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6 years agoRemove the deprecated -tdf option
Thomas Huth [Mon, 19 Feb 2018 20:23:40 +0000 (21:23 +0100)]
Remove the deprecated -tdf option

It's been marked as deprecated since a very long time already, and
the parameter is not doing anything useful anymore except for printing
a warning, so it's now time to finally get rid of this option.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1519071820-4062-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
6 years agog364fb: fix DirtyBitmapSnapshot leak
Paolo Bonzini [Wed, 14 Feb 2018 16:36:33 +0000 (17:36 +0100)]
g364fb: fix DirtyBitmapSnapshot leak

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
6 years agoMerge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Peter Maydell [Tue, 6 Mar 2018 11:20:44 +0000 (11:20 +0000)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 05 Mar 2018 17:45:51 GMT
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (38 commits)
  block: Fix NULL dereference on empty drive error
  qcow2: Replace align_offset() with ROUND_UP()
  block/ssh: Add basic .bdrv_truncate()
  block/ssh: Make ssh_grow_file() blocking
  block/ssh: Pull ssh_grow_file() from ssh_create()
  qemu-img: Make resize error message more general
  qcow2: make qcow2_co_create2() a coroutine_fn
  block: rename .bdrv_create() to .bdrv_co_create_opts()
  Revert "IDE: Do not flush empty CDROM drives"
  block: test blk_aio_flush() with blk->root == NULL
  block: add BlockBackend->in_flight counter
  block: extract AIO_WAIT_WHILE() from BlockDriverState
  aio: rename aio_context_in_iothread() to in_aio_context_home_thread()
  docs: document how to use the l2-cache-entry-size parameter
  specs/qcow2: Fix documentation of the compressed cluster descriptor
  iotest 033: add misaligned write-zeroes test via truncate
  block: fix write with zero flag set and iovector provided
  block: Drop unused .bdrv_co_get_block_status()
  vvfat: Switch to .bdrv_co_block_status()
  vpc: Switch to .bdrv_co_block_status()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# include/block/block.h

6 years agoMerge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180306' into staging
Peter Maydell [Tue, 6 Mar 2018 10:21:35 +0000 (10:21 +0000)]
Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180306' into staging

ppc patch queue 2018-03-06

This pull request supersedes ppc-for-2.12-20180302 which had compile
problems with some gcc versions.  It also contains a few additional
patches.

Highlights are:
    * New Sam460ex machine type
    * Yet more fixes related to vcpu id allocation for spapr
    * Numerous macio cleanupsr
    * Some enhancements to the Spectre/Meltdown fixes for pseries,
      allowing use of a better mitigation for indirect branch based
      exploits
    * New pseries machine types with Spectre/Meltdown mitigations
      enabled (stop gap until libvirt and management understands the
      machine options)
    * A handful of other fixes

# gpg: Signature made Tue 06 Mar 2018 04:01:00 GMT
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.12-20180306: (30 commits)
  PowerPC: Add TS bits into msr_mask
  adb: add trace-events for monitoring keyboard/mouse during bus enumeration
  PPC: e500: Fix duplicate kernel load and device tree overlap
  hw/ppc/spapr,e500: Use new property "stdout-path" for boot console
  ppc/spapr-caps: Define the pseries-2.12-sxxm machine type
  ppc/spapr-caps: Convert cap-ibs to custom spapr-cap
  ppc/spapr-caps: Convert cap-sbbc to custom spapr-cap
  ppc/spapr-caps: Convert cap-cfpc to custom spapr-cap
  ppc/spapr-caps: Add support for custom spapr_capabilities
  target/ppc: Check mask when setting cap_ppc_safe_indirect_branch
  macio: remove macio_init() function
  macio: move setting of CUDA timebase frequency to macio_common_realize()
  mac_newworld: use object link to pass OpenPIC object to macio
  openpic: move OpenPIC state and related definitions to openpic.h
  openpic: move KVM-specific declarations into separate openpic_kvm.h file
  mac_oldworld: use object link to pass heathrow PIC object to macio
  macio: move macio related structures and defines into separate macio.h file
  heathrow: change heathrow_pic_init() to return the heathrow device
  heathrow: convert to trace-events
  heathrow: QOMify heathrow PIC
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoPowerPC: Add TS bits into msr_mask
Simon Guo [Mon, 5 Mar 2018 10:53:48 +0000 (18:53 +0800)]
PowerPC: Add TS bits into msr_mask

During migration, after MSR bits is synced, cpu_post_load() will use
msr_mask to determine which PPC MSR bits will be applied into the target
side. Hardware Transaction Memory(HTM) has been supported since Power8,
but TS0/TS1 bit was not in msr_mask yet. That will prevent target KVM
from loading TM checkpointed values.

This patch adds TS bits into msr_mask for Power8, so that transactional
application can be migrated across qemu.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoadb: add trace-events for monitoring keyboard/mouse during bus enumeration
Mark Cave-Ayland [Mon, 5 Mar 2018 21:51:13 +0000 (21:51 +0000)]
adb: add trace-events for monitoring keyboard/mouse during bus enumeration

This is useful to help diagnose problems related to address clashes during
MacOS 9 boot.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoPPC: e500: Fix duplicate kernel load and device tree overlap
David Engraf [Fri, 2 Mar 2018 11:20:13 +0000 (12:20 +0100)]
PPC: e500: Fix duplicate kernel load and device tree overlap

This patch fixes an incorrect behavior when the -kernel argument has been
specified without -bios. In this case the kernel was loaded twice. At address
32M as a raw image and afterwards by load_elf/load_uimage at the
corresponding load address. In this case the region for the device tree and
the raw kernel image may overlap.

The patch fixes the behavior by loading the kernel image once with
load_elf/load_uimage and skips loading the raw image.

When here do not use bios_name/size for the kernel and use a more generic
name called payload_name/size.

New in v3: dtb must be stored between kernel and initrd because Linux can
           handle the dtb only within the first 64MB. Add a comment to
           clarify the behavior.

Signed-off-by: David Engraf <david.engraf@sysgo.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agohw/ppc/spapr,e500: Use new property "stdout-path" for boot console
Nikunj A Dadhania [Thu, 1 Mar 2018 06:05:50 +0000 (11:35 +0530)]
hw/ppc/spapr,e500: Use new property "stdout-path" for boot console

Linux kernel commit 2a9d832cc9aae21ea827520fef635b6c49a06c6d
(of: Add bindings for chosen node, stdout-path) deprecated chosen property
"linux,stdout-path" and "stdout".

Introduce the new property "stdout-path" and continue supporting the older
property to remain compatible with existing/older firmware. This older property
can be deprecated after 5 years.

