KVM: x86 emulator: Add check_perm callback

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>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 1dbd0c736cd1..460c2d8964b7 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -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 */