HYP_PAGE_OFFSET is not massively useful. And the way we use it in KERN_HYP_VA is inconsistent with the equivalent operation in EL2, where we use a mask instead.
Let's replace the uses of HYP_PAGE_OFFSET with HYP_PAGE_OFFSET_MASK, and get rid of the pointless macro. Signed-off-by: Marc Zyngier <marc.zyng...@arm.com> Signed-off-by: Christoffer Dall <christoffer.d...@linaro.org> --- arch/arm64/include/asm/kvm_mmu.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index 6149dfc..2f1e1ae 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -70,7 +70,6 @@ */ #define HYP_PAGE_OFFSET_SHIFT VA_BITS #define HYP_PAGE_OFFSET_MASK ((UL(1) << HYP_PAGE_OFFSET_SHIFT) - 1) -#define HYP_PAGE_OFFSET (PAGE_OFFSET & HYP_PAGE_OFFSET_MASK) /* * Our virtual mapping for the idmap-ed MMU-enable code. Must be @@ -104,7 +103,7 @@ alternative_endif #include <asm/mmu_context.h> #include <asm/pgtable.h> -#define KERN_TO_HYP(kva) ((unsigned long)kva - PAGE_OFFSET + HYP_PAGE_OFFSET) +#define KERN_TO_HYP(kva) ((unsigned long)kva & HYP_PAGE_OFFSET_MASK) /* * We currently only support a 40bit IPA. -- 2.8.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
