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From: Xianting Tian <xianting.tian@linux.alibaba.com>
To: paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, anup@brainfault.org, heiko@sntech.de,
	guoren@kernel.org, mick@ics.forth.gr,
	alexandre.ghiti@canonical.com, bhe@redhat.com, vgoyal@redhat.com,
	dyoung@redhat.com, corbet@lwn.net
Cc: kexec@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
	crash-utility@redhat.com, huanyi.xj@alibaba-inc.com,
	heinrich.schuchardt@canonical.com, k-hagio-ab@nec.com,
	hschauhan@nulltrace.org,
	Xianting Tian <xianting.tian@linux.alibaba.com>
Subject: [PATCH V4 3/5] riscv: Add modules to virtual kernel memory layout dump
Date: Tue, 26 Jul 2022 17:37:27 +0800	[thread overview]
Message-ID: <20220726093729.1231867-4-xianting.tian@linux.alibaba.com> (raw)
In-Reply-To: <20220726093729.1231867-1-xianting.tian@linux.alibaba.com>

Modules always live before the kernel, MODULES_END is fixed but
MODULES_VADDR isn't fixed, it depends on the kernel size.
Let's add it to virtual kernel memory layout dump.

As MODULES is only defined for CONFIG_64BIT, so we dump it when
CONFIG_64BIT=y.

eg,
MODULES_VADDR - MODULES_END
0xffffffff01133000 - 0xffffffff80000000

Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
---
 arch/riscv/mm/init.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index d466ec670e1f..2c4a64e97aec 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -135,6 +135,10 @@ static void __init print_vm_layout(void)
 		(unsigned long)VMEMMAP_END);
 	print_ml("vmalloc", (unsigned long)VMALLOC_START,
 		(unsigned long)VMALLOC_END);
+#ifdef CONFIG_64BIT
+	print_ml("modules", (unsigned long)MODULES_VADDR,
+		(unsigned long)MODULES_END);
+#endif
 	print_ml("lowmem", (unsigned long)PAGE_OFFSET,
 		(unsigned long)high_memory);
 	if (IS_ENABLED(CONFIG_64BIT)) {
-- 
2.17.1


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  parent reply	other threads:[~2022-07-26  9:38 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-26  9:37 [PATCH V4 0/5] RISC-V fixups to work with crash tool Xianting Tian
2022-07-26  9:37 ` [PATCH V4 1/5] RISC-V: use __smp_processor_id() instead of smp_processor_id() Xianting Tian
2022-07-26  9:37 ` [PATCH V4 2/5] RISC-V: Add arch_crash_save_vmcoreinfo support Xianting Tian
2022-07-26  9:37 ` Xianting Tian [this message]
2022-07-26  9:37 ` [PATCH V4 4/5] RISC-V: Fixup getting correct current pc Xianting Tian
2022-07-26  9:37 ` [PATCH V4 5/5] riscv: crash_core: Export kernel vm layout, phys_ram_base Xianting Tian
2022-07-26  9:52 ` [PATCH V4 0/5] RISC-V fixups to work with crash tool Conor.Dooley
2022-07-26 13:58   ` Xianting Tian

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