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From: Marc Zyngier <marc.zyngier@arm.com>
To: Christoffer Dall <christoffer.dall@linaro.org>
Cc: kvm@vger.kernel.org, David Daney <david.daney@cavium.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Robert Richter <rrichter@cavium.com>,
	kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 25/25] KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped
Date: Thu,  1 Jun 2017 11:21:17 +0100	[thread overview]
Message-ID: <20170601102117.17750-26-marc.zyngier@arm.com> (raw)
In-Reply-To: <20170601102117.17750-1-marc.zyngier@arm.com>

In order to facilitate debug, let's log which class of GICv3 system
registers are trapped.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 virt/kvm/arm/vgic/vgic-v3.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c
index 636f1258d217..e0b530f4b1e6 100644
--- a/virt/kvm/arm/vgic/vgic-v3.c
+++ b/virt/kvm/arm/vgic/vgic-v3.c
@@ -499,7 +499,10 @@ int vgic_v3_probe(const struct gic_kvm_info *info)
 #endif
 
 	if (group0_trap || group1_trap || common_trap) {
-		kvm_info("GICv3 sysreg trapping enabled (reduced performance)\n");
+		kvm_info("GICv3 sysreg trapping enabled ([%s%s%s], reduced performance)\n",
+			 group0_trap ? "G0" : "",
+			 group1_trap ? "G1" : "",
+			 common_trap ? "C"  : "");
 		static_branch_enable(&vgic_v3_cpuif_trap);
 	}
 
-- 
2.11.0

  parent reply	other threads:[~2017-06-01 10:21 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-01 10:20 [PATCH v2 00/25] arm64: KVM: Mediate access to GICv3 sysregs at EL2 Marc Zyngier
2017-06-01 10:20 ` [PATCH v2 01/25] arm64: Add a facility to turn an ESR syndrome into a sysreg encoding Marc Zyngier
2017-06-01 10:20 ` [PATCH v2 02/25] KVM: arm/arm64: vgic-v3: Add accessors for the ICH_APxRn_EL2 registers Marc Zyngier
2017-06-01 10:20 ` [PATCH v2 03/25] KVM: arm64: Make kvm_condition_valid32() accessible from EL2 Marc Zyngier
2017-06-04 12:11   ` Christoffer Dall
2017-06-05  8:13     ` Marc Zyngier
2017-06-05  8:23       ` Christoffer Dall
2017-06-05  9:10         ` Marc Zyngier
2017-06-01 10:20 ` [PATCH v2 04/25] KVM: arm64: vgic-v3: Add hook to handle guest GICv3 sysreg accesses at EL2 Marc Zyngier
2017-06-04 14:59   ` Christoffer Dall
2017-06-01 10:20 ` [PATCH v2 05/25] KVM: arm64: vgic-v3: Add ICV_BPR1_EL1 handler Marc Zyngier
2017-06-04 20:25   ` Christoffer Dall
2017-06-05  9:58     ` Marc Zyngier
2017-06-05 10:16       ` Christoffer Dall
2017-06-05 10:27         ` Peter Maydell
2017-06-06  9:41       ` Christoffer Dall
2017-06-01 10:20 ` [PATCH v2 06/25] KVM: arm64: vgic-v3: Add ICV_IGRPEN1_EL1 handler Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:20 ` [PATCH v2 07/25] KVM: arm64: vgic-v3: Add ICV_IAR1_EL1 handler Marc Zyngier
2017-06-05  9:21   ` Christoffer Dall
2017-06-05 10:33     ` Marc Zyngier
2017-06-06 11:09       ` Christoffer Dall
2017-06-06 13:35         ` Marc Zyngier
2017-06-06 13:50           ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 08/25] KVM: arm64: vgic-v3: Add ICV_EOIR1_EL1 handler Marc Zyngier
2017-06-05 10:32   ` Christoffer Dall
2017-06-05 11:00     ` Marc Zyngier
2017-06-06 13:19       ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 09/25] KVM: arm64: vgic-v3: Add ICV_AP1Rn_EL1 handler Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 10/25] KVM: arm64: vgic-v3: Add ICV_HPPIR1_EL1 handler Marc Zyngier
2017-06-06 11:51   ` Christoffer Dall
2017-06-06 13:57     ` Marc Zyngier
2017-06-06 14:41       ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 11/25] KVM: arm64: vgic-v3: Enable trapping of Group-1 system registers Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 12/25] KVM: arm64: Enable GICv3 Group-1 sysreg trapping via command-line Marc Zyngier
2017-06-06 12:06   ` Christoffer Dall
2017-06-06 13:59     ` Marc Zyngier
2017-06-06 14:42       ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 13/25] KVM: arm64: vgic-v3: Add ICV_BPR0_EL1 handler Marc Zyngier
2017-06-06 12:11   ` Christoffer Dall
2017-06-06 15:15     ` Marc Zyngier
2017-06-06 15:46       ` Christoffer Dall
2017-06-06 15:56         ` Peter Maydell
2017-06-06 16:56           ` Marc Zyngier
2017-06-06 17:23           ` Christoffer Dall
2017-06-06 17:36             ` Peter Maydell
2017-06-01 10:21 ` [PATCH v2 14/25] KVM: arm64: vgic-v3: Add ICV_IGNREN0_EL1 handler Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 15/25] KVM: arm64: vgic-v3: Add misc Group-0 handlers Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 16/25] KVM: arm64: vgic-v3: Enable trapping of Group-0 system registers Marc Zyngier
2017-06-06 13:22   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 17/25] KVM: arm64: Enable GICv3 Group-0 sysreg trapping via command-line Marc Zyngier
2017-06-06 12:44   ` Christoffer Dall
2017-06-06 15:15     ` Marc Zyngier
2017-06-01 10:21 ` [PATCH v2 18/25] arm64: Add MIDR values for Cavium cn83XX SoCs Marc Zyngier
2017-06-01 10:21 ` [PATCH v2 19/25] arm64: Add workaround for Cavium Thunder erratum 30115 Marc Zyngier
2017-06-06 12:48   ` Christoffer Dall
2017-06-06 15:18     ` Marc Zyngier
2017-06-01 10:21 ` [PATCH v2 20/25] KVM: arm64: vgic-v3: Add ICV_DIR_EL1 handler Marc Zyngier
2017-06-06 12:59   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 21/25] KVM: arm64: vgic-v3: Add ICV_RPR_EL1 handler Marc Zyngier
2017-06-06 13:23   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 22/25] KVM: arm64: vgic-v3: Add ICV_CTLR_EL1 handler Marc Zyngier
2017-06-06 13:23   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 23/25] KVM: arm64: vgic-v3: Add ICV_PMR_EL1 handler Marc Zyngier
2017-06-06 13:23   ` Christoffer Dall
2017-06-01 10:21 ` [PATCH v2 24/25] KVM: arm64: Enable GICv3 common sysreg trapping via command-line Marc Zyngier
2017-06-01 10:21 ` Marc Zyngier [this message]
2017-06-06 13:23   ` [PATCH v2 25/25] KVM: arm64: vgic-v3: Log which GICv3 system registers are trapped Christoffer Dall
2017-06-01 21:00 ` [PATCH v2 00/25] arm64: KVM: Mediate access to GICv3 sysregs at EL2 David Daney
2017-06-02  9:11   ` Marc Zyngier
2017-06-02 16:24     ` David Daney
2017-06-08 14:35 ` Alexander Graf

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