diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2022-01-31 09:24:50 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-02-02 13:11:42 +0100 |
| commit | 1fb85d06ad6754796cd1b920639ca9d8840abefd (patch) | |
| tree | ccf0da8a52c5e498ff19c86c317e616c66ebbf1c /arch/x86/kvm/x86.h | |
| parent | c243cecb58e3905baeace8827201c14df8481e2a (diff) | |
x86: Share definition of __is_canonical_address()
Reduce code duplication by moving canonical address code to a common header
file.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-3-adrian.hunter@intel.com
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 635b75f9e145..fc4b68ab8d71 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -211,14 +211,9 @@ static inline u8 vcpu_virt_addr_bits(struct kvm_vcpu *vcpu) return kvm_read_cr4_bits(vcpu, X86_CR4_LA57) ? 57 : 48; } -static inline u64 get_canonical(u64 la, u8 vaddr_bits) -{ - return ((int64_t)la << (64 - vaddr_bits)) >> (64 - vaddr_bits); -} - static inline bool is_noncanonical_address(u64 la, struct kvm_vcpu *vcpu) { - return get_canonical(la, vcpu_virt_addr_bits(vcpu)) != la; + return !__is_canonical_address(la, vcpu_virt_addr_bits(vcpu)); } static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu, |