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 42155C433F5 for ; Mon, 29 Nov 2021 21:07:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nHdV9niqUv3Oc5b8EZKVIpqQHljOAr6A7Y/hzVpL3ec=; b=L68lrHMhtMZMi2 2u03IhHcDLottxOXGUxRrqOeuCPSGg7vDtaGnWoDBNtuoOB2Jk3ZdAkw1VuX36H9Mg2a4YjAAz4Xz kFEmpkgOwtx2HWwlS48MG5OUzz1uI/LilpH/1nG8V0DgaN1RvF1dIyuYJMx4yAU22cpFBr9sBh1Z9 CNRvHgljAZWy4fvojykirhS9oJfrr5HL3TOQarC36T+DYy5QRupcJHssFduxHxUbdf3WdKTlA74c5 wNYYDDXk17MQbnK+s5fEmfV+CuMDVvwxfaoZHWwxY0X4b+I3DpfdWbvmt9rh5ad7xUekNIAWK/JOh cc3CiW3NkZ+vbcNjNg2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrnqU-002bEt-Ds; Mon, 29 Nov 2021 21:05:55 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mrmwM-002FZH-J2 for linux-arm-kernel@lists.infradead.org; Mon, 29 Nov 2021 20:07:56 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 16D52B8163A; Mon, 29 Nov 2021 20:07:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C19B3C53FCD; Mon, 29 Nov 2021 20:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638216472; bh=0ZrEv8b2Hv1ieoyvth57uqiT5TKdSAV9jYm5QmTCATA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FmHjcbQKxlNggiDIPP1qU4HA8D+B0bA245z1JOifpB4c+qScY12exHd/HxhAKe5r6 j56161/CRZ8OCyauOVFn3DmGFl0QUt/jLO3gGUdOCJN+c0F0S326lSw1Q3Wz0Auq8p hQuaitNhb4B3vMjlp3mdHMgkYWGc4DVcFVqExpJAnonoZBhgdXrXmOkaQcT9tdhObg fFqK8gmejLcDF6DxHV0SNPb9a7shS/fgpINpkaTggu7R4TmTfO1Yu2V6ljM2soQAfg NetSF5pJiXH2i39fu2oLpsQWsYDllTMn0YX8+ofKkozKY4/RRIi84P/Fp53XAXRD/a NVJl7ejAaUcgA== Received: from sofa.misterjones.org ([185.219.108.64] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1mrmr9-008gvR-OD; Mon, 29 Nov 2021 20:02:32 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: Andre Przywara , Christoffer Dall , Jintack Lim , Haibo Xu , Ganapatrao Kulkarni , James Morse , Suzuki K Poulose , Alexandru Elisei , kernel-team@android.com Subject: [PATCH v5 50/69] KVM: arm64: nv: Load timer before the GIC Date: Mon, 29 Nov 2021 20:01:31 +0000 Message-Id: <20211129200150.351436-51-maz@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211129200150.351436-1-maz@kernel.org> References: <20211129200150.351436-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, andre.przywara@arm.com, christoffer.dall@arm.com, jintack@cs.columbia.edu, haibo.xu@linaro.org, gankulkarni@os.amperecomputing.com, james.morse@arm.com, suzuki.poulose@arm.com, alexandru.elisei@arm.com, kernel-team@android.com 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-20211129_120754_833277_050E4963 X-CRM114-Status: GOOD ( 15.66 ) 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 In order for vgic_v3_load_nested to be able to observe which timer interrupts have the HW bit set for the current context, the timers must have been loaded in the new mode and the right timer mapped to their corresponding HW IRQs. At the moment, we load the GIC first, meaning that timer interrupts injected to an L2 guest will never have the HW bit set (we see the old configuration). Swapping the two loads solves this particular problem. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/arm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 1dbf63319b99..b04616bf1839 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -414,8 +414,8 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) vcpu->cpu = cpu; - kvm_vgic_load(vcpu); kvm_timer_vcpu_load(vcpu); + kvm_vgic_load(vcpu); if (has_vhe()) kvm_vcpu_load_sysregs_vhe(vcpu); kvm_arch_vcpu_load_fp(vcpu); -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel