KVM: SVM: copy instruction bytes from VMCB
In case of a nested page fault or an intercepted #PF newer SVM
implementations provide a copy of the faulting instruction bytes
in the VMCB.
Use these bytes to feed the instruction emulator and avoid the costly
guest instruction fetch in this case.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index f0ffb81..f2b83bc 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -83,7 +83,9 @@
u32 clean;
u32 reserved_5;
u64 next_rip;
- u8 reserved_6[816];
+ u8 insn_len;
+ u8 insn_bytes[15];
+ u8 reserved_6[800];
};
