[PATCH 41/58] KVM: MMU: Remove cr0.wp tricks

Avi Kivity
2007-06-17T09:44:22Z

No longer needed as we do everything in one place.

Signed-off-by: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
---
drivers/kvm/paging_tmpl.h | 11 -----------
1 files changed, 0 insertions(+), 11 deletions(-)

diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h
index fabc2c9..59b4cb2 100644
--- a/drivers/kvm/paging_tmpl.h
+++ b/drivers/kvm/paging_tmpl.h
@@ -240,17 +240,6 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,

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)
|| (write_fault && !is_write_protection(vcpu) && !user_fault)) {
struct kvm_mmu_page *shadow;