From: Song Shuai <suagrfillet@gmail.com>
To: bhe@redhat.com, vgoyal@redhat.com, dyoung@redhat.com,
corbet@lwn.net, paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, xianting.tian@linux.alibaba.com,
suagrfillet@gmail.com, anup@brainfault.org, robh@kernel.org,
ajones@ventanamicro.com, alexghiti@rivosinc.com,
conor.dooley@microchip.com
Cc: kexec@lists.infradead.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: [RESEND PATCH -fixes 2/2] Documentation: kdump: Add va_kernel_pa_offset for RISCV64
Date: Mon, 24 Jul 2023 18:09:17 +0800 [thread overview]
Message-ID: <20230724100917.309061-2-suagrfillet@gmail.com> (raw)
In-Reply-To: <20230724100917.309061-1-suagrfillet@gmail.com>
RISC-V Linux exports "va_kernel_pa_offset" in vmcoreinfo to help
Crash-utility translate the kernel virtual address correctly.
Here adds the definition of "va_kernel_pa_offset".
Fixes: 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping")
Link: https://lore.kernel.org/linux-riscv/20230724040649.220279-1-suagrfillet@gmail.com/
Signed-off-by: Song Shuai <suagrfillet@gmail.com>
---
Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst
index c18d94fa6470..f8ebb63b6c5d 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst
@@ -624,3 +624,9 @@ Used to get the correct ranges:
* VMALLOC_START ~ VMALLOC_END : vmalloc() / ioremap() space.
* VMEMMAP_START ~ VMEMMAP_END : vmemmap space, used for struct page array.
* KERNEL_LINK_ADDR : start address of Kernel link and BPF
+
+va_kernel_pa_offset
+-------------------
+
+Indicates the offset between the kernel virtual and physical mappings.
+Used to translate virtual to physical addresses.
--
2.20.1
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next prev parent reply other threads:[~2023-07-24 10:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-24 10:09 [RESEND PATCH -fixes 1/2] riscv: Export va_kernel_pa_offset in vmcoreinfo Song Shuai
2023-07-24 10:09 ` Song Shuai [this message]
2023-07-25 7:48 ` [RESEND PATCH -fixes 2/2] Documentation: kdump: Add va_kernel_pa_offset for RISCV64 Alexandre Ghiti
2023-07-25 1:52 ` [RESEND PATCH -fixes 1/2] riscv: Export va_kernel_pa_offset in vmcoreinfo Xianting Tian
2023-07-25 7:46 ` Alexandre Ghiti
2023-08-03 14:45 ` Palmer Dabbelt
2023-08-03 15:10 ` patchwork-bot+linux-riscv
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