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kvm: x86: vmx: cleanup handle_ept_violation

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Instead, just use PFERR_{FETCH, PRESENT, WRITE}_MASK
inside handle_ept_violation() for slightly better code.

Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Tiejun Chen 2014-11-18 17:12:56 +08:00 committed by Paolo Bonzini
parent f210f7572b
commit 81ed33e4aa
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kvm/vmx.c
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@ -5482,11 +5482,11 @@ static int handle_ept_violation(struct kvm_vcpu *vcpu)
trace_kvm_page_fault(gpa, exit_qualification);
/* It is a write fault? */
error_code = exit_qualification & (1U << 1);
error_code = exit_qualification & PFERR_WRITE_MASK;
/* It is a fetch fault? */
error_code |= (exit_qualification & (1U << 2)) << 2;
error_code |= (exit_qualification << 2) & PFERR_FETCH_MASK;
/* ept page table is present? */
error_code |= (exit_qualification >> 3) & 0x1;
error_code |= (exit_qualification >> 3) & PFERR_PRESENT_MASK;
vcpu->arch.exit_qualification = exit_qualification;