Commit Graph

211590 Commits

Author SHA1 Message Date
Avi Kivity
9aabc88fc8 KVM: x86 emulator: store x86_emulate_ops in emulation context
It doesn't ever change, so we don't need to pass it around everywhere.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:21 +02:00
Avi Kivity
ab85b12b1a KVM: x86 emulator: move ByteOp and Dst back to bits 0:3
Now that the group index no longer exists, the space is free.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:20 +02:00
Avi Kivity
3885d530b0 KVM: x86 emulator: drop support for old-style groups
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:19 +02:00
Avi Kivity
9f5d3220e3 KVM: x86 emulator: convert group 9 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:18 +02:00
Avi Kivity
2cb20bc8af KVM: x86 emulator: convert group 8 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:18 +02:00
Avi Kivity
2f3a9bc9eb KVM: x86 emulator: convert group 7 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:16 +02:00
Avi Kivity
b67f9f0741 KVM: x86 emulator: convert group 5 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:15 +02:00
Avi Kivity
591c9d20a3 KVM: x86 emulator: convert group 4 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:14 +02:00
Avi Kivity
ee70ea30ee KVM: x86 emulator: convert group 3 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:13 +02:00
Avi Kivity
99880c5cd5 KVM: x86 emulator: convert group 1A to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:12 +02:00
Avi Kivity
5b92b5faff KVM: x86 emulator: convert group 1 to new style
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:11 +02:00
Avi Kivity
120df8902d KVM: x86 emulator: allow specifying group directly in opcode
Instead of having a group number, store the group table pointer directly in
the opcode.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:10 +02:00
Avi Kivity
793d5a8d6b KVM: x86 emulator: reserve group code 0
We'll be using that to distinguish between new-style and old-style groups.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:09 +02:00
Avi Kivity
42a1c52095 KVM: x86 emulator: move group tables to top
No code changes.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:08 +02:00
Avi Kivity
fd853310a1 KVM: x86 emulator: Add wrappers for easily defining opcodes
Once 'struct opcode' grows, its initializer will become more complicated.
Wrap the simple initializers in a D() macro, and replace the empty initializers
with an even simpler N macro.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:08 +02:00
Avi Kivity
d65b1dee40 KVM: x86 emulator: introduce 'struct opcode'
This will hold all the information known about the opcode.  Currently, this
is just the decode flags.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:07 +02:00
Avi Kivity
ea9ef04e19 KVM: x86 emulator: drop parentheses in repreat macros
The parenthese make is impossible to use the macros with initializers that
require braces.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:06 +02:00
Mohammed Gamal
62bd430e6d KVM: x86 emulator: Add IRET instruction
Ths patch adds IRET instruction (opcode 0xcf).
Currently, only IRET in real mode is emulated. Protected mode support is to be added later if needed.

Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
Reviewed-by: Avi Kivity <avi@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:05 +02:00
Joerg Roedel
7a190667bb KVM: SVM: Emulate next_rip svm feature
This patch implements the emulations of the svm next_rip
feature in the nested svm implementation in kvm.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:04 +02:00
Joerg Roedel
3f6a9d1693 KVM: SVM: Sync efer back into nested vmcb
This patch fixes a bug in a nested hypervisor that heavily
switches between real-mode and long-mode. The problem is
fixed by syncing back efer into the guest vmcb on emulated
vmexit.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:03 +02:00
Xiao Guangrong
19ada5c4b6 KVM: MMU: remove valueless output message
After commit 53383eaad08d, the '*spte' has updated before call
rmap_remove()(in most case it's 'shadow_trap_nonpresent_pte'), so
remove this information from error message

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:02 +02:00
Avi Kivity
d359192fea KVM: VMX: Use host_gdt variable wherever we need the host gdt
Now that we have the host gdt conveniently stored in a variable, make use
of it instead of querying the cpu.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:01 +02:00
Avi Kivity
e071edd5ba KVM: x86 emulator: unify the two Group 3 variants
Use just one group table for byte (F6) and word (F7) opcodes.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:50:00 +02:00
Avi Kivity
dfe11481d8 KVM: x86 emulator: Allow LOCK prefix for NEG and NOT
Opcodes F6/2, F6/3, F7/2, F7/3.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:59 +02:00
Avi Kivity
4968ec4e26 KVM: x86 emulator: simplify Group 1 decoding
Move operand decoding to the opcode table, keep lock decoding in the group
table.  This allows us to get consolidate the four variants of Group 1 into one
group.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:58 +02:00
Avi Kivity
52811d7de5 KVM: x86 emulator: mix decode bits from opcode and group decode tables
Allow bits that are common to all members of a group to be specified in the
opcode table instead of the group table.  This allows some simplification
of the decode tables.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:58 +02:00
Avi Kivity
047a481809 KVM: x86 emulator: add Undefined decode flag
Add a decode flag to indicate the instruction is invalid.  Will come in useful
later, when we mix decode bits from the opcode and group table.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:57 +02:00
Avi Kivity
2ce495365f KVM: x86 emulator: Make group storage bits separate from operand bits
Currently group bits are stored in bits 0:7, where operand bits are stored.

Make group bits be 0:3, and move the existing bits 0:3 to 16:19, so we can
mix group and operand bits.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:55 +02:00
Avi Kivity
880a188378 KVM: x86 emulator: consolidate Jcc rel32 decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:55 +02:00
Avi Kivity
be8eacddbd KVM: x86 emulator: consolidate CMOVcc decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:53 +02:00
Avi Kivity
b6e6153885 KVM: x86 emulator: consolidate MOV reg, imm decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:52 +02:00
Avi Kivity
b3ab3405fe KVM: x86 emulator: consolidate Jcc rel8 decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:51 +02:00
Avi Kivity
3849186c38 KVM: x86 emulator: consolidate push/pop reg decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:49 +02:00
Avi Kivity
749358a6b4 KVM: x86 emulator: consolidate inc/dec reg decoding
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:48 +02:00
Avi Kivity
83babbca46 KVM: x86 emulator: add macros for repetitive instructions
Some instructions are repetitive in the opcode space, add macros for
consolidating them.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:48 +02:00
Avi Kivity
91269b8f94 KVM: x86 emulator: fix handling for unemulated instructions
If an instruction is present in the decode tables but not in the execution
switch, it will be emulated as a NOP.  An example is IRET (0xcf).

Fix by adding default: labels to the execution switches.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:49:47 +02:00
Linus Torvalds
ef2533dae5 Merge branch 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Fix fs/gs reload oops with invalid ldt
2010-10-20 09:00:44 -07:00
Linus Torvalds
51ea8a88aa Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: avivo cursor workaround applies to evergreen as well
2010-10-19 10:10:20 -07:00
Avi Kivity
9581d442b9 KVM: Fix fs/gs reload oops with invalid ldt
kvm reloads the host's fs and gs blindly, however the underlying segment
descriptors may be invalid due to the user modifying the ldt after loading
them.

Fix by using the safe accessors (loadsegment() and load_gs_index()) instead
of home grown unsafe versions.

This is CVE-2010-3698.

KVM-Stable-Tag.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-19 14:21:45 -02:00
Linus Torvalds
547af560dd Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus:
  MIPS: Enable ISA_DMA_API config to fix build failure
  MIPS: 32-bit: Fix build failure in asm/fcntl.h
  MIPS: Remove all generated vmlinuz* files on "make clean"
  MIPS: do_sigaltstack() expects userland pointers
  MIPS: Fix error values in case of bad_stack
  MIPS: Sanitize restart logics
  MIPS: secure_computing, syscall audit: syscall number should in r2, not r0.
  MIPS: Don't block signals if we'd failed to setup a sigframe
2010-10-18 13:10:36 -07:00
Linus Torvalds
b0579fc089 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: evdev - fix EVIOCSABS regression
  Input: evdev - fix Ooops in EVIOCGABS/EVIOCSABS
2010-10-18 13:10:08 -07:00
Linus Torvalds
7f81c56cf2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: ohci: fix TI TSB82AA2 regression since 2.6.35
2010-10-18 13:09:26 -07:00
Sascha Hauer
63f1474c69 mxc_nand: do not depend on disabling the irq in the interrupt handler
This patch reverts the driver to enabling/disabling the NFC interrupt
mask rather than enabling/disabling the system interrupt.  This cleans
up the driver so that it doesn't rely on interrupts being disabled
within the interrupt handler.

For i.MX21 we keep the current behaviour, that is calling
enable_irq/disable_irq_nosync to enable/disable interrupts.  This patch
is based on earlier work by John Ogness.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: John Ogness <john.ogness@linutronix.de>
Tested-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-18 13:09:05 -07:00
Linus Torvalds
f68c834b04 Merge branch 'for-linus/i2c/2636-rc8' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c/2636-rc8' of git://git.fluff.org/bjdooks/linux:
  i2c-imx: do not allow interruptions when waiting for I2C to complete
  i2c-davinci: Fix TX setup for more SoCs
2010-10-18 13:05:10 -07:00
Linus Torvalds
822a2e4524 Merge branch 'fixes'
* fixes:
  v4l1: fix 32-bit compat microcode loading translation
  De-pessimize rds_page_copy_user
2010-10-18 13:04:33 -07:00
Namhyung Kim
a35bee8a27 MIPS: Enable ISA_DMA_API config to fix build failure
Add ISA_DMA_API config item and select it when GENERIC_ISA_DMA enabled.
This fixes build failure on allmodconfig like following:

  CC      sound/isa/es18xx.o
sound/isa/es18xx.c: In function 'snd_es18xx_playback1_prepare':
sound/isa/es18xx.c:501:9: error: implicit declaration of function 'snd_dma_program'
sound/isa/es18xx.c: In function 'snd_es18xx_playback_pointer':
sound/isa/es18xx.c:818:3: error: implicit declaration of function 'snd_dma_pointer'
make[3]: *** [sound/isa/es18xx.o] Error 1
make[2]: *** [sound/isa/es18xx.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1717/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Namhyung Kim
063c13a5ad MIPS: 32-bit: Fix build failure in asm/fcntl.h
CC      security/integrity/ima/ima_fs.o
In file included from linux/include/linux/fcntl.h:4:0,
                 from linux/security/integrity/ima/ima_fs.c:18:
linux/arch/mips/include/asm/fcntl.h:63:2: error: expected specifier-qualifier-list before 'off_t'
make[3]: *** [security/integrity/ima/ima_fs.o] Error 1
make[2]: *** [security/integrity/ima/ima_fs.o] Error 2
make[1]: *** [sub-make] Error 2
make: *** [all] Error 2

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1715/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Wu Zhangjin
ec3352925b MIPS: Remove all generated vmlinuz* files on "make clean"
[Ralf: I changed the patch to explicitly list all files to be deleted out
of paranoia.]

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/1590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:04 +01:00
Al Viro
4bfb8c5c87 MIPS: do_sigaltstack() expects userland pointers
o32 compat does the right thing, native and n32 compat do not...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:03 +01:00
Al Viro
5b89c0044e MIPS: Fix error values in case of bad_stack
We want EFAULT, not -<syscall number>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-10-18 16:59:03 +01:00