and hviprioX CSRs allow hypervisor to control
interrupts visible at VS-level. This patch implements AIA hvictl
and hviprioX CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-12-anup@brainfault.org
[ Changes by AF:
 - Fix possible unintilised variable error in rmw_sie()
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA CSRs for 64 local interrupts on RV32
Anup Patel [Fri, 4 Feb 2022 17:46:46 +0000 (23:16 +0530)]
target/riscv: Implement AIA CSRs for 64 local interrupts on RV32

The AIA specification adds new CSRs for RV32 so that RISC-V hart can
support 64 local interrupts on both RV32 and RV64.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-11-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement AIA local interrupt priorities
Anup Patel [Fri, 4 Feb 2022 17:46:45 +0000 (23:16 +0530)]
target/riscv: Implement AIA local interrupt priorities

The AIA spec defines programmable 8-bit priority for each local interrupt
at M-level, S-level and VS-level so we extend local interrupt processing
to consider AIA interrupt priorities. The AIA CSRs which help software
configure local interrupt priorities will be added by subsequent patches.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220204174700.534953-10-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Allow AIA device emulation to set ireg rmw callback
Anup Patel [Fri, 4 Feb 2022 17:46:44 +0000 (23:16 +0530)]
target/riscv: Allow AIA device emulation to set ireg rmw callback

The AIA device emulation (such as AIA IMSIC) should be able to set
(or provide) AIA ireg read-modify-write callback for each privilege
level of a RISC-V HART.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-9-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Add defines for AIA CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:43 +0000 (23:16 +0530)]
target/riscv: Add defines for AIA CSRs

The RISC-V AIA specification extends RISC-V local interrupts and
introduces new CSRs. This patch adds defines for the new AIA CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-8-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Add AIA cpu feature
Anup Patel [Fri, 4 Feb 2022 17:46:42 +0000 (23:16 +0530)]
target/riscv: Add AIA cpu feature

We define a CPU feature for AIA CSR support in RISC-V CPUs which
can be set by machine/device emulation. The RISC-V CSR emulation
will also check this feature for emulating AIA CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-7-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Allow setting CPU feature from machine/device emulation
Anup Patel [Fri, 4 Feb 2022 17:46:41 +0000 (23:16 +0530)]
target/riscv: Allow setting CPU feature from machine/device emulation

The machine or device emulation should be able to force set certain
CPU features because:
1) We can have certain CPU features which are in-general optional
   but implemented by RISC-V CPUs on the machine.
2) We can have devices which require a certain CPU feature. For example,
   AIA IMSIC devices expect AIA CSRs implemented by RISC-V CPUs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-6-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Improve delivery of guest external interrupts
Anup Patel [Fri, 4 Feb 2022 17:46:40 +0000 (23:16 +0530)]
target/riscv: Improve delivery of guest external interrupts

The guest external interrupts from an interrupt controller are
delivered only when the Guest/VM is running (i.e. V=1). This means
any guest external interrupt which is triggered while the Guest/VM
is not running (i.e. V=0) will be missed on QEMU resulting in Guest
with sluggish response to serial console input and other I/O events.

To solve this, we check and inject interrupt after setting V=1.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-5-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement hgeie and hgeip CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:39 +0000 (23:16 +0530)]
target/riscv: Implement hgeie and hgeip CSRs

The hgeie and hgeip CSRs are required for emulating an external
interrupt controller capable of injecting virtual external interrupt
to Guest/VM running at VS-level.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-4-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Implement SGEIP bit in hip and hie CSRs
Anup Patel [Fri, 4 Feb 2022 17:46:38 +0000 (23:16 +0530)]
target/riscv: Implement SGEIP bit in hip and hie CSRs

A hypervisor can optionally take guest external interrupts using
SGEIP bit of hip and hie CSRs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-3-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Fix trap cause for RV32 HS-mode CSR access from RV64 HS-mode
Anup Patel [Fri, 4 Feb 2022 17:46:37 +0000 (23:16 +0530)]
target/riscv: Fix trap cause for RV32 HS-mode CSR access from RV64 HS-mode

We should be returning illegal instruction trap when RV64 HS-mode tries
to access RV32 HS-mode CSR.

Fixes: d6f20dacea51 ("target/riscv: Fix 32-bit HS mode access permissions")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-2-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Fix vill field write in vtype
LIU Zhiwei [Tue, 1 Feb 2022 06:46:01 +0000 (14:46 +0800)]
target/riscv: Fix vill field write in vtype

The guest should be able to set the vill bit as part of vsetvl.

Currently we may set env->vill to 1 in the vsetvl helper, but there
is nowhere that we set it to 0, so once it transitions to 1 it's stuck
there until the system is reset.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220201064601.41143-1-zhiwei_liu@c-sky.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: add a MAINTAINERS entry for XVentanaCondOps
Philipp Tomsich [Wed, 2 Feb 2022 00:52:49 +0000 (01:52 +0100)]
target/riscv: add a MAINTAINERS entry for XVentanaCondOps

The XVentanaCondOps extension is supported by VRULL on behalf of the
Ventana Micro.  Add myself as a point-of-contact.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220202005249.3566542-8-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: Add XVentanaCondOps custom extension
Philipp Tomsich [Wed, 2 Feb 2022 00:52:48 +0000 (01:52 +0100)]
target/riscv: Add XVentanaCondOps custom extension

This adds the decoder and translation for the XVentanaCondOps custom
extension (vendor-defined by Ventana Micro Systems), which is
documented at https://github.com/ventanamicro/ventana-custom-extensions/releases/download/v1.0.0/ventana-custom-extensions-v1.0.0.pdf

This commit then also adds a guard-function (has_XVentanaCondOps_p)
and the decoder function to the table of decoders, enabling the
support for the XVentanaCondOps extension.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220202005249.3566542-7-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: iterate over a table of decoders
Philipp Tomsich [Wed, 2 Feb 2022 00:52:47 +0000 (01:52 +0100)]
target/riscv: iterate over a table of decoders

To split up the decoder into multiple functions (both to support
vendor-specific opcodes in separate files and to simplify maintenance
of orthogonal extensions), this changes decode_op to iterate over a
table of decoders predicated on guard functions.

