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Alex Williamson [Mon, 25 Jun 2012 15:40:39 +0000 (09:40 -0600)]
kvm: Don't abort on kvm_irqchip_add_msi_route()
Anyone using these functions has to be prepared that irqchip
support may not be present. It shouldn't be up to the core
code to determine whether this is a fatal error. Currently
code written as:
virq = kvm_irqchip_add_msi_route(...)
if (virq < 0) {
<slow path>
} else {
<fast path>
}
works on x86 with and without kvm irqchip enabled, works
without kvm support compiled in, but aborts() on !x86 with
kvm support.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Blue Swirl [Sun, 24 Jun 2012 20:15:05 +0000 (20:15 +0000)]
bsd-user: fix build
Link in oslib objects also for BSD user, but avoid using the version of
qemu_vmalloc() defined in oslib-posix.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Thu, 21 Jun 2012 19:19:15 +0000 (19:19 +0000)]
x86: rename op_helper.c to seg_helper.c
Rename what is remaining of op_helper.c to seg_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 16:39:13 +0000 (16:39 +0000)]
x86: split off memory access helpers
Move memory access helpers to mem_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 18:20:34 +0000 (18:20 +0000)]
x86: split off misc helpers
Move various functions to misc_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 17:48:05 +0000 (17:48 +0000)]
x86: split off SMM helpers
Move SMM helpers to smm_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 14:42:35 +0000 (14:42 +0000)]
x86: split off SVM helpers
Move SVM helpers to svm_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 13:12:26 +0000 (13:12 +0000)]
x86: split off integer helpers
Move integer and bit field helpers to int_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 12:21:21 +0000 (12:21 +0000)]
x86: split off condition code helpers
Move condition code helpers to cc_helper.c.
Move the shared inline functions lshift(), cpu_load_eflags() and
cpu_cc_compute_all() to cpu.h.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 15:01:21 +0000 (15:01 +0000)]
x86: prepare eflags helpers for general use
Adjust function names and add an explicit CPUX86State
parameter instead of relying on AREG0.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 12 May 2012 20:39:26 +0000 (20:39 +0000)]
x86: split condition code and shift templates
Move shift templates from helper_template.h to
shift_helper_template.h and the condition code helpers
to cc_helper_template.h.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 12:27:33 +0000 (12:27 +0000)]
x86: fix coding style in helper_template.h
Fix coding style in helper_template.h before next commit.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 13 May 2012 18:53:07 +0000 (18:53 +0000)]
x86: improve SSE table type safety
SSE function tables could easily be corrupted because of use
of void pointers.
Introduce function pointer types and helper variables in order
to improve type safety.
Split sse_op_table3 according to types used.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 28 Apr 2012 20:21:41 +0000 (20:21 +0000)]
x86: split off FPU helpers
Move FPU and MMX/SSE helpers to fpu_helpers.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 08:54:44 +0000 (08:54 +0000)]
x86: fix coding style in ops_sse.h
Fix coding style in ops_sse.h before next commit.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 29 Apr 2012 09:07:22 +0000 (09:07 +0000)]
x86: avoid an extern declaration
After the previous patch, we can use the proper
declaration in a common header file.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 28 Apr 2012 19:53:52 +0000 (19:53 +0000)]
x86: split off exception handlers
Move exception handlers from op_helper.c to excp_helper.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 28 Apr 2012 19:35:10 +0000 (19:35 +0000)]
x86: avoid AREG0 for exceptions
Add an explicit CPUX86State parameter instead of relying on AREG0.
Merge raise_exception_env() to raise_exception(), likewise with
raise_exception_err_env() and raise_exception_err().
Introduce cpu_svm_check_intercept_param() and cpu_vmexit()
as wrappers.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sat, 28 Apr 2012 15:33:48 +0000 (15:33 +0000)]
x86: prepare op_helper.c for splitting
Fix coding style and a few typos.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Benjamin Herrenschmidt [Wed, 27 Jun 2012 04:50:47 +0000 (14:50 +1000)]
Add a memory barrier to DMA functions
The emulated devices can run simultaneously with the guest, so
we need to be careful with ordering of load and stores done by
them to the guest system memory, which need to be observed in
the right order by the guest operating system.
This adds a barrier call to the basic DMA read/write ops which
is currently implemented as a smp_mb(), but could be later
improved for more fine grained control of barriers.
Additionally, a _relaxed() variant of the accessors is provided
to easily convert devices who would be performance sensitive
and negatively impacted by the change.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:46 +0000 (14:50 +1000)]
pseries: Implement IOMMU and DMA for PAPR PCI devices
Currently the pseries machine emulation does not support DMA for emulated
PCI devices, because the PAPR spec always requires a (guest visible,
paravirtualized) IOMMU which was not implemented. Now that we have
infrastructure for IOMMU emulation, we can correct this and allow PCI DMA
for pseries.
With the existing PAPR IOMMU code used for VIO devices, this is almost
trivial. We use a single DMAContext for each (virtual) PCI host bridge,
which is the usual configuration on real PAPR machines (which often have
_many_ PCI host bridges).
Cc: Alex Graf <agraf@suse.de>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:45 +0000 (14:50 +1000)]
iommu: Allow PCI to use IOMMU infrastructure
This patch adds some hooks to let PCI devices and busses use the new IOMMU
infrastructure. When IOMMU support is enabled, each PCI device now
contains a DMAContext * which is used by the pci_dma_*() wrapper functions.
By default, the contexts are initialized to NULL, assuming no IOMMU.
However the platform or host bridge code which sets up the PCI bus can use
pci_setup_iommu() to set a function which will determine the correct
DMAContext for a given PCI device.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:44 +0000 (14:50 +1000)]
pseries: Convert sPAPR TCEs to use generic IOMMU infrastructure
The pseries platform already contains an IOMMU implementation, since it is
essential for the platform's paravirtualized VIO devices. This IOMMU
support is currently built into the implementation of the VIO "bus" and
the various VIO devices.
This patch converts this code to make use of the new common IOMMU
infrastructure.
We don't yet handle synchronization of map/unmap callbacks vs. invalidations,
this will require some complex interaction with the kernel and is not a
major concern at this stage.
Cc: Alex Graf <agraf@suse.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:43 +0000 (14:50 +1000)]
iommu: Introduce IOMMU emulation infrastructure
This patch adds the basic infrastructure necessary to emulate an IOMMU
visible to the guest. The DMAContext structure is extended with
information and a callback describing the translation, and the various
DMA functions used by devices will now perform IOMMU translation using
this callback.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:42 +0000 (14:50 +1000)]
usb: Convert usb_packet_{map, unmap} to universal DMA helpers
The USB UHCI and EHCI drivers were converted some time ago to use the
pci_dma_*() helper functions. However, this conversion was not complete
because in some places both these drivers do DMA via the usb_packet_map()
function in usb-libhw.c. That function directly used
cpu_physical_memory_map().
Now that the sglist code uses DMA wrappers properly, we can convert the
functions in usb-libhw.c, thus conpleting the conversion of UHCI and EHCI
to use the DMA wrappers.
Note that usb_packet_map() invokes dma_memory_map() with a NULL invalidate
callback function. When IOMMU support is added, this will mean that
usb_packet_map() and the corresponding usb_packet_unmap() must be called in
close proximity without dropping the qemu device lock - otherwise the guest
might invalidate IOMMU mappings while they are still in use by the device
code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:41 +0000 (14:50 +1000)]
ide/ahci: Use universal DMA helper functions
The AHCI device can provide both PCI and SysBus AHCI device
emulations. For this reason, it wasn't previously converted to use
the pci_dma_*() helper functions. Now that we have universal DMA
helper functions, this converts AHCI to use them.
The DMAContext is obtained from pci_dma_context() in the PCI case and
set to NULL in the SysBus case (i.e. we assume for now that a SysBus
AHCI has no IOMMU translation).
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:40 +0000 (14:50 +1000)]
iommu: Make sglists and dma_bdrv helpers use new universal DMA helpers
dma-helpers.c contains a number of helper functions for doing
scatter/gather DMA, and various block device related DMA. Currently,
these directly access guest memory using cpu_physical_memory_*(),
assuming no IOMMU translation.
This patch updates this code to use the new universal DMA helper
functions. qemu_sglist_init() now takes a DMAContext * to describe
the DMA address space in which the scatter/gather will take place.
We minimally update the callers qemu_sglist_init() to pass NULL
(i.e. no translation, same as current behaviour). Some of those
callers should pass something else in some cases to allow proper IOMMU
translation in future, but that will be fixed in later patches.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:39 +0000 (14:50 +1000)]
usb-ohci: Use universal DMA helper functions
The OHCI device emulation can provide both PCI and SysBus OHCI
implementations. Because of this, it was not previously converted to
use the PCI DMA helper functions.
This patch converts it to use the new universal DMA helper functions.
In the PCI case, it obtains its DMAContext from pci_dma_context(), in
the SysBus case, it uses NULL - i.e. assumes for now that there will
be no IOMMU translation for a SysBus OHCI.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:38 +0000 (14:50 +1000)]
iommu: Add universal DMA helper functions
Not that long ago, every device implementation using DMA directly
accessed guest memory using cpu_physical_memory_*(). This meant that
adding support for a guest visible IOMMU would require changing every
one of these devices to go through IOMMU translation.
Shortly before qemu 1.0, I made a start on fixing this by providing
helper functions for PCI DMA. These are currently just stubs which
call the direct access functions, but mean that an IOMMU can be
implemented in one place, rather than for every PCI device.
Clearly, this doesn't help for non PCI devices, which could also be
IOMMU translated on some platforms. It is also problematic for the
devices which have both PCI and non-PCI version (e.g. OHCI, AHCI) - we
cannot use the the pci_dma_*() functions, because they assume the
presence of a PCIDevice, but we don't want to have to check between
pci_dma_*() and cpu_physical_memory_*() every time we do a DMA in the
device code.
This patch makes the first step on addressing both these problems, by
introducing new (stub) dma helper functions which can be used for any
DMA capable device.
These dma functions take a DMAContext *, a new (currently empty)
variable describing the DMA address space in which the operation is to
take place. NULL indicates untranslated DMA directly into guest
physical address space. The intention is that in future non-NULL
values will given information about any necessary IOMMU translation.
DMA using devices must obtain a DMAContext (or, potentially, contexts)
from their bus or platform. For now this patch just converts the PCI
wrappers to be implemented in terms of the universal wrappers,
converting other drivers can take place over time.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Wed, 27 Jun 2012 04:50:37 +0000 (14:50 +1000)]
Better support for dma_addr_t variables
A while back, we introduced the dma_addr_t type, which is supposed to
be used for bus visible memory addresses. At present, this is an
alias for target_phys_addr_t, but this will change when we eventually
add support for guest visible IOMMUs.
There are some instances of target_phys_addr_t in the code now which
should really be dma_addr_t, but can't be trivially converted due to
missing features which this patch corrects.
* We add DMA_ADDR_BITS analagous to TARGET_PHYS_ADDR_BITS. This is
important where we need to make a compile-time (#if) based on the
size of dma_addr_t.
* We add a new helper macro to create device properties which take a
dma_addr_t, currently an alias to DEFINE_PROP_TADDR().
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jason Wang [Thu, 17 May 2012 05:25:43 +0000 (13:25 +0800)]
rtl8139: validate rx ring before receiving packets
Commit
ff71f2e8cacefae99179993204172bc65e4303df prevent the possible
crash during initialization of linux driver by checking the operating
mode.This seems too strict as:
- the real card could still work in mode other than normal
- some buggy driver who does not set correct opmode after eeprom
access
So, considering rx ring address were reset to zero (which could be
safely trated as an address not intened to DMA to), in order to
both letting old guest work and preventing the unexpected DMA to
guest, we can forbid packet receiving when rx ring address is zero.
Tested-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Daniel P. Berrange [Wed, 20 Jun 2012 13:24:28 +0000 (14:24 +0100)]
Remove support for non-threaded VNC server
QEMU now has a fundamental requirement for pthreads, so there
is no compelling reason to retain support for the non-threaded
VNC server. Remove the --{enable,disable}-vnc-thread configure
arguments, and all CONFIG_VNC_THREAD conditionals
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Andreas Färber [Thu, 14 Jun 2012 15:14:33 +0000 (15:14 +0000)]
configure: Assure existence of linux-headers/ build directory
Commit
ec5b06d (configure: ensure directory exists when creating symlinks)
moved the creation of directories into the symlink() function but forgot
the case where no symlink is created.
This leads to build errors on arm Linux due to -I../linux-headers.
Unbreak the build on arm Linux by reverting part of that commit.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 20 Jun 2012 17:02:33 +0000 (18:02 +0100)]
Makefile.target: Update clean command to clean hw/ directory
Now we create object files in a hierarchy under hw/, so the
'clean' target must also be updated to delete those object files.
