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[Qemu-devel] [PATCH] KVM: unmap SMM memslots in vt-d table
From: |
herongguang |
Subject: |
[Qemu-devel] [PATCH] KVM: unmap SMM memslots in vt-d table |
Date: |
Sat, 25 Mar 2017 19:14:24 +0800 |
or pages are not unmaped and freed
Signed-off-by: herongguang <address@hidden>
---
arch/x86/kvm/iommu.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
Well, do we should change pci-assign to not map SMM slots instead? Like vfio.
diff --git a/arch/x86/kvm/iommu.c b/arch/x86/kvm/iommu.c
index b181426..5b931bb 100644
--- a/arch/x86/kvm/iommu.c
+++ b/arch/x86/kvm/iommu.c
@@ -320,15 +320,17 @@ void kvm_iommu_unmap_pages(struct kvm *kvm, struct
kvm_memory_slot *slot)
static int kvm_iommu_unmap_memslots(struct kvm *kvm)
{
int idx;
- struct kvm_memslots *slots;
+ struct kvm_memslots *slots, *smm_slots;
struct kvm_memory_slot *memslot;
idx = srcu_read_lock(&kvm->srcu);
slots = kvm_memslots(kvm);
-
kvm_for_each_memslot(memslot, slots)
kvm_iommu_unmap_pages(kvm, memslot);
+ smm_slots = __kvm_memslots(kvm, 1);
+ kvm_for_each_memslot(memslot, smm_slots)
+ kvm_iommu_unmap_pages(kvm, memslot);
srcu_read_unlock(&kvm->srcu, idx);
if (kvm->arch.iommu_noncoherent)
--
1.7.12.4
- [Qemu-devel] [PATCH] KVM: unmap SMM memslots in vt-d table,
herongguang <=