Commit 9dc6bc3f authored Oct 19, 2019 by Ben Hutchings Committed by Greg Kroah-Hartman Nov 16, 2019

KVM: x86: Add is_executable_pte()



Extracted from commit d3e328f2cb01 "kvm: x86: mmu: Verify that
restored PTE has needed perms in fast page fault".

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 515fa37a

arch/x86/kvm/mmu.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -338,6 +338,11 @@ static int is_last_spte(u64 pte, int level)
		return 0;
		}

		static bool is_executable_pte(u64 spte)
		{
		return (spte & (shadow_x_mask \| shadow_nx_mask)) == shadow_x_mask;
		}

		static kvm_pfn_t spte_to_pfn(u64 pte)
		{
		return (pte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT;