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KVM: VMX: Add AX to list of registers clobbered by guest switch
authorJan Kiszka <jan.kiszka@siemens.com>
Tue, 28 Sep 2010 14:37:42 +0000 (16:37 +0200)
committerAvi Kivity <avi@redhat.com>
Sun, 24 Oct 2010 08:53:07 +0000 (10:53 +0200)
By chance this caused no harm so far. We overwrite AX during switch
to/from guest context, so we must declare this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/vmx.c patch | blob | history

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 28c72da..007be84 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4007,7 +4007,7 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu)
 #endif
                [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2))
              : "cc", "memory"
-               , R"bx", R"di", R"si"
+               , R"ax", R"bx", R"di", R"si"
 #ifdef CONFIG_X86_64
                , "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
 #endif
Domain: System / Uncategorized;