lkml.org 
[lkml]   [2008]   [Sep]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 05/40] KVM: MMU: Separate the code for unlinking a shadow page from its parents
Date
From: Avi Kivity <avi@qumranet.com>

Place into own function, in preparation for further cleanups.

Signed-off-by: Avi Kivity <avi@qumranet.com>
---
arch/x86/kvm/mmu.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 3da2508..81016a3 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -991,11 +991,10 @@ static void kvm_mmu_reset_last_pte_updated(struct kvm *kvm)
kvm->vcpus[i]->arch.last_pte_updated = NULL;
}

-static void kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+static void kvm_mmu_unlink_parents(struct kvm *kvm, struct kvm_mmu_page *sp)
{
u64 *parent_pte;

- ++kvm->stat.mmu_shadow_zapped;
while (sp->multimapped || sp->parent_pte) {
if (!sp->multimapped)
parent_pte = sp->parent_pte;
@@ -1010,7 +1009,13 @@ static void kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
kvm_mmu_put_page(sp, parent_pte);
set_shadow_pte(parent_pte, shadow_trap_nonpresent_pte);
}
+}
+
+static void kvm_mmu_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+{
+ ++kvm->stat.mmu_shadow_zapped;
kvm_mmu_page_unlink_children(kvm, sp);
+ kvm_mmu_unlink_parents(kvm, sp);
if (!sp->root_count) {
if (!sp->role.metaphysical && !sp->role.invalid)
unaccount_shadowed(kvm, sp->gfn);
--
1.6.0.1


\
 
 \ /
  Last update: 2008-09-23 15:53    [W:0.181 / U:0.556 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site