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 97111C001E0 for ; Tue, 15 Aug 2023 18:39:55 +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: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:In-Reply-To:References: List-Owner; bh=5aJ34iGEMcVIyx3hd+tsEG7R4McG2nfh0j+GKbKMjuk=; b=B0TzhJUklGX6az Y5twamRMDxaHJjin/8jVOEc02EkSaq0eAB7VYAjTxZATyck3XFU6eKeXDk1jDdz04U6E1XK8wAmsR uWTDXlqEJU4T6/FIbtawgHJjEqHcnGD7VnOWxBRvsF2r/I0KP2Au2zsSCDQRDr/2Ptza0WuZAh6xn fgxo4TIxehTJfJ2Zclm6AqpZIHnHYyr+XdoBOO7gCEfWYn3bY2/N6xdgO0UWwDRxm6iHOrEeRz3bz +2USXhPVuU9SKEv2r1AEmGycAQ5ckVV3iRmN1qZZ/XDuTh5BPd7oU970zCIC9TnSfSGw0IBZEYI/3 pJZN+c/Tl03Wma/dQ8UA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qVywt-002BQM-0I; Tue, 15 Aug 2023 18:39:23 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qVywp-002BMl-07 for linux-arm-kernel@lists.infradead.org; Tue, 15 Aug 2023 18:39:20 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 499F465DFC; Tue, 15 Aug 2023 18:39:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ABD2EC433CD; Tue, 15 Aug 2023 18:39:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692124757; bh=xu2YUU/jhCrfFKtk8h109BurYyIVdb/eaTfJtVK+xwA=; h=From:To:Cc:Subject:Date:From; b=ZAwEoAqVZH1zbVRFL/o1HlhmOTHOll88NEnfZL1cMoHDvQ+wevxObeEqAuv/lr6sQ mc+OK6idQz9wtor4EyOva8wwzE4NLMYbZs035yolC0rtFz+eYBZLfTQ7qnxJBz7NZj zOYe4KW/BQqp9FuG0dY/agsPVL97nxsi3Pdlne/XTEJ4/yNFF+qMcSAbrN5ujsVsOq 5V1N22CFM+S4AnyqQoOphWkzuQ465jdOYu7wGzKkpEeRp89Aj0GnWihQVDcgDzoQLs Z5/ks2ZQjGJwPzC11p15mkWUVju2QUm7BylYe9OkQ/Dl3aiLY0pxwBfe8UqJdeRxb0 h7s/CjBn7wD8A== 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 1qVywk-0055Sd-Cb; Tue, 15 Aug 2023 19:39:15 +0100 From: Marc Zyngier To: kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Catalin Marinas , Eric Auger , Mark Brown , Mark Rutland , Will Deacon , Alexandru Elisei , Andre Przywara , Chase Conklin , Ganapatrao Kulkarni , Darren Hart , Miguel Luis , Jing Zhang , James Morse , Suzuki K Poulose , Oliver Upton , Zenghui Yu Subject: [PATCH v4 00/28] KVM: arm64: NV trap forwarding infrastructure Date: Tue, 15 Aug 2023 19:38:34 +0100 Message-Id: <20230815183903.2735724-1-maz@kernel.org> X-Mailer: git-send-email 2.34.1 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, catalin.marinas@arm.com, eric.auger@redhat.com, broonie@kernel.org, mark.rutland@arm.com, will@kernel.org, alexandru.elisei@arm.com, andre.przywara@arm.com, chase.conklin@arm.com, gankulkarni@os.amperecomputing.com, darren@os.amperecomputing.com, miguel.luis@oracle.com, jingzhangos@google.com, james.morse@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, yuzenghui@huawei.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-20230815_113919_164275_8D331242 X-CRM114-Status: GOOD ( 15.08 ) 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 Another week, another version. Change log below. I'll drop this into -next now, and see what happens. * From v3 [3]: - Renamed trap_group to cgt_group_id (Eric) - Plenty of comment rework (Eric) - Fix HCR_EL2.FIEN handling (Miguel) - Fix missing validation of last MCB entry (Miguel) - Fix instance of recursive MCB (Jing) - Handle error return from xa_store()/xa_range_store() (Jing) - Propagate error generated from