From patchwork Mon Jan 25 12:26:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Zyngier X-Patchwork-Id: 12043325 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36232C433DB for ; Mon, 25 Jan 2021 12:29:56 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C9FB72310A for ; Mon, 25 Jan 2021 12:29:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C9FB72310A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject: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=eNzCJSlgeNyNgSFnGYnTzYWFtu3UQSbsD+bJGTbD0Fc=; b=f5fc9LKtGqYNO5d8jamnSRhOWX 8s1lIIn4qnn441GbaDy7I2gyQmQoBzxHnQklzOwNMDFpQANmY+qYxoKwgc8LZoZH0Us25OanDhxtm HkROnDdYEclK0QDWdsQOmzFXAFjA83QLDIPoBf+Jb0ckkPE7Y0uWDuxcc0ayVnpickjNVDliIy632 uGwWZskjmOHC+s8OIM9Ef4A1otxlEoGBAeTv/oV7ufcWbvqegnMhLmAinl9T9i807hl2ABI3Bj0GS of+Cgub9zKueiwl7nfjI8xRhEd0mWZh+aEhZnL0rOJtTdbUFX+IzpOUQgqjIfm6QULM9SLYgToMbb qDKEgmPA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l40xF-0007Kc-Or; Mon, 25 Jan 2021 12:26:49 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l40xA-0007Ho-FY for linux-arm-kernel@lists.infradead.org; Mon, 25 Jan 2021 12:26:45 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B2D6D22597; Mon, 25 Jan 2021 12:26:43 +0000 (UTC) Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1l40x7-009sBu-G0; Mon, 25 Jan 2021 12:26:41 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH v2 0/7] KVM: arm64: More PMU/debug ID register fixes Date: Mon, 25 Jan 2021 12:26:31 +0000 Message-Id: <20210125122638.2947058-1-maz@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, alexandru.elisei@arm.com, eric.auger@redhat.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-20210125_072644_619438_4FE9004E X-CRM114-Status: GOOD ( 14.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Suzuki K Poulose , kernel-team@android.com, Eric Auger , James Morse , Alexandru Elisei , Julien Thierry Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is a respin of a series I posted in the 5.7 time frame, and completely forgot about it until I noticed again that a few things where not what I remembered... Given how long it has been, I'm pretending this is all new work. Anyway, this covers a few gaps in our ID register handling for PMU and Debug, plus the upgrade of the PMU support to 8.4 when possible. I don't plan to take this into 5.11, but this is a likely candidate for 5.12. Note that this conflicts with fixes that are on their way to 5.11. I'll probably end-up dragging the fixes into 5.12 to solve it. * From v1 [1]: - Upgrade AArch32 to PMUv8.4 if possible - Don't advertise STALL_SLOT when advertising PMU 8.4 - Add an extra patch replacing raw values for the PMU version with the already existing symbolaic values [1] https://lore.kernel.org/r/20210114105633.2558739-1-maz@kernel.org Marc Zyngier (7): KVM: arm64: Fix missing RES1 in emulation of DBGBIDR KVM: arm64: Fix AArch32 PMUv3 capping KVM: arm64: Add handling of AArch32 PCMEID{2,3} PMUv3 registers KVM: arm64: Refactor filtering of ID registers KVM: arm64: Limit the debug architecture to ARMv8.0 KVM: arm64: Upgrade PMU support to ARMv8.4 KVM: arm64: Use symbolic names for the PMU versions arch/arm64/include/asm/sysreg.h | 3 ++ arch/arm64/kvm/pmu-emul.c | 14 ++++-- arch/arm64/kvm/sys_regs.c | 79 ++++++++++++++++++++------------- 3 files changed, 61 insertions(+), 35 deletions(-)