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linux/arch/riscv/kernel
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Song Shuai fbe7d19d2b
riscv: Export va_kernel_pa_offset in vmcoreinfo 
Since RISC-V Linux v6.4, the commit 3335068f8721 ("riscv: Use
PUD/P4D/PGD pages for the linear mapping") changes phys_ram_base
from the physical start of the kernel to the actual start of the DRAM.

The Crash-utility's VTOP() still uses phys_ram_base and kernel_map.virt_addr
to translate kernel virtual address, that failed the Crash with Linux v6.4 [1].

Export kernel_map.va_kernel_pa_offset in vmcoreinfo to help Crash translate
the kernel virtual address correctly.

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/ [1]
Signed-off-by: Song Shuai <suagrfillet@gmail.com>
Reviewed-by: Xianting Tian  <xianting.tian@linux.alibaba.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20230724100917.309061-1-suagrfillet@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-02 13:50:31 -07:00
..
compat_vdso
RISC-V Patches for the 6.4 Merge Window, Part 1
2023-04-28 16:55:39 -07:00
pi
riscv: Fix orphan section warnings caused by kernel/pi
2023-05-09 18:20:23 -07:00
probes
RISC-V Patches for the 6.5 Merge Window, Part 1
2023-06-30 09:37:26 -07:00
vdso
riscv: replace deprecated scall with ecall
2023-06-20 09:02:09 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acpi.c
RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address
2023-08-02 13:49:43 -07:00
alternative.c
RISC-V: hwprobe: Remove __init on probe_vendor_features()
2023-04-25 21:58:42 -07:00
asm-offsets.c
RISC-V: Add arch functions to support hibernation/suspend-to-disk
2023-04-29 11:25:13 -07:00
cacheinfo.c
RISC-V Patches for the 6.4 Merge Window, Part 1
2023-04-28 16:55:39 -07:00
compat_signal.c
riscv: compat: signal: Add rt_frame implementation
2022-05-17 16:37:21 -07:00
compat_syscall_table.c
riscv: compat: syscall: Add compat_sys_call_table implementation
2022-04-26 13:36:25 -07:00
cpu_ops_sbi.c
riscv: cpu_ops_sbi: Add 64bit hartid support on RV64
2022-07-19 16:38:58 -07:00
cpu_ops_spinwait.c
RISC-V: cpu_ops_spinwait.c should include head.h
2022-08-11 13:24:16 -07:00
cpu_ops.c
RISC-V: Align SBI probe implementation with spec
2023-04-29 13:04:50 -07:00
cpu-hotplug.c
riscv: Switch to hotplug core state synchronization
2023-05-15 13:44:59 +02:00
cpu.c
Merge patch series "ISA string parser cleanups"
2023-06-23 10:06:20 -07:00
cpufeature.c
RISC-V: Don't include Zicsr or Zifencei in I from ACPI
2023-07-12 10:04:40 -07:00
crash_core.c
riscv: Export va_kernel_pa_offset in vmcoreinfo
2023-08-02 13:50:31 -07:00
crash_dump.c
vmcore: convert copy_oldmem_page() to take an iov_iter
2022-04-29 14:37:59 -07:00
crash_save_regs.S
RISC-V: Fixup get incorrect user mode PC for kernel mode regs
2022-08-11 08:54:40 -07:00
efi-header.S
riscv: Prepare EFI header for relocatable kernels
2023-04-19 07:46:28 -07:00
efi.c
efi: Discover BTI support in runtime services regions
2023-02-04 09:19:02 +01:00
elf_kexec.c
RISC-V: kexec: Fix memory leak of elf header buffer
2022-12-05 10:59:58 -08:00
entry.S
riscv: replace deprecated scall with ecall
2023-06-20 09:02:09 -07:00
fpu.S
…
ftrace.c
RISC-V: Don't check text_mutex during stop_machine
2023-03-09 14:58:51 -08:00
head.h
riscv: entry: Convert to generic entry
2023-03-23 08:47:00 -07:00
head.S
riscv: prevent stack corruption by reserving task_pt_regs(p) early
2023-06-08 07:16:49 -07:00
hibernate-asm.S
