linux-kernel - [PATCH v15 6/6] KVM: selftests: arm64: Add GCS registers to get-reg-list

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Message-Id: <20250820-arm64-gcs-v15-6-5e334da18b84@kernel.org>
Date: Wed, 20 Aug 2025 15:14:46 +0100
From: Mark Brown <broonie@...nel.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>, 
 Oliver Upton <oliver.upton@...ux.dev>, Joey Gouly <joey.gouly@....com>, 
 Suzuki K Poulose <suzuki.poulose@....com>, Shuah Khan <shuah@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org, 
 kvmarm@...ts.linux.dev, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>, 
 Thiago Jung Bauermann <thiago.bauermann@...aro.org>
Subject: [PATCH v15 6/6] KVM: selftests: arm64: Add GCS registers to
 get-reg-list

GCS adds new registers GCSCR_EL1, GCSCRE0_EL1, GCSPR_EL1 and GCSPR_EL0. Add
these to those validated by get-reg-list.

Reviewed-by: Thiago Jung Bauermann <thiago.bauermann@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 tools/testing/selftests/kvm/arm64/get-reg-list.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/testing/selftests/kvm/arm64/get-reg-list.c b/tools/testing/selftests/kvm/arm64/get-reg-list.c
index 011fad95dd02..9bf33064377b 100644
--- a/tools/testing/selftests/kvm/arm64/get-reg-list.c
+++ b/tools/testing/selftests/kvm/arm64/get-reg-list.c
@@ -42,6 +42,12 @@ struct feature_id_reg {
 static struct feature_id_reg feat_id_regs[] = {
 	REG_FEAT(TCR2_EL1,	ID_AA64MMFR3_EL1, TCRX, IMP),
 	REG_FEAT(TCR2_EL2,	ID_AA64MMFR3_EL1, TCRX, IMP),
+	REG_FEAT(GCSPR_EL0,	ID_AA64PFR1_EL1, GCS, IMP),
+	REG_FEAT(GCSPR_EL1,	ID_AA64PFR1_EL1, GCS, IMP),
+	REG_FEAT(GCSPR_EL2,	ID_AA64PFR1_EL1, GCS, IMP),
+	REG_FEAT(GCSCRE0_EL1,	ID_AA64PFR1_EL1, GCS, IMP),
+	REG_FEAT(GCSCR_EL1,	ID_AA64PFR1_EL1, GCS, IMP),
+	REG_FEAT(GCSCR_EL2,	ID_AA64PFR1_EL1, GCS, IMP),
 	REG_FEAT(PIRE0_EL1,	ID_AA64MMFR3_EL1, S1PIE, IMP),
 	REG_FEAT(PIRE0_EL2,	ID_AA64MMFR3_EL1, S1PIE, IMP),
 	REG_FEAT(PIR_EL1,	ID_AA64MMFR3_EL1, S1PIE, IMP),
@@ -486,6 +492,9 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 2, 0, 1),	/* TTBR1_EL1 */
 	ARM64_SYS_REG(3, 0, 2, 0, 2),	/* TCR_EL1 */
 	ARM64_SYS_REG(3, 0, 2, 0, 3),	/* TCR2_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 5, 0),	/* GCSCR_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 5, 1),	/* GCSPR_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 5, 2),	/* GCSCRE0_EL1 */
 	ARM64_SYS_REG(3, 0, 5, 1, 0),	/* AFSR0_EL1 */
 	ARM64_SYS_REG(3, 0, 5, 1, 1),	/* AFSR1_EL1 */
 	ARM64_SYS_REG(3, 0, 5, 2, 0),	/* ESR_EL1 */
@@ -502,6 +511,7 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 13, 0, 4),	/* TPIDR_EL1 */
 	ARM64_SYS_REG(3, 0, 14, 1, 0),	/* CNTKCTL_EL1 */
 	ARM64_SYS_REG(3, 2, 0, 0, 0),	/* CSSELR_EL1 */
+	ARM64_SYS_REG(3, 3, 2, 5, 1),	/* GCSPR_EL0 */
 	ARM64_SYS_REG(3, 3, 10, 2, 4),	/* POR_EL0 */
 	ARM64_SYS_REG(3, 3, 13, 0, 2),	/* TPIDR_EL0 */
 	ARM64_SYS_REG(3, 3, 13, 0, 3),	/* TPIDRRO_EL0 */
@@ -740,6 +750,8 @@ static __u64 el2_regs[] = {
 	SYS_REG(PIRE0_EL2),
 	SYS_REG(PIR_EL2),
 	SYS_REG(POR_EL2),
+	SYS_REG(GCSPR_EL2),
+	SYS_REG(GCSCR_EL2),
 	SYS_REG(AMAIR_EL2),
 	SYS_REG(VBAR_EL2),
 	SYS_REG(CONTEXTIDR_EL2),

-- 
2.39.5