[PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts

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From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Ricardo Koller <ricarkol@google.com>,
	Simon Veith <sveith@amazon.de>,
	dwmw2@infradead.org
Subject: [PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts
Date: Thu, 16 Feb 2023 14:21:23 +0000	[thread overview]
Message-ID: <20230216142123.2638675-17-maz@kernel.org> (raw)
In-Reply-To: <20230216142123.2638675-1-maz@kernel.org>

Make sure the timer test can properly handle a spurious timer
interrupt, something that is far from being unlikely.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 tools/testing/selftests/kvm/aarch64/arch_timer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c
index 62af0e7d10b4..3f6f0bfa68a2 100644
--- a/tools/testing/selftests/kvm/aarch64/arch_timer.c
+++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c
@@ -158,6 +158,9 @@ static void guest_irq_handler(struct ex_regs *regs)
 	uint32_t cpu = guest_get_vcpuid();
 	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
 
+	if (intid == IAR_SPURIOUS)
+		return;
+
 	guest_validate_irq(intid, shared_data);
 
 	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
-- 
2.34.1

WARNING: multiple messages have this Message-ID (diff)

From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Ricardo Koller <ricarkol@google.com>,
	Simon Veith <sveith@amazon.de>,
	dwmw2@infradead.org
Subject: [PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts
Date: Thu, 16 Feb 2023 14:21:23 +0000	[thread overview]
Message-ID: <20230216142123.2638675-17-maz@kernel.org> (raw)
In-Reply-To: <20230216142123.2638675-1-maz@kernel.org>

Make sure the timer test can properly handle a spurious timer
interrupt, something that is far from being unlikely.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 tools/testing/selftests/kvm/aarch64/arch_timer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/kvm/aarch64/arch_timer.c b/tools/testing/selftests/kvm/aarch64/arch_timer.c
index 62af0e7d10b4..3f6f0bfa68a2 100644
--- a/tools/testing/selftests/kvm/aarch64/arch_timer.c
+++ b/tools/testing/selftests/kvm/aarch64/arch_timer.c
@@ -158,6 +158,9 @@ static void guest_irq_handler(struct ex_regs *regs)
 	uint32_t cpu = guest_get_vcpuid();
 	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
 
+	if (intid == IAR_SPURIOUS)
+		return;
+
 	guest_validate_irq(intid, shared_data);
 