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/spapr-caps: Define the pseries-2.12-sxxm machine type
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:38:04 +0000 (17:38 +1100)]
ppc/spapr-caps: Define the pseries-2.12-sxxm machine type

The sxxm (speculative execution exploit mitigation) machine type is a
variant of the 2.12 machine type with workarounds for speculative
execution vulnerabilities enabled by default.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/spapr-caps: Convert cap-ibs to custom spapr-cap
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:38:02 +0000 (17:38 +1100)]
ppc/spapr-caps: Convert cap-ibs to custom spapr-cap

Convert cap-ibs (indirect branch speculation) to a custom spapr-cap
type.

All tristate caps have now been converted to custom spapr-caps, so
remove the remaining support for them.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Don't explicitly list "?"/help option, trust convention]
[dwg: Fold tristate removal into here, to not break bisect]
[dwg: Fix minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/spapr-caps: Convert cap-sbbc to custom spapr-cap
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:38:01 +0000 (17:38 +1100)]
ppc/spapr-caps: Convert cap-sbbc to custom spapr-cap

Convert cap-sbbc (speculation barrier bounds checking) to a custom
spapr-cap type.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Removed trailing whitespace]
[dwg: Don't explicitly list "?"/help option, trust convention]
[dwg: Fix some minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/spapr-caps: Convert cap-cfpc to custom spapr-cap
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:38:00 +0000 (17:38 +1100)]
ppc/spapr-caps: Convert cap-cfpc to custom spapr-cap

Convert cap-cfpc (cache flush on privilege change) to a custom spapr-cap
type.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Don't explicitly list "?"/help option, trusting convention]
[dwg: Strip no-longer-necessary ATTRIBUTE_UNUSED back off]
[dwg: Fix some minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc/spapr-caps: Add support for custom spapr_capabilities
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:37:59 +0000 (17:37 +1100)]
ppc/spapr-caps: Add support for custom spapr_capabilities

There are currently 2 implemented types of spapr-caps, boolean and
tristate. However there may be a need for caps which don't fit either of
these options. Add a custom capability type for which a list of custom
valid strings can be specified and implement the get/set functions for
these. Also add a field for help text to describe the available options.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Change "help" option to "?" matching qemu conventions]
[dwg: Add ATTRIBUTE_UNUSED to avoid breaking bisect]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agotarget/ppc: Check mask when setting cap_ppc_safe_indirect_branch
Suraj Jitindar Singh [Thu, 1 Mar 2018 06:37:58 +0000 (17:37 +1100)]
target/ppc: Check mask when setting cap_ppc_safe_indirect_branch

Check the character and character_mask field when setting
cap_ppc_safe_indirect_branch based on the hypervisor response
to KVM_PPC_GET_CPU_CHAR. Previously the mask field wasn't checked
which was incorrect.

Fixes: 8acc2ae5 (target/ppc/kvm: Add cap_ppc_safe_[cache/bounds_check/indirect_branch])

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: remove macio_init() function
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:43 +0000 (20:32 +0000)]
macio: remove macio_init() function

Move the remaining comment into macio.c for reference, then remove the
macio_init() function and instantiate the macio devices for both Old World
and New World machines via qdev_init_nofail() directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: move setting of CUDA timebase frequency to macio_common_realize()
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:42 +0000 (20:32 +0000)]
macio: move setting of CUDA timebase frequency to macio_common_realize()

This removes the last of the functionality from macio_init() in preparation
for its subsequent removal.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomac_newworld: use object link to pass OpenPIC object to macio
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:41 +0000 (20:32 +0000)]
mac_newworld: use object link to pass OpenPIC object to macio

Also switch macio_newworld_realize() over to use it rather than using the pic_mem
memory region directly.

Now that both Old World and New World macio devices no longer make use of the
pic_mem memory region directly, we can remove it.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoopenpic: move OpenPIC state and related definitions to openpic.h
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:40 +0000 (20:32 +0000)]
openpic: move OpenPIC state and related definitions to openpic.h

This is to faciliate access to OpenPICState when wiring up the PIC to the macio
controller.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoopenpic: move KVM-specific declarations into separate openpic_kvm.h file
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:39 +0000 (20:32 +0000)]
openpic: move KVM-specific declarations into separate openpic_kvm.h file

This is needed before the next patch because the target-dependent kvm stub
uses the existing kvm_openpic_connect_vcpu() declaration, making it impossible
to move the device-specific declarations into the same file without breaking
ppc-linux-user compilation.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomac_oldworld: use object link to pass heathrow PIC object to macio
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:38 +0000 (20:32 +0000)]
mac_oldworld: use object link to pass heathrow PIC object to macio

Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
memory region directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: move macio related structures and defines into separate macio.h file
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:37 +0000 (20:32 +0000)]
macio: move macio related structures and defines into separate macio.h file

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoheathrow: change heathrow_pic_init() to return the heathrow device
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:36 +0000 (20:32 +0000)]
heathrow: change heathrow_pic_init() to return the heathrow device

This enables the device to be made available during the setup of the Old World
machine. In order to pass back the previous set of IRQs we temporarily introduce
a new pic_irqs parameter until it can be removed.

An additional benefit of this change is that it is also possible to remove the
pic_mem pointer used for macio by accessing the memory region via sysbus.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoheathrow: convert to trace-events
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:35 +0000 (20:32 +0000)]
heathrow: convert to trace-events

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoheathrow: QOMify heathrow PIC
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:34 +0000 (20:32 +0000)]
heathrow: QOMify heathrow PIC

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: move ESCC device within the macio device
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:33 +0000 (20:32 +0000)]
macio: move ESCC device within the macio device

Now that the ESCC device is instantiated directly via qdev, move it to within
the macio device and wire up the IRQs and memory regions using the sysbus API.

This enables to remove the now-obsolete escc_mem parameter to the macio_init()
function.

(Note this patch also contains small touch-ups to the formatting in
macio_escc_legacy_setup() and ppc_heathrow_init() in order to keep checkpatch
happy)

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agomacio: embed DBDMA device directly within macio
Mark Cave-Ayland [Wed, 28 Feb 2018 20:32:32 +0000 (20:32 +0000)]
macio: embed DBDMA device directly within macio

The current recommendation is to embed subdevices directly within their container
device, so do this for the DBDMA device.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: harden code that depends on VSMT
Greg Kurz [Tue, 27 Feb 2018 15:23:07 +0000 (16:23 +0100)]
spapr: harden code that depends on VSMT

VSMT must be set in order to compute VCPU ids. This means that the
following functions must not be called before spapr_set_vsmt_mode()
was called:
- spapr_vcpu_id()
- spapr_is_thread0_in_vcore()
- xics_max_server_number()

We had a recent regression where the latter would be called before VSMT
was set, and broke migration of some old machine types. This patch
adds assert() in the above functions to avoid problems in the future.