This commit only adds the new structure and the table, allowing for
the easy addition of additional decoders in the future.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220202005249.3566542-6-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: access cfg structure through DisasContext
Philipp Tomsich [Wed, 2 Feb 2022 00:52:46 +0000 (01:52 +0100)]
target/riscv: access cfg structure through DisasContext

The Zb[abcs] support code still uses the RISCV_CPU macros to access
the configuration information (i.e., check whether an extension is
available/enabled).  Now that we provide this information directly
from DisasContext, we can access this directly via the cfg_ptr field.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220202005249.3566542-5-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: access configuration through cfg_ptr in DisasContext
Philipp Tomsich [Wed, 2 Feb 2022 00:52:45 +0000 (01:52 +0100)]
target/riscv: access configuration through cfg_ptr in DisasContext

The implementation in trans_{rvi,rvv,rvzfh}.c.inc accesses the shallow
copies (in DisasContext) of some of the elements available in the
RISCVCPUConfig structure.  This commit redirects accesses to use the
cfg_ptr copied into DisasContext and removes the shallow copies.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220202005249.3566542-4-philipp.tomsich@vrull.eu>
[ Changes by AF:
 - Fixup checkpatch failures
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: riscv_tr_init_disas_context: copy pointer-to-cfg into cfg_ptr
Philipp Tomsich [Wed, 2 Feb 2022 00:52:44 +0000 (01:52 +0100)]
target/riscv: riscv_tr_init_disas_context: copy pointer-to-cfg into cfg_ptr

As the number of extensions is growing, copying them individiually
into the DisasContext will scale less and less... instead we populate
a pointer to the RISCVCPUConfig structure in the DisasContext.

This adds an extra indirection when checking for the availability of
an extension (compared to copying the fields into DisasContext).
While not a performance problem today, we can always (shallow) copy
the entire structure into the DisasContext (instead of putting a
pointer to it) if this is ever deemed necessary.

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220202005249.3566542-3-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: refactor (anonymous struct) RISCVCPU.cfg into 'struct RISCVCPUConfig'
Philipp Tomsich [Wed, 2 Feb 2022 00:52:43 +0000 (01:52 +0100)]
target/riscv: refactor (anonymous struct) RISCVCPU.cfg into 'struct RISCVCPUConfig'

Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220202005249.3566542-2-philipp.tomsich@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agotarget/riscv: correct "code should not be reached" for x-rv128
Frédéric Pétrot [Mon, 24 Jan 2022 20:24:56 +0000 (21:24 +0100)]
target/riscv: correct "code should not be reached" for x-rv128

The addition of uxl support in gdbstub adds a few checks on the maximum
register length, but omitted MXL_RV128, an experimental feature.
This patch makes rv128 react as rv64, as previously.

Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220124202456.420258-1-frederic.petrot@univ-grenoble-alpes.fr
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agoAllow setting up to 8 bytes with the generic loader
Petr Tesarik [Thu, 20 Jan 2022 09:27:15 +0000 (10:27 +0100)]
Allow setting up to 8 bytes with the generic loader

The documentation for the generic loader says that "the maximum size of
the data is 8 bytes". However, attempts to set data-len=8 trigger the
following assertion failure:

../hw/core/generic-loader.c:59: generic_loader_reset: Assertion `s->data_len < sizeof(s->data)' failed.

The type of s->data is uint64_t (i.e. 8 bytes long), so I believe this
assert should use <= instead of <.

Fixes: e481a1f63c93 ("generic-loader: Add a generic loader")
Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220120092715.7805-1-ptesarik@suse.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agoinclude: hw: remove ibex_plic.h
Wilfred Mallawa [Fri, 21 Jan 2022 05:50:05 +0000 (15:50 +1000)]
include: hw: remove ibex_plic.h

This patch removes the left-over/unused `ibex_plic.h` file. Previously
used by opentitan, which now follows the RISC-V standard and uses the
SiFivePlicState.

Fixes: 434e7e021 ("hw/intc: Remove the Ibex PLIC")
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220121055005.3159846-1-alistair.francis@opensource.wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2 years agoMerge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into...
Peter Maydell [Tue, 15 Feb 2022 19:30:33 +0000 (19:30 +0000)]
Merge remote-tracking branch 'remotes/stefanha-gitlab/tags/block-pull-request' into staging

Pull request

This contains coroutine poll size scaling, virtiofsd rseq seccomp for new glibc
versions, and the QEMU C virtiofsd deprecation notice.

# gpg: Signature made Mon 14 Feb 2022 17:14:21 GMT
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha-gitlab/tags/block-pull-request:
  util: adjust coroutine pool size to virtio block queue
  Deprecate C virtiofsd
  tools/virtiofsd: Add rseq syscall to the seccomp allowlist

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging
Peter Maydell [Tue, 15 Feb 2022 13:51:35 +0000 (13:51 +0000)]
Merge remote-tracking branch 'remotes/nvme/tags/nvme-next-pull-request' into staging

hw/nvme updates

  - fix CVE-2021-3929
  - add zone random write area support
  - misc cleanups from Philippe

# gpg: Signature made Mon 14 Feb 2022 08:01:34 GMT
# gpg:                using RSA key 522833AA75E2DCE6A24766C04DE1AF316D4F0DE9
# gpg: Good signature from "Klaus Jensen <its@irrelevant.dk>" [unknown]
# gpg:                 aka "Klaus Jensen <k.jensen@samsung.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: DDCA 4D9C 9EF9 31CC 3468  4272 63D5 6FC5 E55D A838
#      Subkey fingerprint: 5228 33AA 75E2 DCE6 A247  66C0 4DE1 AF31 6D4F 0DE9

* remotes/nvme/tags/nvme-next-pull-request:
  hw/nvme: add support for zoned random write area
  hw/nvme: add ozcs enum
  hw/nvme: add struct for zone management send
  hw/nvme/ctrl: Pass buffers as 'void *' types
  hw/nvme/ctrl: Have nvme_addr_write() take const buffer
  hw/nvme: fix CVE-2021-3929

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
Peter Maydell [Tue, 15 Feb 2022 11:39:54 +0000 (11:39 +0000)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 14 Feb 2022 03:51:14 GMT
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
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# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  net/eth: Don't consider ESP to be an IPv6 option header
  hw/net: e1000e: Clear ICR on read when using non MSI-X interrupts
  net/filter: Optimize filter_send to coroutine
  net/colo-compare.c: Update the default value comments
  net/colo-compare.c: Optimize compare order for performance
  net: Fix uninitialized data usage
  net/tap: Set return code on failure
  hw/net/vmxnet3: Log guest-triggerable errors using LOG_GUEST_ERROR

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/kwolf-gitlab/tags/for-upstream' into staging
Peter Maydell [Mon, 14 Feb 2022 19:54:00 +0000 (19:54 +0000)]
Merge remote-tracking branch 'remotes/kwolf-gitlab/tags/for-upstream' into staging

Block layer patches

- Fix crash in blockdev-reopen with iothreads
- fdc-isa: Respect QOM properties when building AML

# gpg: Signature made Fri 11 Feb 2022 17:44:52 GMT
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kwolf-gitlab/tags/for-upstream:
  hw/block/fdc-isa: Respect QOM properties when building AML
  iotests: Test blockdev-reopen with iothreads and throttling
  block: Lock AioContext for drain_end in blockdev-reopen

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoutil: adjust coroutine pool size to virtio block queue
Hiroki Narukawa [Mon, 14 Feb 2022 11:53:02 +0000 (20:53 +0900)]
util: adjust coroutine pool size to virtio block queue

Coroutine pool size was 64 from long ago, and the basis was organized in the commit message in 4d68e86b.

