Commit 4f44c4ee authored by Sean Christopherson's avatar Sean Christopherson Committed by Paolo Bonzini
Browse files

KVM: VMX: Reorder clearing of registers in the vCPU-run assembly flow 



Move the clearing of the common registers (not 64-bit-only) to the start
of the flow that clears registers holding guest state.  This is
purely a cosmetic change so that the label doesn't point at a blank line
and a #define.

No functional change intended.

Signed-off-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent fc2ba5a2

arch/x86/kvm/vmx/vmenter.S

+6 −7
Original line number Diff line number Diff line
@@ -185,7 +185,12 @@ ENTRY(__vmx_vcpu_run) 
	 * free.  RSP and RAX are exempt as RSP is restored by hardware during

	 * VM-Exit and RAX is explicitly loaded with 0 or 1 to return VM-Fail.

	 */

1:

1:	xor %ebx, %ebx

	xor %ecx, %ecx

	xor %edx, %edx

	xor %esi, %esi

	xor %edi, %edi

	xor %ebp, %ebp

#ifdef CONFIG_X86_64

	xor %r8d,  %r8d

	xor %r9d,  %r9d
@@ -196,12 +201,6 @@ ENTRY(__vmx_vcpu_run) 
	xor %r14d, %r14d

	xor %r15d, %r15d

#endif

	xor %ebx, %ebx

	xor %ecx, %ecx

	xor %edx, %edx

	xor %esi, %esi

	xor %edi, %edi

	xor %ebp, %ebp



	/* "POP" @regs. */

	add $WORD_SIZE, %_ASM_SP