Rather than using a manual list of subdirectories which will
easily drift out of date, we just delete all .o and .d files
in the target directory hierarchy.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Wed, 27 Jun 2012 13:20:43 +0000 (08:20 -0500)]
qtest: fix infinite loop when QEMU aborts abruptly
From Markus:
Makes "make check" hang:
QTEST_QEMU_BINARY=x86_64-softmmu/qemu-system-x86_64 gtester -k --verbose -m=quick tests/crash-test tests/rtc-test
TEST: tests/crash-test... (pid=972)
qemu-system-x86_64: Device needs media, but drive is empty
[Nothing happens, wait a while, then hit ^C]
make: *** [check-qtest-x86_64] Interrupt
This was due to the fact that we weren't checked for errors when
reading from the QMP socket. This patch adds appropriate error
checking.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Wed, 27 Jun 2012 12:37:54 +0000 (07:37 -0500)]
qdev: fix use-after-free in the error path of qdev_init_nofail
From Markus:
Before:
$ qemu-system-x86_64 -display none -drive if=ide
qemu-system-x86_64: Device needs media, but drive is empty
qemu-system-x86_64: Initialization of device ide-hd failed
[Exit 1 ]
After:
$ qemu-system-x86_64 -display none -drive if=ide
qemu-system-x86_64: Device needs media, but drive is empty
Segmentation fault (core dumped)
[Exit 139 (SIGSEGV)]
This error always existed as qdev_init() frees the object. But QOM
goes a bit further and purposefully sets the class pointer to NULL to
help find use-after-free. It worked :-)
Cc: Andreas Faerber <afaerber@suse.de>
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter A. G. Crosthwaite [Tue, 26 Jun 2012 04:29:42 +0000 (14:29 +1000)]
MAINTAINERS: Added device tree
Agreed between myself and Alex:
http://lists.nongnu.org/archive/html/qemu-devel/2012-06/msg03561.html
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Peter A. G. Crosthwaite [Tue, 26 Jun 2012 04:29:41 +0000 (14:29 +1000)]
MAINTAINERS: Added Xilinx EDK devices
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Peter A. G. Crosthwaite [Tue, 26 Jun 2012 04:29:40 +0000 (14:29 +1000)]
MAINTAINERS: Add Petalogix ml605 machine model
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Anthony Liguori [Tue, 26 Jun 2012 20:09:47 +0000 (15:09 -0500)]
Merge remote-tracking branch 'stefanha/trivial-patches' into staging
* stefanha/trivial-patches:
tci: Support INDEX_op_bswap64_i64
target-i386: Use QEMU instead of Qemu
Makefile.hw: avoid overly large 'make clean' rm command
configure: Fix typo
arm_gic: Send dbg msgs to stderr not stdout
checkpatch: Add QEMU specific rule
qemu-config: Use QEMU instead of Qemu
libqtest: Fix socket_accept() to pass address_len
Makefile.user: Define CONFIG_USER_ONLY for libuser/
Makefile: Remove macro qapi-dir
Makefile: Remove BUILD_DIR from qapi-dir
Install 'bepo' keymap already included in Qemu source
Anthony Liguori [Tue, 26 Jun 2012 20:07:03 +0000 (15:07 -0500)]
Merge remote-tracking branch 'spice/spice.v58' into staging
* spice/spice.v58:
vga: raise default vgamem size
add pc-1.2
qxl: add vgamem_size_mb and vgamem_size
vga: make vram size configurable
vga: raise xres+yres limits
qxl: reset current_async on qxl_soft_reset
hw/qxl: ignore guest from guestbug until reset
qxl: stop dirty loging when not in vga mode
hw/qxl: s/qxl_guest_bug/qxl_set_guest_bug/
ui/spice-display.c: add missing initialization for valgrind
Anthony Liguori [Tue, 26 Jun 2012 20:06:09 +0000 (15:06 -0500)]
Merge remote-tracking branch 'mdroth/qga-pull-6-21-12' into staging
* mdroth/qga-pull-6-21-12:
qemu-ga: add guest-fstrim command
qemu-ga: make names more generic for mount list functions
Anthony Liguori [Tue, 26 Jun 2012 20:05:45 +0000 (15:05 -0500)]
Merge remote-tracking branch 'sstabellini/compile-xs' into staging
* sstabellini/compile-xs:
xenstore: Use <xenstore.h>
xen: Reorganize includes of Xen headers.
Anthony Liguori [Tue, 26 Jun 2012 20:05:33 +0000 (15:05 -0500)]
Merge remote-tracking branch 'sstabellini/xen-pt' into staging
* sstabellini/xen-pt:
Introduce Xen PCI Passthrough, MSI
Introduce apic-msidef.h
Introduce Xen PCI Passthrough, PCI config space helpers
Introduce Xen PCI Passthrough, qdevice
qdev-properties: Introduce pci-host-devaddr.
pci.c: Add opaque argument to pci_for_each_device.
Introduce XenHostPCIDevice to access a pci device on the host.
configure: Introduce --enable-xen-pci-passthrough.
pci_ids: Add INTEL_82599_SFP_VF id.
