Add IS_ALIGNED/IS_PAGE_ALIGNED helpers for selftests.
Signed-off-by: Vishal Annapurve vannapurve@google.com --- tools/testing/selftests/kvm/include/kvm_util_base.h | 3 +++ tools/testing/selftests/kvm/include/x86_64/processor.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 5e30f5b461bf..4eecc847d9f9 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -168,6 +168,9 @@ extern enum vm_guest_mode vm_mode_default; #define MIN_PAGE_SIZE (1U << MIN_PAGE_SHIFT) #define PTES_PER_MIN_PAGE ptes_per_page(MIN_PAGE_SIZE)
+/* @a is a power of 2 value */ +#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) + struct vm_guest_mode_params { unsigned int pa_bits; unsigned int va_bits; diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h index e8ca0d8a6a7e..62677f266583 100644 --- a/tools/testing/selftests/kvm/include/x86_64/processor.h +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -175,6 +175,7 @@ struct kvm_x86_cpu_feature { #define PAGE_SHIFT 12 #define PAGE_SIZE (1ULL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) +#define IS_PAGE_ALIGNED(x) IS_ALIGNED(x, PAGE_SIZE)
#define PHYSICAL_PAGE_MASK GENMASK_ULL(51, 12) #define PTE_GET_PFN(pte) (((pte) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)