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KVM: MMU: Remove cr0.wp tricks 

No longer needed as we do everything in one place.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2007-05-31 17:17:06 +03:00
parent e663ee64ae
commit 4436d46621
1 changed files with 0 additions and 11 deletions
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11
drivers/kvm/paging_tmpl.h
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@ -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;