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KVM: VMX: Refactor 32-bit PSE PT creation to avoid using MMU macro

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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>
Message-Id: <20220614233328.3896033-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-06-14 23:33:22 +00:00 committed by Paolo Bonzini
parent b8e1b96267
commit 1ae20e0b97
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/vmx/vmx.c
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@ -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))) {