This commit was generated mechanically by coccinelle from the following
semantic patch:
@@
expression val;
@@
- (ffs(val) - 1)
+ ctz32(val)
The call sites have been audited to ensure the ffs(0) - 1 == -1 case
never occurs (due to input validation, asserts, etc). Therefore we
don't need to worry about the fact that ctz32(0) == 32.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-5-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Rename config option from "glx" to "opengl", glx will not be the only
option for opengl in near future. Also switch over to pkg-config for
opengl support detection.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The VGA device model now supports having the framebuffer in either endian,
and can be switched between these by the guest via a register in the qext
region.
However, in some cases (e.g. LE OS on the pseries machine) we have
existing guest that don't know about the endian switch register, but other
parts of the qemu code have better information to set a default endianness
than the VGA code does of itself.
In order to allow them to set a correct default endianness in these cases,
without breaking abstraction walls, this patch exposes the VGA framebuffer
endianness via a writable QOM property.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
[agraf: use instance_init for property exposure]
Signed-off-by: Alexander Graf <agraf@suse.de>
A bunch of fixes all over the place.
All of ACPI refactoring has been merged.
Legacy pci commands have been dropped.
virtio header cleanup
initial patches from virtio-1.0 branch
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, pc, virtio fixes and cleanups
A bunch of fixes all over the place.
All of ACPI refactoring has been merged.
Legacy pci commands have been dropped.
virtio header cleanup
initial patches from virtio-1.0 branch
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/mst/tags/for_upstream: (130 commits)
acpi: drop unused code
aml-build: comment fix
acpi-build: fix typo in comment
acpi: update generated files
vhost user:support vhost user nic for non msi guests
aml-build: fix build for glib < 2.22
acpi: update generated files
Makefile.target: binary depends on config-devices
acpi-test-data: update after pci rewrite
acpi, mem-hotplug: use PC_DIMM_SLOT_PROP in acpi_memory_plug_cb().
pci-hotplug-old: Has been dead for five major releases, bury
pci: Give a few helpers internal linkage
acpi: make build_*() routines static to aml-build.c
pc: acpi: remove not used anymore ssdt-[misc|pcihp].hex.generated blobs
pc: acpi-build: drop template patching and create PCI bus tree dynamically
tests: ACPI: update pc/SSDT.bridge due to new alg of PCI tree creation
pc: acpi-build: simplify PCI bus tree generation
tests: add ACPI blobs for qemu with bridge cases
tests: bios-tables-test: add support for testing bridges
tests: ACPI test blobs update due to PCI0._CRS changes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Conflicts:
hw/pci/pci-hotplug-old.c
Commit 3dcadce507 added three
update_displaychangelistener call sites:
Two for primary qxl cards, when entering/leaving vga mode, which are
correct.
One for secondary qxl cards, which is wrong because we don't register
a displaychangelistener in the first place for secondary cards.
Remove it.
Reported-by: Brad Campbell <lists2009@fnarfbargle.com>
Tested-by: Brad Campbell <lists2009@fnarfbargle.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Make the code a bit more obvious.
We don't have min/max, so a general helper for clamp probably isn't
acceptable either.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We already have pow2floor, mirror it and use instead of a function with
similar results (same in used domain), to clarify our intent.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
vga_common_init() doesn't allow more than 256 MiB vram size and silently
shrinks any larger value. qxl_dirty_surfaces() used the unshrinked size
via qxl->shadow_rom.surface0_area_size when accessing the memory, which
resulted in segfault.
Add a workaround for this case and an assert if it happens again.
We have to bump the vga memory limit too, because 256 MiB wouldn't have
allowed 8k (it requires more than 128 MiB).
1024 MiB doesn't work, but 512 MiB seems fine.
Proposed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Convert the device models where initialization obviously can't fail.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Now that isa_mem_base variable is always 0, we can remove its usage.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Warning from the Sparse static analysis tool:
hw/display/vga.c:2012:26: warning:
symbol 'vmstate_vga_endian' was not declared. Should it be static?
