KVM: MMU: Remove cr0.wp tricks (4436d466) · Commits · 戴 / test

drivers/kvm/paging_tmpl.h

+0 −11

Original line number	Original line	Diff line number	Diff line
	@@ -240,17 +240,6 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,

	spte \|= paddr;		spte \|= paddr;

	if (!write_fault && (spte & PT_SHADOW_USER_MASK) &&
	!(spte & PT_USER_MASK)) {
	/*
	* If supervisor write protect is disabled, we shadow kernel
	* pages as user pages so we can trap the write access.
	*/
	spte \|= PT_USER_MASK;
	spte &= ~PT_WRITABLE_MASK;
	access_bits &= ~PT_WRITABLE_MASK;
	}

	if ((access_bits & PT_WRITABLE_MASK)		if ((access_bits & PT_WRITABLE_MASK)
	\|\| (write_fault && !is_write_protection(vcpu) && !user_fault)) {		\|\| (write_fault && !is_write_protection(vcpu) && !user_fault)) {
	struct kvm_mmu_page *shadow;		struct kvm_mmu_page *shadow;