Nick Kossifidis e53d28180d RISC-V: Add kdump support ... This patch adds support for kdump, the kernel will reserve a region for the crash kernel and jump there on panic. In order for userspace tools (kexec-tools) to prepare the crash kernel kexec image, we also need to expose some information on /proc/iomem for the memory regions used by the kernel and for the region reserved for crash kernel. Note that on userspace the device tree is used to determine the system's memory layout so the "System RAM" on /proc/iomem is ignored. I tested this on riscv64 qemu and works as expected, you may test it by triggering a crash through /proc/sysrq_trigger: echo c > /proc/sysrq_trigger Signed-off-by: Nick Kossifidis <mick@ics.forth.gr> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>		2021-04-26 08:25:23 -07:00
..
probes	riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe	2021-04-26 08:25:17 -07:00
vdso	riscv: vdso: fix and clean-up Makefile	2021-04-26 08:25:19 -07:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
asm-offsets.c	riscv: Enable per-task stack canaries	2021-01-14 15:09:10 -08:00
cacheinfo.c	riscv: cacheinfo: Fix using smp_processor_id() in preemptible	2021-01-12 20:25:32 -08:00
cpu_ops_sbi.c	RISC-V: Support cpu hotplug	2020-03-31 11:28:30 -07:00
cpu_ops_spinwait.c	RISC-V: Add cpu_ops and modify default booting method	2020-03-31 11:25:56 -07:00
cpu_ops.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
cpu-hotplug.c	RISC-V: Support cpu hotplug	2020-03-31 11:28:30 -07:00
cpu.c	RISC-V: Rename and move plic_find_hart_id() to arch directory	2020-06-09 19:11:20 -07:00
cpufeature.c	RISC-V: Add bitmap reprensenting ISA features common across CPUs	2020-05-04 14:08:59 -07:00
crash_save_regs.S	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
efi-header.S	RISC-V: Add PE/COFF header for EFI stub	2020-10-02 14:31:16 -07:00
efi.c	RISC-V: Add EFI runtime services	2020-10-02 14:31:28 -07:00
entry.S	riscv: sifive: Apply errata "cip-453" patch	2021-04-26 08:24:57 -07:00
fpu.S	riscv: abstract out CSR names for supervisor vs machine mode	2019-11-05 09:20:42 -08:00
ftrace.c	riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT	2021-01-14 15:09:05 -08:00
head.h	RISC-V: Move DT mapping outof fixmap	2020-10-02 14:30:57 -07:00
head.S	riscv: Move kernel mapping outside of linear mapping	2021-04-26 08:25:04 -07:00
image-vars.h	arch/riscv:fix typo in a comment in arch/riscv/kernel/image-vars.h	2021-02-18 23:18:00 -08:00
irq.c	RISC-V: Remove do_IRQ() function	2020-06-09 19:11:24 -07:00
jump_label.c	riscv: Add jump-label implementation	2020-07-30 11:37:43 -07:00
kexec_relocate.S	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
kgdb.c	riscv: Fix "no previous prototype" compile warning in kgdb.c file	2020-07-09 20:09:30 -07:00
machine_kexec.c	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
Makefile	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
mcount-dyn.S	riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT	2021-01-14 15:09:05 -08:00
mcount.S	riscv: Workaround mcount name prior to clang-13	2021-04-26 08:25:01 -07:00
module-sections.c	riscv: add missing header file includes	2019-10-28 00:46:01 -07:00
module.c	riscv: module: Create module allocations without exec permissions	2021-04-26 08:25:15 -07:00
patch.c	riscv: Fixup compile error BUILD_BUG_ON failed	2021-01-14 15:09:01 -08:00
perf_callchain.c	riscv: Make stack walk callback consistent with generic code	2020-11-20 18:53:38 -08:00
perf_event.c	riscv: perf_event: Make some funciton static	2020-05-11 13:48:19 -07:00
perf_regs.c	perf/arch: Remove perf_sample_data::regs_user_copy	2020-11-09 18:12:34 +01:00
process.c	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
ptrace.c	RISC-V: Implement ptrace regs and stack API	2021-01-14 15:09:01 -08:00
reset.c	riscv: cleanup the default power off implementation	2019-11-13 13:22:52 -08:00
riscv_ksyms.c	riscv: provide memmove implementation	2020-12-10 17:27:54 -08:00
sbi.c	riscv: Constify sbi_ipi_ops	2021-04-26 08:25:10 -07:00
setup.c	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
signal.c	riscv: Add uprobes supported	2021-01-14 15:09:08 -08:00
smp.c	riscv: Constify sbi_ipi_ops	2021-04-26 08:25:10 -07:00
smpboot.c	riscv: Introduce alternative mechanism to apply errata solution	2021-04-26 08:24:55 -07:00
soc.c	riscv: Fix builtin DTB handling	2021-01-07 19:00:50 -08:00
stacktrace.c	RISC-V Patches for the 5.12 Merge Window	2021-02-26 10:28:35 -08:00
sys_riscv.c	RISC-V: Don't allow write+exec only page mapping request in mmap	2020-06-18 17:28:53 -07:00
syscall_table.c	riscv: Constify sys_call_table	2021-04-26 08:25:09 -07:00
time.c	riscv: Mark some global variables __ro_after_init	2021-04-26 08:25:08 -07:00
traps_misaligned.c	riscv: Unaligned load/store handling for M_MODE	2020-04-03 10:45:33 -07:00
traps.c	riscv: add __init section marker to some functions	2021-04-26 08:25:07 -07:00
vdso.c	riscv: Mark some global variables __ro_after_init	2021-04-26 08:25:08 -07:00
vmlinux.lds.S	riscv: Move kernel mapping outside of linear mapping	2021-04-26 08:25:04 -07:00