Anthony Liguori [Tue, 26 Jun 2012 20:01:47 +0000 (15:01 -0500)]
Merge remote-tracking branch 'kraxel/usb.54' into staging
* kraxel/usb.54:
uhci: fix uhci_async_cancel_all
usb-host: live migration support
usb-host: attach only to running guest
ehci: tracing improvements
usb: restore USBDevice->attached on vmload
ehci: add live migration support
Stefan Weil [Sun, 24 Jun 2012 04:18:41 +0000 (04:18 +0000)]
target-ppc: Fix 2nd parameter for tcg_gen_shri_tl
This fixes a compiler error when QEMU was configured with --enable-debug.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Stefan Weil [Sun, 24 Jun 2012 04:04:17 +0000 (04:04 +0000)]
target-ppc: Fix build with --enable-debug
The order of the arguments was wrong (copy+paste error).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Scott Wood [Tue, 19 Jun 2012 02:31:36 +0000 (21:31 -0500)]
tci: don't write zero for reloc in tci_out_label
If tci_out_label is called in the context of tcg_gen_code_search_pc, we
could be overwriting an already patched relocation with zero -- and not
repatch it because the set_label is past search_pc, causing a QEMU crash
when it tries to branch to a zero label.
Not writing anything to the relocation area seems to be in line with what
other backends do from the couple I looked at (x86, ppc).
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Stefan Weil [Thu, 21 Jun 2012 20:18:39 +0000 (22:18 +0200)]
make: Fix dependencies for fpu/*.c and tcg/*.c
Commit
dcff25f2cd8c11a9368cc2369aeb0319c32d9e26 removed too many *.d
files. The directories fpu/ and tcg/ still don't use the recursive
subdir rules.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Stefan Weil [Sat, 23 Jun 2012 18:41:10 +0000 (20:41 +0200)]
qemu-log: Add GCC format attribute
The new inline function qemu_log_vprintf should use this attribute.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Blue Swirl [Sun, 24 Jun 2012 10:48:56 +0000 (10:48 +0000)]
Merge branch 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf
* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf: (72 commits)
PPC: BookE206: Bump MAS2 to 64bit
PPC: BookE: Support 32 and 64 bit wide MAS2
PPC: Extract SPR dump generation into its own function
PPC: Add e5500 CPU target
PPC: BookE: Make ivpr selectable by CPU type
PPC: BookE: Implement EPR SPR
PPC: Add support for MSR_CM
PPC: Add some booke SPR defines
uImage: increase the gzip load size
PPC: e500: allow users to set the /compatible property via -machine
dt: make setprop argument static
PPC: e500: Refactor serial dt generation
dt: Add global option to set phandle start offset
PPC: e500: Extend address/size of / to 64bit
PPC: e500: Define addresses as always 64bit
PPC: e500: Use new SOC dt format
PPC: e500: Use new MPIC dt format
Revert "dt: temporarily disable subtree creation failure check"
PPC: e500: enable manual loading of dtb blob
PPC: e500: dt: use target_phys_addr_t for ramsize
...
Blue Swirl [Sun, 24 Jun 2012 10:48:01 +0000 (10:48 +0000)]
Merge branch 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: (33 commits)
target-arm: Remove ARM_CPUID_* macros
target-arm: Remove remaining old cp15 infrastructure
target-arm: Move block cache ops to new cp15 framework
target-arm: Remove c0_cachetype CPUARMState field
target-arm: Convert final ID registers
target-arm: Convert MPIDR
target-arm: Convert cp15 cache ID registers
target-arm: Convert cp15 crn=0 crm={1,2} feature registers
target-arm: Convert cp15 crn=1 registers
target-arm: Convert cp15 crn=9 registers
target-arm: Convert cp15 crn=6 registers
target-arm: convert cp15 crn=7 registers
target-arm: Convert cp15 VA-PA translation registers
target-arm: Convert cp15 MMU TLB control
target-arm: Convert cp15 crn=15 registers
target-arm: Convert cp15 crn=10 registers
target-arm: Convert cp15 crn=13 registers
target-arm: Convert cp15 crn=2 registers
target-arm: Convert MMU fault status cp15 registers
target-arm: Convert cp15 c3 register
...
Blue Swirl [Sun, 24 Jun 2012 10:45:55 +0000 (10:45 +0000)]
Merge branch 's390-for-upstream' of git://repo.or.cz/qemu/agraf
* 's390-for-upstream' of git://repo.or.cz/qemu/agraf:
s390: stop target cpu on sigp initial reset
s390: make kvm_stat work on s390
kvm: Update kernel headers
s390x: fix s390 virtio aliases
Blue Swirl [Sun, 24 Jun 2012 07:09:30 +0000 (07:09 +0000)]
Merge branch 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm:
arm_boot: Conditionalised DTB command line update
cadence_ttc: changed master clock frequency
cadence_gem: avoid stack-writing buffer-overrun
hw/a9mpcore: Fix compilation failure if physaddrs are 64 bit
hw/omap.h: Drop broken MEM_VERBOSE tracing
hw/armv7m_nvic: Make the NVIC a freestanding class
hw/arm_gic: Move CPU interface memory region setup into arm_gic_init
hw/arm_gic.c: Make NVIC interrupt numbering a runtime setting
hw/arm_gic: Make CPU target registers RAZ/WI on uniprocessor
hw/arm_gic: Add qdev property for GIC revision
hw/armv7m_nvic: Use MemoryRegions for NVIC specific registers
hw/arm_gic: Move NVIC specific reset to armv7m_nvic_reset
hw/arm_gic: Remove the special casing of NCPU for the NVIC
hw/arm_gic: Remove NVIC ifdefs from gic_state struct
arm_boot: Fix typos in comment
ARM: Exynos4210 IRQ: Introduce new IRQ gate functionality.
Alexander Graf [Thu, 21 Jun 2012 11:34:20 +0000 (13:34 +0200)]
PPC: BookE206: Bump MAS2 to 64bit
On 64bit capable systems, MAS2 can actually hold a 64bit virtual page
address. So increase the mask for its EPN.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 21 Jun 2012 12:01:06 +0000 (14:01 +0200)]
PPC: BookE: Support 32 and 64 bit wide MAS2
The MAS registers on BookE are all 32 bit wide, except for MAS2, which
can hold up to 64 bit on 64 bit capable CPUs. Reflect this in the SPR
setting code, so that the guest can never write invalid values in them.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 21 Jun 2012 11:39:48 +0000 (13:39 +0200)]
PPC: Extract SPR dump generation into its own function
This patch moves the debug #ifdef'ed SPR trace generation into its
own function, so we can call it from multiple places.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 19:55:55 +0000 (21:55 +0200)]
PPC: Add e5500 CPU target
This patch adds e5500's CPU initialization to the TCG CPU initialization
code.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 21 Jun 2012 13:17:59 +0000 (15:17 +0200)]
PPC: BookE: Make ivpr selectable by CPU type
IVPR can either hold 32 or 64 bit addresses, depending on the CPU type. Let
the CPU initialization function pass in its mask itself, so we can easily
extend it.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 19:27:02 +0000 (21:27 +0200)]
PPC: BookE: Implement EPR SPR
On the e500 series, accessing SPR_EPR magically turns into an access at
that CPU's IACK register on the MPIC. Implement that logic to get kernels
that make use of that feature work.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 19:20:29 +0000 (21:20 +0200)]
PPC: Add support for MSR_CM
The BookE variant of MSR_SF is MSR_CM. Implement everything it takes in TCG to
support running 64bit code with MSR_CM set.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 19:19:09 +0000 (21:19 +0200)]
PPC: Add some booke SPR defines
The number of SPRs avaiable in different PowerPC chip is still increasing. Add
definitions for the MAS7_MAS3 SPR and all currently known bits in EPCR.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 18:58:27 +0000 (20:58 +0200)]
uImage: increase the gzip load size
Recent u-boot has different defines for its gzip extract buffer, but the
common ground seems to be 64MB. So let's bump it up to that, enabling me
to load my test image again ;).
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 18:46:22 +0000 (20:46 +0200)]
PPC: e500: allow users to set the /compatible property via -machine
Device trees usually have a node /compatible, which indicate which machine
type we're looking at. For quick prototyping, it can be very useful to change
the contents of that node via the command line.
Thus, introduce a new option to -machine called dt_compatible, which when
set changes the /compatible contents to its value.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Wed, 20 Jun 2012 18:39:59 +0000 (20:39 +0200)]
dt: make setprop argument static
Whatever we pass in to qemu_devtree_setprop to put into the device tree
will not get modified by that function, so it can easily be declared const.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Tue, 5 Jun 2012 23:19:40 +0000 (01:19 +0200)]
PPC: e500: Refactor serial dt generation
When generating serial port device tree nodes, we duplicate quite a bit
of code, because there are 2 of them in the mpc8544ds board we emulate.
Shove the generating code into a function, so we duplicate less code.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2012 23:01:23 +0000 (01:01 +0200)]
dt: Add global option to set phandle start offset
If anyone outside of QEMU wants to mess with a QEMU generated device tree,
he needs to know which range phandles are valid in. So let's expose a
machine option that an external program can use to set the start allocate
id for phandles in QEMU.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2012 22:25:06 +0000 (00:25 +0200)]
PPC: e500: Extend address/size of / to 64bit
We want to be able to support >= 4GB of RAM. To do so, we need to be able
to tell the guest OS how much RAM it has.
However, that information today is capped to 32bit. So let's extend the
offset and size fields to 64bit, so we can fit in big addresses and even
one day - if we wish to do so - map devices above 32bit.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2012 22:30:36 +0000 (00:30 +0200)]
PPC: e500: Define addresses as always 64bit
Every time we use an address constant, it needs to potentially fit into
a 64bit physical address space. So let's define things accordingly.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2012 22:20:20 +0000 (00:20 +0200)]
PPC: e500: Use new SOC dt format
Due to popular demand, let's clean up the soc node a bit and use
more recent dt notions.
Requested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 5 Jun 2012 22:14:34 +0000 (00:14 +0200)]
PPC: e500: Use new MPIC dt format
Due to popular demand, we're updating the way we generate the MPIC
node and interrupt lines based on what the current state of art is.
Requested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 23:45:01 +0000 (01:45 +0200)]
Revert "dt: temporarily disable subtree creation failure check"
This reverts commit "dt: temporarily disable subtree creation
failure check" which was meant as a temporary solution to keep
external and dynamic device tree construction intact.
Now that we switched to fully dynamic dt construction, it's no
longer necessary.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Tue, 22 May 2012 12:28:50 +0000 (14:28 +0200)]
PPC: e500: enable manual loading of dtb blob
We want to be able to override the automatically created device tree
by using the -dtb option. Implement this for the mpc8544ds machine.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Fri, 18 May 2012 00:14:46 +0000 (02:14 +0200)]
PPC: e500: dt: use target_phys_addr_t for ramsize
We're passing the ram size as uint32_t, capping it to 32 bits atm.
Change to target_phys_addr_t (uint64_t) to make sure we have all
the bits.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 23:56:46 +0000 (01:56 +0200)]
PPC: e500: dt: use 64bit cell helper
We have a nice 64bit helper to ease the device tree generation and
make the code more readable when creating 64bit 2-cell parameters.
Use it when generating the device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 22:11:33 +0000 (00:11 +0200)]
dt: Add -machine dumpdtb option to dump the current dtb
Now that we are dynamically creating the dtb, it's really useful to
be able to dump the created blob for debugging.
This patch implements a -machine dumpdtb=<file> option for e500 that
dumps the dtb exactly in the form the guest would get it to disk. It
can then be analyzed by dtc to get information about the guest
configuration.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 13:50:14 +0000 (15:50 +0200)]
PPC: e500: dt: start with empty device tree
Now that all of the device tree bits are generated during runtime, we
can get rid of the device tree blob and instead start from scratch with
an empty device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 13:34:34 +0000 (15:34 +0200)]
PPC: e500: dt: create pci node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:52:46 +0000 (14:52 +0200)]
PPC: e500: dt: create global-utils node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:51:51 +0000 (14:51 +0200)]
PPC: e500: dt: create mpic node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:51:34 +0000 (14:51 +0200)]
PPC: e500: dt: create serial nodes dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:51:07 +0000 (14:51 +0200)]
PPC: e500: dt: create /soc8544 node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:49:20 +0000 (14:49 +0200)]
PPC: e500: dt: create /chosen node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 10:20:50 +0000 (12:20 +0200)]
PPC: e500: dt: create / node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 09:50:05 +0000 (11:50 +0200)]
PPC: e500: dt: create /hypervisor node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 09:48:16 +0000 (11:48 +0200)]
PPC: e500: dt: create /cpus node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 09:34:50 +0000 (11:34 +0200)]
PPC: e500: dt: create memory node dynamically
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 10:23:41 +0000 (12:23 +0200)]
PPC: e500: require libfdt
Now that we're moving all of the device tree generation from an external
pre-execution generated blob to runtime generation using libfdt, we absolutely
must have libfdt around.
This requirement was there before already, as the only way to not require libfdt
with e500 was to not use -kernel, which was the only way to boot the mpc8544ds
machine. This patch only manifests said requirement in the build system.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 23:53:01 +0000 (01:53 +0200)]
dt: add helper for 64bit cell adds
Some times in the device tree, we find an array of 2 u32 cells that
really are a single u64 value. This patch adds a helper to make the
creation of these easy.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Thu, 17 May 2012 14:58:55 +0000 (16:58 +0200)]
dt: add helper for phandle allocation
Phandle references work by having 2 pieces:
- a "phandle" 1-cell property in the device tree node
- a reference to the same value in a property we want to point
to the other node
To generate the 1-cell property, we need an allocation mechanism that
gives us a unique number space. This patch adds an allocator for these
properties.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 13:33:54 +0000 (15:33 +0200)]
dt: add helper for empty dt creation
We want to get rid of the concept of loading an external device tree and instead
generate our own. However, to do this we need to also create a device tree
template programatically.
