* + riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch added to mm-unstable branch
@ 2024-01-23 0:44 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-01-23 0:44 UTC (permalink / raw
To: mm-commits, viro, piliu, hbathini, ebiederm, bhe, akpm
The patch titled
Subject: riscv, crash: wrap crash dumping code into crash related ifdefs
has been added to the -mm mm-unstable branch. Its filename is
riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Baoquan He <bhe@redhat.com>
Subject: riscv, crash: wrap crash dumping code into crash related ifdefs
Date: Fri, 19 Jan 2024 22:52:40 +0800
Now crash codes under kernel/ folder has been split out from kexec
code, crash dumping can be separated from kexec reboot in config
items on risc-v with some adjustments.
Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery, and
use IS_ENABLED(CONFIG_CRASH_RESERVE) check to decide if compiling
in the crashkernel reservation code.
Link: https://lkml.kernel.org/r/20240119145241.769622-14-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/riscv/kernel/elf_kexec.c | 9 +++++++--
arch/riscv/mm/init.c | 2 +-
2 files changed, 8 insertions(+), 3 deletions(-)
--- a/arch/riscv/kernel/elf_kexec.c~riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs
+++ a/arch/riscv/kernel/elf_kexec.c
@@ -117,6 +117,7 @@ static int elf_find_pbase(struct kimage
return ret;
}
+#ifdef CONFIG_CRASH_DUMP
static int get_nr_ram_ranges_callback(struct resource *res, void *arg)
{
unsigned int *nr_ranges = arg;
@@ -189,6 +190,7 @@ static char *setup_kdump_cmdline(struct
cmdline_ptr[COMMAND_LINE_SIZE - 1] = '\0';
return cmdline_ptr;
}
+#endif
static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
unsigned long kernel_len, char *initrd,
@@ -196,12 +198,11 @@ static void *elf_kexec_load(struct kimag
unsigned long cmdline_len)
{
int ret;
+ void *fdt;
unsigned long old_kernel_pbase = ULONG_MAX;
unsigned long new_kernel_pbase = 0UL;
unsigned long initrd_pbase = 0UL;
- unsigned long headers_sz;
unsigned long kernel_start;
- void *fdt, *headers;
struct elfhdr ehdr;
struct kexec_buf kbuf;
struct kexec_elf_info elf_info;
@@ -227,8 +228,11 @@ static void *elf_kexec_load(struct kimag
kbuf.buf_min = new_kernel_pbase + kernel_len;
kbuf.buf_max = ULONG_MAX;
+#ifdef CONFIG_CRASH_DUMP
/* Add elfcorehdr */
if (image->type == KEXEC_TYPE_CRASH) {
+ void *headers;
+ unsigned long headers_sz;
ret = prepare_elf_headers(&headers, &headers_sz);
if (ret) {
pr_err("Preparing elf core header failed\n");
@@ -264,6 +268,7 @@ static void *elf_kexec_load(struct kimag
}
cmdline = modified_cmdline;
}
+#endif
#ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY
/* Add purgatory to the image */
--- a/arch/riscv/mm/init.c~riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs
+++ a/arch/riscv/mm/init.c
@@ -1354,7 +1354,7 @@ static void __init arch_reserve_crashker
bool high = false;
int ret;
- if (!IS_ENABLED(CONFIG_KEXEC_CORE))
+ if (!IS_ENABLED(CONFIG_CRASH_RESERVE))
return;
ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
_
Patches currently in -mm which might be from bhe@redhat.com are
mm-vmalloc-remove-vmap_area_list.patch
kexec-split-crashkernel-reservation-code-out-from-crash_corec.patch
crash-split-vmcoreinfo-exporting-code-out-from-crash_corec.patch
crash-remove-dependency-of-fa_dump-on-crash_dump.patch
crash-split-crash-dumping-code-out-from-kexec_corec.patch
crash-clean-up-kdump-related-config-items.patch
x86-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm64-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump.patch
s390-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
sh-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
mips-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
loongarch-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
panic-suppress-gnu_printf-warning.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* + riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch added to mm-unstable branch
@ 2024-01-24 10:16 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2024-01-24 10:16 UTC (permalink / raw
To: mm-commits, viro, piliu, hbathini, ebiederm, bhe, akpm
The patch titled
Subject: riscv, crash: wrap crash dumping code into crash related ifdefs
has been added to the -mm mm-unstable branch. Its filename is
riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Baoquan He <bhe@redhat.com>
Subject: riscv, crash: wrap crash dumping code into crash related ifdefs
Date: Wed, 24 Jan 2024 13:12:52 +0800
Now crash codes under kernel/ folder has been split out from kexec
code, crash dumping can be separated from kexec reboot in config
items on risc-v with some adjustments.
Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery, and
use IS_ENABLED(CONFIG_CRASH_RESERVE) check to decide if compiling
in the crashkernel reservation code.
Link: https://lkml.kernel.org/r/20240124051254.67105-13-bhe@redhat.com
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/riscv/kernel/elf_kexec.c | 9 +++++++--
arch/riscv/mm/init.c | 2 +-
2 files changed, 8 insertions(+), 3 deletions(-)
--- a/arch/riscv/kernel/elf_kexec.c~riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs
+++ a/arch/riscv/kernel/elf_kexec.c
@@ -117,6 +117,7 @@ static int elf_find_pbase(struct kimage
return ret;
}
+#ifdef CONFIG_CRASH_DUMP
static int get_nr_ram_ranges_callback(struct resource *res, void *arg)
{
unsigned int *nr_ranges = arg;
@@ -189,6 +190,7 @@ static char *setup_kdump_cmdline(struct
cmdline_ptr[COMMAND_LINE_SIZE - 1] = '\0';
return cmdline_ptr;
}
+#endif
static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
unsigned long kernel_len, char *initrd,
@@ -196,12 +198,11 @@ static void *elf_kexec_load(struct kimag
unsigned long cmdline_len)
{
int ret;
+ void *fdt;
unsigned long old_kernel_pbase = ULONG_MAX;
unsigned long new_kernel_pbase = 0UL;
unsigned long initrd_pbase = 0UL;
- unsigned long headers_sz;
unsigned long kernel_start;
- void *fdt, *headers;
struct elfhdr ehdr;
struct kexec_buf kbuf;
struct kexec_elf_info elf_info;
@@ -227,8 +228,11 @@ static void *elf_kexec_load(struct kimag
kbuf.buf_min = new_kernel_pbase + kernel_len;
kbuf.buf_max = ULONG_MAX;
+#ifdef CONFIG_CRASH_DUMP
/* Add elfcorehdr */
if (image->type == KEXEC_TYPE_CRASH) {
+ void *headers;
+ unsigned long headers_sz;
ret = prepare_elf_headers(&headers, &headers_sz);
if (ret) {
pr_err("Preparing elf core header failed\n");
@@ -264,6 +268,7 @@ static void *elf_kexec_load(struct kimag
}
cmdline = modified_cmdline;
}
+#endif
#ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY
/* Add purgatory to the image */
--- a/arch/riscv/mm/init.c~riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs
+++ a/arch/riscv/mm/init.c
@@ -1358,7 +1358,7 @@ static void __init arch_reserve_crashker
bool high = false;
int ret;
- if (!IS_ENABLED(CONFIG_KEXEC_CORE))
+ if (!IS_ENABLED(CONFIG_CRASH_RESERVE))
return;
ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
_
Patches currently in -mm which might be from bhe@redhat.com are
mm-vmalloc-remove-vmap_area_list.patch
kexec-split-crashkernel-reservation-code-out-from-crash_corec.patch
crash-split-vmcoreinfo-exporting-code-out-from-crash_corec.patch
crash-remove-dependency-of-fa_dump-on-crash_dump.patch
crash-split-crash-dumping-code-out-from-kexec_corec.patch
crash-clean-up-kdump-related-config-items.patch
x86-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm64-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
ppc-crash-enforce-kexec-and-kexec_file-to-select-crash_dump.patch
s390-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
sh-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
mips-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
riscv-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
arm-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
loongarch-crash-wrap-crash-dumping-code-into-crash-related-ifdefs.patch
panic-suppress-gnu_printf-warning.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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