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| author | Song Shuai <suagrfillet@gmail.com> | 2023-07-24 18:09:17 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-08-02 13:50:37 -0700 |
| commit | 640c503d7dbd7d34a62099c933f4db0ed77ccbec (patch) | |
| tree | 3e0bf93e0354cc62bd9e751fa3eaac0b48f88ba6 /Documentation/admin-guide/kdump | |
| parent | fbe7d19d2b7fcbd38905ba9f691be8f245c6faa6 (diff) | |
| download | linux-stable-640c503d7dbd7d34a62099c933f4db0ed77ccbec.tar.gz linux-stable-640c503d7dbd7d34a62099c933f4db0ed77ccbec.tar.bz2 linux-stable-640c503d7dbd7d34a62099c933f4db0ed77ccbec.zip | |
Documentation: kdump: Add va_kernel_pa_offset for RISCV64
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>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230724100917.309061-2-suagrfillet@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'Documentation/admin-guide/kdump')
| -rw-r--r-- | Documentation/admin-guide/kdump/vmcoreinfo.rst | 6 |
1 files changed, 6 insertions, 0 deletions
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. |