From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB57AD31D for ; Thu, 16 Feb 2023 14:31:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 814C1C433EF; Thu, 16 Feb 2023 14:31:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676557875; bh=AXe3+d84n0T3lT9bC+GGjquzOfxEYZEi3/W6fF4dWR4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WmWGv3+ZvoZ/CXpnluQ71vpkUpvqIFAOrD+mKmHhM5tmjZrg96OmNh65Ix3dvaPk6 VTiAPH4vdU1GP3ZWaVsOx16wDzAdqn5oqIAjbdpQvB28QPqteK9vj1ucqqXn1yK7bp tylTyK72AcEh4ysEHijUbfJ8CWuSvDkwFjrz9jMkt7kCepOrSMIoVB2hWENv+TYKtt 402lm3eq6miyxOl5MkxzHcr3ZZlEXowp3f0R0FJ7ebm9ZJbzJhFQcWvLZlSQcstTnf UbPAUwVnpvQgeCzJBGf/HtBhUReN49y9oRF9sY1oZjG06hBL/46pcDYUOFXkEKOOTV m2tyCJcgzPCzw== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1pSf8w-00AuwB-Tr; Thu, 16 Feb 2023 14:21:50 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Ricardo Koller , Simon Veith , dwmw2@infradead.org Subject: [PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts Date: Thu, 16 Feb 2023 14:21:23 +0000 Message-Id: <20230216142123.2638675-17-maz@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230216142123.2638675-1-maz@kernel.org> References: <20230216142123.2638675-1-maz@kernel.org> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, ricarkol@google.com, sveith@amazon.de, dwmw2@infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Make sure the timer test can properly handle a spurious timer interrupt, something that is far from being unlikely. Signed-off-by: Marc Zyngier --- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3295DC61DA4 for ; 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Thu, 16 Feb 2023 14:21:50 +0000 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu , Ricardo Koller , Simon Veith , dwmw2@infradead.org Subject: [PATCH 16/16] KVM: arm64: selftests: Deal with spurious timer interrupts Date: Thu, 16 Feb 2023 14:21:23 +0000 Message-Id: <20230216142123.2638675-17-maz@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230216142123.2638675-1-maz@kernel.org> References: <20230216142123.2638675-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.com, ricarkol@google.com, sveith@amazon.de, dwmw2@infradead.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230216_063116_787716_B289046D X-CRM114-Status: GOOD ( 11.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 --- 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel