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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: maz@kernel.org, mathieu.poirier@linaro.org
Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, anshuman.khandual@arm.com,
	mike.leach@linaro.org, catalin.marinas@arm.com, will@kernel.org,
	peterz@infradead.org, leo.yan@linaro.org, robh@kernel.org,
	Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v6 05/20] kvm: arm64: Handle access to TRFCR_EL1
Date: Mon,  5 Apr 2021 17:42:52 +0100	[thread overview]
Message-ID: <20210405164307.1720226-6-suzuki.poulose@arm.com> (raw)
In-Reply-To: <20210405164307.1720226-1-suzuki.poulose@arm.com>

Rather than falling to an "unhandled access", inject add an explicit
"undefined access" for TRFCR_EL1 access from the guest.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
 arch/arm64/kvm/sys_regs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4f2f1e3145de..52fdb9a015a4 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1472,6 +1472,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	{ SYS_DESC(SYS_GCR_EL1), undef_access },
 
 	{ SYS_DESC(SYS_ZCR_EL1), NULL, reset_val, ZCR_EL1, 0, .visibility = sve_visibility },
+	{ SYS_DESC(SYS_TRFCR_EL1), undef_access },
 	{ SYS_DESC(SYS_TTBR0_EL1), access_vm_reg, reset_unknown, TTBR0_EL1 },
 	{ SYS_DESC(SYS_TTBR1_EL1), access_vm_reg, reset_unknown, TTBR1_EL1 },
 	{ SYS_DESC(SYS_TCR_EL1), access_vm_reg, reset_val, TCR_EL1, 0 },
-- 
2.24.1


  parent reply	other threads:[~2021-04-05 16:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05 16:42 [PATCH v6 00/20] coresight: Add support for ETE and TRBE Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 01/20] perf: aux: Add flags for the buffer format Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 02/20] perf: aux: Add CoreSight PMU buffer formats Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 03/20] arm64: Add support for trace synchronization barrier Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 04/20] arm64: Add TRBE definitions Suzuki K Poulose
2021-04-05 16:42 ` Suzuki K Poulose [this message]
2021-04-05 16:42 ` [PATCH v6 06/20] kvm: arm64: Move SPE availability check to VCPU load Suzuki K Poulose
2021-04-08 15:14   ` Alexandru Elisei
2021-04-05 16:42 ` [PATCH v6 07/20] arm64: kvm: Enable access to TRBE support for host Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 08/20] coresight: etm4x: Move ETM to prohibited region for disable Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 09/20] coresight: etm-perf: Allow an event to use different sinks Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 10/20] coresight: Do not scan for graph if none is present Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 11/20] coresight: etm4x: Add support for PE OS lock Suzuki K Poulose
2021-04-05 16:42 ` [PATCH v6 12/20] coresight: ete: Add support for ETE sysreg access Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 13/20] coresight: ete: Add support for ETE tracing Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 14/20] dts: bindings: Document device tree bindings for ETE Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 15/20] coresight: etm-perf: Handle stale output handles Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 16/20] coresight: core: Add support for dedicated percpu sinks Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 17/20] coresight: sink: Add TRBE driver Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 18/20] Documentation: coresight: trbe: Sysfs ABI description Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 19/20] Documentation: trace: Add documentation for TRBE Suzuki K Poulose
2021-04-05 16:43 ` [PATCH v6 20/20] dts: bindings: Document device tree bindings for Arm TRBE Suzuki K Poulose

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