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[2001:1868:205::9]) by mx.google.com with ESMTPS id 27si37966378pfn.124.2016.07.26.00.59.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Jul 2016 00:59:22 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) client-ip=2001:1868:205::9; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org; spf=pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) smtp.mailfrom=linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bRxFT-000555-Is; Tue, 26 Jul 2016 07:57:55 +0000 Received: from mail-pa0-x22a.google.com ([2607:f8b0:400e:c03::22a]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bRxBX-0000wT-BJ for linux-arm-kernel@lists.infradead.org; Tue, 26 Jul 2016 07:53:53 +0000 Received: by mail-pa0-x22a.google.com with SMTP id pp5so69640405pac.3 for ; Tue, 26 Jul 2016 00:53:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/FPfmAAJG7R9mCli4ZR8ayUGAdWaNX4oOp3vX9Zknv0=; b=h2DLdVMDWKFEjYsND8u0cRBzfV80AuY6SIfn1bbx5yGmqv2gNmCL+uHQWfcT8XKrQP bXpzYIkUxD0X3Zh2LkscGo2BhdwMwN4lU2ujAsQiiml/OG/yVQVpPYvxgZwGdOxDwsDb T2TP1VWtGQCrnafUhfMJb14qgv1TRefdPJ5j0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=/FPfmAAJG7R9mCli4ZR8ayUGAdWaNX4oOp3vX9Zknv0=; b=Z8xR7fXopy9bg/B2B6V/EI308dfTc8YvFKaxZb/jDOpF1MBM1DW9lk+da9TJ91o7cJ QhUl3jN90ruf6M9o2kp6dCbCtIfaJQGanQ3p2eVSsmjyuhd2y3ZJ867RMX2uEsHRYLdL Zsmj1vNvE30/nHv7czhyvXvGDgiw4J+er1lAcs4M5DqnXpN2KgSAKlR1tC54cbTJjPc8 WAPb2rT8/T5HwaJLzzUwrUN/rsAdNjl+Sc4Q/Xru7pNx16rZwZUINfBuNEsL/R4JSjrO alnshBAzzhjAYepimtIK2LE3T0qtcFneLmMdNlPKCqYcsTj2jJpyF7gnoZGhtskEEzTm XRnA== X-Gm-Message-State: AEkooutb8URNlS4NcJAFTGpppLvZ9Pt1klSbB1A/2xHb1wqbZ7atzfK3ktbfMr2eYD2bAxCh X-Received: by 10.66.76.132 with SMTP id k4mr36673294paw.22.1469519610221; Tue, 26 Jul 2016 00:53:30 -0700 (PDT) Received: from linaro.org ([121.95.100.191]) by smtp.googlemail.com with ESMTPSA id yt4sm45415190pab.26.2016.07.26.00.53.29 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Tue, 26 Jul 2016 00:53:29 -0700 (PDT) From: AKASHI Takahiro To: catalin.marinas@arm.com, will.deacon@arm.com Subject: [PATCH v23 6/9] arm64: kdump: add VMCOREINFO's for user-space coredump tools Date: Tue, 26 Jul 2016 16:56:57 +0900 Message-Id: <20160726075659.2290-7-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.9.0 In-Reply-To: <20160726075659.2290-1-takahiro.akashi@linaro.org> References: <20160726075659.2290-1-takahiro.akashi@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160726_005351_719609_1F89BDB3 X-CRM114-Status: GOOD ( 10.55 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2607:f8b0:400e:c03:0:0:0:22a listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, geoff@infradead.org, kexec@lists.infradead.org, AKASHI Takahiro , james.morse@arm.com, bauerman@linux.vnet.ibm.com, dyoung@redhat.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org For the current crash utility, we need to know, at least, - kimage_voffset - PHYS_OFFSET to handle the contents of core dump file (/proc/vmcore) correctly due to the introduction of KASLR (CONFIG_RANDOMIZE_BASE) in v4.6. This patch puts them as VMCOREINFO's into the file. - VA_BITS is also added for makedumpfile command. More VMCOREINFO's may be added later. Signed-off-by: AKASHI Takahiro --- arch/arm64/kernel/machine_kexec.c | 11 +++++++++++ 1 file changed, 11 insertions(+) -- 2.9.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 8ac9dba8..38b4411 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -17,6 +17,7 @@ #include #include +#include #include #include "cpu-reset.h" @@ -260,3 +261,13 @@ void machine_crash_shutdown(struct pt_regs *regs) pr_info("Starting crashdump kernel...\n"); } + +void arch_crash_save_vmcoreinfo(void) +{ + VMCOREINFO_NUMBER(VA_BITS); + /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */ + vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n", + kimage_voffset); + vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n", + PHYS_OFFSET); +}