diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-07-15 22:42:20 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-07-28 13:22:15 -0400 |
| commit | 35d539c3e44f2021ff47a91cf4e6a35c550b6fbc (patch) | |
| tree | bfd6b93a4a12e79ed077661d150c8e0b30941b24 /arch/x86/kvm/mmu | |
| parent | da0b93d65e5bba6d4381f9dc99c547b60582e7a7 (diff) | |
KVM: x86/mmu: Return a u64 (the old SPTE) from mmu_spte_clear_track_bits()
Return a u64, not an int, from mmu_spte_clear_track_bits(). The return
value is the old SPTE value, which is very much a 64-bit value. The sole
caller that consumes the return value, drop_spte(), already uses a u64.
The only reason that truncating the SPTE value is not problematic is
because drop_spte() only queries the shadow-present bit, which is in the
lower 32 bits.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220715224226.3749507-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 52664c3caaab..b2379ede2ed6 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -529,7 +529,7 @@ static bool mmu_spte_update(u64 *sptep, u64 new_spte) * state bits, it is used to clear the last level sptep. * Returns the old PTE. */ -static int mmu_spte_clear_track_bits(struct kvm *kvm, u64 *sptep) +static u64 mmu_spte_clear_track_bits(struct kvm *kvm, u64 *sptep) { kvm_pfn_t pfn; u64 old_spte = *sptep; |