 	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
-- 
2.34.1


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next prev parent reply	other threads:[~2023-02-16 14:31 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-16 14:21 [PATCH 00/16] KVM: arm64: Rework timer offsetting for fun and profit Marc Zyngier
2023-02-16 14:21 ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 01/16] arm64: Add CNTPOFF_EL2 register definition Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 02/16] arm64: Add HAS_ECV_CNTPOFF capability Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-22  4:30   ` Reiji Watanabe
2023-02-22  4:30     ` Reiji Watanabe
2023-02-22 10:47     ` Marc Zyngier
2023-02-22 10:47       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 03/16] kvm: arm64: Expose {un,}lock_all_vcpus() to the reset of KVM Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-23 22:30   ` Colton Lewis
2023-02-23 22:30     ` Colton Lewis
2023-02-16 14:21 ` [PATCH 04/16] KVM: arm64: timers: Use a per-vcpu, per-timer accumulator for fractional ns Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-23 22:30   ` Colton Lewis
2023-02-23 22:30     ` Colton Lewis
2023-02-16 14:21 ` [PATCH 05/16] KVM: arm64: timers: Convert per-vcpu virtual offset to a global value Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-22  6:15   ` Reiji Watanabe
2023-02-22  6:15     ` Reiji Watanabe
2023-02-22 10:54     ` Marc Zyngier
2023-02-22 10:54       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 06/16] KVM: arm64: timers: Use CNTPOFF_EL2 to offset the physical timer Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-23 22:34   ` Colton Lewis
2023-02-23 22:34     ` Colton Lewis
2023-02-24  8:59     ` Marc Zyngier
2023-02-24  8:59       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 07/16] KVM: arm64: timers: Allow physical offset without CNTPOFF_EL2 Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-23 22:40   ` Colton Lewis
2023-02-23 22:40     ` Colton Lewis
2023-02-24 10:54     ` Marc Zyngier
2023-02-24 10:54       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 08/16] KVM: arm64: timers: Allow userspace to set the counter offsets Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 22:09   ` Oliver Upton
2023-02-16 22:09     ` Oliver Upton
2023-02-17 10:17     ` Marc Zyngier
2023-02-17 10:17       ` Marc Zyngier
2023-02-17 22:11       ` Oliver Upton
2023-02-17 22:11         ` Oliver Upton
2023-02-22 11:56         ` Marc Zyngier
2023-02-22 11:56           ` Marc Zyngier
2023-02-22 16:34           ` Oliver Upton
2023-02-22 16:34             ` Oliver Upton
2023-02-23 18:25             ` Marc Zyngier
2023-02-23 18:25               ` Marc Zyngier
2023-03-08  7:46               ` Oliver Upton
2023-03-08  7:46                 ` Oliver Upton
2023-03-08  7:53                 ` Oliver Upton
2023-03-08  7:53                   ` Oliver Upton
2023-03-09  8:29                   ` Marc Zyngier
2023-03-09  8:29                     ` Marc Zyngier
2023-03-09  8:25                 ` Marc Zyngier
2023-03-09  8:25                   ` Marc Zyngier
2023-02-23 22:41   ` Colton Lewis
2023-02-23 22:41     ` Colton Lewis
2023-02-24 11:24     ` Marc Zyngier
2023-02-24 11:24       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 09/16] KVM: arm64: timers: Allow save/restoring of the physical timer Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 10/16] KVM: arm64: timers: Rationalise per-vcpu timer init Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 11/16] KVM: arm64: Document KVM_ARM_SET_CNT_OFFSETS and co Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 12/16] KVM: arm64: nv: timers: Add a per-timer, per-vcpu offset Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-24 20:07   ` Colton Lewis
2023-02-24 20:07     ` Colton Lewis
2023-02-25 10:32     ` Marc Zyngier
2023-02-25 10:32       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 13/16] KVM: arm64: nv: timers: Support hyp timer emulation Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-24 20:08   ` Colton Lewis
2023-02-24 20:08     ` Colton Lewis
2023-02-25 10:34     ` Marc Zyngier
2023-02-25 10:34       ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 14/16] KVM: arm64: selftests: Add physical timer registers to the sysreg list Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-02-16 14:21 ` [PATCH 15/16] KVM: arm64: selftests: Augment existing timer test to handle variable offsets Marc Zyngier
2023-02-16 14:21   ` Marc Zyngier
2023-03-06 22:08   ` Colton Lewis
2023-03-06 22:08     ` Colton Lewis
2023-03-09  9:01     ` Marc Zyngier
2023-03-09  9:01       ` Marc Zyngier
2023-03-10 19:26       ` Colton Lewis
2023-03-10 19:26         ` Colton Lewis
2023-03-12 15:53         ` Marc Zyngier
2023-03-12 15:53           ` Marc Zyngier
2023-03-13 11:43         ` Marc Zyngier
2023-03-13 11:43           ` Marc Zyngier
2023-03-14 17:47           ` Colton Lewis
2023-03-14 17:47             ` Colton Lewis
2023-03-14 18:18             ` Marc Zyngier
2023-03-14 18:18               ` Marc Zyngier
2023-02-16 14:21 ` Marc Zyngier [this message]
2023-02-16 14:21   ` [PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts Marc Zyngier
2023-02-21 16:28 ` [PATCH 00/16] KVM: arm64: Rework timer offsetting for fun and profit Veith, Simon
2023-02-21 16:28   ` Veith, Simon
2023-02-21 22:17   ` Marc Zyngier
2023-02-21 22:17     ` Marc Zyngier
2023-02-23 22:29 ` Colton Lewis
2023-02-23 22:29   ` Colton Lewis
2023-02-24  8:45   ` Marc Zyngier
2023-02-24  8:45     ` Marc Zyngier
2023-02-24 20:07 ` Colton Lewis
2023-02-24 20:07   ` Colton Lewis

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:62af0e7d10b dfblob:3f6f0bfa68a dfblob:62af0e7d10b
dfblob:3f6f0bfa68a )
 OR (
bs:"[PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts" )
	(help)

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