diff options
authorSean Christopherson <sean.j.christopherson@intel.com>2020-01-08 12:24:37 -0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-01-27 20:00:02 +0100
commitf9b84e19221efc5f493156ee0329df3142085f28 (patch)
parentmm: thp: KVM: Explicitly check for THP when populating secondary MMU (diff)
KVM: Use vcpu-specific gva->hva translation when querying host page size
Use kvm_vcpu_gfn_to_hva() when retrieving the host page size so that the correct set of memslots is used when handling x86 page faults in SMM. Fixes: 54bf36aac520 ("KVM: x86: use vcpu-specific functions to read/write/translate GFNs") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
4 files changed, 7 insertions, 7 deletions
diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c
index d83adb1e1490..6ef0151ff70a 100644
--- a/arch/powerpc/kvm/book3s_xive_native.c
+++ b/arch/powerpc/kvm/book3s_xive_native.c
@@ -631,7 +631,7 @@ static int kvmppc_xive_native_set_queue_config(struct kvmppc_xive *xive,
srcu_idx = srcu_read_lock(&kvm->srcu);
gfn = gpa_to_gfn(kvm_eq.qaddr);
- page_size = kvm_host_page_size(kvm, gfn);
+ page_size = kvm_host_page_size(vcpu, gfn);
if (1ull << kvm_eq.qshift > page_size) {
srcu_read_unlock(&kvm->srcu, srcu_idx);
pr_warn("Incompatible host page size %lx!\n", page_size);
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 7eb21a22cc13..e4458c9aec8c 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -1286,12 +1286,12 @@ static bool mmu_gfn_lpage_is_disallowed(struct kvm_vcpu *vcpu, gfn_t gfn,
return __mmu_gfn_lpage_is_disallowed(gfn, level, slot);
-static int host_mapping_level(struct kvm *kvm, gfn_t gfn)
+static int host_mapping_level(struct kvm_vcpu *vcpu, gfn_t gfn)
unsigned long page_size;
int i, ret = 0;
- page_size = kvm_host_page_size(kvm, gfn);
+ page_size = kvm_host_page_size(vcpu, gfn);
if (page_size >= KVM_HPAGE_SIZE(i))
@@ -1362,7 +1362,7 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn,
* So, do not propagate host_mapping_level() to max_level as KVM can
* still promote the guest mapping to a huge page in the THP case.
- host_level = host_mapping_level(vcpu->kvm, large_gfn);
+ host_level = host_mapping_level(vcpu, large_gfn);
return min(host_level, max_level);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 46fdb7533678..6d5331b0d937 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -762,7 +762,7 @@ int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
-unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn);
+unsigned long kvm_host_page_size(struct kvm_vcpu *vcpu, gfn_t gfn);
void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
struct kvm_memslots *kvm_vcpu_memslots(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 64e9e9d65ed4..f6f8ffc2e865 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1402,14 +1402,14 @@ bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
-unsigned long kvm_host_page_size(struct kvm *kvm, gfn_t gfn)
+unsigned long kvm_host_page_size(struct kvm_vcpu *vcpu, gfn_t gfn)
struct vm_area_struct *vma;
unsigned long addr, size;
size = PAGE_SIZE;
- addr = gfn_to_hva(kvm, gfn);
+ addr = kvm_vcpu_gfn_to_hva(vcpu, gfn);
if (kvm_is_error_hva(addr))
return PAGE_SIZE;