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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 93348C4167B for ; Tue, 8 Dec 2020 14:26:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 66AD323A5B for ; Tue, 8 Dec 2020 14:26:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729857AbgLHOZp (ORCPT ); Tue, 8 Dec 2020 09:25:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36900 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728786AbgLHOZp (ORCPT ); Tue, 8 Dec 2020 09:25:45 -0500 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90F59C061793 for ; Tue, 8 Dec 2020 06:25:04 -0800 (PST) Received: by mail-wr1-x441.google.com with SMTP id k14so16436051wrn.1 for ; Tue, 08 Dec 2020 06:25:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Js+kADbtgM+vdnerlP9z0cKyj1NsUqnpPe0pQv1UIXw=; b=rNqDlvxyiJ1P0X/0WsQzcAkJH7Wxtpn3w4/snPmFyQE2KualXgw27WCaRrxPRFYwwI QsoSIhbDK/z907X9cKGawWx3YqPOhniUpNV1ttzOUbL2Xq2ygPlTp3uuFaexqbw2e7TM jdPGWa9M+DcgzmdFp0iih/gDDMH7slzsCXgDqnvpQ29RZuDbpmF3IqIKm06SjMnw2EzM WOtgcp0yD0ppJcFJgI573XFMmWxBCOKN5+aoJmLMv7u2bHi87WbHN7aVZrm92p/mzelu C76fa08qbD0a4wn1vmdzbRf2A1519kerYbbXV9QHDQqk2wmYfsyqYachY5A4E8hypG4o MFUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Js+kADbtgM+vdnerlP9z0cKyj1NsUqnpPe0pQv1UIXw=; b=FupKoYaN9xEbQTtfw46n7j8dyluL4/LCN5OIZQIHx6wOjpg3jFoWf2FvaU0ak3TMBu i44qHLYdqbBUAS/bRL0kquG+u0lvHG8C4JjX80LBQlv0hTHm2HTrCY41zp2osxbLWol2 7WfQ6vApuHpScHX/6w/oDubau94GbviRyfBXQgPR3PF9hu8u6ATaQbnsDlnNNqbmd9Im baPdcoFZH/nzSk8nnXLa2I5cHxISezZSFMZ1hSMUy/r27vRZ97GnblobhIhhMWskYNlA LQLEqztkwQp+Tfg6sEJvuQv21t6HvLgJLBjd19eZAGnoK4xJ0atLsWKOopGXYBtIkKq3 jGog== X-Gm-Message-State: AOAM53247EEtp+1foUxPkdPI2QVnZoFuwfxBkMBGWQxYgqJIhm6l/rLf hb6reGqViOjWRyEOFkZzh5srfg== X-Google-Smtp-Source: ABdhPJxHrjfFXJbqnCX9xFY5SICS+JzIJWzJPSavZ7ozgbyJlJghKGdV9NwVaAw/PLQwBO8RZFpRfA== X-Received: by 2002:adf:aa4a:: with SMTP id q10mr24761702wrd.276.1607437503226; Tue, 08 Dec 2020 06:25:03 -0800 (PST) Received: from localhost ([2a01:4b00:8523:2d03:258e:cb26:cef:a620]) by smtp.gmail.com with ESMTPSA id m8sm3952024wmc.27.2020.12.08.06.25.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Dec 2020 06:25:02 -0800 (PST) From: David Brazdil To: kvmarm@lists.cs.columbia.edu Cc: Marc Zyngier , James Morse , Julien Thierry , Suzuki K Poulose , Catalin Marinas , Will Deacon , Mark Rutland , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-team@android.com, David Brazdil , Qian Cai Subject: [PATCH 2/6] kvm: arm64: Use lm_alias in nVHE-only VA conversion Date: Tue, 8 Dec 2020 14:24:48 +0000 Message-Id: <20201208142452.87237-3-dbrazdil@google.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com> References: <20201208142452.87237-1-dbrazdil@google.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org init_hyp_physvirt_offset() computes PA from a kernel VA. Conversion to kernel linear-map is required first but the code used kvm_ksym_ref() for this purpose. Under VHE that is a NOP and resulted in a runtime warning. Replace kvm_ksym_ref with lm_alias. Reported-by: Qian Cai Signed-off-by: David Brazdil --- arch/arm64/kvm/va_layout.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c index d8cc51bd60bf..914732b88c69 100644 --- a/arch/arm64/kvm/va_layout.c +++ b/arch/arm64/kvm/va_layout.c @@ -42,7 +42,7 @@ static void init_hyp_physvirt_offset(void) u64 kern_va, hyp_va; /* Compute the offset from the hyp VA and PA of a random symbol. */ - kern_va = (u64)kvm_ksym_ref(__hyp_text_start); + kern_va = (u64)lm_alias(__hyp_text_start); hyp_va = __early_kern_hyp_va(kern_va); CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va; } -- 2.29.2.576.ga3fc446d84-goog 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=-16.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS, 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 B58C4C433FE for ; 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Tue, 08 Dec 2020 06:25:02 -0800 (PST) From: David Brazdil To: kvmarm@lists.cs.columbia.edu Subject: [PATCH 2/6] kvm: arm64: Use lm_alias in nVHE-only VA conversion Date: Tue, 8 Dec 2020 14:24:48 +0000 Message-Id: <20201208142452.87237-3-dbrazdil@google.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com> References: <20201208142452.87237-1-dbrazdil@google.com> MIME-Version: 1.0 Cc: kernel-team@android.com, Qian Cai , Marc Zyngier , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Catalin Marinas , Will Deacon 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 init_hyp_physvirt_offset() computes PA from a kernel VA. Conversion to kernel linear-map is required first but the code used kvm_ksym_ref() for this purpose. Under VHE that is a NOP and resulted in a runtime warning. Replace kvm_ksym_ref with lm_alias. Reported-by: Qian Cai Signed-off-by: David Brazdil --- arch/arm64/kvm/va_layout.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c index d8cc51bd60bf..914732b88c69 100644 --- a/arch/arm64/kvm/va_layout.c +++ b/arch/arm64/kvm/va_layout.c @@ -42,7 +42,7 @@ static void init_hyp_physvirt_offset(void) u64 kern_va, hyp_va; /* Compute the offset from the hyp VA and PA of a random symbol. */ - kern_va = (u64)kvm_ksym_ref(__hyp_text_start); + kern_va = (u64)lm_alias(__hyp_text_start); hyp_va = __early_kern_hyp_va(kern_va); CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va; } -- 2.29.2.576.ga3fc446d84-goog _______________________________________________ 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=-16.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, 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 850D6C4167B for ; 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Tue, 08 Dec 2020 06:25:03 -0800 (PST) Received: from localhost ([2a01:4b00:8523:2d03:258e:cb26:cef:a620]) by smtp.gmail.com with ESMTPSA id m8sm3952024wmc.27.2020.12.08.06.25.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Dec 2020 06:25:02 -0800 (PST) From: David Brazdil To: kvmarm@lists.cs.columbia.edu Subject: [PATCH 2/6] kvm: arm64: Use lm_alias in nVHE-only VA conversion Date: Tue, 8 Dec 2020 14:24:48 +0000 Message-Id: <20201208142452.87237-3-dbrazdil@google.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201208142452.87237-1-dbrazdil@google.com> References: <20201208142452.87237-1-dbrazdil@google.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201208_092504_329100_51D4C980 X-CRM114-Status: GOOD ( 15.97 ) 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: Mark Rutland , kernel-team@android.com, Suzuki K Poulose , Qian Cai , Marc Zyngier , linux-kernel@vger.kernel.org, James Morse , linux-arm-kernel@lists.infradead.org, Catalin Marinas , David Brazdil , Will Deacon , 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 init_hyp_physvirt_offset() computes PA from a kernel VA. Conversion to kernel linear-map is required first but the code used kvm_ksym_ref() for this purpose. Under VHE that is a NOP and resulted in a runtime warning. Replace kvm_ksym_ref with lm_alias. Reported-by: Qian Cai Signed-off-by: David Brazdil --- arch/arm64/kvm/va_layout.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/va_layout.c b/arch/arm64/kvm/va_layout.c index d8cc51bd60bf..914732b88c69 100644 --- a/arch/arm64/kvm/va_layout.c +++ b/arch/arm64/kvm/va_layout.c @@ -42,7 +42,7 @@ static void init_hyp_physvirt_offset(void) u64 kern_va, hyp_va; /* Compute the offset from the hyp VA and PA of a random symbol. */ - kern_va = (u64)kvm_ksym_ref(__hyp_text_start); + kern_va = (u64)lm_alias(__hyp_text_start); hyp_va = __early_kern_hyp_va(kern_va); CHOOSE_NVHE_SYM(hyp_physvirt_offset) = (s64)__pa(kern_va) - (s64)hyp_va; } -- 2.29.2.576.ga3fc446d84-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel