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Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r--arch/x86/kvm/x86.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3c83711c0ebe..d294983ee1c0 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6536,8 +6536,12 @@ static void kvm_set_mmio_spte_mask(void)
* Set the reserved bits and the present bit of an paging-structure
* entry to generate page fault with PFER.RSV = 1.
*/
- /* Mask the reserved physical address bits. */
- mask = rsvd_bits(maxphyaddr, 51);
+
+ /*
+ * Mask the uppermost physical address bit, which would be reserved as
+ * long as the supported physical address width is less than 52.
+ */
+ mask = 1ull << 51;
/* Set the present bit. */
mask |= 1ull;