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authorSean Christopherson <seanjc@google.com>2022-06-15 02:33:22 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2022-06-20 13:21:26 +0300
commit1ae20e0b975caf8ff51511a89cce5e28ec3e4d70 (patch)
tree3721bb1065e226c5b7963a0a49c65d65446ba922 /arch/x86/kvm/vmx/vmx.c
parentb8e1b9626746209c980ce3fbf9ec3fc86910873d (diff)
KVM: VMX: Refactor 32-bit PSE PT creation to avoid using MMU macro
Compute the number of PTEs to be filled for the 32-bit PSE page tables using the page size and the size of each entry. While using the MMU's PT32_ENT_PER_PAGE macro is arguably better in isolation, removing VMX's usage will allow a future namespacing cleanup to move the guest page table macros into paging_tmpl.h, out of the reach of code that isn't directly related to shadow paging. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220614233328.3896033-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
-rw-r--r--arch/x86/kvm/vmx/vmx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 2609bcc8c130..4002f6cc179d 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -3710,7 +3710,7 @@ static int init_rmode_identity_map(struct kvm *kvm)
}
/* Set up identity-mapping pagetable for EPT in real mode */
- for (i = 0; i < PT32_ENT_PER_PAGE; i++) {
+ for (i = 0; i < (PAGE_SIZE / sizeof(tmp)); i++) {
tmp = (i << 22) + (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |
_PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_PSE);
if (__copy_to_user(uaddr + i * sizeof(tmp), &tmp, sizeof(tmp))) {