- 24 Oct, 2010 37 commits
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Avi Kivity authored
Instead of looking up the opcode twice (once for decode flags, once for the big execution switch) look up both flags and function in the decode tables. Signed-off-by:
Avi Kivity <avi@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com>
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Avi Kivity authored
It doesn't ever change, so we don't need to pass it around everywhere. Signed-off-by:
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Avi Kivity authored
Now that the group index no longer exists, the space is free. Signed-off-by:
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
Instead of having a group number, store the group table pointer directly in the opcode. Signed-off-by:
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Avi Kivity authored
We'll be using that to distinguish between new-style and old-style groups. Signed-off-by:
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Avi Kivity authored
No code changes. Signed-off-by:
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Avi Kivity authored
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:
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Avi Kivity authored
This will hold all the information known about the opcode. Currently, this is just the decode flags. Signed-off-by:
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Avi Kivity authored
The parenthese make is impossible to use the macros with initializers that require braces. Signed-off-by:
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Mohammed Gamal authored
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:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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Joerg Roedel authored
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:
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Joerg Roedel authored
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:
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Xiao Guangrong authored
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:
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Avi Kivity authored
Now that we have the host gdt conveniently stored in a variable, make use of it instead of querying the cpu. Signed-off-by:
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Avi Kivity authored
Use just one group table for byte (F6) and word (F7) opcodes. Signed-off-by:
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Avi Kivity authored
Opcodes F6/2, F6/3, F7/2, F7/3. Signed-off-by:
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Avi Kivity authored
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:
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Avi Kivity authored
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:
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Avi Kivity authored
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:
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Avi Kivity authored
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:
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
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Avi Kivity authored
Some instructions are repetitive in the opcode space, add macros for consolidating them. Signed-off-by:
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Avi Kivity authored
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:
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- 20 Oct, 2010 1 commit
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Fix fs/gs reload oops with invalid ldt
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- 19 Oct, 2010 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* '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
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Avi Kivity authored
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:
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