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KVM: x86 emulator: Add check_perm callback

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This patch adds a check_perm callback for each opcode into
the instruction emulator. This will be used to do all
necessary permission checks on instructions before checking
whether they are intercepted or not.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel
2011-04-04 12:39:25 +02:00
committed by Avi Kivity
parent 775fde8648
commit d09beabd7c
2 changed files with 15 additions and 0 deletions
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arch/x86/include/asm/kvm_emulate.h
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@@ -222,6 +222,7 @@ struct decode_cache {
u8 seg_override;
unsigned int d;
int (*execute)(struct x86_emulate_ctxt *ctxt);
int (*check_perm)(struct x86_emulate_ctxt *ctxt);
unsigned long regs[NR_VCPU_REGS];
unsigned long eip;
/* modrm */