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This allows VGA to decide whether to use a shared surface based on
whether the UI backend supports the format or not. Backends that
don't provide the new callback fallback to native 32 bpp which
is equivalent to what was supported before.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[ kraxel: fix console check, allow only 32 bpp as fallback ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There is nothing that is used by this ARM-specific device.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
set secondary-vga category.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141216-1' into staging
cirrus hwcursor fixes.
set secondary-vga category.
# gpg: Signature made Tue 16 Dec 2014 14:44:09 GMT using RSA key ID D3E87138
# 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>"
* remotes/kraxel/tags/pull-vga-20141216-1:
vga: set catagory bit for secondary vga device
move hw cursor pos from cirrus to vga
cirrus: Force use of shadow pixmap when HW cursor is enabled
vga: Add mechanism to force the use of a shadow surface
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The HW cursor cannot be painted on a shared surface. This fixes HW
cursor display in Windows NT 4.0 and Windows 98.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This prevents surface sharing which will be necessary to
fix cirrus HW cursor support.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Now that cursor updates are out of the way qxl needs the refresh timer
only when when running in vga mode, for dirty bitmap checking. In
native qxl mode the guest will notify us, so we don't need to poll and
can use the idle interval (one refresh wakeup every few seconds).
Cc: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Calling directly doesn't work due to the qxl-render code running in
spice server thread context. Meanwhile bottom half scheduling is
thread-safe though, so we can use that to kick a cursor update in
main i/o thread context.
Cc: Marc-André Lureau <marcandre.lureau@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Issues:
* Doesn't check pitches correctly in case it is negative.
* Doesn't check width at all.
Turn macro into functions while being at it, also factor out the check
for one region which we then can simply call twice for src + dst.
This is CVE-2014-8106.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Switch vmsvga_update_rect over to use vmsvga_verify_rect. Slight change
in behavior: We don't try to automatically fixup rectangles any more.
In case we find invalid update requests we'll do a full-screen update
instead.
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Don Koch <dkoch@verizon.com>
Add verification function for rectangles, returning
true if verification passes and false otherwise.
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Don Koch <dkoch@verizon.com>
Quick & easy stopgap for CVE-2014-3689: We just compile out the
hardware acceleration functions which lack sanity checks. Thankfully
we have capability bits for them (SVGA_CAP_RECT_COPY and
SVGA_CAP_RECT_FILL), so guests should deal just fine, in theory.
Subsequent patches will add the missing checks and re-enable the
hardware acceleration emulation.
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Don Koch <dkoch@verizon.com>
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block patches
# gpg: Signature made Mon 20 Oct 2014 13:04:09 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (28 commits)
block: Make device model's references to BlockBackend strong
block: Lift device model API into BlockBackend
blockdev: Convert qmp_eject(), qmp_change_blockdev() to BlockBackend
block/qapi: Convert qmp_query_block() to BlockBackend
blockdev: Fix blockdev-add not to create DriveInfo
blockdev: Drop superfluous DriveInfo member id
pc87312: Drop unused members of PC87312State
ide: Complete conversion from BlockDriverState to BlockBackend
hw: Convert from BlockDriverState to BlockBackend, mostly
virtio-blk: Rename VirtIOBlkConf variables to conf
virtio-blk: Drop redundant VirtIOBlock member conf
block: Rename BlockDriverCompletionFunc to BlockCompletionFunc
block: Rename BlockDriverAIOCB* to BlockAIOCB*
block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()
block: Merge BlockBackend and BlockDriverState name spaces
block: Eliminate BlockDriverState member device_name[]
block: Eliminate bdrv_iterate(), use bdrv_next()
blockdev: Eliminate drive_del()
block: Make BlockBackend own its BlockDriverState
block: Code motion to get rid of stubs/blockdev.c
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Device models should access their block backends only through the
block-backend.h API. Convert them, and drop direct includes of
inappropriate headers.
Just four uses of BlockDriverState are left:
* The Xen paravirtual block device backend (xen_disk.c) opens images
itself when set up via xenbus, bypassing blockdev.c. I figure it
should go through qmp_blockdev_add() instead.
* Device model "usb-storage" prompts for keys. No other device model
does, and this one probably shouldn't do it, either.
* ide_issue_trim_cb() uses bdrv_aio_discard() instead of
blk_aio_discard() because it fishes its backend out of a BlockAIOCB,
which has only the BlockDriverState.
* PC87312State has an unused BlockDriverState[] member.
The next two commits take care of the latter two.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The patch is big, but all it really does is replacing
dinfo->bdrv
by
blk_bs(blk_by_legacy_dinfo(dinfo))
The replacement is repetitive, but the conversion of device models to
BlockBackend is imminent, and will shorten it to just
blk_legacy_dinfo(dinfo).
Line wrapping muddies the waters a bit. I also omit tests whether
dinfo->bdrv is null, because it never is.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Following cleanup of the vga device code in commit d2e043a804,
the arrays dmask4 and dmask16 are now unused. gcc doesn't warn
about this, but clang does; remove them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add a qemu extented register range to the standard vga mmio bar.
Right nowe there are two registers: One readonly register returning the
size of the region (so we can easily add more registers there if needed)
and one endian control register, so guests (especially ppc) can flip
the framebuffer endianness as they need it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Xorg server hangs when using xfig and typing a text with space:
#0 qxl_wait_for_io_command (qxl=<value optimized out>) at qxl_io.c:47
#1 0x00007f826a49a299 in qxl_download_box (surface=0x221d030, x1=231, y1=259,
x2=<value optimized out>, y2=<value optimized out>) at qxl_surface.c:143
while (!(ram_header->int_pending & QXL_INTERRUPT_IO_CMD))
usleep (1);
The QXL driver is calling QXL_IO_UPDATE_AREA with an empty area. This
is a guest bug. The call is async and no ack is sent back on guest
bug, so the X server will hang. The driver should be improved to avoid
this situation and also to abort on QXL_INTERRUPT_ERROR. This will be
a different patch series for the driver. However, it is simple enough
to keep qemu running on empty areas update, which is what this patch
provides.
https://bugzilla.redhat.com/show_bug.cgi?id=1151363
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Include the endian state in the migration stream as an optional
subsection which we only include when the endian isn't the default,
thus enabling backward compatibility of the common case.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Changes by kraxel:
* Remove bochs dispi interface changes. We'll do that in
a different way to make sure we don't conflict with
possible future bochs dispi interface changes.
* keep live migration bits.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
And initialize it based on target endian
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
It's no longer a template, we only instanciate the file once.
Keep it a #included file so the functions remain static.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Not all platforms have a VGA BIOS, powerpc typically relies on
using the DISPI interface to initialize the card.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
We only draw cursor on non-shared surfaces (so it seems...) and
these are always 32bpp
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
The test for surface_bits_per_pixel() isn't necessary anymore,
the 8bpp case never happens.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
We always use rgb_to_pixel32 nowadays.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Provide different functions for converting from an LE vs a BE
framebuffer. We cannot rely on the simple cases always being
shared surfaces since cirrus will need to always shadow for
cursor emulation, so we need the full set of functions to
be able to later handle runtime switching.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>\
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
All the macros used to generate different versions of vga_template.h
are now unnecessary, take them all out and remove the _32 suffix from
most functions.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Nowadays, we either share a surface with the host, or we create
a 32bpp ARGB console surface.
So we only need to draw/convert to 32bpp, enabling us to remove
all but one instance of vga_template.h inclusion (to be further
cleaned up), rgb_to_pixel_* etc...
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* more EL2/EL3 preparation work
* don't handle c15_cpar changes via tb_flush()
* fix some unused function warnings in ARM devices
* build the GDB XML for 32 bit CPUs into qemu-*-aarch64
* implement guest breakpoint support
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140929' into staging
target-arm:
* more EL2/EL3 preparation work
* don't handle c15_cpar changes via tb_flush()
* fix some unused function warnings in ARM devices
* build the GDB XML for 32 bit CPUs into qemu-*-aarch64
* implement guest breakpoint support
# gpg: Signature made Mon 29 Sep 2014 19:25:37 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140929:
target-arm: Add support for VIRQ and VFIQ
target-arm: Add IRQ and FIQ routing to EL2 and 3
target-arm: A64: Emulate the SMC insn
target-arm: Add a Hypervisor Trap exception type
target-arm: A64: Emulate the HVC insn
target-arm: A64: Correct updates to FAR and ESR on exceptions
target-arm: Don't take interrupts targeting lower ELs
target-arm: Break out exception masking to a separate func
target-arm: A64: Refactor aarch64_cpu_do_interrupt
target-arm: Add SCR_EL3
target-arm: Add HCR_EL2
target-arm: Don't handle c15_cpar changes via tb_flush()
hw/input/tsc210x.c: Delete unused array tsc2101_rates
hw/display/pxa2xx_lcd.c: Remove unused function pxa2xx_dma_rdst_set
hw/intc/imx_avic.c: Remove unused function imx_avic_set_prio()
hw/display/blizzard.c: Delete unused function blizzard_rgb2yuv
configure: Build GDB XML for 32 bit ARM CPUs into qemu aarch64 binaries
target-arm: Implement handling of breakpoint firing
target-arm: Implement setting guest breakpoints
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Simply switch function pointers when entering/leaving vga mode.
Allows to remove wrapper functions which do nothing but dispatch
calls depending on the current qxl mode.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The S24/TCX framebuffer is a mildly accelerated video card with
blitter, stippler and hardware cursor.
* Solaris and NetBSD 6.x use all the hardware acceleration features
* The Xorg driver (used by Linux) can use the hardware cursor only
This patch implements hardware acceleration in both 8 bit and 24 bit
modes. It is based on the NetBSD driver sources and from tests with
Solaris.
Signed-off-by: Olivier Danet <odanet@caramail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
- Build: fixing block/iscsi.so and ranlib warnings on Mac OS X
- Migration fixes for x86
- The odd KVM patch.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
- Memory: improve error reporting and avoid crashes on hotplug
- Build: fixing block/iscsi.so and ranlib warnings on Mac OS X
- Migration fixes for x86
- The odd KVM patch.
# gpg: Signature made Thu 11 Sep 2014 11:21:10 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/bonzini/tags/for-upstream: (21 commits)
gdbstub: init mon_chr through qemu_chr_alloc
pckbd: adding new fields to vmstate
mc146818rtc: add missed field to vmstate
piix: do not set irq while loading vmstate
serial: fixing vmstate for save/restore
parallel: adding vmstate for save/restore
fdc: adding vmstate for save/restore
cpu: init vmstate for ticks and clock offset
apic_common: vapic_paddr synchronization fix
vl: use QLIST_FOREACH_SAFE to visit change state handlers
exec: add parameter errp to gethugepagesize
exec: report error when memory < hpagesize
hostmem-ram: don't exit qemu if size of memory-backend-ram is way too big
memory: add parameter errp to memory_region_init_rom_device
memory: add parameter errp to memory_region_init_ram
exec: add parameter errp to qemu_ram_alloc and qemu_ram_alloc_from_ptr
rules.mak: Fix DSO build by pulling in archive symbols
util: Don't link host-utils.o if it's empty
util: Move general qemu_getauxval to util/getauxval.c
trace: Only link generated-tracers.o with "simple" backend
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add parameter errp to memory_region_init_ram and update all call sites
to pass in &error_abort.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
With this patch the qemu console core stops using PixelFormat and pixman
format codes side-by-side, pixman format code is the primary way to
specify the DisplaySurface format:
* DisplaySurface stops carrying a PixelFormat field.
* qemu_create_displaysurface_from() expects a pixman format now.
Functions to convert PixelFormat to pixman_format_code_t (and back)
exist for those who still use PixelFormat. As PixelFormat allows
easy access to masks and shifts it will probably continue to exist.
[ xenfb added by Benjamin Herrenschmidt ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Plug a bunch of holes in the bochs dispi interface parameter checking.
Add a function doing verification on all registers. Call that
unconditionally on every register write. That way we should catch
everything, even changing one register affecting the valid range of
another register.
Some of the holes have been added by commit
e9c6149f6a. Before that commit the
maximum possible framebuffer (VBE_DISPI_MAX_XRES * VBE_DISPI_MAX_YRES *
32 bpp) has been smaller than the qemu vga memory (8MB) and the checking
for VBE_DISPI_MAX_XRES + VBE_DISPI_MAX_YRES + VBE_DISPI_MAX_BPP was ok.
Some of the holes have been there forever, such as
VBE_DISPI_INDEX_X_OFFSET and VBE_DISPI_INDEX_Y_OFFSET register writes
lacking any verification.
Security impact:
(1) Guest can make the ui (gtk/vnc/...) use memory rages outside the vga
frame buffer as source -> host memory leak. Memory isn't leaked to
the guest but to the vnc client though.
(2) Qemu will segfault in case the memory range happens to include
unmapped areas -> Guest can DoS itself.
The guest can not modify host memory, so I don't think this can be used
by the guest to escape.
CVE-2014-3615
Cc: qemu-stable@nongnu.org
Cc: secalert@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
VgaState->vram_size is the size of the pci bar. In case of qxl not the
whole pci bar can be used as vga framebuffer. Add a new variable
vbe_size to handle that case. By default (if unset) it equals
vram_size, but qxl can set vbe_size to something else.
This makes sure VBE_DISPI_INDEX_VIDEO_MEMORY_64K returns correct results
and sanity checks are done with the correct size too.
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Damn, the dirty rectangle values are signed integers. So the checks
added by commit 788fbf042f are not good
enough, we also have to make sure they are not negative.
[ Note: There must be something broken in spice-server so we get
negative values in the first place. Bug opened:
https://bugzilla.redhat.com/show_bug.cgi?id=1135372 ]
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Explicitly call object_unparent in the few places where we
will re-create the memory region. If the memory region is
simply being destroyed as part of device teardown, let QOM
handle it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead, add a boolean variable to indicate the presence of the region.
This avoids a repeated malloc/free (later we can also avoid the
add_child/unparent by changing the offset/size of the alias).
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit b2eb849d4b
"CVE-2007-1320 - Cirrus LGD-54XX "bitblt" heap overflow" broke
cpu to video blits.
When the ROP function is called from cirrus_bitblt_cputovideo_next(),
we pass 0 for the pitch but only operate on one line at a time. The
added test was tripping because after the initial substraction, the
pitch becomes negative. Make the test only trip when the height is
larger than one (ie. the pitch is actually used).
This fixes HW cursor support in Windows NT4.0 (which otherwise was
a white rectangle) and general display of icons in that OS when using
8bpp mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
when configure a invalid vram size for cirrus card, such as less
2 MB, which will crash qemu. Follow the real hardware, the cirrus
card has 4 MB video memory. Also for backward compatibility, accept
8 MB and 16 MB vram size.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Collection of fixes to build QEMU with Xen support on ARM:
- use xenstore_read_fe_uint64 to retrieve the page-ref (xenfb);
- use xen_pfn_t instead of unsigned long in xenfb;
- unsigned long/xenpfn_t in xen_remove_from_physmap;
- in xen-mapcache.c use HOST_LONG_BITS to check for QEMU's address space
size.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
So you'll have a mouse pointer when running non-qxl gfx cards with
mouse pointer support (virtio-gpu, IIRC vmware too).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
hello qemu-*@nongnu.org, this is my first contribution. apologies if
something is incorrect.
this patch fixes vmware_vga.c so that it actually returns the cursory
register when asked for, instead of cursorx.
Signed-off-by: Nicolas Owens <mischief@offblast.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* remotes/mcayland/qemu-sparc:
apb: implement IOMMU translation for PCI host bridge
apb: handle reading/writing of IOMMU control registers
apb: fix IOMMU register sizes
apb: Move IOMMU registers into a separate IOMMUState struct
tcx: move initialisation from realizefn to initfn
tcx: move initialisation from SysBusDevice class to TCX class realizefn
cg3: add extra check to prevent CG3 register array overflow
cg3: move initialisation from realizefn to initfn
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is an intermediate step to bring TCX in line with CG3.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Andreas Färber <afaerber@suse.de>
The case statements in the CG3 read and write register routines have a maximum
value of CG3_REG_SIZE, so if a value were written to this offset then it
would overflow the register array.
