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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=1sjrUiSLuOCFjAOkDHJ7nIx3ITkYs7fzKUyioa9mJ40=; b=CAozoBN16kYYcvSVcrGAzF79Aus45JRLUgi55G5hKX/Gqkd1IjbVzxxLhZ5kKfjEV/ KthGR9XUHjng566VCsnbqVUFHV3DMzeRRPaxJQuqnHTXm1iPJpu5lgHIsuebwS2ls25v JUkr/7rv8jJm9jSBoQTGkqI+7X5vb9yTo8i/YYNrKQiKbU4SYNMCMhg7pqjxpZjVfT3C oW9oFmr41v16OBamsp5ZDkMW/ugxDowq/N/hAHY7mJJGJyU/S3JywOX6AZXuMDNM06m0 qFEgps2clJ5LvIwuDxzko0qYZ/hsBJ5PNuWs0QHsSph0//76BLjj7L+y3K9uGNs0r1+p o4ig== X-Gm-Message-State: AOAM530w/LAKbhbQbSjx2Tw0aSBnq6fSjq6WroQDsg91e6Uq7ywHTjCd b8A5wre3Xau+oJyTxlrGXDqvObtJVSoJ X-Google-Smtp-Source: ABdhPJxRU1Y0mzNBnxlekqfWtLXk/SoCMst6R7gkuiF3eTNottSRcVQMhVqaCB4Xbuwrq8TclRXAUa/wMXdR X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a7b:c75a:: with SMTP id w26mr2323wmk.49.1615819006355; Mon, 15 Mar 2021 07:36:46 -0700 (PDT) Date: Mon, 15 Mar 2021 14:35:32 +0000 In-Reply-To: <20210315143536.214621-1-qperret@google.com> Message-Id: <20210315143536.214621-33-qperret@google.com> Mime-Version: 1.0 References: <20210315143536.214621-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v5 32/36] KVM: arm64: Provide sanitized mmfr* registers at EL2 From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com, qperret@google.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210315_143649_433364_35FC7635 X-CRM114-Status: GOOD ( 10.35 ) 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 We will need to read sanitized values of mmfr{0,1}_el1 at EL2 soon, so add them to the list of copied variables. Signed-off-by: Quentin Perret --- arch/arm64/include/asm/kvm_cpufeature.h | 2 ++ arch/arm64/kvm/sys_regs.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/arm64/include/asm/kvm_cpufeature.h b/arch/arm64/include/asm/kvm_cpufeature.h index efba1b89b8a4..48cba6cecd71 100644 --- a/arch/arm64/include/asm/kvm_cpufeature.h +++ b/arch/arm64/include/asm/kvm_cpufeature.h @@ -15,3 +15,5 @@ #endif KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_ctrel0); +KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr0_el1); +KVM_HYP_CPU_FTR_REG(arm64_ftr_reg_id_aa64mmfr1_el1); diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 3ec34c25e877..dfb3b4f9ca84 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2784,6 +2784,8 @@ struct __ftr_reg_copy_entry { struct arm64_ftr_reg *dst; } hyp_ftr_regs[] __initdata = { CPU_FTR_REG_HYP_COPY(SYS_CTR_EL0, arm64_ftr_reg_ctrel0), + CPU_FTR_REG_HYP_COPY(SYS_ID_AA64MMFR0_EL1, arm64_ftr_reg_id_aa64mmfr0_el1), + CPU_FTR_REG_HYP_COPY(SYS_ID_AA64MMFR1_EL1, arm64_ftr_reg_id_aa64mmfr1_el1), }; void __init setup_kvm_el2_caps(void) -- 2.31.0.rc2.261.g7f71774620-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel