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| author | Reiji Watanabe <reijiw@google.com> | 2022-10-20 08:41:54 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-10 22:03:54 +0300 |
| commit | 1a6182033f2d5c481aec1f8c1c26ebc649693d57 (patch) | |
| tree | 7cfd87f9b8072fd000f7ef953b71cf1879f48a11 /tools/testing/selftests/kvm/lib/aarch64/processor.c | |
| parent | 30a0b95b1335e12efef89dd78518ed3e4a71a763 (diff) | |
| download | linux-1a6182033f2d5c481aec1f8c1c26ebc649693d57.tar.xz | |
KVM: arm64: selftests: Use FIELD_GET() to extract ID register fields
Use FIELD_GET() macro to extract ID register fields for existing
aarch64 selftests code. No functional change intended.
Signed-off-by: Reiji Watanabe <reijiw@google.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221020054202.2119018-2-reijiw@google.com
Diffstat (limited to 'tools/testing/selftests/kvm/lib/aarch64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/aarch64/processor.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c index 6f5551368944..7c96b931edd5 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/processor.c +++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c @@ -11,6 +11,7 @@ #include "guest_modes.h" #include "kvm_util.h" #include "processor.h" +#include <linux/bitfield.h> #define DEFAULT_ARM64_GUEST_STACK_VADDR_MIN 0xac0000 @@ -486,9 +487,9 @@ void aarch64_get_supported_page_sizes(uint32_t ipa, err = ioctl(vcpu_fd, KVM_GET_ONE_REG, ®); TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_GET_ONE_REG, vcpu_fd)); - *ps4k = ((val >> 28) & 0xf) != 0xf; - *ps64k = ((val >> 24) & 0xf) == 0; - *ps16k = ((val >> 20) & 0xf) != 0; + *ps4k = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_TGRAN4), val) != 0xf; + *ps64k = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_TGRAN64), val) == 0; + *ps16k = FIELD_GET(ARM64_FEATURE_MASK(ID_AA64MMFR0_TGRAN16), val) != 0; close(vcpu_fd); close(vm_fd); |