Move all groups into a single field and handle them in a single place. This
saves bits when we add more group types (3 bits -> 7 groups types).
Signed-off-by: Avi Kivity <avi@redhat.com>
walk_addr_generic() is a hot path and is also hard for the cpu to predict -
some of the parameters (fetch_fault in particular) vary wildly from
invocation to invocation.
Add unlikely() annotations where appropriate; all walk failures are
considered unlikely, as are cases where we have to mark the accessed or
dirty bit, as they are slow paths both in kvm and on real processors.
Signed-off-by: Avi Kivity <avi@redhat.com>
For this, emulate_pusha/popa() are converted to em_pusha/popa().
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
In addition, the RET emulation is changed to call em_pop() to remove
the pop_instruction label.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
The following instructions are changed to use opcode::execute.
Group 1 (80-83)
ADD (00-05), OR (08-0D), ADC (10-15), SBB (18-1D), AND (20-25),
SUB (28-2D), XOR (30-35), CMP (38-3D)
CMPS (A6-A7), SCAS (AE-AF)
The last two do the same as CMP in the emulator, so em_cmp() is used.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
This patch optimizes the guest page table walk by using get_user()
instead of copy_from_user().
With this patch applied, paging64_walk_addr_generic() has become
about 0.5us to 1.0us faster on my Phenom II machine with NPT on.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
By reserving 0 as an invalid x86_intercept_stage, we no longer
need to store a valid flag in x86_intercept_map.
Signed-off-by: Avi Kivity <avi@redhat.com>
While it isn't defined, no need to force a #UD. If it becomes defined
in the future this can cause wierd problems for the guest.
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/emulate.c:2598: warning: integer constant is too large for 'long' type
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Commit 0b56652e33c72092956c651ab6ceb9f0ad081153 fails to build:
CC [M] arch/x86/kvm/emulate.o
arch/x86/kvm/emulate.c: In function 'x86_emulate_insn':
arch/x86/kvm/emulate.c:4095:25: error: macro "wbinvd" passed 1 arguments, but takes just 0
arch/x86/kvm/emulate.c:4095:3: warning: statement with no effect
make[2]: *** [arch/x86/kvm/emulate.o] Error 1
make[1]: *** [arch/x86/kvm] Error 2
make: *** [arch/x86] Error 2
Work around this for now.
Signed-off-by: Clemens Noss <cnoss@gmx.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Function ioapic_debug() in the ioapic_deliver() misnames
one filed by reference. This patch correct it.
Signed-off-by: Liu Yuan <tailai.ly@taobao.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This patch makes the cmpxchg_gpte() function aware of the
difference between l1-gfns and l2-gfns when nested
virtualization is in use. This fixes a potential
data-corruption problem in the l1-guest and makes the code
work correct (at least as correct as the hardware which is
emulated in this code) again.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Avoid using ctxt->vcpu; we can do everything with ->get_cr() and ->set_cr().
A side effect is that we no longer activate the fpu on emulated CLTS; but that
should be very rare.
Signed-off-by: Avi Kivity <avi@redhat.com>
Making the emulator caller agnostic.
[Takuya Yoshikawa: fix typo leading to LDT failures]
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
cayman is reporting the wrong tile config value to userspace, this
causes piglit mipmap generation tests to fail.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This was leading to a bogus value being programmed to the backend
routing register.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
None of the latest GPUs had this hooked up, this is necessary for
correct operation in a lot of cases, however we should test this on a few
GPUs in these families as we've had problems in this area before.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
On cayman we need to set the bit to cause HDP flushes to invalidate the
HDP cache also.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This needs to be explicitly set on btc. It's set by default
on evergreen/fusion, so it fine to just unconditionally enable it for
all chips.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
This was based on a description by Ben Herrenschmidt:
> I've removed that SBA reset from the normal TLB invalidation path and
> left it only once after turning AGP on.
About six months ago, he said:
> I did it a bit differently, but yeah, you get the idea. I'm doing a
> patch series so don't bother pushing things too hard yet.
But I haven't seen anything from him about this since then, and people are
regularly hitting these lockups, so here we are...
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@gmail.com>
If the ss clock is external, the CLK_REF bit needs to be set
in the SetPixelClock parameters. This should fix DP failures
in the channel equalization loop.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
This will pave the way for each apic driver to be self-contained
and eliminate the need for apic_probe[].
Order in which apic drivers are listed in the .apicdrivers
section is important, as this determines the apic probe order.
And this is enforced by the ordering of apic driver files in the
Makefile and the macros apic_driver()/apic_drivers().
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Tested-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: steiner@sgi.com
Cc: gorcunov@openvz.org
Cc: yinghai@kernel.org
Link: http://lkml.kernel.org/r/20110521005526.068775085@sbsiddha-MOBL3.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Commit 22de71b ("ASoC: core - allow ASoC more flexible machine name")
writes "(null)" to driver name string in struct snd_card if card->driver_name
is NULL. This causes segmentation faults with some user space ALSA utilities
like aplay and arecord.
Fix this by using the card->name if no driver name is specified.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Gleb Natapov
Avi Kivity
Takuya Yoshikawa
Randy Dunlap
Clemens Noss
Liu Yuan
Roedel, Joerg
Dave Airlie
Alex Deucher
Michel Dänzer
Suresh Siddha
Ingo Molnar
Takashi Iwai
James Bottomley
Mark Brown
Jarkko Nikula