diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-01-08 23:24:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-11 15:35:54 +0300 |
| commit | 7426ddf01f1639c19a79d93c5a354b463a563d29 (patch) | |
| tree | 3f07ff9be003b8e853b255914295439ebc791777 | |
| parent | 09bd0033df05c282ac5a5d74f5448128157b70aa (diff) | |
| download | linux-7426ddf01f1639c19a79d93c5a354b463a563d29.tar.xz | |
KVM: Use vcpu-specific gva->hva translation when querying host page size
[ Upstream commit f9b84e19221efc5f493156ee0329df3142085f28 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/powerpc/kvm/book3s_xive_native.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/mmu.c | 6 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 2 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 4 |
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 5a3373e06e60..235d57d6c205 100644 --- a/arch/powerpc/kvm/book3s_xive_native.c +++ b/arch/powerpc/kvm/book3s_xive_native.c @@ -638,7 +638,7 @@ 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.c b/arch/x86/kvm/mmu.c index 46070da9e08f..518100ea5ef4 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/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); for (i = PT_PAGE_TABLE_LEVEL; i <= PT_MAX_HUGEPAGE_LEVEL; ++i) { if (page_size >= KVM_HPAGE_SIZE(i)) @@ -1341,7 +1341,7 @@ static int mapping_level(struct kvm_vcpu *vcpu, gfn_t large_gfn, if (unlikely(*force_pt_level)) return PT_PAGE_TABLE_LEVEL; - host_level = host_mapping_level(vcpu->kvm, large_gfn); + host_level = host_mapping_level(vcpu, large_gfn); if (host_level == PT_PAGE_TABLE_LEVEL) return host_level; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 7d1564c40897..b81f0f1ded5f 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -751,7 +751,7 @@ 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 6f0287ad927e..877ce955b99c 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1394,14 +1394,14 @@ bool kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn) } EXPORT_SYMBOL_GPL(kvm_is_visible_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; |