isk_size)
> @@ -312,12 +308,6 @@ static void __init reserve_initrd(void)
>
> initrd_start = 0;
>
> - mapped_size = memblock_mem_size(max_pfn_mapped);
> - if (ramdisk_size >= (mapped_size>>1))
> - panic("initrd too large to hand
| 7 ++-
> arch/s390/mm/page-states.c | 6 ++
> arch/sh/mm/init.c| 9 +++--
> mm/memblock.c| 6 ++
> mm/sparse.c | 10 --
> 9 files changed, 35 insertions(+), 51 deletions(-)
>
Reviewed-by: Baoquan He
_region_memory_end_pfn(reg) -
> -memblock_region_memory_base_pfn(reg);
> + unsigned long total_pages = PHYS_PFN(memblock_phys_mem_size());
Reviewed-by: Baoquan He
>
> return (total_pages * CONFIG_CMA_SIZE_PERCENTAGE / 100) << PAGE_SHIFT;
> }
> --
> 2.26.2
>
_pfn_range(i, MAX_NUMNODES, _pfn, _pfn, NULL) {
> - start_pfn = min_t(unsigned long, start_pfn, limit_pfn);
> - end_pfn = min_t(unsigned long, end_pfn, limit_pfn);
> - pages += end_pfn - start_pfn;
> - }
> -
> - return PFN_PHYS(pages);
> -}
Reviewed-by: Baoquan He
2 +-
> arch/arm64/kernel/setup.c| 2 +-
> drivers/irqchip/irq-gic-v3-its.c | 2 +-
> include/linux/memblock.h | 12 +++--
> mm/memblock.c| 46 +++-
> 5 files changed, 17 insertions(+), 47 deletions(-)
Reviewed-by: Baoquan He
insertions(+), 26 deletions(-)
Applied this patch on top of 5.8, crashkernel reservation works well.
And the code change looks good.
Reviewed-by: Baoquan He
>
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index d8de4053c5e8..d7ced6982524 100644
> --- a/arch
lock.memblock_type.regions +
> memblock.memblock_type.cnt);\
> +/**
> + * for_each_mem_region - itereate over registered memory regions
~~~~~
Wonder why emphasize 'registered' memory.
Other than this confusion to me, this patch looks good.
Reviewed-by: Baoquan He
On 07/28/20 at 08:11am, Mike Rapoport wrote:
> From: Mike Rapoport
>
> numa_clear_kernel_node_hotplug() function first traverses numa_meminfo
> regions to set node ID in memblock.reserved and than traverses
> memblock.reserved to update reserved_nodemask to include node IDs that were
> set in
On 07/28/20 at 05:15pm, Mike Rapoport wrote:
> On Tue, Jul 28, 2020 at 07:02:54PM +0800, Baoquan He wrote:
> > On 07/28/20 at 08:11am, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > numa_clear_kernel_node_hotplug() function first traverses numa_
memblock = {
> .current_limit = MEMBLOCK_ALLOC_ANYWHERE,
> };
>
> +#define for_each_memblock_type(i, memblock_type, rgn)
> \
> + for (i = 0, rgn = _type->regions[0]; \
> + i < memblock_type->cnt;\
> + i++, rgn = _type->regions[i])
> +
Reviewed-by: Baoquan He
On 06/08/21 at 02:14pm, Andrew Morton wrote:
> On Tue, 8 Jun 2021 22:24:32 +0800 Baoquan He wrote:
>
> > On 06/08/21 at 06:33am, Pingfan Liu wrote:
> > > As mentioned in kernel commit 1d50e5d0c505 ("crash_core, vmcoreinfo:
> > > Append 'MAX_PHYSMEM_BITS'
CTION_SIZE_BITS"). But user space wants a stable interface to get this
> info. Such info is impossible to be deduced from a crashdump vmcore.
> Hence append SECTION_SIZE_BITS to vmcoreinfo.
>
> Signed-off-by: Pingfan Liu
> Cc: Bhupesh Sharma
> Cc: Kazuhito Hagio
> Cc: Dave Yo
Hi,
On 11/25/21 at 07:02pm, Michal Suchanek wrote:
> Hello,
>
> This is resend of the KEXEC_SIG patchset.
>
> The first patch is new because it'a a cleanup that does not require any
> change to the module verification code.
>
> The second patch is the only one that is intended to change any
>
Hi,
On 02/21/22 at 02:16pm, Sourabh Jain wrote:
> On hotplug event (CPU/memory) the CPU information prepared for the kdump
> kernel
> becomes stale unless it is prepared again. To keep the CPU information
> up-to-date a kdump service reload is triggered via the udev rule.
>
> The above approach
Hi Hari,
On 09/02/23 at 12:34am, Hari Bathini wrote:
> Currently, is_kdump_kernel() returns true when elfcorehdr_addr is set.
> While elfcorehdr_addr is set for kexec based kernel dump mechanism,
> alternate dump capturing methods like fadump [1] also set it to export
> the vmcore.
Hi Hari, Michael
On 08/11/23 at 01:23pm, Hari Bathini wrote:
>
>
> On 10/08/23 8:31 am, Baoquan He wrote:
> > On 08/10/23 at 10:06am, Ming Lei wrote:
> > > On Thu, Aug 10, 2023 at 09:18:27AM +0800, Baoquan He wrote:
> > > > On 08/10/23 at 08:09am, Ming Lei w
On 09/04/23 at 08:04pm, Hari Bathini wrote:
> Hi Baoquan,
>
> Thanks for the review...
>
> On 03/09/23 9:06 am, Baoquan He wrote:
> > Hi Hari,
> >
> > On 09/02/23 at 12:34am, Hari Bathini wrote:
> > > Currently, is_kdump_kernel() returns tru
is exported when fadump is active.
>
> Signed-off-by: Hari Bathini
Thanks, Hari. The whole series looks good to me.
Acked-by: Baoquan He
Since it's a power specific change, should be picked into powerpc tree?
Thanks
Baoquan
> ---
>
> Changes in v2:
> * New patch based
On 09/11/23 at 05:13pm, Michael Ellerman wrote:
> Hari Bathini writes:
> > Currently, is_kdump_kernel() returns true when elfcorehdr_addr is set.
> > While elfcorehdr_addr is set for kexec based kernel dump mechanism,
> > alternate dump capturing methods like fadump [1] also set it to export
> >
vmcore_unusable() from is_kdump_kernel()
> as suggested here:
>
> https://lore.kernel.org/linuxppc-dev/ZP7si3UMVpPfYV+w@MiWiFi-R3L-srv/T/#m13ae5a7e4ba6f4d8397f0f66581832292eee3a85
>
>
> include/linux/crash_dump.h | 8 +++++---
> 1 file changed, 5 insertions(+)
/powerpc/include/asm/kexec.h | 8 ++--
> arch/powerpc/kernel/crash_dump.c | 12
> 2 files changed, 18 insertions(+), 2 deletions(-)
LGTM,
Acked-by: Baoquan He
>
> diff --git a/arch/powerpc/include/asm/kexec.h
> b/arch/powerpc/include/asm/kexec.h
> index a1ddba01e7d1..e
Hi Arnd,
On 10/24/23 at 03:17pm, Arnd Bergmann wrote:
> On Tue, Oct 24, 2023, at 14:44, Baoquan He wrote:
> > Just add people and mailing list to CC since I didn't find this mail in
> > my box, just drag it via 'b4 am'.
> >
> > On 10/23/23 at 01:01pm, Arnd Bergmann wro
On 10/24/23 at 03:17pm, Arnd Bergmann wrote:
> On Tue, Oct 24, 2023, at 14:44, Baoquan He wrote:
> > Just add people and mailing list to CC since I didn't find this mail in
> > my box, just drag it via 'b4 am'.
> >
> > On 10/23/23 at 01:01pm, Arnd Bergmann wrote:
&g
.
If any new invocation of ioremap_uc() need be added, please consider
using ioremap() intead or adding a ARCH specific version if necessary.
Signed-off-by: Baoquan He
Acked-by: Geert Uytterhoeven
Acked-by: Michael Ellerman (powerpc)
Acked-by: Helge Deller # parisc
Cc: linux-al
Just add people and mailing list to CC since I didn't find this mail in
my box, just drag it via 'b4 am'.
On 10/23/23 at 01:01pm, Arnd Bergmann wrote:
..