At that time, virtio-blk queue-size and num-queue were not configuable, and equivalent values were 128 and 1.

Coroutine pool size 64 was fine then.

Later queue-size and num-queue got configuable, and default values were increased.

Coroutine pool with size 64 exhausts frequently with random disk IO in new size, and slows down.

This commit adjusts coroutine pool size adaptively with new values.

This commit adds 64 by default, but now coroutine is not only for block devices,

and is not too much burdon comparing with new default.

pool size of 128 * vCPUs.

Signed-off-by: Hiroki Narukawa <hnarukaw@yahoo-corp.jp>
Message-id: 20220214115302.13294-2-hnarukaw@yahoo-corp.jp
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoDeprecate C virtiofsd
Dr. David Alan Gilbert [Thu, 10 Feb 2022 17:47:14 +0000 (17:47 +0000)]
Deprecate C virtiofsd

There's a nice new Rust implementation out there; recommend people
do new work on that.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20220210174714.19843-1-dgilbert@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agotools/virtiofsd: Add rseq syscall to the seccomp allowlist
Christian Ehrhardt [Wed, 9 Feb 2022 11:14:56 +0000 (12:14 +0100)]
tools/virtiofsd: Add rseq syscall to the seccomp allowlist

The virtiofsd currently crashes when used with glibc 2.35.
That is due to the rseq system call being added to every thread
creation [1][2].

[1]: https://www.efficios.com/blog/2019/02/08/linux-restartable-sequences/
[2]: https://sourceware.org/pipermail/libc-alpha/2022-February/136040.html

This happens not at daemon start, but when a guest connects

    /usr/lib/qemu/virtiofsd -f --socket-path=/tmp/testvfsd -o sandbox=chroot \
        -o source=/var/guests/j-virtiofs --socket-group=kvm
    virtio_session_mount: Waiting for vhost-user socket connection...
    # start ok, now guest will connect
    virtio_session_mount: Received vhost-user socket connection
    virtio_loop: Entry
    fv_queue_set_started: qidx=0 started=1
    fv_queue_set_started: qidx=1 started=1
    Bad system call (core dumped)

We have to put rseq on the seccomp allowlist to avoid that the daemon
is crashing in this case.

Reported-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 20220209111456.3328420-1-christian.ehrhardt@canonical.com

[Moved rseq to its alphabetically ordered position in the seccomp
allowlist.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20220211' into staging
Peter Maydell [Mon, 14 Feb 2022 15:24:26 +0000 (15:24 +0000)]
Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20220211' into staging

Fix safe_syscall_base for sparc64.
Fix host signal handling for sparc64-linux.
Speedups for jump cache and work list probing.
Fix for exception replays.
Raise guest SIGBUS for user-only misaligned accesses.

# gpg: Signature made Fri 11 Feb 2022 01:27:16 GMT
# gpg:                using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg:                issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth-gitlab/tags/pull-tcg-20220211: (34 commits)
  tests/tcg/multiarch: Add sigbus.c
  tcg/sparc: Support unaligned access for user-only
  tcg/sparc: Add tcg_out_jmpl_const for better tail calls
  tcg/sparc: Use the constant pool for 64-bit constants
  tcg/sparc: Convert patch_reloc to return bool
  tcg/sparc: Improve code gen for shifted 32-bit constants
  tcg/sparc: Add scratch argument to tcg_out_movi_int
  tcg/sparc: Split out tcg_out_movi_imm32
  tcg/sparc: Use tcg_out_movi_imm13 in tcg_out_addsub2_i64
  tcg/mips: Support unaligned access for softmmu
  tcg/mips: Support unaligned access for user-only
  tcg/arm: Support raising sigbus for user-only
  tcg/arm: Reserve a register for guest_base
  tcg/arm: Support unaligned access for softmmu
  tcg/arm: Check alignment for ldrd and strd
  tcg/arm: Remove use_armv6_instructions
  tcg/arm: Remove use_armv5t_instructions
  tcg/arm: Drop support for armv4 and armv5 hosts
  tcg/loongarch64: Support raising sigbus for user-only
  tcg/tci: Support raising sigbus for user-only
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/nvme: add support for zoned random write area
Klaus Jensen [Thu, 4 Mar 2021 07:40:11 +0000 (08:40 +0100)]
hw/nvme: add support for zoned random write area

Add support for TP 4076 ("Zoned Random Write Area"), v2021.08.23
("Ratified").

This adds three new namespace parameters: "zoned.numzrwa" (number of
zrwa resources, i.e. number of zones that can have a zrwa),
"zoned.zrwas" (zrwa size in LBAs), "zoned.zrwafg" (granularity in LBAs
for flushes).

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: add ozcs enum
Klaus Jensen [Mon, 22 Nov 2021 22:38:31 +0000 (23:38 +0100)]
hw/nvme: add ozcs enum

Add enumeration for OZCS values.

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: add struct for zone management send
Klaus Jensen [Mon, 22 Nov 2021 22:22:27 +0000 (23:22 +0100)]
hw/nvme: add struct for zone management send

Add struct for Zone Management Send in preparation for more zone send
flags.

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme/ctrl: Pass buffers as 'void *' types
Philippe Mathieu-Daudé [Thu, 11 Nov 2021 15:45:52 +0000 (16:45 +0100)]
hw/nvme/ctrl: Pass buffers as 'void *' types

These buffers can be anything, not an array of chars,
so use the 'void *' type for them.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme/ctrl: Have nvme_addr_write() take const buffer
Philippe Mathieu-Daudé [Thu, 11 Nov 2021 15:45:51 +0000 (16:45 +0100)]
hw/nvme/ctrl: Have nvme_addr_write() take const buffer

The 'buf' argument is not modified, so better pass it as const type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agohw/nvme: fix CVE-2021-3929
Klaus Jensen [Fri, 17 Dec 2021 09:44:01 +0000 (10:44 +0100)]
hw/nvme: fix CVE-2021-3929

This fixes CVE-2021-3929 "locally" by denying DMA to the iomem of the
device itself. This still allows DMA to MMIO regions of other devices
(e.g. doing P2P DMA to the controller memory buffer of another NVMe
device).