Currently this cannot be exploited since the MemoryRegion restricts accesses
to the range 0 ... CG3_REG_SIZE - 1, but it seems worth clarifying this for
future review and/or static analysis.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Paolo Bonzini <pbonzini@redhat.com>
The ld_raw and st_raw definitions are only needed in code that
must compile for both user-mode and softmmu emulation. Device
models can use the equivalent ld_p/st_p which are simple
pointer accessors.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* Preliminary restructuring for EL2/EL3 support
* improve CPACR handling
* fix pxa2xx_lcd palette formats
* update highbank/midway maintainer
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140527' into staging
target-arm:
* Preliminary restructuring for EL2/EL3 support
* improve CPACR handling
* fix pxa2xx_lcd palette formats
* update highbank/midway maintainer
# gpg: Signature made Tue 27 May 2014 17:26:27 BST using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found
* remotes/pmaydell/tags/pull-target-arm-20140527: (26 commits)
target-arm: A64: Register VBAR_EL3
target-arm: A64: Register VBAR_EL2
target-arm: Make vbar_write writeback to any CPREG
target-arm: A64: Generalize update_spsel for the various ELs
target-arm: A64: Generalize ERET to various ELs
target-arm: A64: Trap ERET from EL0 at translation time
target-arm: A64: Forbid ERET to higher or unimplemented ELs
target-arm: Register EL3 versions of ELR and SPSR
target-arm: Register EL2 versions of ELR and SPSR
target-arm: Add a feature flag for EL3
target-arm: Add a feature flag for EL2
target-arm: A64: Introduce aarch64_banked_spsr_index()
target-arm: Add SPSR entries for EL2/HYP and EL3/MON
target-arm: A64: Add ELR entries for EL2 and 3
target-arm: A64: Add SP entries for EL2 and 3
target-arm: c12_vbar -> vbar_el[]
target-arm: Make esr_el1 an array
target-arm: Make elr_el1 an array
target-arm: Use a 1:1 mapping between EL and MMU index
target-arm: A32: Use get_mem_index for load/stores
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The pxa2xx palette entry "16bpp plus transparency" format is
xxxxxxxTRRRRR000GGGGGG00BBBBB000, and "18bpp plus transparency" is
xxxxxxxTRRRRRR00GGGGGG00BBBBBB00.
Correct errors in the code for reading these and converting
them to the internal format. In particular, the buggy code
was attempting to mask out bit 24 of a uint16_t, which
Coverity spotted as an error.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1400233901-31785-1-git-send-email-peter.maydell@linaro.org
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140515' into staging
migration/next for 20140515
# gpg: Signature made Thu 15 May 2014 02:32:25 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140515:
usb: fix up post load checks
migration: show average throughput when migration finishes
savevm: Remove all the unneeded version_minimum_id_old (rest)
savevm: Remove all the unneeded version_minimum_id_old (usb)
Split ram_save_block
arch_init: Simplify code for load_xbzrle()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
After previous Peter patch, they are redundant. This way we don't
assign them except when needed. Once there, there were lots of case
where the ".fields" indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
After commit 767adce2d, they are redundant. This way we don't assign them
except when needed. Once there, there were lots of cases where the ".fields"
indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (apart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: fixed minor conflict, corrected commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140505' into staging
migration/next for 20140505
# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140505: (36 commits)
migration: expose xbzrle cache miss rate
migration: expose the bitmap_sync_count to the end
migration: Add counts of updating the dirty bitmap
XBZRLE: Fix one XBZRLE corruption issues
migration: remove duplicate code
Coverity: Fix failure path for qemu_accept in migration
Init the XBZRLE.lock in ram_mig_init
Provide init function for ram migration
Count used RAMBlock pages for migration_dirty_pages
Make qemu_peek_buffer loop until it gets it's data
Disallow outward migration while awaiting incoming migration
virtio: validate config_len on load
virtio-net: out-of-bounds buffer write on load
openpic: avoid buffer overrun on incoming migration
ssi-sd: fix buffer overrun on invalid state load
savevm: Ignore minimum_version_id_old if there is no load_state_old
usb: sanity check setup_index+setup_len in post_load
vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
virtio-scsi: fix buffer overrun on invalid state load
zaurus: fix buffer overrun on invalid state load
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
CVE-2013-4538
s->cmd_len used as index in ssd0323_transfer() to store 32-bit field.
Possible this field might then be supplied by guest to overwrite a
return addr somewhere. Same for row/col fields, which are indicies into
framebuffer array.
To fix validate after load.
Additionally, validate that the row/col_start/end are within bounds;
otherwise the guest can provoke an overrun by either setting the _end
field so large that the row++ increments just walk off the end of the
array, or by setting the _start value to something bogus and then
letting the "we hit end of row" logic reset row to row_start.
For completeness, validate mode as well.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
PortioList is an abstraction used for construction of MemoryRegionPortioList
from MemoryRegionPortio. It can be used later to unmap created memory regions.
It also requires proper cleanup because some of the memory inside is allocated
dynamically.
By moving PortioList ot device state we make it possible to cleanup later and
avoid leaking memory.
This change spans several target platforms. The following testcases cover all
changed lines:
qemu-system-ppc -M prep
qemu-system-i386 -vga qxl
qemu-system-i386 -M isapc -soundhw adlib -device ib700,id=watchdog0,bus=isa.0
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Add a standard vga variant which doesn't occupy any legacy
resources and thus can easily be used as secondary (or legacy-free)
graphics adapter. Programming must be done using the MMIO bar.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Need a way to opt-out from vga.vram being global vmstate, for
secondary vga cards. Add a bool parameter to vga_common_init
to support this.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
this fixes invalid rectangle updates observed after commit 12b316d
with the vmware VGA driver. The issues occured because the server
and client surface update seems to be out of sync at some points
and the max width of the surface is not dividable by
VNC_DIRTY_BITS_PER_PIXEL (16).
Reported-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Convert legacy ->qdev style casts from TYPE_SSI_SLAVE to TYPE_DEVICE.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Introduce local DeviceState variable for transition to QOM realize]
Signed-off-by: Andreas Färber <afaerber@suse.de>
In commit 5643706a09 (console: add head
to index to qemu consoles.) graphic_console_init() was extended to take
an additional argument, but xenfb was not updated accordingly. Fix it.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1394228528-31625-1-git-send-email-afaerber@suse.de
The CG3 framebuffer is a simple 8-bit framebuffer for use with operating
systems such as early Solaris that do not have drivers for TCX.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Blue Swirl <blauwirbel@gmail.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Bob Breuer <breuerr@mc.net>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
* QTest cleanups and test cases for PCI NICs
* NAND fix for "info qtree"
* Cleanup and extension of QOM machine tests
* IndustryPack test cases and conversion to QOM realize
* I2C cleanups
* Cleanups of legacy qdev properties
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging
QOM infrastructure fixes and device conversions
* QTest cleanups and test cases for PCI NICs
* NAND fix for "info qtree"
* Cleanup and extension of QOM machine tests
* IndustryPack test cases and conversion to QOM realize
* I2C cleanups
* Cleanups of legacy qdev properties
# gpg: Signature made Mon 17 Feb 2014 22:15:37 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-devices-for-peter: (49 commits)
qtest: Include system headers before user headers
qapi: Refine human printing of sizes
qdev: Use QAPI type names for properties
qdev: Add enum property types to QAPI schema
block: Handle "rechs" and "large" translation options
qdev: Remove hex8/32/64 property types
qdev: Remove most legacy printers
qdev: Use human mode in "info qtree"
qapi: Add human mode to StringOutputVisitor
qdev: Inline qdev_prop_parse()
qdev: Legacy properties are just strings
qdev: Legacy properties are now read-only
qdev: Remove legacy parsers for hex8/32/64
qdev: Sizes are now parsed by StringInputVisitor
qapi: Add size parser to StringInputVisitor
qtest: Don't segfault with invalid -qtest option
ipack: Move IndustryPack out of hw/char/
ipoctal232: QOM parent field cleanup
ipack: QOM parent field cleanup for IPackDevice
ipack: QOM parent field cleanup for IPackBus
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Replace them with uint8/32/64.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace usages of FROM_I2C_SLAVE() with QOM cast macro.
Rename parent field.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