> ---
> arch/powerpc/Kconfig | 4 ++--
> arch/riscv/Kconfig | 4 +---
> arch/s390/Kconfig| 4 ++--
> arch/x86/Kconfig | 4 ++--
>
u
> Cc: "David S. Miller"
> Cc: linux-cry...@vger.kernel.org
> Signed-off-by: Arnd Bergmann
> ---
> kernel/Kconfig.kexec | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
LGTM,
Acked-by: Baoquan He
>
> diff --git a/kernel/Kconfig.kexec b/kernel/Kcon
On 10/24/23 at 11:55am, Baoquan He wrote:
> On 10/23/23 at 01:01pm, Arnd Bergmann wrote:
> > From: Arnd Bergmann
> >
> > All other users of crypto code use 'select' instead of 'depends on',
> > so do the same thing with KEXEC_FILE for consistency.
> >
>
On 04/25/22 at 11:11pm, Naveen N. Rao wrote:
> kexec_load_purgatory() can fail for many reasons - there is no need to
> print an error when encountering unsupported relocations.
>
> This solves a build issue on powerpc with binutils v2.36 and newer [1].
> Since commit d1bcae833b32f1 ("ELF: Don't
On 05/19/22 at 12:59pm, Eric W. Biederman wrote:
> Baoquan He writes:
>
> > Hi Eric,
> >
> > On 05/18/22 at 04:59pm, Eric W. Biederman wrote:
> >> "Naveen N. Rao" writes:
> >>
> >> > Since commit d1bcae833b32f1 ("ELF
Hi Eric,
On 05/18/22 at 04:59pm, Eric W. Biederman wrote:
> "Naveen N. Rao" writes:
>
> > Since commit d1bcae833b32f1 ("ELF: Don't generate unused section
> > symbols") [1], binutils (v2.36+) started dropping section symbols that
> > it thought were unused. This isn't an issue in general, but
On 05/20/22 at 08:23am, Guilherme G. Piccoli wrote:
> On 19/05/2022 20:45, Baoquan He wrote:
> > [...]
> >> I really appreciate the summary skill you have, to convert complex
> >> problems in very clear and concise ideas. Thanks for that, very useful!
> >> I
On 05/24/22 at 10:01am, Petr Mladek wrote:
> On Fri 2022-05-20 08:23:33, Guilherme G. Piccoli wrote:
> > On 19/05/2022 20:45, Baoquan He wrote:
> > > [...]
> > >> I really appreciate the summary skill you have, to convert complex
> > >> proble
dmesg makes it harder to work
> out why the syscall failed. But it's a kernel bug if there are unhandled
> relocations in the kernel-supplied purgatory code, so a user really has
> no way to do anything about the error even if it is printed.
>
> > "Naveen N. Rao"
On 05/15/22 at 07:47pm, Guilherme G. Piccoli wrote:
> On 12/05/2022 11:03, Petr Mladek wrote:
..
> > OK, the question is how to make it better. Let's start with
> > a clear picture of the problem:
> >
> > 1. panic() has basically two funtions:
> >
> > + show/store debug information
On 05/18/22 at 02:48pm, Naveen N. Rao wrote:
> Baoquan He wrote:
> > On 05/18/22 at 12:26pm, Michael Ellerman wrote:
> > >
> > > It seems that recordmcount is not really maintained anymore now that x86
> > > uses objtool?
> > >
> > > T
Hi,
On 06/15/22 at 07:37pm, Li Chen wrote:
> Hi Baoquan,
>
> On Wed, 15 Jun 2022 19:03:53 -0700 Baoquan He wrote
>
> > On 06/14/22 at 10:04pm, Li Chen wrote:
> > > From: Li Chen
> > >
> > > We already have struct range, so just u
On 06/14/22 at 10:04pm, Li Chen wrote:
> From: Li Chen
>
> We already have struct range, so just use it.
Looks good, have you tested it?
>
> Signed-off-by: Li Chen
> ---
> arch/powerpc/kexec/file_load_64.c | 2 +-
> arch/powerpc/kexec/ranges.c | 8
> include/linux/kexec.h
From: Li Chen
We already have struct range, so just use it.
Signed-off-by: Li Chen
Acked-by: Baoquan He
Signed-off-by: Baoquan He
Cc: linuxppc-dev
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
---
Baoquan:
- Rebased to the latest linus's master branch, fix
in flag to make it handled correctly as above.
