dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

KVM: move postcommit flush to x86, as mmio sptes are x86 specific 

Other arches do not need this.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

v2: fix incorrect deletion of mmio sptes on gpa move (noticed by Takuya)
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2012-08-28 17:43:26 -03:00 committed by Avi Kivity
parent 12d6e7538e
commit 3b4dc3a031
2 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/x86/kvm/x86.c
View File

@ -6445,6 +6445,14 @@ void kvm_arch_commit_memory_region(struct kvm *kvm,
kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages);
kvm_mmu_slot_remove_write_access(kvm, mem->slot);
spin_unlock(&kvm->mmu_lock);
/*
* If memory slot is created, or moved, we need to clear all
* mmio sptes.
*/
if (npages && old.base_gfn != mem->guest_phys_addr >> PAGE_SHIFT) {
kvm_mmu_zap_all(kvm);
kvm_reload_remote_mmus(kvm);
}
}
void kvm_arch_flush_shadow_all(struct kvm *kvm)

7
virt/kvm/kvm_main.c
View File

@ -849,13 +849,6 @@ int __kvm_set_memory_region(struct kvm *kvm,
kvm_arch_commit_memory_region(kvm, mem, old, user_alloc);
/*
* If the new memory slot is created, we need to clear all
* mmio sptes.
*/
if (npages && old.base_gfn != mem->guest_phys_addr >> PAGE_SHIFT)
kvm_arch_flush_shadow_all(kvm);
kvm_free_physmem_slot(&old, &new);
kfree(old_memslots);