KVM: nVMX: Remove a rogue "rax" clobber from nested_vmx_check_vmentry_hw()

BugLink: https://bugs.launchpad.net/bugs/1832775
commit 9ce0a07a6f49822238fd4357c02e0dba060a43cc upstream.

RAX is not touched by nested_vmx_check_vmentry_hw(), directly or
indirectly (e.g. vmx_vmenter()).  Remove it from the clobber list.

Fixes: 52017608da33 ("KVM: nVMX: add option to perform early consistency checks via H/W")
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index a4bcac94392c3dc7800ad1d1b2ebb41ac8b5e18a..8f8c42b048757dd1a662a01ef601fb6fa8cc7bba 100644 (file)
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2793,7 +2793,7 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
                [fail]"i"(offsetof(struct vcpu_vmx, fail)),
                [host_rsp]"i"(offsetof(struct vcpu_vmx, host_rsp)),
                [wordsize]"i"(sizeof(ulong))
-             : "rax", "cc", "memory"
+             : "cc", "memory"
        );
 
        preempt_enable();