Use vm->pa_bits to generate the mask of physical address bits that are reserved in page table entries. vm->pa_bits is set when the VM is created, i.e. it's guaranteed to be valid when populating page tables. Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> --- tools/testing/selftests/kvm/lib/x86_64/processor.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 887272a33837..5fd6563f23d1 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -221,16 +221,12 @@ static uint64_t *_vm_get_page_table_entry(struct kvm_vm *vm, uint16_t index[4]; uint64_t *pml4e, *pdpe, *pde; uint64_t *pte; - struct kvm_cpuid_entry2 *entry; struct kvm_sregs sregs; - int max_phy_addr; uint64_t rsvd_mask = 0; - entry = kvm_get_supported_cpuid_index(0x80000008, 0); - max_phy_addr = entry->eax & 0x000000ff; /* Set the high bits in the reserved mask. */ - if (max_phy_addr < 52) - rsvd_mask = GENMASK_ULL(51, max_phy_addr); + if (vm->pa_bits < 52) + rsvd_mask = GENMASK_ULL(51, vm->pa_bits); /* * SDM vol 3, fig 4-11 "Formats of CR3 and Paging-Structure Entries -- 2.36.1.476.g0c4daa206d-goog
