Messages in this thread Patch in this message | | | Date | Wed, 23 Jun 2021 16:05:50 -0700 | Subject | [PATCH 5/7] KVM: VMX: Refactor 32-bit PSE PT creation to avoid using MMU macro | From | Sean Christopherson <> |
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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> --- arch/x86/kvm/vmx/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index ab6f682645d7..f6fa922ca6e3 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3584,7 +3584,7 @@ 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))) { -- 2.32.0.288.g62a8d224e6-goog
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