From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
kvm@vger.kernel.org
Cc: Steffen Eiden <seiden@linux.ibm.com>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oupton@kernel.org>,
Zenghui Yu <yuzenghui@huawei.com>,
Yao Yuan <yaoyuan@linux.alibaba.com>,
Wei-Lin Chang <weilin.chang@arm.com>,
Vladimir Murzin <vladimir.murzin@arm.com>
Subject: [PATCH v4 13/29] arm64: sysreg: Add NVHCR_EL2 description as a mirror of HCR_EL2
Date: Thu, 30 Jul 2026 08:10:06 +0100 [thread overview]
Message-ID: <20260730071022.296811-14-maz@kernel.org> (raw)
In-Reply-To: <20260730071022.296811-1-maz@kernel.org>
FEAT_NV3 introduces a new register that contains the HCR_EL2 value
exposed to a NV guest. As such, it has the exact same layout as
HCR_EL2.
Describe NVHCR_EL2 as a mapping to HCR_EL2.
Reviewed-by: Yuan Yao <yaoyuan@linux.alibaba.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/tools/sysreg | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index 28755f70f0bf0..42839d2b15ae4 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -4266,6 +4266,9 @@ Field 1 E2TRE
Field 0 E0HTRE
EndSysreg
+Sysreg NVHCR_EL2 3 4 1 5 0
+Mapping HCR_EL2
+EndSysreg
Sysreg HDFGRTR2_EL2 3 4 3 1 0
Res0 63:25
--
2.47.3
next prev parent reply other threads:[~2026-07-30 7:11 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-30 7:09 [PATCH v4 00/29] KVM: arm64: Add support for FEAT_NV2p1 and FEAT_NV3 Marc Zyngier
2026-07-30 7:09 ` [PATCH v4 01/29] arm64: sysreg: Emit RESx/UNKN values for Mapping/Fields definitions Marc Zyngier
2026-07-30 7:09 ` [PATCH v4 02/29] arm64: Update ID_AA64MMFR4_EL1 description to 2026-03 JSON release Marc Zyngier
2026-07-30 7:09 ` [PATCH v4 03/29] KVM: arm64: Merge guest's HCRX_EL2 using NV_HCRX_GUEST_EXCLUDE Marc Zyngier
2026-07-30 7:29 ` sashiko-bot
2026-07-30 8:01 ` Marc Zyngier
2026-07-30 9:42 ` Joey Gouly
2026-07-30 7:09 ` [PATCH v4 04/29] KVM: arm64: Drop __HCRX_EL2_* masks Marc Zyngier
2026-07-30 7:09 ` [PATCH v4 05/29] KVM: arm64: Plumb HCRX_EL2.SRMASKEn in HCRX_EL2 sanitisation Marc Zyngier
2026-07-30 7:09 ` [PATCH v4 06/29] KVM: arm64: Classify CPTR_EL2 as a SR_LOC_SPECIAL register Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 07/29] KVM: arm64: Don't evaluate HCR_EL2.NV nor HFGITR_EL2.ERET on ERET fast path Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 08/29] arm64: Add ARM64_HAS_NV2P1 capability Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 09/29] KVM: arm64: Relax CPTR_EL2 handling when FEAT_NV2p1 is present Marc Zyngier
2026-07-30 7:56 ` sashiko-bot
2026-07-30 7:10 ` [PATCH v4 10/29] KVM: arm64: Relax CNTHCTL_EL2 " Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 11/29] KVM: arm64: Expose FEAT_NV2p1 to NV guests Marc Zyngier
2026-07-30 8:09 ` sashiko-bot
2026-07-30 7:10 ` [PATCH v4 12/29] arm64: Add FEAT_NV2p1 detection Marc Zyngier
2026-07-30 7:10 ` Marc Zyngier [this message]
2026-07-30 7:10 ` [PATCH v4 14/29] arm64: sysreg: Add HCRX_EL2 bits related to FEAT_NV3 Marc Zyngier
2026-07-30 7:40 ` sashiko-bot
2026-07-30 7:48 ` Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 15/29] arm64: Add ARM64_HAS_NV3 capability Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 16/29] KVM: arm64: Split NV-specific exit fixups from the non-NV handling Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 17/29] KVM: arm64: Add NV3 control bits to HCRX_EL2 sanitisation Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 18/29] KVM: arm64: Add kvm_has_nv{2,3}() predicates Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 19/29] KVM: arm64: Make HCR_EL2 a non-VNCR register Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 20/29] KVM: arm64: Add sanitisation for NVHCR_EL2 Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 21/29] KVM: arm64: Add NVHCR_EL2 handling to the sysreg array Marc Zyngier
2026-07-30 7:58 ` sashiko-bot
2026-07-30 7:10 ` [PATCH v4 22/29] KVM: arm64: Add routing for NVHCR_EL2 trap Marc Zyngier
2026-07-30 8:12 ` sashiko-bot
2026-07-30 7:10 ` [PATCH v4 23/29] KVM: arm64: Add NVHCR_EL2 context switching Marc Zyngier
2026-07-30 8:05 ` sashiko-bot
2026-07-30 7:10 ` [PATCH v4 24/29] KVM: arm64: Engage NV3 ERET trap elision Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 25/29] KVM: arm64: Engage NV3 TLBI " Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 26/29] KVM: arm64: Add FEAT_NV3 detection Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 27/29] KVM: arm64: Expose FEAT_NV3 to guests Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 28/29] KVM: arm64: selftest: Add NVHCR_EL2 to get-reg-list Marc Zyngier
2026-07-30 7:10 ` [PATCH v4 29/29] arm64: Add override for ID_AA64MMFR4_EL1.NV_frac Marc Zyngier
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