Fixes: CVE-2021-3929
Reported-by: Qiuhao Li <Qiuhao.Li@outlook.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
2 years agonet/eth: Don't consider ESP to be an IPv6 option header
Thomas Jansen [Sat, 12 Feb 2022 18:56:41 +0000 (19:56 +0100)]
net/eth: Don't consider ESP to be an IPv6 option header

The IPv6 option headers all have in common that they start with some
common fields, in particular the type of the next header followed by the
extention header length. This is used to traverse the list of the
options. The ESP header does not follow that format, which can break the
IPv6 option header traversal code in eth_parse_ipv6_hdr().

The effect of that is that network interfaces such as vmxnet3 that use
the following call chain
  eth_is_ip6_extension_header_type
  eth_parse_ipv6_hdr
  net_tx_pkt_parse_headers
  net_tx_pkt_parse
  vmxnet3_process_tx_queue
to send packets from the VM out to the host will drop packets of the
following structure:
  Ethernet-Header(IPv6-Header(ESP(encrypted data)))

Note that not all types of network interfaces use the net_tx_pkt_parse
function though, leading to inconsistent behavior regarding sending
those packets. The e1000 network interface for example does not suffer
from this limitation.

By not considering ESP to be an IPv6 header we can allow sending those
packets out to the host on all types of network interfaces.

Fixes: 75020a702151 ("Common definitions for VMWARE devices")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/149
Buglink: https://bugs.launchpad.net/qemu/+bug/1758091
Signed-off-by: Thomas Jansen <mithi@mithi.net>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agohw/net: e1000e: Clear ICR on read when using non MSI-X interrupts
Nick Hudson [Sat, 12 Feb 2022 09:44:17 +0000 (09:44 +0000)]
hw/net: e1000e: Clear ICR on read when using non MSI-X interrupts

In section 7.4.3 of the 82574 datasheet it states that

    "In systems that do not support MSI-X, reading the ICR
     register clears it's bits..."

Some OSes rely on this.

Signed-off-by: Nick Hudson <skrll@netbsd.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agonet/filter: Optimize filter_send to coroutine
Rao Lei [Fri, 14 Jan 2022 05:09:02 +0000 (13:09 +0800)]
net/filter: Optimize filter_send to coroutine

This patch is to improve the logic of QEMU main thread sleep code in
qemu_chr_write_buffer() where it can be blocked and can't run other
coroutines during COLO IO stress test.

Our approach is to put filter_send() in a coroutine. In this way,
filter_send() will call qemu_coroutine_yield() in qemu_co_sleep_ns(),
so that it can be scheduled out and QEMU main thread has opportunity to
run other tasks.

Signed-off-by: Lei Rao <lei.rao@intel.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agonet/colo-compare.c: Update the default value comments
Zhang Chen [Fri, 14 Jan 2022 05:09:01 +0000 (13:09 +0800)]
net/colo-compare.c: Update the default value comments

Make the comments consistent with the REGULAR_PACKET_CHECK_MS.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agonet/colo-compare.c: Optimize compare order for performance
Zhang Chen [Fri, 14 Jan 2022 05:09:00 +0000 (13:09 +0800)]
net/colo-compare.c: Optimize compare order for performance

COLO-compare use the glib function g_queue_find_custom to dump
another VM's networking packet to compare. But this function always
start find from the queue->head(here is the newest packet), It will
reduce the success rate of comparison. So this patch reversed
the order of the queues for performance.

Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reported-by: leirao <lei.rao@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agonet: Fix uninitialized data usage
Peter Foley [Fri, 14 Jan 2022 05:08:59 +0000 (13:08 +0800)]
net: Fix uninitialized data usage

e.g.
1109 15:16:20.151506 Uninitialized bytes in ioctl_common_pre at offset 0 inside [0x7ffc516af9b8, 4)
 1109 15:16:20.151659 ==588974==WARNING: MemorySanitizer: use-of-uninitialized-value
 1109 15:16:20.312923     #0 0x5639b88acb21 in tap_probe_vnet_hdr_len third_party/qemu/net/tap-linux.c:183:9
 1109 15:16:20.312952     #1 0x5639b88afd66 in net_tap_fd_init third_party/qemu/net/tap.c:409:9
 1109 15:16:20.312954     #2 0x5639b88b2d1b in net_init_tap_one third_party/qemu/net/tap.c:681:19
 1109 15:16:20.312956     #3 0x5639b88b16a8 in net_init_tap third_party/qemu/net/tap.c:912:13
 1109 15:16:20.312957     #4 0x5639b8890175 in net_client_init1 third_party/qemu/net/net.c:1110:9
 1109 15:16:20.312958     #5 0x5639b888f912 in net_client_init third_party/qemu/net/net.c:1208:15
 1109 15:16:20.312960     #6 0x5639b8894aa5 in net_param_nic third_party/qemu/net/net.c:1588:11
 1109 15:16:20.312961     #7 0x5639b900cd18 in qemu_opts_foreach third_party/qemu/util/qemu-option.c:1135:14
 1109 15:16:20.312962     #8 0x5639b889393c in net_init_clients third_party/qemu/net/net.c:1612:9
 1109 15:16:20.312964     #9 0x5639b717aaf3 in qemu_create_late_backends third_party/qemu/softmmu/vl.c:1962:5
 1109 15:16:20.312965     #10 0x5639b717aaf3 in qemu_init third_party/qemu/softmmu/vl.c:3694:5
 1109 15:16:20.312967     #11 0x5639b71083b8 in main third_party/qemu/softmmu/main.c:49:5
 1109 15:16:20.312968     #12 0x7f464de1d8d2 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x628d2)
 1109 15:16:20.312969     #13 0x5639b6bbd389 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120
 1109 15:16:20.312970
 1109 15:16:20.312975   Uninitialized value was stored to memory at
 1109 15:16:20.313393     #0 0x5639b88acbee in tap_probe_vnet_hdr_len third_party/qemu/net/tap-linux.c
 1109 15:16:20.313396     #1 0x5639b88afd66 in net_tap_fd_init third_party/qemu/net/tap.c:409:9
 1109 15:16:20.313398     #2 0x5639b88b2d1b in net_init_tap_one third_party/qemu/net/tap.c:681:19
 1109 15:16:20.313399     #3 0x5639b88b16a8 in net_init_tap third_party/qemu/net/tap.c:912:13
 1109 15:16:20.313400     #4 0x5639b8890175 in net_client_init1 third_party/qemu/net/net.c:1110:9
 1109 15:16:20.313401     #5 0x5639b888f912 in net_client_init third_party/qemu/net/net.c:1208:15
 1109 15:16:20.313403     #6 0x5639b8894aa5 in net_param_nic third_party/qemu/net/net.c:1588:11
 1109 15:16:20.313404     #7 0x5639b900cd18 in qemu_opts_foreach third_party/qemu/util/qemu-option.c:1135:14
 1109 15:16:20.313405     #8 0x5639b889393c in net_init_clients third_party/qemu/net/net.c:1612:9
 1109 15:16:20.313407     #9 0x5639b717aaf3 in qemu_create_late_backends third_party/qemu/softmmu/vl.c:1962:5
 1109 15:16:20.313408     #10 0x5639b717aaf3 in qemu_init third_party/qemu/softmmu/vl.c:3694:5
 1109 15:16:20.313409     #11 0x5639b71083b8 in main third_party/qemu/softmmu/main.c:49:5
 1109 15:16:20.313410     #12 0x7f464de1d8d2 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x628d2)
 1109 15:16:20.313412     #13 0x5639b6bbd389 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120
 1109 15:16:20.313413
 1109 15:16:20.313417   Uninitialized value was stored to memory at
 1109 15:16:20.313791     #0 0x5639b88affbd in net_tap_fd_init third_party/qemu/net/tap.c:400:26
 1109 15:16:20.313826     #1 0x5639b88b2d1b in net_init_tap_one third_party/qemu/net/tap.c:681:19
 1109 15:16:20.313829     #2 0x5639b88b16a8 in net_init_tap third_party/qemu/net/tap.c:912:13
 1109 15:16:20.313831     #3 0x5639b8890175 in net_client_init1 third_party/qemu/net/net.c:1110:9
 1109 15:16:20.313836     #4 0x5639b888f912 in net_client_init third_party/qemu/net/net.c:1208:15
 1109 15:16:20.313838     #5 0x5639b8894aa5 in net_param_nic third_party/qemu/net/net.c:1588:11
 1109 15:16:20.313839     #6 0x5639b900cd18 in qemu_opts_foreach third_party/qemu/util/qemu-option.c:1135:14
 1109 15:16:20.313841     #7 0x5639b889393c in net_init_clients third_party/qemu/net/net.c:1612:9
 1109 15:16:20.313843     #8 0x5639b717aaf3 in qemu_create_late_backends third_party/qemu/softmmu/vl.c:1962:5
 1109 15:16:20.313844     #9 0x5639b717aaf3 in qemu_init third_party/qemu/softmmu/vl.c:3694:5
 1109 15:16:20.313845     #10 0x5639b71083b8 in main third_party/qemu/softmmu/main.c:49:5
 1109 15:16:20.313846     #11 0x7f464de1d8d2 in __libc_start_main (/usr/grte/v5/lib64/libc.so.6+0x628d2)
 1109 15:16:20.313847     #12 0x5639b6bbd389 in _start /usr/grte/v5/debug-src/src/csu/../sysdeps/x86_64/start.S:120
 1109 15:16:20.313849
 1109 15:16:20.313851   Uninitialized value was created by an allocation of 'ifr' in the stack frame of function 'tap_probe_vnet_hdr'
 1109 15:16:20.313855     #0 0x5639b88ac680 in tap_probe_vnet_hdr third_party/qemu/net/tap-linux.c:151
 1109 15:16:20.313856
 1109 15:16:20.313878 SUMMARY: MemorySanitizer: use-of-uninitialized-value third_party/qemu/net/tap-linux.c:183:9 in tap_probe_vnet_hdr_len

Fixes: dc69004c7d8 ("net: move tap_probe_vnet_hdr() to tap-linux.c")
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Patrick Venture <venture@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Foley <pefoley@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agonet/tap: Set return code on failure
Peter Foley [Fri, 14 Jan 2022 05:08:58 +0000 (13:08 +0800)]
net/tap: Set return code on failure

Match the other error handling in this function.

Fixes: e7b347d0bf6 ("net: detect errors from probing vnet hdr flag for TAP devices")

Reviewed-by: Patrick Venture <venture@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Foley <pefoley@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agohw/net/vmxnet3: Log guest-triggerable errors using LOG_GUEST_ERROR
Philippe Mathieu-Daudé [Fri, 14 Jan 2022 05:08:57 +0000 (13:08 +0800)]
hw/net/vmxnet3: Log guest-triggerable errors using LOG_GUEST_ERROR

The "Interrupt Cause" register (VMXNET3_REG_ICR) is read-only.
Write accesses are ignored. Log them with as LOG_GUEST_ERROR
instead of aborting:

  [R +0.239743] writeq 0xe0002031 0x46291a5a55460800
  ERROR:hw/net/vmxnet3.c:1819:vmxnet3_io_bar1_write: code should not be reached
  Thread 1 "qemu-system-i38" received signal SIGABRT, Aborted.
  (gdb) bt
  #3  0x74c397d3 in __GI_abort () at abort.c:79
  #4  0x76d3cd4c in g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=<optimized out>, message=<optimized out>) at ../glib/gtestutils.c:3223
  #5  0x76d9d45f in g_assertion_message_expr
      (domain=0x0, file=0x59fc2e53 "hw/net/vmxnet3.c", line=1819, func=0x59fc11e0 <__func__.vmxnet3_io_bar1_write> "vmxnet3_io_bar1_write", expr=<optimized out>)
      at ../glib/gtestutils.c:3249
  #6  0x57e80a3a in vmxnet3_io_bar1_write (opaque=0x62814100, addr=56, val=70, size=4) at hw/net/vmxnet3.c:1819
  #7  0x58c2d894 in memory_region_write_accessor (mr=0x62816b90, addr=56, value=0x7fff9450, size=4, shift=0, mask=4294967295, attrs=...) at softmmu/memory.c:492
  #8  0x58c2d1d2 in access_with_adjusted_size (addr=56, value=0x7fff9450, size=1, access_size_min=4, access_size_max=4, access_fn=
      0x58c2d290 <memory_region_write_accessor>, mr=0x62816b90, attrs=...) at softmmu/memory.c:554
  #9  0x58c2bae7 in memory_region_dispatch_write (mr=0x62816b90, addr=56, data=70, op=MO_8, attrs=...) at softmmu/memory.c:1504
  #10 0x58bfd034 in flatview_write_continue (fv=0x606000181700, addr=0xe0002038, attrs=..., ptr=0x7fffb9e0, len=1, addr1=56, l=1, mr=0x62816b90)
      at softmmu/physmem.c:2782
  #11 0x58beba00 in flatview_write (fv=0x606000181700, addr=0xe0002031, attrs=..., buf=0x7fffb9e0, len=8) at softmmu/physmem.c:2822
  #12 0x58beb589 in address_space_write (as=0x608000015f20, addr=0xe0002031, attrs=..., buf=0x7fffb9e0, len=8) at softmmu/physmem.c:2914

Reported-by: Dike <dike199774@qq.com>
Reported-by: Duhao <504224090@qq.com>
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2032932
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/legoater/tags/pull-ppc-20220210' into staging
Peter Maydell [Sun, 13 Feb 2022 20:33:28 +0000 (20:33 +0000)]
Merge remote-tracking branch 'remotes/legoater/tags/pull-ppc-20220210' into staging

ppc-7.0 queue

* Exception model rework (Fabiano)
* Unused CPU models removal (Fabiano and Cédric)
* Fix for VOF installation (Alexey)
* Misc fixes

# gpg: Signature made Thu 10 Feb 2022 12:59:07 GMT
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# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
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* remotes/legoater/tags/pull-ppc-20220210: (42 commits)
  spapr/vof: Install rom and nvram binaries
  docs: rstfy confidential guest documentation
  target/ppc: Change VSX instructions behavior to fill with zeros
  target/ppc: books: Remove excp_model argument from ppc_excp_apply_ail
  target/ppc: Assert if MSR bits differ from msr_mask during exceptions
  target/ppc: powerpc_excp: Move common code to the caller function
  target/ppc: Remove powerpc_excp_legacy
  target/ppc: 7xx: Set SRRs directly in exception code
  target/ppc: 7xx: Software TLB cleanup
  target/ppc: 7xx: System Reset cleanup
  target/ppc: 7xx: System Call exception cleanup
  target/ppc: 7xx: Program exception cleanup
  target/ppc: 7xx: External interrupt cleanup
  target/ppc: 7xx: Machine Check exception cleanup
  target/ppc: Simplify powerpc_excp_7xx
  target/ppc: Introduce powerpc_excp_7xx
  target/ppc: Merge 7x5 and 7x0 exception model IDs
  target/ppc: 6xx: Set SRRs directly in exception code
  target/ppc: 6xx: Software TLB exceptions cleanup
  target/ppc: 6xx: System Reset interrupt cleanup
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoMerge remote-tracking branch 'remotes/vsementsov/tags/pull-nbd-2022-02-09-v2' into...
Peter Maydell [Sat, 12 Feb 2022 22:04:07 +0000 (22:04 +0000)]
Merge remote-tracking branch 'remotes/vsementsov/tags/pull-nbd-2022-02-09-v2' into staging

nbd: handle AioContext change correctly

v2: add my s-o-b marks to each commit

# gpg: Signature made Fri 11 Feb 2022 13:14:55 GMT
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* remotes/vsementsov/tags/pull-nbd-2022-02-09-v2:
  iotests/281: Let NBD connection yield in iothread
  block/nbd: Move s->ioc on AioContext change
  iotests/281: Test lingering timers
  iotests.py: Add QemuStorageDaemon class
  block/nbd: Assert there are no timers when closed
  block/nbd: Delete open timer when done
  block/nbd: Delete reconnect delay timer when done

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agohw/block/fdc-isa: Respect QOM properties when building AML
Bernhard Beschow [Wed, 9 Feb 2022 19:15:58 +0000 (20:15 +0100)]
hw/block/fdc-isa: Respect QOM properties when building AML

Other ISA devices such as serial-isa use the properties in their
build_aml functions. fdc-isa not using them is probably an oversight.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20220209191558.30393-1-shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoMerge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-plugins-090222...
Peter Maydell [Fri, 11 Feb 2022 13:11:49 +0000 (13:11 +0000)]
Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-plugins-090222-1' into staging

Testing and plugin updates:

  - include vhost tests in qtest
  - clean-up gcov ephemera in clean/.gitignore
  - lcitool and docker updates
  - mention .editorconfig in devel notes
  - switch Centos8 to Centos Stream 8
  - remove TCG tracing support
  - add coverage plugin using drcov format
  - expand abilities of libinsn.so plugin
  - use correct logging for i386 int cases
  - move reset of plugin data to start of block
  - deprecate ppc6432abi
  - fix TARGET_ABI_FMT_ptr for softmmu builds

# gpg: Signature made Wed 09 Feb 2022 14:13:14 GMT
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* remotes/stsquad/tags/pull-testing-and-plugins-090222-1: (28 commits)
  include/exec: fix softmmu version of TARGET_ABI_FMT_lx
  linux-user: Remove the deprecated ppc64abi32 target
  plugins: move reset of plugin data to tb_start
  target/i386: use CPU_LOG_INT for IRQ servicing
  tests/plugins: add instruction matching to libinsn.so
  tests/plugin: allow libinsn.so per-CPU counts
  contrib/plugins: add a drcov plugin
  plugins: add helper functions for coverage plugins
  tracing: excise the tcg related from tracetool
  tracing: remove the trace-tcg includes from the build
  tracing: remove TCG memory access tracing
  docs: remove references to TCG tracing
  tests/tcg/sh4: disable another unreliable test
  tests: Update CentOS 8 container to CentOS Stream 8
  tests/lcitool: Allow lcitool-refresh in out-of-tree builds, too
  gitlab: fall back to commit hash in qemu-setup filename
  docs/devel: mention our .editorconfig
  tests/lcitool: Install libibumad to cover RDMA on Debian based distros
  tests: Manually remove libxml2 on MSYS2 runners
  tests/lcitool: Refresh submodule and remove libxml2
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2 years agoiotests/281: Let NBD connection yield in iothread
Hanna Reitz [Fri, 4 Feb 2022 11:10:12 +0000 (12:10 +0100)]
iotests/281: Let NBD connection yield in iothread

Put an NBD block device into an I/O thread, and then read data from it,
hoping that the NBD connection will yield during that read.  When it
does, the coroutine must be reentered in the block device's I/O thread,
which will only happen if the NBD block driver attaches the connection's
QIOChannel to the new AioContext.  It did not do that after 4ddb5d2fde
("block/nbd: drop connection_co") and prior to "block/nbd: Move s->ioc
on AioContext change", which would cause an assertion failure.

