@@ -6283,13 +6283,13 @@ static void handle_external_interrupt_irqoff(struct kvm_vcpu *vcpu)
asm volatile(
#ifdef CONFIG_X86_64
- "mov %%" _ASM_SP ", %[sp]\n\t"
- "and $0xfffffffffffffff0, %%" _ASM_SP "\n\t"
- "push $%c[ss]\n\t"
+ "mov %%rsp, %[sp]\n\t"
+ "and $-16, %%rsp\n\t"
+ "push %[ss]\n\t"
"push %[sp]\n\t"
#endif
"pushf\n\t"
- __ASM_SIZE(push) " $%c[cs]\n\t"
+ "push %[cs]\n\t"
CALL_NOSPEC
:
#ifdef CONFIG_X86_64
@@ -6298,8 +6298,10 @@ static void handle_external_interrupt_irqoff(struct kvm_vcpu *vcpu)
ASM_CALL_CONSTRAINT
:
[thunk_target]"r"(entry),
- [ss]"i"(__KERNEL_DS),
- [cs]"i"(__KERNEL_CS)
+#ifdef CONFIG_X86_64
+ [ss]"rme"(__KERNEL_DS),
+#endif
+ [cs]"rme"(__KERNEL_CS)
);
kvm_after_interrupt(vcpu);
Improve handle_external_interrupt_irqoff inline assembly in several ways: - use "rme" operand constraint instead of "i" and remove unneeded %c operand modifiers and "$" prefixes - use %rsp instead of _ASM_SP, since we are in CONFIG_X86_64 part - use $-16 immediate to align %rsp - remove unneeded use of __ASM_SIZE macro - define "ss" named operand only for X86_64 The patch introduces no functional changes. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Uros Bizjak <ubizjak@gmail.com> --- arch/x86/kvm/vmx/vmx.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)