Also, since VSMT is really a CPU related thing, spapr_set_vsmt_mode() is
now called from spapr_init_cpus(), just before the first VSMT user.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: register dummy ICPs later
Greg Kurz [Tue, 27 Feb 2018 15:22:58 +0000 (16:22 +0100)]
spapr: register dummy ICPs later

Some older machine types create more ICPs than needed. We hence
need to register up to xics_max_server_number() dummy ICPs to
accomodate the migration of these machine types.

Recent VSMT rework changed xics_max_server_number() to return

    DIV_ROUND_UP(max_cpus * spapr->vsmt, smp_threads)

instead of

    DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), smp_threads);

The change is okay but it requires spapr->vsmt to be set, which
isn't the case with the current code. This causes the formula to
return zero and we don't create dummy ICPs. This breaks migration
of older guests as reported here:

    https://bugzilla.redhat.com/show_bug.cgi?id=1549087

The dummy ICP workaround doesn't really have a dependency on XICS
itself. But it does depend on proper VCPU id numbering and it must
be applied before creating vCPUs (ie, creating real ICPs). So this
patch moves the workaround to spapr_init_cpus(), which already
assumes VSMT to be set.

Fixes: 72194664c8a1 ("spapr: use spapr->vsmt to compute VCPU ids")
Reported-by: Lukas Doktor <ldoktor@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc: Add aCube Sam460ex board
BALATON Zoltan [Mon, 19 Feb 2018 10:34:25 +0000 (11:34 +0100)]
ppc: Add aCube Sam460ex board

Add emulation of aCube Sam460ex board based on AMCC 460EX embedded SoC.
This is not a complete implementation yet with a lot of components
still missing but enough for the U-Boot firmware to start and to boot
a Linux kernel or AROS.

Signed-off-by: François Revol <revol@free.fr>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agopc-bios: Added u-boot-sam460 firmware binary
BALATON Zoltan [Fri, 2 Mar 2018 11:50:14 +0000 (12:50 +0100)]
pc-bios: Added u-boot-sam460 firmware binary

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoroms: Added git submodule for u-boot-sam460 (firmware for sam460ex)
BALATON Zoltan [Fri, 2 Mar 2018 11:50:14 +0000 (12:50 +0100)]
roms: Added git submodule for u-boot-sam460 (firmware for sam460ex)

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc440: Add emulation of plb-pcix controller found in some 440 SoCs
BALATON Zoltan [Mon, 19 Feb 2018 10:34:25 +0000 (11:34 +0100)]
ppc440: Add emulation of plb-pcix controller found in some 440 SoCs

This is the PCIX controller found in newer 440 core SoCs e.g. the
AMMC 460EX. The device tree refers to this as plb-pcix compared to
the plb-pci controller in older 440 SoCs.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
[dwg: Remove hwaddr from trace-events, that doesn't work with some
 trace backends]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoppc440_uc: Fix unintialized variable warning with older gcc
BALATON Zoltan [Fri, 2 Mar 2018 21:43:23 +0000 (22:43 +0100)]
ppc440_uc: Fix unintialized variable warning with older gcc

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agospapr: fix missing CPU core nodes in DT when running with TCG
Greg Kurz [Fri, 16 Feb 2018 18:58:06 +0000 (19:58 +0100)]
spapr: fix missing CPU core nodes in DT when running with TCG

Commit 5d0fb1508e2d "spapr: consolidate the VCPU id numbering logic
in a single place" introduced a helper to detect thread0 of a virtual
core based on its VCPU id. This is used to create CPU core nodes in
the DT, but it is broken in TCG.

$ qemu-system-ppc64 -nographic -accel tcg -machine dumpdtb=dtb.bin \
                    -smp cores=16,maxcpus=16,threads=1
$ dtc -f -O dts dtb.bin | grep POWER8
                PowerPC,POWER8@0 {
                PowerPC,POWER8@8 {

instead of the expected 16 cores that we get with KVM:

$ dtc -f -O dts dtb.bin | grep POWER8
                PowerPC,POWER8@0 {
                PowerPC,POWER8@8 {
                PowerPC,POWER8@10 {
                PowerPC,POWER8@18 {
                PowerPC,POWER8@20 {
                PowerPC,POWER8@28 {
                PowerPC,POWER8@30 {
                PowerPC,POWER8@38 {
                PowerPC,POWER8@40 {
                PowerPC,POWER8@48 {
                PowerPC,POWER8@50 {
                PowerPC,POWER8@58 {
                PowerPC,POWER8@60 {
                PowerPC,POWER8@68 {
                PowerPC,POWER8@70 {
                PowerPC,POWER8@78 {

This happens because spapr_get_vcpu_id() maps VCPU ids to
cs->cpu_index in TCG mode. This confuses the code in
spapr_is_thread0_in_vcore(), since it assumes thread0 VCPU
ids to have a spapr->vsmt spacing.

    spapr_get_vcpu_id(cpu) % spapr->vsmt == 0

Actually, there's no real reason to expose cs->cpu_index instead
of the VCPU id, since we also generate it with TCG. Also we already
set it explicitly in spapr_set_vcpu_id(), so there's no real reason
either to call kvm_arch_vcpu_id() with KVM.

This patch unifies spapr_get_vcpu_id() to always return the computed
VCPU id both in TCG and KVM. This is one step forward towards KVM<->TCG
migration.

Fixes: 5d0fb1508e2d
Reported-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
6 years agoblock: Fix NULL dereference on empty drive error
Kevin Wolf [Mon, 5 Mar 2018 14:59:35 +0000 (15:59 +0100)]
block: Fix NULL dereference on empty drive error

blk_error_action() sends a BLOCK_IO_ERROR QMP event which includes the
node name of its root node. If the BlockBackend represents an empty
drive, there is no root node, so we should not try to access its node
name. Make the field optional in the event and include it only when
the BlockBackend isn't empty.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
6 years agoMerge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Peter Maydell [Mon, 5 Mar 2018 16:41:20 +0000 (16:41 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

Mostly patches that are only indirectly related to the block layer, but I've
reviewed them and there is no maintainer.

# gpg: Signature made Mon 05 Mar 2018 09:39:50 GMT
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  README: Document 'git-publish' workflow
  Add a git-publish configuration file
  tests/libqos: Check for valid dev pointer when looking for PCI devices
  util/uri.c: wrap single statement blocks with braces {}
  util/uri.c: remove brackets that wrap `return` statement's content.
  util/uri.c: Coding style check, Only whitespace involved

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/kraxel/tags/ui-20180305-pull-request' into...
Peter Maydell [Mon, 5 Mar 2018 15:16:30 +0000 (15:16 +0000)]
Merge remote-tracking branch 'remotes/kraxel/tags/ui-20180305-pull-request' into staging

ui: build curses, gtk and sdl as modules.

# gpg: Signature made Mon 05 Mar 2018 08:48:24 GMT
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/ui-20180305-pull-request:
  ui/sdl: build as module
  audio: rename CONFIG_* to CONFIG_AUDIO_*
  ui/curses: build as module
  ui/gtk: build as module
  configure: opengl doesn't depend on x11
  configure: add X11 vars to config-host.mak
  console: add ui module loading support
  console: add and use qemu_display_find_default
  egl-headless: switch over to new display registry
  curses: switch over to new display registry
  cocoa: switch over to new display registry
  sdl: switch over to new display registry
  console: add qemu display registry, add gtk

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
Peter Maydell [Mon, 5 Mar 2018 14:27:24 +0000 (14:27 +0000)]
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 05 Mar 2018 03:06:59 GMT
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  tap: setting error appropriately when calling net_init_tap_one()
  hw/net: Remove unnecessary header includes
  net: Add a new convenience option "--nic" to configure default/on-board NICs
  net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands
  net: Remove the deprecated way of dumping network packets
  net: Make net_client_init() static
  net: Only show vhost-user in the help text if CONFIG_POSIX is defined
  net: List available netdevs with "-netdev help"
  net: Move error reporting from net_init_client/netdev to the calling site

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into...
Peter Maydell [Mon, 5 Mar 2018 13:29:31 +0000 (13:29 +0000)]
Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Sun 04 Mar 2018 17:32:25 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  target/m68k: add fscale, fgetman and fgetexp
  softfloat: use floatx80_infinity in softfloat
  target/m68k: add fmod/frem
  softfloat: export some functions
  target/m68k: TCGv returned by gen_load() must be freed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoMerge remote-tracking branch 'remotes/ericb/tags/pull-qapi-2018-03-01-v4' into staging
Peter Maydell [Mon, 5 Mar 2018 09:47:37 +0000 (09:47 +0000)]
Merge remote-tracking branch 'remotes/ericb/tags/pull-qapi-2018-03-01-v4' into staging

qapi patches for 2018-03-01

- Markus Armbruster: Modularize generated QAPI code

# gpg: Signature made Fri 02 Mar 2018 19:50:16 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-qapi-2018-03-01-v4: (30 commits)
  qapi: Don't create useless directory qapi-generated
  Fix up dangling references to qmp-commands.* in comment and doc
  qapi: Move qapi-schema.json to qapi/, rename generated files
  docs: Correct outdated information on QAPI
  docs/devel/writing-qmp-commands: Update for modular QAPI
  qapi: Empty out qapi-schema.json
  Include less of the generated modular QAPI headers
  qapi: Generate separate .h, .c for each module
  watchdog: Consolidate QAPI into single file
  qapi/common: Fix guardname() for funny filenames
  qapi/types qapi/visit: Generate built-in stuff into separate files
  qapi: Make code-generating visitors use QAPIGen more
  qapi: Rename generated qmp-marshal.c to qmp-commands.c
  qapi: Record 'include' directives in intermediate representation
  qapi: Generate in source order
  qapi: Record 'include' directives in parse tree
  qapi: Concentrate QAPISchemaParser.exprs updates in .__init__()
  qapi: Lift error reporting from QAPISchema.__init__() to callers
  qapi/common: Eliminate QAPISchema.exprs
  qapi: Improve include file name reporting in error messages
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6 years agoREADME: Document 'git-publish' workflow
Fam Zheng [Mon, 26 Feb 2018 03:03:26 +0000 (11:03 +0800)]
README: Document 'git-publish' workflow

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20180226030326.20219-3-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agoAdd a git-publish configuration file
Fam Zheng [Mon, 26 Feb 2018 03:03:25 +0000 (11:03 +0800)]
Add a git-publish configuration file

git-publish [1] is a convenient tool to send patches and has been
popular among QEMU developers.  Recently it has been made available in
Fedora/Debian official repo.

One nice feature of the tool is a per-project configuration with
profiles, especially in which the cccmd option is a handy method to
create the Cc list.

[1]: https://github.com/stefanha/git-publish

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20180226030326.20219-2-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agotests/libqos: Check for valid dev pointer when looking for PCI devices
Thomas Huth [Tue, 27 Feb 2018 06:44:44 +0000 (07:44 +0100)]
tests/libqos: Check for valid dev pointer when looking for PCI devices

dev could be NULL if the PCI device can not be found due to some
reasons, so we must not dereference the pointer in this case.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519713884-2346-1-git-send-email-thuth@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agoutil/uri.c: wrap single statement blocks with braces {}
Su Hang [Sun, 25 Feb 2018 04:35:58 +0000 (12:35 +0800)]
util/uri.c: wrap single statement blocks with braces {}

For this patch, using curly braces to wrap `if` `while` `else` statements,
which only hold single statement. For example:
'''
if (cond)
    statement;
'''
to
'''
if (cond) {
    statement;
}
'''

And using tricks that compare the disassemblies before and after
code changes, to make sure code logic isn't changed:
'''
git checkout master
make util/uri.o
strip util/uri.o
objdump -Drx util/uri.o > /tmp/uri-master.txt
git checkout cleanupbranch
make util/uri.o
strip util/uri.o
objdump -Drx util/uri.o > /tmp/uri-cleanup.txt

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agoutil/uri.c: remove brackets that wrap `return` statement's content.
Su Hang [Sun, 25 Feb 2018 04:35:57 +0000 (12:35 +0800)]
util/uri.c: remove brackets that wrap `return` statement's content.

only remove brackets that wrap `return` statements' content.

use `perl -pi -e "s/return \((.*?)\);/return \1;/g" util/uri.c`
to remove pattern like this: "return (1);"

Signed-off-by: Su Hang <suhang16@mails.ucas.ac.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519533358-13759-3-git-send-email-suhang16@mails.ucas.ac.cn
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agoutil/uri.c: Coding style check, Only whitespace involved
Su Hang [Sun, 25 Feb 2018 04:35:56 +0000 (12:35 +0800)]
util/uri.c: Coding style check, Only whitespace involved

Using `clang-format -i util/uri.c` first, then change back few code
manually, to make sure only whitespace involved.

