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authorPaolo Bonzini <pbonzini@redhat.com>2022-03-05 02:39:29 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2022-03-05 02:39:29 +0300
commit0564eeb71bbb0e1a566fb701f90155bef9e7a224 (patch)
tree2935323651d0f8ab2acb5f96f6ee6c722a9cad5a /arch/x86/kvm/vmx/nested.c
parentb652de1e3dfb3b49e539e88a684a68e333e1bd7c (diff)
parent8d25b7beca7ed6ca34f53f0f8abd009e2be15d94 (diff)
downloadlinux-0564eeb71bbb0e1a566fb701f90155bef9e7a224.tar.xz
Merge branch 'kvm-bugfixes' into HEAD
Merge bugfixes from 5.17 before merging more tricky work.
Diffstat (limited to 'arch/x86/kvm/vmx/nested.c')
-rw-r--r--arch/x86/kvm/vmx/nested.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 1dfe23963a9e..f18744f7ff82 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -246,8 +246,7 @@ static void vmx_sync_vmcs_host_state(struct vcpu_vmx *vmx,
src = &prev->host_state;
dest = &vmx->loaded_vmcs->host_state;
- vmx_set_vmcs_host_state(dest, src->cr3, src->fs_sel, src->gs_sel,
- src->fs_base, src->gs_base);
+ vmx_set_host_fs_gs(dest, src->fs_sel, src->gs_sel, src->fs_base, src->gs_base);
dest->ldt_sel = src->ldt_sel;
#ifdef CONFIG_X86_64
dest->ds_sel = src->ds_sel;
@@ -3056,7 +3055,7 @@ static int nested_vmx_check_guest_state(struct kvm_vcpu *vcpu,
static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
- unsigned long cr4;
+ unsigned long cr3, cr4;
bool vm_fail;
if (!nested_early_check)
@@ -3079,6 +3078,12 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
*/
vmcs_writel(GUEST_RFLAGS, 0);
+ cr3 = __get_current_cr3_fast();
+ if (unlikely(cr3 != vmx->loaded_vmcs->host_state.cr3)) {
+ vmcs_writel(HOST_CR3, cr3);
+ vmx->loaded_vmcs->host_state.cr3 = cr3;
+ }
+
cr4 = cr4_read_shadow();
if (unlikely(cr4 != vmx->loaded_vmcs->host_state.cr4)) {
vmcs_writel(HOST_CR4, cr4);