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From: Zenghui Yu <zenghui.yu@linux.dev>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Cc: maz@kernel.org, oupton@kernel.org, joey.gouly@arm.com,
	suzuki.poulose@arm.com, zenghui.yu@linux.dev,
	wanghaibin.wang@huawei.com
Subject: [PATCH] KVM: arm64: nv: Add trap config for DBGWCR<15>_EL1
Date: Fri, 30 Jan 2026 17:44:35 +0800	[thread overview]
Message-ID: <20260130094435.39942-1-zenghui.yu@linux.dev> (raw)

From: "Zenghui Yu (Huawei)" <zenghui.yu@linux.dev>

Seems that it was missed when MDCR_EL2 was first added to the trap
forwarding infrastructure. Add it back.

Fixes: cb31632c4452 ("KVM: arm64: nv: Add trap forwarding for MDCR_EL2")
Signed-off-by: Zenghui Yu (Huawei) <zenghui.yu@linux.dev>
---
 arch/arm64/kvm/emulate-nested.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c
index 834f13fb1fb7..34a5460adaf0 100644
--- a/arch/arm64/kvm/emulate-nested.c
+++ b/arch/arm64/kvm/emulate-nested.c
@@ -1166,6 +1166,7 @@ static const struct encoding_to_trap_config encoding_to_cgt[] __initconst = {
 	SR_TRAP(SYS_DBGWCRn_EL1(12),	CGT_MDCR_TDE_TDA),
 	SR_TRAP(SYS_DBGWCRn_EL1(13),	CGT_MDCR_TDE_TDA),
 	SR_TRAP(SYS_DBGWCRn_EL1(14),	CGT_MDCR_TDE_TDA),
+	SR_TRAP(SYS_DBGWCRn_EL1(15),	CGT_MDCR_TDE_TDA),
 	SR_TRAP(SYS_DBGCLAIMSET_EL1,	CGT_MDCR_TDE_TDA),
 	SR_TRAP(SYS_DBGCLAIMCLR_EL1,	CGT_MDCR_TDE_TDA),
 	SR_TRAP(SYS_DBGAUTHSTATUS_EL1,	CGT_MDCR_TDE_TDA),
-- 
2.34.1


             reply	other threads:[~2026-01-30  9:44 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-30  9:44 Zenghui Yu [this message]
2026-01-30 10:00 ` [PATCH] KVM: arm64: nv: Add trap config for DBGWCR<15>_EL1 Marc Zyngier

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