To improve our chances of yielding, the NBD server is throttled to
reading 64 kB/s, and the NBD client reads 128 kB, so it should yield at
some point.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoblock/nbd: Move s->ioc on AioContext change
Hanna Reitz [Fri, 4 Feb 2022 11:10:11 +0000 (12:10 +0100)]
block/nbd: Move s->ioc on AioContext change

s->ioc must always be attached to the NBD node's AioContext.  If that
context changes, s->ioc must be attached to the new context.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2033626
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoiotests/281: Test lingering timers
Hanna Reitz [Fri, 4 Feb 2022 11:10:10 +0000 (12:10 +0100)]
iotests/281: Test lingering timers

Prior to "block/nbd: Delete reconnect delay timer when done" and
"block/nbd: Delete open timer when done", both of those timers would
remain scheduled even after successfully (re-)connecting to the server,
and they would not even be deleted when the BDS is deleted.

This test constructs exactly this situation:
(1) Configure an @open-timeout, so the open timer is armed, and
(2) Configure a @reconnect-delay and trigger a reconnect situation
    (which succeeds immediately), so the reconnect delay timer is armed.
Then we immediately delete the BDS, and sleep for longer than the
@open-timeout and @reconnect-delay.  Prior to said patches, this caused
one (or both) of the timer CBs to access already-freed data.

Accessing freed data may or may not crash, so this test can produce
false successes, but I do not know how to show the problem in a better
or more reliable way.  If you run this test on "block/nbd: Assert there
are no timers when closed" and without the fix patches mentioned above,
you should reliably see an assertion failure.
(But all other tests that use the reconnect delay timer (264 and 277)
will fail in that configuration, too; as will nbd-reconnect-on-open,
which uses the open timer.)

Remove this test from the quick group because of the two second sleep
this patch introduces.

(I decided to put this test case into 281, because the main bug this
series addresses is in the interaction of the NBD block driver and I/O
threads, which is precisely the scope of 281.  The test case for that
other bug will also be put into the test class added here.

Also, excuse the test class's name, I couldn't come up with anything
better.  The "yield" part will make sense two patches from now.)

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoiotests.py: Add QemuStorageDaemon class
Hanna Reitz [Fri, 4 Feb 2022 11:10:09 +0000 (12:10 +0100)]
iotests.py: Add QemuStorageDaemon class

This is a rather simple class that allows creating a QSD instance
running in the background and stopping it when no longer needed.

The __del__ handler is a safety net for when something goes so wrong in
a test that e.g. the tearDown() method is not called (e.g. setUp()
launches the QSD, but then launching a VM fails).  We do not want the
QSD to continue running after the test has failed, so __del__() will
take care to kill it.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoblock/nbd: Assert there are no timers when closed
Hanna Reitz [Fri, 4 Feb 2022 11:10:08 +0000 (12:10 +0100)]
block/nbd: Assert there are no timers when closed

Our two timers must not remain armed beyond nbd_clear_bdrvstate(), or
they will access freed data when they fire.

This patch is separate from the patches that actually fix the issue
(HEAD^^ and HEAD^) so that you can run the associated regression iotest
(281) on a configuration that reproducibly exposes the bug.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoblock/nbd: Delete open timer when done
Hanna Reitz [Fri, 4 Feb 2022 11:10:07 +0000 (12:10 +0100)]
block/nbd: Delete open timer when done

We start the open timer to cancel the connection attempt after a while.
Once nbd_do_establish_connection() has returned, the attempt is over,
and we no longer need the timer.

Delete it before returning from nbd_open(), so that it does not persist
for longer.  It has no use after nbd_open(), and just like the reconnect
delay timer, it might well be dangerous if it were to fire afterwards.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoblock/nbd: Delete reconnect delay timer when done
Hanna Reitz [Fri, 4 Feb 2022 11:10:06 +0000 (12:10 +0100)]
block/nbd: Delete reconnect delay timer when done

We start the reconnect delay timer to cancel the reconnection attempt
after a while.  Once nbd_co_do_establish_connection() has returned, this
attempt is over, and we no longer need the timer.

Delete it before returning from nbd_reconnect_attempt(), so that it does
not persist beyond the I/O request that was paused for reconnecting; we
do not want it to fire in a drained section, because all sort of things
can happen in such a section (e.g. the AioContext might be changed, and
we do not want the timer to fire in the wrong context; or the BDS might
even be deleted, and so the timer CB would access already-freed data).

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2 years agoiotests: Test blockdev-reopen with iothreads and throttling
Kevin Wolf [Thu, 3 Feb 2022 14:05:34 +0000 (15:05 +0100)]
iotests: Test blockdev-reopen with iothreads and throttling

The 'throttle' block driver implements .bdrv_co_drain_end, so
blockdev-reopen will have to wait for it to complete in the polling
loop at the end of qmp_blockdev_reopen(). This makes AIO_WAIT_WHILE()
release the AioContext lock, which causes a crash if the lock hasn't
correctly been taken.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20220203140534.36522-3-kwolf@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoblock: Lock AioContext for drain_end in blockdev-reopen
Kevin Wolf [Thu, 3 Feb 2022 14:05:33 +0000 (15:05 +0100)]
block: Lock AioContext for drain_end in blockdev-reopen

bdrv_subtree_drained_end() requires the caller to hold the AioContext
lock for the drained node. Not doing this for nodes outside of the main
AioContext leads to crashes when AIO_WAIT_WHILE() needs to wait and
tries to temporarily release the lock.

Fixes: 3908b7a8994fa5ef7a89aa58cd5a02fc58141592
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2046659
Reported-by: Qing Wang <qinwang@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20220203140534.36522-2-kwolf@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2 years agoinclude/exec: fix softmmu version of TARGET_ABI_FMT_lx
Alex Bennée [Tue, 8 Feb 2022 12:43:33 +0000 (12:43 +0000)]
include/exec: fix softmmu version of TARGET_ABI_FMT_lx

TARGET_ABI_FMT_lx isn't available for softmmu which causes confusion
when trying to print. As abi_ptr == target_ulong use its format string
instead.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2 years agolinux-user: Remove the deprecated ppc64abi32 target
Thomas Huth [Wed, 12 Jan 2022 11:27:22 +0000 (11:27 +0000)]
linux-user: Remove the deprecated ppc64abi32 target

It's likely broken, and nobody cared for picking it up again
during the deprecation phase, so let's remove this now.

Since this is the last entry in deprecated_targets_list, remove
the related code in the configure script, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20211215084958.185214-1-thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220112112722.3641051-32-alex.bennee@linaro.org>

2 years agoplugins: move reset of plugin data to tb_start
Alex Bennée [Fri, 4 Feb 2022 20:43:35 +0000 (20:43 +0000)]
plugins: move reset of plugin data to tb_start

We can't always guarantee we get to the end of a translator loop.
Although this can happen for a variety of reasons it does happen more
often on x86 system emulation when an instruction spans across to an
un-faulted page. This caused confusion of the instruction tracking
data resulting in apparent reverse execution (at least from the
plugins point of view).