This patch adds a helper to create an empty device tree in memory.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Thu, 17 May 2012 13:23:39 +0000 (15:23 +0200)]
dt: add helper for phandle enumeration
This patch adds a helper to search for a node's phandle by its path. This
is especially useful when the phandle is part of an array, not just a single
cell in which case qemu_devtree_setprop_phandle would be the easy choice.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Thu, 17 May 2012 12:12:57 +0000 (14:12 +0200)]
dt: temporarily disable subtree creation failure check
Usually we want to know when creating a subtree fails. However, while
introducing this patch set we have to modify the device tree and some
times have the code to create a subtree in both the binary tree and
the dynamically created tree.
So ignore failures about this for now and enable them once we got rid
of the binary device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
Alexander Graf [Thu, 17 May 2012 12:11:52 +0000 (14:11 +0200)]
dt: add helper for phandle references
Phandles are the fancy device tree name for "pointer to another node".
To create a phandle property, we most likely want to reference to the
node we're pointing to by its path. So create a helper that allows
us to do so.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Thu, 17 May 2012 10:47:57 +0000 (12:47 +0200)]
dt: add helpers for multi-cell adds
We have device tree helpers that allow us to create single cell (u32)
wide properties. However, when creating properties that contain an array of
cells, we need to jump through hoops, manually passing in an array with
converted endianness.
To ease the pain of this, create a generic macro helper that allows us
to pass the cells as arguments.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Alexander Graf [Thu, 17 May 2012 09:40:42 +0000 (11:40 +0200)]
dt: allow add_subnode to create root subnodes
Our subnode creation helper can't handle creation of root subnodes,
like "/memory". Fix this by allowing the parent node to be an empty
string, indicating the root node.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
Kevin Wolf [Tue, 19 Jun 2012 22:02:51 +0000 (22:02 +0000)]
raw-posix: Fix build without is_allocated support
Move the declaration of s into the #ifdef sections that actually make
use of it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Benjamin Herrenschmidt [Mon, 18 Jun 2012 20:21:37 +0000 (20:21 +0000)]
spapr: Add "memop" hypercall
This adds a qemu-specific hypervisor call to the pseries machine
which allows to do what amounts to memmove, memcpy and xor over
regions of physical memory such as the framebuffer.
This is the simplest way to get usable framebuffer speed from
SLOF since the framebuffer isn't mapped in the VRMA and so would
otherwise require an hcall per 8 bytes access.
The performance is still not great but usable, and can be improved
with a more complex implementation of the hcall itself if needed.
This also adds some documentation for the qemu-specific hypercalls
that we add to PAPR along with a new qemu,hypertas-functions property
that mirrors ibm,hypertas-functions and provides some discoverability
for the new calls.
Note: I chose note to advertise H_RTAS to the guest via that mechanism.
This is done on purpose, the guest uses the normal RTAS interfaces
provided by qemu (including SLOF) which internally calls H_RTAS.
We might in the future implement part (or even all) of RTAS inside the
guest like IBM's firmware does and replace H_RTAS with some finer grained
set of private hypercalls.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Benjamin Herrenschmidt [Mon, 18 Jun 2012 20:02:38 +0000 (20:02 +0000)]
spapr_vscsi: Error handling fixes
We were incorrectly g_free'ing an object that isn't allocated
in one error path and failed to release it completely in another
This fixes qemu crashes with some cases of IO errors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Benjamin Herrenschmidt [Mon, 18 Jun 2012 19:56:30 +0000 (19:56 +0000)]
pseries: Correctly create ibm,segment-page-sizes property
The core tcg/kvm code for ppc64 now has at least the outline
capability to support pagesizes beyond the standard 4k and 16MB. The
CPUState is initialized with information advertising the available
pagesizes and their correct encodings, and under the right KVM setup
this will be populated with page sizes beyond the standard.
Obviously guests can't use the extra page sizes unless they know
they're present. For the pseries machine, at least, there is a
defined method for conveying exactly this information, the
"ibm-segment-page-sizes" property in the guest device tree.
This patch generates this property using the supported page size
information that's already in the CPUState.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>