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From: Fuad Tabba <fuad.tabba@linux.dev>
To: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
	kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Steffen Eiden <seiden@linux.ibm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Yicong Yang <yangyicong@hisilicon.com>,
	Zhou Wang <wangzhou1@hisilicon.com>,
	Arnd Bergmann <arnd@arndb.de>, Fuad Tabba <tabba@google.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 5/5] KVM: arm64: selftests: Add ACCDATA_EL1 to get-reg-list
Date: Sun, 25 Oct 2026 07:51:38 +0000	[thread overview]
Message-ID: <20261025075138.2919734-6-fuad.tabba@linux.dev> (raw)
In-Reply-To: <20261025075138.2919734-1-fuad.tabba@linux.dev>

KVM exposes ACCDATA_EL1 to userspace when the guest has
FEAT_LS64_ACCDATA. Add it to get-reg-list, conditioned on
ID_AA64ISAR1_EL1.LS64, so that the test still passes on hosts that
implement the feature.

Cc: stable@vger.kernel.org
Signed-off-by: Fuad Tabba <fuad.tabba@linux.dev>
---
 tools/testing/selftests/kvm/arm64/get-reg-list.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/kvm/arm64/get-reg-list.c b/tools/testing/selftests/kvm/arm64/get-reg-list.c
index 533994687b5d8..912590f9b0c2b 100644
--- a/tools/testing/selftests/kvm/arm64/get-reg-list.c
+++ b/tools/testing/selftests/kvm/arm64/get-reg-list.c
@@ -49,6 +49,7 @@ static struct feature_id_reg feat_id_regs[] = {
 	REG_FEAT(POR_EL1,	ID_AA64MMFR3_EL1, S1POE, IMP),
 	REG_FEAT(POR_EL0,	ID_AA64MMFR3_EL1, S1POE, IMP),
 	REG_FEAT(POR_EL2,	ID_AA64MMFR3_EL1, S1POE, IMP),
+	REG_FEAT(ACCDATA_EL1,	ID_AA64ISAR1_EL1, LS64, LS64_ACCDATA),
 	REG_FEAT(HCRX_EL2,	ID_AA64MMFR1_EL1, HCX, IMP),
 	REG_FEAT(HFGRTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
 	REG_FEAT(HFGWTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
@@ -517,6 +518,7 @@ static __u64 base_regs[] = {
 	ARM64_SYS_REG(3, 0, 12, 1, 1),	/* DISR_EL1 */
 	ARM64_SYS_REG(3, 0, 13, 0, 1),	/* CONTEXTIDR_EL1 */
 	ARM64_SYS_REG(3, 0, 13, 0, 4),	/* TPIDR_EL1 */
+	ARM64_SYS_REG(3, 0, 13, 0, 5),	/* ACCDATA_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, 10, 2, 4),	/* POR_EL0 */
-- 
2.47.3


      parent reply	other threads:[~2026-10-25  7:52 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-25  7:51 [PATCH v2 0/5] KVM: arm64: Support FEAT_LS64_ACCDATA in guests Fuad Tabba
2026-10-25  7:51 ` [PATCH v2 1/5] arm64: Add override for ID_AA64ISAR1_EL1.LS64 Fuad Tabba
2026-10-25  7:51 ` [PATCH v2 2/5] KVM: arm64: Add ACCDATA_EL1 to the sysreg array Fuad Tabba
2026-10-25  7:51 ` [PATCH v2 3/5] KVM: arm64: Add context-switch of ACCDATA_EL1 Fuad Tabba
2026-10-26 15:41   ` Suzuki K Poulose
2026-10-26 17:09     ` Fuad Tabba
2026-10-26 17:32   ` Arnd Bergmann
2026-10-26 18:54     ` Fuad Tabba
2026-10-25  7:51 ` [PATCH v2 4/5] KVM: arm64: Enable ST64BV0 for guests with FEAT_LS64_ACCDATA Fuad Tabba
2026-10-25  7:51 ` Fuad Tabba [this message]

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