Fix this by moving the reset code to plugin_gen_tb_start so we always
start with a clean slate.

We unconditionally reset tcg_ctx->plugin_insn as the
plugin_insn_append code uses this as a proxy for knowing if plugins
are enabled for the current instruction. Otherwise we can hit a race
where a previously instrumented thread leaves a stale value after the
main thread exits and disables instrumentation.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/824
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-27-alex.bennee@linaro.org>

2 years agotarget/i386: use CPU_LOG_INT for IRQ servicing
Alex Bennée [Fri, 4 Feb 2022 20:43:34 +0000 (20:43 +0000)]
target/i386: use CPU_LOG_INT for IRQ servicing

I think these have been wrong since f193c7979c (do not depend on
thunk.h - more log items). Fix them so as not to confuse other
debugging.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220204204335.1689602-26-alex.bennee@linaro.org>

2 years agotests/plugins: add instruction matching to libinsn.so
Alex Bennée [Fri, 4 Feb 2022 20:43:33 +0000 (20:43 +0000)]
tests/plugins: add instruction matching to libinsn.so

This adds simple instruction matching to the libinsn.so plugin which
is useful for examining the execution distance between instructions.
For example to track how often we flush in ARM due to TLB updates:

  -plugin ./tests/plugin/libinsn.so,match=tlbi

which leads to output like this:

  0xffffffc01019a918, 'tlbi vale1is, x1', 5702 hits, 31825 match hits, Δ+8112 since last match, 68859 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5703 hits, 56593 match hits, Δ+17712125 since last match, 33455 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5704 hits, 56594 match hits, Δ+12689 since last match, 33454 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5705 hits, 56595 match hits, Δ+12585 since last match, 33454 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5706 hits, 56596 match hits, Δ+10491 since last match, 33454 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5707 hits, 56597 match hits, Δ+4721 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5708 hits, 56598 match hits, Δ+10733 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5709 hits, 56599 match hits, Δ+61959 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5710 hits, 56600 match hits, Δ+55235 since last match, 33454 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5711 hits, 56601 match hits, Δ+54373 since last match, 33454 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5712 hits, 56602 match hits, Δ+2705 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5713 hits, 56603 match hits, Δ+17262 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5714 hits, 56604 match hits, Δ+17206 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5715 hits, 56605 match hits, Δ+28940 since last match, 33453 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5716 hits, 56606 match hits, Δ+7370 since last match, 33452 avg insns/match
  0xffffffc01019a918, 'tlbi vale1is, x1', 5717 hits, 56607 match hits, Δ+7066 since last match, 33452 avg insns/match

showing we do some sort of TLBI invalidation every 33 thousand
instructions.

Cc: Vasilev Oleg <vasilev.oleg@huawei.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Emilio Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-25-alex.bennee@linaro.org>

2 years agotests/plugin: allow libinsn.so per-CPU counts
Alex Bennée [Fri, 4 Feb 2022 20:43:32 +0000 (20:43 +0000)]
tests/plugin: allow libinsn.so per-CPU counts

We won't go fully flexible but for most system emulation 8 vCPUs
resolution should be enough for anybody ;-)

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-24-alex.bennee@linaro.org>

2 years agocontrib/plugins: add a drcov plugin
Ivanov Arkady [Fri, 4 Feb 2022 20:43:31 +0000 (20:43 +0000)]
contrib/plugins: add a drcov plugin

This patch adds the ability to generate files in drcov format. Primary
goal this script is to have coverage logfiles thatwork in Lighthouse.

Signed-off-by: Ivanov Arkady <arkadiy.ivanov@ispras.ru>
Message-Id: <163491884553.304355.13246023070235438959.stgit@pc-System-Product-Name>
[AJB: use g_ptr_array instead of slist]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220204204335.1689602-23-alex.bennee@linaro.org>

2 years agoplugins: add helper functions for coverage plugins
Ivanov Arkady [Fri, 4 Feb 2022 20:43:30 +0000 (20:43 +0000)]
plugins: add helper functions for coverage plugins

Which provide information about:
- start_code.
- end_code.
- entry.
- path to the executable binary.

Signed-off-by: Ivanov Arkady <arkadiy.ivanov@ispras.ru>
Message-Id: <163491883461.304355.8210754161847179432.stgit@pc-System-Product-Name>
[AJB: reword title, better descriptions, defaults, rm export, fix include]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220204204335.1689602-22-alex.bennee@linaro.org>

2 years agotracing: excise the tcg related from tracetool
Alex Bennée [Fri, 4 Feb 2022 20:43:29 +0000 (20:43 +0000)]
tracing: excise the tcg related from tracetool

Now we have no TCG trace events and no longer handle them in the code
we can remove the handling from the tracetool to generate them. vcpu
tracing is still available although the existing syscall event is an
exercise in redundancy (plugins and -strace can also get the
information).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Luis Vilanova <vilanova@imperial.ac.uk>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220204204335.1689602-21-alex.bennee@linaro.org>

2 years agotracing: remove the trace-tcg includes from the build
Alex Bennée [Fri, 4 Feb 2022 20:43:28 +0000 (20:43 +0000)]
tracing: remove the trace-tcg includes from the build

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Luis Vilanova <vilanova@imperial.ac.uk>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-20-alex.bennee@linaro.org>

2 years agotracing: remove TCG memory access tracing
Alex Bennée [Fri, 4 Feb 2022 20:43:27 +0000 (20:43 +0000)]
tracing: remove TCG memory access tracing

If you really want to trace all memory operations TCG plugins gives
you a more flexible interface for doing so.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Luis Vilanova <vilanova@imperial.ac.uk>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220204204335.1689602-19-alex.bennee@linaro.org>

2 years agodocs: remove references to TCG tracing
Alex Bennée [Fri, 4 Feb 2022 20:43:26 +0000 (20:43 +0000)]
docs: remove references to TCG tracing

Users wanting this sort of functionality should turn to TCG plugins
instead.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Luis Vilanova <vilanova@imperial.ac.uk>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220204204335.1689602-18-alex.bennee@linaro.org>

2 years agotests/tcg/sh4: disable another unreliable test
Alex Bennée [Fri, 4 Feb 2022 20:43:25 +0000 (20:43 +0000)]
tests/tcg/sh4: disable another unreliable test

Given the other failures it looks like general thread handling on sh4
is sketchy. It fails more often on CI than on my developer machine
though. See https://gitlab.com/qemu-project/qemu/-/issues/856 for more
details.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Laurent Vivier <laurent@vivier.eu>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220204204335.1689602-17-alex.bennee@linaro.org>