Signed-off-by: Su Hang <suhang16@mails.ucas.ac.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519533358-13759-2-git-send-email-suhang16@mails.ucas.ac.cn
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
6 years agoui/sdl: build as module
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:47 +0000 (11:05 +0100)]
ui/sdl: build as module

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-14-kraxel@redhat.com

6 years agoaudio: rename CONFIG_* to CONFIG_AUDIO_*
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:46 +0000 (11:05 +0100)]
audio: rename CONFIG_* to CONFIG_AUDIO_*

This avoids a name clash for CONFIG_SDL, which is used by both sdl video
support and sdl audio support.  It also more clear that this is a audio
driver configuration.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-13-kraxel@redhat.com

6 years agoui/curses: build as module
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:45 +0000 (11:05 +0100)]
ui/curses: build as module

Also drop curses libs from libs_softmmu.  Add CURSES_{CFLAGS,LIBS}
variables so we can use them for linking the curses module.

Also make target/unicore32/helper.o depend on curses which uses curses
directly for some reason ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-12-kraxel@redhat.com

6 years agoui/gtk: build as module
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:44 +0000 (11:05 +0100)]
ui/gtk: build as module

Also drop gtk and vte libs from libs_softmmu, so the libs are not
pulled in unless the gtk module actually gets loaded.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-11-kraxel@redhat.com

6 years agoconfigure: opengl doesn't depend on x11
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:43 +0000 (11:05 +0100)]
configure: opengl doesn't depend on x11

So remove x11 from pkg-config check and don't
add x11 cflags/libs to opengl cflags/libs.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-10-kraxel@redhat.com

6 years agoconfigure: add X11 vars to config-host.mak
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:42 +0000 (11:05 +0100)]
configure: add X11 vars to config-host.mak

Simplifies handling the X11 dependency,
also makes ui/Makefile.objs more readable.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-9-kraxel@redhat.com

6 years agoconsole: add ui module loading support
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:41 +0000 (11:05 +0100)]
console: add ui module loading support

If a requested user interface is not available, try loading it as
module, simliar to block layer modules.  Needed to keep things working
when followup patches start to build user interfaces as modules.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-8-kraxel@redhat.com

6 years agoconsole: add and use qemu_display_find_default
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:40 +0000 (11:05 +0100)]
console: add and use qemu_display_find_default

Using the new display registry instead of #ifdefs in vl.c.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-7-kraxel@redhat.com

6 years agoegl-headless: switch over to new display registry
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:39 +0000 (11:05 +0100)]
egl-headless: switch over to new display registry

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-6-kraxel@redhat.com

6 years agocurses: switch over to new display registry
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:38 +0000 (11:05 +0100)]
curses: switch over to new display registry

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-5-kraxel@redhat.com

6 years agococoa: switch over to new display registry
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:37 +0000 (11:05 +0100)]
cocoa: switch over to new display registry

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-4-kraxel@redhat.com

6 years agosdl: switch over to new display registry
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:36 +0000 (11:05 +0100)]
sdl: switch over to new display registry

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-3-kraxel@redhat.com

6 years agoconsole: add qemu display registry, add gtk
Gerd Hoffmann [Thu, 1 Mar 2018 10:05:35 +0000 (11:05 +0100)]
console: add qemu display registry, add gtk

Add a registry for user interfaces.  Add qemu_display_init and
qemu_display_early_init helper functions for display initialization.

Hook up gtk ui as first user.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180301100547.18962-2-kraxel@redhat.com

6 years agotap: setting error appropriately when calling net_init_tap_one()
Jay Zhou [Fri, 2 Mar 2018 09:04:44 +0000 (17:04 +0800)]
tap: setting error appropriately when calling net_init_tap_one()

If netdev_add tap,id=net0,...,vhost=on failed in net_init_tap_one(),
the followed up device_add virtio-net-pci,netdev=net0 will fail
too, prints:

   TUNSETOFFLOAD ioctl() failed: Bad file descriptor TUNSETOFFLOAD
   ioctl() failed: Bad file descriptor

The reason is that the fd of tap is closed when error occured after
calling net_init_tap_one().

The fd should be closed when calling net_init_tap_one failed:
   - if tap_set_sndbuf() failed
   - if tap_set_sndbuf() succeeded but vhost failed to open or
     initialize with vhostforce flag on
   - with wrong vhost command line parameter
The fd should not be closed just because vhost failed to open or
initialize but without vhostforce flag. So the followed up
device_add can fall back to userspace virtio successfully.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agohw/net: Remove unnecessary header includes
Thomas Huth [Thu, 22 Feb 2018 09:58:37 +0000 (10:58 +0100)]
hw/net: Remove unnecessary header includes

Headers like "hw/loader.h" and "qemu/sockets.h" are not needed in
the hw/net/*.c files. And Some other headers are included via other
headers already, so we can drop them, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Add a new convenience option "--nic" to configure default/on-board NICs
Thomas Huth [Wed, 21 Feb 2018 10:18:36 +0000 (11:18 +0100)]
net: Add a new convenience option "--nic" to configure default/on-board NICs

The legacy "-net" option can be quite confusing for the users since most
people do not expect to get a "vlan" hub between their emulated guest
hardware and the host backend. But so far, we are also not able to get
rid of "-net" completely, since it is the only way to configure on-board
NICs that can not be instantiated via "-device" yet. It's also a little
bit shorter to type "-net nic -net tap" instead of "-device xyz,netdev=n1
-netdev tap,id=n1".

So what we need is a new convenience option that is shorter to type than
the full -device + -netdev stuff, and which can be used to configure the
on-board NICs that can not be handled via -device yet. Thus this patch now
provides such a new option "--nic": It adds an entry in the nd_table to
configure a on-board / default NIC, creates a host backend and connects
the two directly, without a confusing "vlan" hub inbetween.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands
Thomas Huth [Wed, 21 Feb 2018 10:18:35 +0000 (11:18 +0100)]
net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands

They are deprecated since QEMU v2.10, and so far nobody complained that
these commands are still necessary for any reason - and since you can use
'netdev_add' and 'netdev_remove' instead, there also should not be any
real reason. Since they are also standing in the way for the upcoming
'vlan' clean-up, it's now time to remove them.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Remove the deprecated way of dumping network packets
Thomas Huth [Wed, 21 Feb 2018 10:18:34 +0000 (11:18 +0100)]
net: Remove the deprecated way of dumping network packets

"-net dump" has been marked as deprecated since QEMU v2.10, since it
only works with the deprecated 'vlan' parameter (or hubs). Network
dumping should be done with "-object filter-dump" nowadays instead.
Since nobody complained so far about the deprecation message, let's
finally get rid of "-net dump" now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Make net_client_init() static
Thomas Huth [Wed, 21 Feb 2018 10:18:33 +0000 (11:18 +0100)]
net: Make net_client_init() static

The function is only used within net.c, so there's no need that
this is a global function.

