KVM/nVMX: Remove unneeded forward jump in nested_vmx_check_vmentry_hw asm
There is no need to jump just after the jump insn itself. Also, make
code similar to entering guest mode in vmx_vcpu_run.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2806f79..6aaf407 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -11274,7 +11274,7 @@
"je 3f \n\t"
"mov %%" _ASM_AX", %%cr2 \n\t"
"3: \n\t"
- /* Check if vmlaunch of vmresume is needed */
+ /* Check if vmlaunch or vmresume is needed */
"cmpl $0, %c[launched](%0) \n\t"
/* Load guest registers. Don't clobber flags. */
"mov %c[rax](%0), %%" _ASM_AX " \n\t"
@@ -13298,15 +13298,13 @@
__ex("vmwrite %%" _ASM_SP ", %%" _ASM_DX) "\n\t"
"mov %%" _ASM_SP ", %c[host_rsp](%0)\n\t"
- /* Check if vmlaunch of vmresume is needed */
+ /* Check if vmlaunch or vmresume is needed */
"cmpl $0, %c[launched](%0)\n\t"
- "je 1f\n\t"
- __ex("vmresume") "\n\t"
+ "jne 1f\n\t"
+ __ex("vmlaunch") "\n\t"
"jmp 2f\n\t"
- "1: " __ex("vmlaunch") "\n\t"
- "jmp 2f\n\t"
+ "1: " __ex("vmresume") "\n\t"
"2: "
-
/* Set vmx->fail accordingly */
"setbe %c[fail](%0)\n\t"
