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 X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, 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 2E3FCC433E9 for ; Thu, 14 Jan 2021 10:56:59 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id B04C523A59 for ; Thu, 14 Jan 2021 10:56:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B04C523A59 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 51F424B117; Thu, 14 Jan 2021 05:56:58 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1OXEBs7SLpTz; Thu, 14 Jan 2021 05:56:57 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 5388C4B1C8; Thu, 14 Jan 2021 05:56:56 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 745154B16F for ; Thu, 14 Jan 2021 05:56:54 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id r7wJwXySe-0y for ; Thu, 14 Jan 2021 05:56:53 -0500 (EST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 666744B08F for ; Thu, 14 Jan 2021 05:56:53 -0500 (EST) 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 7BA6E23A52; Thu, 14 Jan 2021 10:56:52 +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 1l00J8-007Tvz-Ny; Thu, 14 Jan 2021 10:56:50 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH 3/6] KVM: arm64: Add handling of AArch32 PCMEID{2, 3} PMUv3 registers Date: Thu, 14 Jan 2021 10:56:30 +0000 Message-Id: <20210114105633.2558739-4-maz@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210114105633.2558739-1-maz@kernel.org> References: <20210114105633.2558739-1-maz@kernel.org> 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 Cc: kernel-team@android.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Despite advertising support for AArch32 PMUv3p1, we fail to handle the PMCEID{2,3} registers, which conveniently alias with with the top bits of PMCEID{0,1}_EL1. Implement these registers with the usual AA32(HI/LO) aliasing mechanism. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/sys_regs.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index ce08d28ab15c..2bea0494b81d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -685,14 +685,18 @@ static bool access_pmselr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, static bool access_pmceid(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *r) { - u64 pmceid; + u64 pmceid, mask, shift; BUG_ON(p->is_write); if (pmu_access_el0_disabled(vcpu)) return false; + get_access_mask(r, &mask, &shift); + pmceid = kvm_pmu_get_pmceid(vcpu, (p->Op2 & 1)); + pmceid &= mask; + pmceid >>= shift; p->regval = pmceid; @@ -1895,8 +1899,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(12), Op2( 3), access_pmovs }, { Op1( 0), CRn( 9), CRm(12), Op2( 4), access_pmswinc }, { Op1( 0), CRn( 9), CRm(12), Op2( 5), access_pmselr }, - { Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, - { Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, { Op1( 0), CRn( 9), CRm(13), Op2( 0), access_pmu_evcntr }, { Op1( 0), CRn( 9), CRm(13), Op2( 1), access_pmu_evtyper }, { Op1( 0), CRn( 9), CRm(13), Op2( 2), access_pmu_evcntr }, @@ -1904,6 +1908,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(14), Op2( 1), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 2), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 3), access_pmovs }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 4), access_pmceid }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 5), access_pmceid }, /* PRRR/MAIR0 */ { AA32(LO), Op1( 0), CRn(10), CRm( 2), Op2( 0), access_vm_reg, NULL, MAIR_EL1 }, -- 2.29.2 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm 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 X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 34A34C433E0 for ; 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Thu, 14 Jan 2021 10:56:52 +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 1l00J8-007Tvz-Ny; Thu, 14 Jan 2021 10:56:50 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH 3/6] KVM: arm64: Add handling of AArch32 PCMEID{2, 3} PMUv3 registers Date: Thu, 14 Jan 2021 10:56:30 +0000 Message-Id: <20210114105633.2558739-4-maz@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210114105633.2558739-1-maz@kernel.org> References: <20210114105633.2558739-1-maz@kernel.org> 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-20210114_055653_336799_2A2682A4 X-CRM114-Status: GOOD ( 12.90 ) 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 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 Despite advertising support for AArch32 PMUv3p1, we fail to handle the PMCEID{2,3} registers, which conveniently alias with with the top bits of PMCEID{0,1}_EL1. Implement these registers with the usual AA32(HI/LO) aliasing mechanism. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/sys_regs.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index ce08d28ab15c..2bea0494b81d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -685,14 +685,18 @@ static bool access_pmselr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, static bool access_pmceid(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *r) { - u64 pmceid; + u64 pmceid, mask, shift; BUG_ON(p->is_write); if (pmu_access_el0_disabled(vcpu)) return false; + get_access_mask(r, &mask, &shift); + pmceid = kvm_pmu_get_pmceid(vcpu, (p->Op2 & 1)); + pmceid &= mask; + pmceid >>= shift; p->regval = pmceid; @@ -1895,8 +1899,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(12), Op2( 3), access_pmovs }, { Op1( 0), CRn( 9), CRm(12), Op2( 4), access_pmswinc }, { Op1( 0), CRn( 9), CRm(12), Op2( 5), access_pmselr }, - { Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, - { Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, { Op1( 0), CRn( 9), CRm(13), Op2( 0), access_pmu_evcntr }, { Op1( 0), CRn( 9), CRm(13), Op2( 1), access_pmu_evtyper }, { Op1( 0), CRn( 9), CRm(13), Op2( 2), access_pmu_evcntr }, @@ -1904,6 +1908,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(14), Op2( 1), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 2), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 3), access_pmovs }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 4), access_pmceid }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 5), access_pmceid }, /* PRRR/MAIR0 */ { AA32(LO), Op1( 0), CRn(10), CRm( 2), Op2( 0), access_vm_reg, NULL, MAIR_EL1 }, -- 2.29.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel 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 X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 CFDD2C433E9 for ; Thu, 14 Jan 2021 10:57:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E324239CF for ; Thu, 14 Jan 2021 10:57:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727437AbhANK5e (ORCPT ); Thu, 14 Jan 2021 05:57:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:37210 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726236AbhANK5d (ORCPT ); Thu, 14 Jan 2021 05:57:33 -0500 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 7BA6E23A52; Thu, 14 Jan 2021 10:56:52 +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 1l00J8-007Tvz-Ny; Thu, 14 Jan 2021 10:56:50 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: James Morse , Julien Thierry , Suzuki K Poulose , Alexandru Elisei , Eric Auger , kernel-team@android.com Subject: [PATCH 3/6] KVM: arm64: Add handling of AArch32 PCMEID{2,3} PMUv3 registers Date: Thu, 14 Jan 2021 10:56:30 +0000 Message-Id: <20210114105633.2558739-4-maz@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210114105633.2558739-1-maz@kernel.org> References: <20210114105633.2558739-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Despite advertising support for AArch32 PMUv3p1, we fail to handle the PMCEID{2,3} registers, which conveniently alias with with the top bits of PMCEID{0,1}_EL1. Implement these registers with the usual AA32(HI/LO) aliasing mechanism. Signed-off-by: Marc Zyngier --- arch/arm64/kvm/sys_regs.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index ce08d28ab15c..2bea0494b81d 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -685,14 +685,18 @@ static bool access_pmselr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, static bool access_pmceid(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *r) { - u64 pmceid; + u64 pmceid, mask, shift; BUG_ON(p->is_write); if (pmu_access_el0_disabled(vcpu)) return false; + get_access_mask(r, &mask, &shift); + pmceid = kvm_pmu_get_pmceid(vcpu, (p->Op2 & 1)); + pmceid &= mask; + pmceid >>= shift; p->regval = pmceid; @@ -1895,8 +1899,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(12), Op2( 3), access_pmovs }, { Op1( 0), CRn( 9), CRm(12), Op2( 4), access_pmswinc }, { Op1( 0), CRn( 9), CRm(12), Op2( 5), access_pmselr }, - { Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, - { Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 6), access_pmceid }, + { AA32(LO), Op1( 0), CRn( 9), CRm(12), Op2( 7), access_pmceid }, { Op1( 0), CRn( 9), CRm(13), Op2( 0), access_pmu_evcntr }, { Op1( 0), CRn( 9), CRm(13), Op2( 1), access_pmu_evtyper }, { Op1( 0), CRn( 9), CRm(13), Op2( 2), access_pmu_evcntr }, @@ -1904,6 +1908,8 @@ static const struct sys_reg_desc cp15_regs[] = { { Op1( 0), CRn( 9), CRm(14), Op2( 1), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 2), access_pminten }, { Op1( 0), CRn( 9), CRm(14), Op2( 3), access_pmovs }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 4), access_pmceid }, + { AA32(HI), Op1( 0), CRn( 9), CRm(14), Op2( 5), access_pmceid }, /* PRRR/MAIR0 */ { AA32(LO), Op1( 0), CRn(10), CRm( 2), Op2( 0), access_vm_reg, NULL, MAIR_EL1 }, -- 2.29.2