Message ID | 20240115124859.89218-2-michal.orzel@amd.com (mailing list archive) |
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State | New |
Headers | show
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pr=C From: Michal Orzel <michal.orzel@amd.com> To: <xen-devel@lists.xenproject.org> CC: Michal Orzel <michal.orzel@amd.com>, Stefano Stabellini <sstabellini@kernel.org>, Julien Grall <julien@xen.org>, Bertrand Marquis <bertrand.marquis@arm.com>, Volodymyr Babchuk <Volodymyr_Babchuk@epam.com> Subject: [PATCH 1/2] xen/arm32: head: Move earlyprintk 'hex' to .rodata.idmap Date: Mon, 15 Jan 2024 13:48:58 +0100 Message-ID: <20240115124859.89218-2-michal.orzel@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240115124859.89218-1-michal.orzel@amd.com> References: <20240115124859.89218-1-michal.orzel@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF000044EE:EE_|DS7PR12MB5935:EE_ X-MS-Office365-Filtering-Correlation-Id: 8b353449-3875-4f71-2139-08dc15c85c73 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(396003)(136003)(346002)(376002)(230922051799003)(82310400011)(186009)(64100799003)(1800799012)(451199024)(40470700004)(46966006)(36840700001)(70206006)(8936002)(4326008)(478600001)(8676002)(36860700001)(316002)(54906003)(426003)(1076003)(6916009)(26005)(70586007)(83380400001)(336012)(6666004)(2906002)(5660300002)(41300700001)(44832011)(4744005)(2616005)(36756003)(47076005)(82740400003)(356005)(81166007)(86362001)(40460700003)(40480700001)(142923001)(36900700001);DIR:OUT;SFP:1101; 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xen/arm: head: early printk on 1:1 mapping
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Hi Michal, On 15/01/2024 12:48, Michal Orzel wrote: > Thanks to 1ec3fe1f664f ("xen/arm32: head: Improve logging in head.S"), > we can now use PRINT_ID() macro to print messages when running on > identity mapping. For that, all the strings need to be part of the first > page that is mapped. This is not the case for a 'hex' string (used by > asm_putn when printing register values), which currently resides in > .rodata.str. Move it to .rodata.idmap to allow making use of print_reg > macro from anywhere (mostly to aid debugging). > > Signed-off-by: Michal Orzel <michal.orzel@amd.com> Acked-by: Julien Grall <jgrall@amazon.com> Cheers,
diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S index 99d7d4aa63d1..b488a21a71ba 100644 --- a/xen/arch/arm/arm32/head.S +++ b/xen/arch/arm/arm32/head.S @@ -320,7 +320,7 @@ ENTRY(asm_putn) mov pc, lr ENDPROC(asm_putn) -RODATA_STR(hex, "0123456789abcdef") +RODATA_SECT(.rodata.idmap, hex, "0123456789abcdef") #endif /* CONFIG_EARLY_PRINTK */
Thanks to 1ec3fe1f664f ("xen/arm32: head: Improve logging in head.S"), we can now use PRINT_ID() macro to print messages when running on identity mapping. For that, all the strings need to be part of the first page that is mapped. This is not the case for a 'hex' string (used by asm_putn when printing register values), which currently resides in .rodata.str. Move it to .rodata.idmap to allow making use of print_reg macro from anywhere (mostly to aid debugging). Signed-off-by: Michal Orzel <michal.orzel@amd.com> --- xen/arch/arm/arm32/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)