github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-23 06:31:58 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

KVM: arm64: selftests: get-reg-list: Simplify feature dependency

Browse Source 
Describing the dependencies between registers and features is on
the masochistic side of things, with hard-coded values that would
be better taken from the existing description.

Add a couple of helpers to that effect, and repaint the dependency
array. More could be done to improve this test, but my interest is
wearing  thin...

Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Itaru Kitayama <itaru.kitayama@fujitsu.com>
Link: https://lore.kernel.org/r/20250714122634.3334816-10-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Marc Zyngier 2025-07-14 13:26:32 +01:00 committed by Oliver Upton
parent a0aae0a9a7
commit 9a40718079
1 changed files with 22 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
tools/testing/selftests/kvm/arm64/get-reg-list.c
View File

@ -15,6 +15,12 @@
#include "test_util.h"
#include "processor.h"
#define SYS_REG(r) ARM64_SYS_REG(sys_reg_Op0(SYS_ ## r), \
sys_reg_Op1(SYS_ ## r), \
sys_reg_CRn(SYS_ ## r), \
sys_reg_CRm(SYS_ ## r), \
sys_reg_Op2(SYS_ ## r))
struct feature_id_reg {
__u64 reg;
__u64 id_reg;
@ -22,37 +28,23 @@ struct feature_id_reg {
__u64 feat_min;
};
static struct feature_id_reg feat_id_regs[] = {
{
ARM64_SYS_REG(3, 0, 2, 0, 3), /* TCR2_EL1 */
ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
0,
1
},
{
ARM64_SYS_REG(3, 0, 10, 2, 2), /* PIRE0_EL1 */
ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
8,
1
},
{
ARM64_SYS_REG(3, 0, 10, 2, 3), /* PIR_EL1 */
ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
8,
1
},
{
ARM64_SYS_REG(3, 0, 10, 2, 4), /* POR_EL1 */
ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
16,
1
},
{
ARM64_SYS_REG(3, 3, 10, 2, 4), /* POR_EL0 */
ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */
16,
1
#define FEAT(id, f, v) \
.id_reg = SYS_REG(id), \
.feat_shift = id ## _ ## f ## _SHIFT, \
.feat_min = id ## _ ## f ## _ ## v
#define REG_FEAT(r, id, f, v) \
{ \
.reg = SYS_REG(r), \
FEAT(id, f, v) \
}
static struct feature_id_reg feat_id_regs[] = {
REG_FEAT(TCR2_EL1, ID_AA64MMFR3_EL1, TCRX, IMP),
REG_FEAT(PIRE0_EL1, ID_AA64MMFR3_EL1, S1PIE, IMP),
REG_FEAT(PIR_EL1, ID_AA64MMFR3_EL1, S1PIE, IMP),
REG_FEAT(POR_EL1, ID_AA64MMFR3_EL1, S1POE, IMP),
REG_FEAT(POR_EL0, ID_AA64MMFR3_EL1, S1POE, IMP),
};
bool filter_reg(__u64 reg)