KVM: VMX: Let the compiler save/load RDX during vCPU-run

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Per commit c20363006a ("KVM: VMX: Let gcc to choose which registers
to save (x86_64)"), the only reason RDX is saved/loaded to/from the
stack is because it was specified as an input, i.e. couldn't be marked
as clobbered (ignoring the fact that "saving" it to a dummy output
would indirectly mark it as clobbered).

Now that RDX is no longer an input, clobber it.

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>

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Sean Christopherson 2019-01-25 07:40:54 -08:00 • committed by Paolo Bonzini

parent ccf447434e

commit 6f7c6d23b7

1 changed files with 4 additions and 4 deletions

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arch/x86/kvm/vmx/vmx.c

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