riscv: hibernation: Remove duplicate call of suspend_restore_csrs
2023-06-19 09:27:57 -07:00
hibernate.c
riscv: hibernate: remove WARN_ON in save_processor_state
2023-06-23 10:06:22 -07:00
image-vars.h
riscv: Fix EFI stub usage of KASAN instrumented strcmp function
2023-04-19 07:24:52 -07:00
irq.c
riscv: stack: Support HAVE_SOFTIRQ_ON_OWN_STACK
2023-06-22 10:38:36 -07:00
jump_label.c
jump_label: make initial NOP patching the special case
2022-06-24 09:48:55 +02:00
kexec_relocate.S
riscv: Don't use va_pa_offset on kdump
2022-01-09 10:38:06 -08:00
kgdb.c
RISC-V: rename parse_asm.h to insn.h
2022-12-29 06:59:47 -08:00
machine_kexec_file.c
RISC-V: Add kexec_file support
2022-05-19 12:14:18 -07:00
machine_kexec.c
riscv: kexec: Fixup crash_smp_send_stop without multi cores
2022-11-29 21:50:59 -08:00
Makefile
RISC-V Patches for the 6.5 Merge Window, Part 1
2023-06-30 09:37:26 -07:00
mcount-dyn.S
riscv: entry: Consolidate general regs saving/restoring
2023-03-23 08:47:03 -07:00
mcount.S
riscv: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
2023-06-22 10:39:56 -04:00
module-sections.c
…
module.c
riscv: module: Add ADD16 and SUB16 rela types
2023-01-31 23:29:40 -08:00
patch.c
RISC-V: Don't check text_mutex during stop_machine
2023-03-09 14:58:51 -08:00
perf_callchain.c
riscv: Fix fill_callchain return value
2022-03-30 23:01:42 -07:00
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
process.c
riscv: Add prctl controls for userspace vector management
2023-06-08 07:16:53 -07:00
ptrace.c
riscv: Add ptrace vector support
2023-06-08 07:16:45 -07:00
reset.c
riscv: Use do_kernel_power_off()
2022-05-19 19:30:30 +02:00
riscv_ksyms.c
RISC-V: add infrastructure to allow different str* implementations
2023-01-31 11:43:23 -08:00
sbi-ipi.c
RISC-V: Allow marking IPIs as suitable for remote FENCEs
2023-04-08 11:26:24 +01:00
sbi.c
RISC-V: Align SBI probe implementation with spec
2023-04-29 13:04:50 -07:00
setup.c
Merge patch series "riscv: Add vector ISA support"
2023-06-08 07:17:09 -07:00
signal.c
riscv: signal: validate altstack to reflect Vector
2023-06-08 07:16:48 -07:00
smp.c
RISC-V: drop error print from riscv_hartid_to_cpuid()
2023-07-04 09:04:12 -07:00
smpboot.c
risc-v: Fix order of IPI enablement vs RCU startup
2023-07-05 07:24:38 -07:00
soc.c
riscv: Fix builtin DTB handling
2021-01-07 19:00:50 -08:00
stacktrace.c
riscv: Use READ_ONCE_NOCHECK in imprecise unwinding stack mode
2023-03-09 14:50:35 -08:00
suspend_entry.S
RISC-V: Factor out common code of __cpu_resume_enter()
2023-04-29 11:25:11 -07:00
suspend.c
RISC-V: Change suspend_save_csrs and suspend_restore_csrs to public function
2023-04-29 11:25:10 -07:00
sys_riscv.c
Merge patch series "RISC-V: Export Zba, Zbb to usermode via hwprobe"
2023-06-19 14:34:40 -07:00
syscall_table.c
riscv/vdso: Refactor asm/vdso.h
2021-10-02 13:42:23 -07:00
time.c
RISC-V: time.c: Add ACPI support for time_init()
2023-06-01 08:45:13 -07:00
traps_misaligned.c
riscv: traps_misaligned: do not duplicate stringify
2022-08-11 08:56:53 -07:00
traps.c
riscv: Discard vector state on syscalls
2023-07-04 08:59:24 -07:00
vdso.c
riscv: vdso: include vdso/vsyscall.h for vdso_data
2023-07-04 07:54:41 -07:00
vector.c
riscv: vector: clear V-reg in the first-use trap
2023-07-01 07:38:21 -07:00
vmlinux-xip.lds.S
riscv: vmlinux-xip.lds.S: remove .alternative section
2023-06-25 16:24:03 -07:00
vmlinux.lds.S
riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
2023-06-25 16:24:05 -07:00