While we're at it, also remove the unused prototype compute_mcast_idx()
(the function has been removed in commit d9caeb09b107e91122d10ba4a08a).

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Only show vhost-user in the help text if CONFIG_POSIX is defined
Thomas Huth [Wed, 21 Feb 2018 10:18:32 +0000 (11:18 +0100)]
net: Only show vhost-user in the help text if CONFIG_POSIX is defined

According to net/Makefile.objs we only link in the vhost-user code
if CONFIG_POSIX has been set. So the help screen should also only
show this information if CONFIG_POSIX has been defined.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: List available netdevs with "-netdev help"
Thomas Huth [Wed, 21 Feb 2018 10:18:31 +0000 (11:18 +0100)]
net: List available netdevs with "-netdev help"

Other options like "-chardev" or "-device" feature a nice help text
with the available devices when being called with "help" or "?".
Since it is quite useful, especially if you want to see which network
backends have been compiled into the QEMU binary, let's provide such
a help text for "-netdev", too.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agonet: Move error reporting from net_init_client/netdev to the calling site
Thomas Huth [Wed, 21 Feb 2018 10:18:30 +0000 (11:18 +0100)]
net: Move error reporting from net_init_client/netdev to the calling site

It looks strange that net_init_client() and net_init_netdev() both
take an "Error **errp" parameter, but then do the error reporting
with "error_report_err(local_err)" on their own. Let's move the
error reporting to the calling site instead to simplify this code
a little bit.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
6 years agotarget/m68k: add fscale, fgetman and fgetexp
Laurent Vivier [Sat, 24 Feb 2018 20:18:02 +0000 (21:18 +0100)]
target/m68k: add fscale, fgetman and fgetexp

Using local m68k floatx80_getman(), floatx80_getexp(), floatx80_scale()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-5-laurent@vivier.eu>

6 years agosoftfloat: use floatx80_infinity in softfloat
Laurent Vivier [Sat, 24 Feb 2018 20:18:01 +0000 (21:18 +0100)]
softfloat: use floatx80_infinity in softfloat

Since f3218a8 ("softfloat: add floatx80 constants")
floatx80_infinity is defined but never used.

This patch updates floatx80 functions to use
this definition.

This allows to define a different default Infinity
value on m68k: the m68k FPU defines infinity with
all bits set to zero in the mantissa.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-4-laurent@vivier.eu>

6 years agotarget/m68k: add fmod/frem
Laurent Vivier [Sat, 24 Feb 2018 20:18:00 +0000 (21:18 +0100)]
target/m68k: add fmod/frem

Using a local m68k floatx80_mod()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

The quotient byte of the FPSR is updated with
the result of the operation.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-3-laurent@vivier.eu>

6 years agosoftfloat: export some functions
Laurent Vivier [Sat, 24 Feb 2018 20:17:59 +0000 (21:17 +0100)]
softfloat: export some functions

Move fpu/softfloat-macros.h to include/fpu/

Export floatx80 functions to be used by target floatx80
specific implementations.

Exports:
  propagateFloatx80NaN(), extractFloatx80Frac(),
  extractFloatx80Exp(), extractFloatx80Sign(),
  normalizeFloatx80Subnormal(), packFloatx80(),
  roundAndPackFloatx80(), normalizeRoundAndPackFloatx80()

Also exports packFloat32() that will be used to implement
m68k fsinh, fcos, fsin, ftan operations.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180224201802.911-2-laurent@vivier.eu>

6 years agotarget/m68k: TCGv returned by gen_load() must be freed
Laurent Vivier [Sat, 17 Feb 2018 23:59:20 +0000 (00:59 +0100)]
target/m68k: TCGv returned by gen_load() must be freed

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180217235920.2254-1-laurent@vivier.eu>

6 years agoqapi: Don't create useless directory qapi-generated
Markus Armbruster [Sun, 11 Feb 2018 09:36:07 +0000 (10:36 +0100)]
qapi: Don't create useless directory qapi-generated

We used to generate first test and later QGA QAPI code into
qapi-generated/.  Commit b93b63f574 moved the test code to tests/.
Commit 54c2e50205 moved the QGA code to qga/qapi-generated/.  The
directory has been unused since.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-30-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoFix up dangling references to qmp-commands.* in comment and doc
Markus Armbruster [Sun, 11 Feb 2018 09:36:06 +0000 (10:36 +0100)]
Fix up dangling references to qmp-commands.* in comment and doc

Fix up the reference to qmp-commands.hx in qmp.c.  Missed in commit
5032a16d1d.

Fix up the reference to qmp-commands.txt in
docs/xen-save-devices-state.txt.  Missed in commit 4d8bb958fa.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-29-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Move qapi-schema.json to qapi/, rename generated files
Markus Armbruster [Sun, 11 Feb 2018 09:36:05 +0000 (10:36 +0100)]
qapi: Move qapi-schema.json to qapi/, rename generated files

Move qapi-schema.json to qapi/, so it's next to its modules, and all
files get generated to qapi/, not just the ones generated for modules.

Consistently name the generated files qapi-MODULE.EXT:
qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become
qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch].
This gets rid of the temporary hacks in scripts/qapi/commands.py,
scripts/qapi/events.py, and scripts/qapi/common.py.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-28-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agodocs: Correct outdated information on QAPI
Markus Armbruster [Sun, 11 Feb 2018 09:36:04 +0000 (10:36 +0100)]
docs: Correct outdated information on QAPI

* Fix guidance on error classes

* Point to generated documentation

* Drop plea for documentation, because the QAPI code generator
  enforces it since commit 3313b6124b

* Minor tweaks here and there

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-27-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agodocs/devel/writing-qmp-commands: Update for modular QAPI
Markus Armbruster [Sun, 11 Feb 2018 09:36:03 +0000 (10:36 +0100)]
docs/devel/writing-qmp-commands: Update for modular QAPI

With modular code generation, putting stuff right into
qapi-schema.json is a bad idea.  Update writing-qmp-commands.txt
accordingly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-26-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Empty out qapi-schema.json
Markus Armbruster [Mon, 26 Feb 2018 23:13:27 +0000 (17:13 -0600)]
qapi: Empty out qapi-schema.json

The previous commit improved compile time by including less of the
generated QAPI headers.  This is impossible for stuff defined directly
in qapi-schema.json, because that ends up in headers that that pull in
everything.

Move everything but include directives from qapi-schema.json to new
sub-module qapi/misc.json, then include just the "misc" shard where
possible.

It's possible everywhere, except:

* monitor.c needs qmp-command.h to get qmp_init_marshal()

* monitor.c, ui/vnc.c and the generated qapi-event-FOO.c need
  qapi-event.h to get enum QAPIEvent

Perhaps we'll get rid of those some other day.

Adding a type to qapi/migration.json now recompiles some 120 instead
of 2300 out of 5100 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-25-armbru@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoInclude less of the generated modular QAPI headers
Markus Armbruster [Sun, 11 Feb 2018 09:36:01 +0000 (10:36 +0100)]
Include less of the generated modular QAPI headers

In my "build everything" tree, a change to the types in
qapi-schema.json triggers a recompile of about 4800 out of 5100
objects.

The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h,
qapi-types.h.  Each of these headers still includes all its shards.
Reduce compile time by including just the shards we actually need.

To illustrate the benefits: adding a type to qapi/migration.json now
recompiles some 2300 instead of 4800 objects.  The next commit will
improve it further.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-24-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Generate separate .h, .c for each module
Markus Armbruster [Sun, 11 Feb 2018 09:36:00 +0000 (10:36 +0100)]
qapi: Generate separate .h, .c for each module

Our qapi-schema.json is composed of modules connected by include
directives, but the generated code is monolithic all the same: one
qapi-types.h with all the types, one qapi-visit.h with all the
visitors, and so forth.  These monolithic headers get included all
over the place.  In my "build everything" tree, adding a QAPI type
recompiles about 4800 out of 5100 objects.

We wouldn't write such monolithic headers by hand.  It stands to
reason that we shouldn't generate them, either.

Split up generated qapi-types.h to mirror the schema's modular
structure: one header per module.  Name the main module's header
qapi-types.h, and sub-module D/B.json's header D/qapi-types-B.h.

Mirror the schema's includes in the headers, so that qapi-types.h gets
you everything exactly as before.  If you need less, you can include
one or more of the sub-module headers.  To be exploited shortly.

Split up qapi-types.c, qapi-visit.h, qapi-visit.c, qmp-commands.h,
qmp-commands.c, qapi-event.h, qapi-event.c the same way.
qmp-introspect.h, qmp-introspect.c and qapi.texi remain monolithic.

The split of qmp-commands.c duplicates static helper function
qmp_marshal_output_str() in qapi-commands-char.c and
qapi-commands-misc.c.  This happens when commands returning the same
type occur in multiple modules.  Not worth avoiding.

Since I'm going to rename qapi-event.[ch] to qapi-events.[ch], and
qmp-commands.[ch] to qapi-commands.[ch], name the shards that way
already, to reduce churn.  This requires temporary hacks in
commands.py and events.py.  Similarly, c_name() must temporarily
be taught to munge '/' in common.py.  They'll go away with the rename.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-23-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: declare a dummy variable in each .c file, to shut up OSX
toolchain warnings about empty .o files, including hacking c_name()]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agowatchdog: Consolidate QAPI into single file
Eric Blake [Mon, 26 Feb 2018 22:57:43 +0000 (16:57 -0600)]
watchdog: Consolidate QAPI into single file

Commit f0df84c6 added watchdog-set-action in the main qapi-schema.json,
but it belongs better in qapi/run-state.json alongside the definition
of WatchdogAction.  The command was written prior to commit 0e201d34
creating the latter file, even though it was merged after.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180226225744.26356-1-eblake@redhat.com>

6 years agoqapi/common: Fix guardname() for funny filenames
Markus Armbruster [Sun, 11 Feb 2018 09:35:59 +0000 (10:35 +0100)]
qapi/common: Fix guardname() for funny filenames

guardname() fails to return a valid C identifier for arguments
containing anything but [A-Za-z0-9_.-'].  Fix that.  Don't bother
protecting ticklish identifiers; header guards are all-caps, and no
ticklish identifiers are.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180211093607.27351-22-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi/types qapi/visit: Generate built-in stuff into separate files
Markus Armbruster [Mon, 26 Feb 2018 22:29:21 +0000 (16:29 -0600)]
qapi/types qapi/visit: Generate built-in stuff into separate files

Linking code from multiple separate QAPI schemata into the same
program is possible, but involves some weirdness around built-in
types:

* We generate code for built-in types into .c only with option
  --builtins.  The user is responsible for generating code for exactly
  one QAPI schema per program with --builtins.

* We generate code for built-in types into .h regardless of
  --builtins, but guarded by #ifndef QAPI_VISIT_BUILTIN.  Because all
  copies of this code are exactly the same, including any combination
  of these headers works.

Replace this contraption by something more conventional: generate code
for built-in types into their very own files: qapi-builtin-types.c,
qapi-builtin-visit.c, qapi-builtin-types.h, qapi-builtin-visit.h, but
only with --builtins.  Obey --output-dir, but ignore --prefix for
them.

Make qapi-types.h include qapi-builtin-types.h.  With multiple
schemata you now have multiple qapi-types.[ch], but only one
qapi-builtin-types.[ch].  Same for qapi-visit.[ch] and
qapi-builtin-visit.[ch].

Bonus: if all you need is built-in stuff, you can include a much
smaller header.  To be exploited shortly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-21-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: fix octal constant for python 3]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Make code-generating visitors use QAPIGen more
Markus Armbruster [Mon, 26 Feb 2018 19:50:08 +0000 (13:50 -0600)]
qapi: Make code-generating visitors use QAPIGen more

The use of QAPIGen is rather shallow so far: most of the output
accumulation is not converted.  Take the next step: convert output
accumulation in the code-generating visitor classes.  Helper functions
outside these classes are not converted.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-20-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: rebase to earlier guardstart cleanup]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Rename generated qmp-marshal.c to qmp-commands.c
Markus Armbruster [Sun, 11 Feb 2018 09:35:56 +0000 (10:35 +0100)]
qapi: Rename generated qmp-marshal.c to qmp-commands.c

All generated .c are named like their .h, except for qmp-marshal.c and
qmp-commands.h.  To add to the confusion, tests-qmp-commands.c falsely
matches generated test-qmp-commands.h.

Get rid of this unnecessary complication.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-19-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Record 'include' directives in intermediate representation
Markus Armbruster [Sun, 11 Feb 2018 09:35:55 +0000 (10:35 +0100)]
qapi: Record 'include' directives in intermediate representation

The include directive permits modular QAPI schemata, but the generated
code is monolithic all the same.  To permit generating modular code,
the front end needs to pass more information on inclusions to the back
ends.  The commit before last added the necessary information to the
parse tree.  This commit adds it to the intermediate representation
and its QAPISchemaVisitor.  A later commit will use this to to
generate modular code.

New entity QAPISchemaInclude represents inclusions.  Call new visitor
method visit_include() for it, so visitors can see the sub-modules a
module includes.

Note that unlike other entities, QAPISchemaInclude has no name, and is
therefore not added to entity_dict.

New QAPISchemaEntity attribute @module names the entity's source file.
Call new visitor method visit_module() when it changes during a visit,
so visitors can keep track of the module being visited.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-18-armbru@redhat.com>
[eblake: avoid accidental deletion of self._predefining]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Generate in source order
Markus Armbruster [Sun, 11 Feb 2018 09:35:54 +0000 (10:35 +0100)]
qapi: Generate in source order

The generators' conversion to visitors (merge commit 9e72681d16)
changed the processing order of entities from source order to
alphabetical order.  The next commit needs source order, so change it
back.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-17-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Record 'include' directives in parse tree
Markus Armbruster [Sun, 11 Feb 2018 09:35:53 +0000 (10:35 +0100)]
qapi: Record 'include' directives in parse tree

The parse tree is a list of expressions.  Except include expressions
currently get replaced by the included file's parse tree.

Instead of throwing away the include expression, keep it with the file
name expanded so you don't have to track the including file's
directory to make sense of it.

A future commit will put this include expression to use.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-16-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: fix check of expr after assignment]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Concentrate QAPISchemaParser.exprs updates in .__init__()
Markus Armbruster [Sun, 11 Feb 2018 09:35:52 +0000 (10:35 +0100)]
qapi: Concentrate QAPISchemaParser.exprs updates in .__init__()

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-15-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Lift error reporting from QAPISchema.__init__() to callers
Markus Armbruster [Sun, 11 Feb 2018 09:35:51 +0000 (10:35 +0100)]
qapi: Lift error reporting from QAPISchema.__init__() to callers

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-14-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi/common: Eliminate QAPISchema.exprs
Markus Armbruster [Sun, 11 Feb 2018 09:35:50 +0000 (10:35 +0100)]
qapi/common: Eliminate QAPISchema.exprs

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-13-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Improve include file name reporting in error messages
Markus Armbruster [Sun, 11 Feb 2018 09:35:49 +0000 (10:35 +0100)]
qapi: Improve include file name reporting in error messages

Error messages print absolute file names of included files even if the
user gave a relative one on the command line:

    $ PYTHONPATH=scripts python -B tests/qapi-schema/test-qapi.py tests/qapi-schema/include-cycle.json
    In file included from tests/qapi-schema/include-cycle.json:1:
    In file included from /work/armbru/qemu/tests/qapi-schema/include-cycle-b.json:1:
    /work/armbru/qemu/tests/qapi-schema/include-cycle-c.json:1: Inclusion loop for include-cycle.json

Improve this to

    In file included from tests/qapi-schema/include-cycle.json:1:
    In file included from tests/qapi-schema/include-cycle-b.json:1:
    tests/qapi-schema/include-cycle-c.json:1: Inclusion loop for include-cycle.json

The error message when an include file can't be opened prints the
include directive's file name, which is relative to the including
file.  Change this to print the file name relative to the working
directory.  Visible in tests/qapi-schema/include-no-file.err.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-12-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Touch generated files only when they change
Markus Armbruster [Sun, 11 Feb 2018 09:35:48 +0000 (10:35 +0100)]
qapi: Touch generated files only when they change

A massive number of objects depends on QAPI-generated headers.  In my
"build everything" tree, it's roughly 4800 out of 5100.  This is
particularly annoying when only some of the generated files change,
say for a doc fix.

Improve qapi-gen.py to touch its output files only if they actually
change.  Rebuild time for a QAPI doc fix drops from many minutes to a
few seconds.  Rebuilds get faster for certain code changes, too.  For
instance, adding a simple QMP event now recompiles less than 200
instead of 4800 objects.  But adding a QAPI type is as bad as ever;
we've clearly got more work to do.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180211093607.27351-11-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: fix octal constant for python3]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi-gen: Convert from getopt to argparse
Markus Armbruster [Sun, 11 Feb 2018 09:35:47 +0000 (10:35 +0100)]
qapi-gen: Convert from getopt to argparse

argparse is nicer to use than getopt, and gives us --help almost for
free.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-10-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: Fix --output-dir editing accident]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi-gen: New common driver for code and doc generators
Markus Armbruster [Mon, 26 Feb 2018 19:48:58 +0000 (13:48 -0600)]
qapi-gen: New common driver for code and doc generators

Whenever qapi-schema.json changes, we run six programs eleven times to
update eleven files.  Similar for qga/qapi-schema.json.  This is
silly.  Replace the six programs by a single program that spits out
all eleven files.

The programs become modules in new Python package qapi, along with the
helper library.  This requires moving them to scripts/qapi/.  While
moving them, consistently drop executable mode bits.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-9-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: move change to one-line 'blurb' earlier in series, mention mode
bit change as intentional, update qapi-code-gen.txt to match actual
generated events.c file]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Turn generators into modules
Markus Armbruster [Mon, 26 Feb 2018 19:39:37 +0000 (13:39 -0600)]
qapi: Turn generators into modules

The next commit will introduce a common driver program for all
generators.  The generators need to be modules for that.  qapi2texi.py
already is.  Make the other generators follow suit.

The changes are actually trivial.  Obvious in the diffs once you view
them with whitespace changes ignored.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-8-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: minor tweak to keep 'blurb' one line]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Reduce use of global variables in generators some
Markus Armbruster [Sun, 11 Feb 2018 09:35:44 +0000 (10:35 +0100)]
qapi: Reduce use of global variables in generators some

In preparation of the next commit, which will turn the generators into
modules.  These global variables will become local to main() then.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-7-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: New classes QAPIGenC, QAPIGenH, QAPIGenDoc
Markus Armbruster [Mon, 26 Feb 2018 19:19:40 +0000 (13:19 -0600)]
qapi: New classes QAPIGenC, QAPIGenH, QAPIGenDoc

These classes encapsulate accumulating and writing output.

Convert C code generation to QAPIGenC and QAPIGenH.  The conversion is
rather shallow: most of the output accumulation is not converted.
Left for later.

The indentation machinery uses a single global variable indent_level,
even though we generally interleave creation of a .c and its .h.  It
should become instance variable of QAPIGenC.  Also left for later.

Documentation generation isn't converted, and QAPIGenDoc isn't used.
This will change shortly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180211093607.27351-6-armbru@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: fix nits spotted by Michael]
Signed-off-by: Eric Blake <eblake@redhat.com>
6 years agoqapi: Rename variable holding the QAPISchemaGenFOOVisitor
Markus Armbruster [Sun, 11 Feb 2018 09:35:42 +0000 (10:35 +0100)]
qapi: Rename variable holding the QAPISchemaGenFOOVisitor

Rename the variable holding the QAPISchemaGenFOOVisitor from gen to
vis, to avoid confusion in the next commit.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-5-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>