populate_nv_trap_config() (Jing) - Added more consistency checks for sysregs and trap bits - Added a line number entry, which is useful for debugging overlapping entries. - Fixed duplicate entries for SP_EL1, DBGDTRRX_EL0 and SCXTNUM_EL0 - Correctly handle fine grained trapping for ERET - Collected RBs, with thanks * From v2 [2]: - Another set up fixups thanks to Oliver, Eric and Miguel: TRCID bits, duplicate encodings, sanity checking, error handling at boot time, spelling mistakes... - Split the HFGxTR_EL2 patch in two patches: one that provides the FGT infrastructure, and one that provides the HFGxTR_EL2 traps. It makes it easier to review and matches the rest of the series. - Collected RBs, with thanks * From v1 [1]: - Lots of fixups all over the map (too many to mention) after Eric's fantastic reviewing effort. Hopefully the result is easier to understand and less wrong - Amended Mark's patch to use the ARM64_CPUID_FIELDS() macro - Collected RBs, with thanks. [1] https://lore.kernel.org/all/20230712145810.3864793-1-maz@kernel.org [2] https://lore.kernel.org/all/20230728082952.959212-1-maz@kernel.org [3] https://lore.kernel.org/all/20230808114711.2013842-1-maz@kernel.org Marc Zyngier (27): arm64: Add missing VA CMO encodings arm64: Add missing ERX*_EL1 encodings arm64: Add missing DC ZVA/GVA/GZVA encodings arm64: Add TLBI operation encodings arm64: Add AT operation encodings arm64: Add debug registers affected by HDFGxTR_EL2 arm64: Add missing BRB/CFP/DVP/CPP instructions arm64: Add HDFGRTR_EL2 and HDFGWTR_EL2 layouts KVM: arm64: Correctly handle ACCDATA_EL1 traps KVM: arm64: Add missing HCR_EL2 trap bits KVM: arm64: nv: Add FGT registers KVM: arm64: Restructure FGT register switching KVM: arm64: nv: Add trap forwarding infrastructure KVM: arm64: nv: Add trap forwarding for HCR_EL2 KVM: arm64: nv: Expose FEAT_EVT to nested guests KVM: arm64: nv: Add trap forwarding for MDCR_EL2 KVM: arm64: nv: Add trap forwarding for CNTHCTL_EL2 KVM: arm64: nv: Add fine grained trap forwarding infrastructure KVM: arm64: nv: Add trap forwarding for HFGxTR_EL2 KVM: arm64: nv: Add trap forwarding for HFGITR_EL2 KVM: arm64: nv: Add trap forwarding for HDFGxTR_EL2 KVM: arm64: nv: Add SVC trap forwarding KVM: arm64: nv: Expand ERET trap forwarding to handle FGT KVM: arm64: nv: Add switching support for HFGxTR/HDFGxTR KVM: arm64: nv: Expose FGT to nested guests KVM: arm64: Move HCRX_EL2 switch to load/put on VHE systems KVM: arm64: nv: Add support for HCRX_EL2 Mark Brown (1): arm64: Add feature detection for fine grained traps arch/arm64/include/asm/kvm_arm.h | 50 + arch/arm64/include/asm/kvm_host.h | 7 + arch/arm64/include/asm/kvm_nested.h | 2 + arch/arm64/include/asm/sysreg.h | 268 +++- arch/arm64/kernel/cpufeature.c | 7 + arch/arm64/kvm/arm.c | 4 + arch/arm64/kvm/emulate-nested.c | 1850 +++++++++++++++++++++++ arch/arm64/kvm/handle_exit.c | 29 +- arch/arm64/kvm/hyp/include/hyp/switch.h | 127 +- arch/arm64/kvm/nested.c | 11 +- arch/arm64/kvm/sys_regs.c | 15 + arch/arm64/kvm/trace_arm.h | 26 + arch/arm64/tools/cpucaps | 1 + arch/arm64/tools/sysreg | 129 ++ 14 files changed, 2485 insertions(+), 41 deletions(-) -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel