KVM: VMX: Load/save guest CR2 via C code in __vmx_vcpu_run()

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...to eliminate its parameter and struct vcpu_vmx offset definition
from the assembly blob.  Accessing CR2 from C versus assembly doesn't
change the likelihood of taking a page fault (and modifying CR2) while
it's loaded with the guest's value, so long as we don't do anything
silly between accessing CR2 and VM-Enter/VM-Exit.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Sean Christopherson 2019-01-25 07:41:03 -08:00 • committed by Paolo Bonzini

parent 5a8781607e

commit 47e97c099b

1 changed files with 5 additions and 11 deletions

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arch/x86/kvm/vmx/vmx.c

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