| Message ID | 20221019103623.7008-3-xianting.tian@linux.alibaba.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Support VMCOREINFO export for RISCV64 | expand |
On 10/19/22 17:36, Xianting Tian wrote: > The following interrelated definitions and ranges are needed by the kdump > crash tool, which are exported by "arch/riscv/kernel/crash_core.c": > VA_BITS, > PAGE_OFFSET, > phys_ram_base, > KERNEL_LINK_ADDR, > MODULES_VADDR ~ MODULES_END, > VMALLOC_START ~ VMALLOC_END, > VMEMMAP_START ~ VMEMMAP_END, > > Document these RISCV64 exports above. > > Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Hi Xianting, Seems like you forgot to keep carrying my Reviewed-by from v3 [1]. Anyway, here it goes... Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Thanks. [1]: https://lore.kernel.org/linux-doc/20221018081755.6214-3-xianting.tian@linux.alibaba.com/
在 2022/10/20 上午9:56, Bagas Sanjaya 写道: > On 10/19/22 17:36, Xianting Tian wrote: >> The following interrelated definitions and ranges are needed by the kdump >> crash tool, which are exported by "arch/riscv/kernel/crash_core.c": >> VA_BITS, >> PAGE_OFFSET, >> phys_ram_base, >> KERNEL_LINK_ADDR, >> MODULES_VADDR ~ MODULES_END, >> VMALLOC_START ~ VMALLOC_END, >> VMEMMAP_START ~ VMEMMAP_END, >> >> Document these RISCV64 exports above. >> >> Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> > Hi Xianting, > > Seems like you forgot to keep carrying my Reviewed-by from v3 [1]. > Anyway, here it goes... > > Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Sorry, I forgot... :( > > Thanks. > > [1]: https://lore.kernel.org/linux-doc/20221018081755.6214-3-xianting.tian@linux.alibaba.com/ >
diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index 6726f439958c..86fd88492870 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -595,3 +595,32 @@ X2TLB ----- Indicates whether the crashed kernel enabled SH extended mode. + +RISCV64 +======= + +VA_BITS +------- + +The maximum number of bits for virtual addresses. Used to compute the +virtual memory ranges. + +PAGE_OFFSET +----------- + +Indicates the virtual kernel start address of the direct-mapped RAM region. + +phys_ram_base +------------- + +Indicates the start physical RAM address. + +MODULES_VADDR|MODULES_END|VMALLOC_START|VMALLOC_END|VMEMMAP_START|VMEMMAP_END|KERNEL_LINK_ADDR +---------------------------------------------------------------------------------------------- + +Used to get the correct ranges: + + * MODULES_VADDR ~ MODULES_END : Kernel module space. + * 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
The following interrelated definitions and ranges are needed by the kdump crash tool, which are exported by "arch/riscv/kernel/crash_core.c": VA_BITS, PAGE_OFFSET, phys_ram_base, KERNEL_LINK_ADDR, MODULES_VADDR ~ MODULES_END, VMALLOC_START ~ VMALLOC_END, VMEMMAP_START ~ VMEMMAP_END, Document these RISCV64 exports above. Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> --- .../admin-guide/kdump/vmcoreinfo.rst | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+)