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 4ad99f295f2a..7ba32471df50 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -170,6 +170,9 @@ 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 5d310abe6c3f..4d5dd9a467e1 100644 --- a/tools/testing/selftests/kvm/include/x86_64/processor.h +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -279,6 +279,7 @@ static inline unsigned int x86_model(unsigned int eax) #define PAGE_SHIFT 12 #define PAGE_SIZE (1ULL << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1) & PHYSICAL_PAGE_MASK) +#define IS_PAGE_ALIGNED(x) IS_ALIGNED(x, PAGE_SIZE)
#define HUGEPAGE_SHIFT(x) (PAGE_SHIFT + (((x) - 1) * 9)) #define HUGEPAGE_SIZE(x) (1UL << HUGEPAGE_SHIFT(x))