Signed-off-by: Baoquan He
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: Christophe Leroy
Cc: "Pali Roh??r"
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/kernel/pci_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --
in flag to make it handled correctly as above.
Signed-off-by: Baoquan He
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: Christophe Leroy
Cc: "Pali Rohár"
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/kernel/pci_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --
.
If any new invocation of ioremap_uc() need be added, please consider
using ioremap() intead or adding a ARCH specific version if necessary.
Acked-by: Geert Uytterhoeven
Signed-off-by: Baoquan He
Cc: linux-al...@vger.kernel.org
Cc: linux-hexa...@vger.kernel.org
Cc: linux-m...@lists.linux-m68k.org
On 03/09/23 at 03:36pm, Thomas Bogendoerfer wrote:
> On Wed, Mar 08, 2023 at 09:07:09PM +0800, Baoquan He wrote:
> > ioremap_uc() is only meaningful on old x86-32 systems with the PAT
> > extension, and on ia64 with its slightly unconventional ioremap()
> > behavior. So
On 03/07/23 at 11:58am, Michael Ellerman wrote:
> "Arnd Bergmann" writes:
> > On Sun, Mar 5, 2023, at 10:29, Geert Uytterhoeven wrote:
> >> On Sun, Mar 5, 2023 at 10:23 AM Michael Ellerman
> >> wrote:
> >>> Maybe that exact code path is only reachable on x86/ia64? But if so
> >>> please explain
ioremap_uc()
can be added in the ARCH.
Link: https://lore.kernel.org/all/20191112105507.ga7...@lst.de/#t
Acked-by: Geert Uytterhoeven
Signed-off-by: Baoquan He
Cc: linux-al...@vger.kernel.org
Cc: linux-hexa...@vger.kernel.org
Cc: linux-m...@lists.linux-m68k.org
Cc: linux-m...@vger.kernel.org
Cc: linux-par
() for powerpc's
special operation when ioremap() and iounmap().
Signed-off-by: Christophe Leroy
Signed-off-by: Baoquan He
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/io.h | 8 +++-
arch
d with the one in , let's rely on the
latter.
x86:
- selected GENERIC_IOMAP, remove #include at
the middle of . Let's rely on .
This is a preparation patch so that Later patch don't need to add
ARCH_HAS_IOREMAP_xx macro.
Signed-off-by: Baoquan He
Cc: loonga...@lists.linux.dev
Cc: linu
On 03/01/23 at 05:11am, Matthew Wilcox wrote:
> On Wed, Mar 01, 2023 at 04:38:10AM +, Edward Cree wrote:
> > On 01/03/2023 03:42, Baoquan He wrote:
> > > diff --git a/drivers/net/ethernet/sfc/io.h b/drivers/net/ethernet/sfc/io.h
> > > index 30439cc83a89..07f99ad14bf3
() for powerpc's
special operation when ioremap() and iounmap().
Signed-off-by: Christophe Leroy
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/Kconfig
On 07/10/23 at 05:14pm, Ming Lei wrote:
> On Mon, Jul 10, 2023 at 08:41:09AM +0200, Christoph Hellwig wrote:
> > On Sat, Jul 08, 2023 at 10:02:59AM +0800, Ming Lei wrote:
> > > Take blk-mq's knowledge into account for calculating io queues.
> > >
> > > Fix wrong queue mapping in case of kdump
On 07/11/23 at 11:53am, Ming Lei wrote:
> Hi Baoquan,
>
> On Tue, Jul 11, 2023 at 11:35:50AM +0800, Baoquan He wrote:
> > On 07/10/23 at 05:14pm, Ming Lei wrote:
> > > On Mon, Jul 10, 2023 at 08:41:09AM +0200, Christoph Hellwig wrote:
> > > > On Sat, Jul 08
() for powerpc's
special operation when ioremap() and iounmap().
Signed-off-by: Christophe Leroy
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/Kconfig
On 08/10/23 at 08:09am, Ming Lei wrote:
> On Wed, Aug 09, 2023 at 03:44:01PM +0200, Christoph Hellwig wrote:
> > I'm starting to sound like a broken record, but we can't just do random
> > is_kdump checks, and it's not going to get better by resending it again and
> > again. If kdump kernels
On 08/10/23 at 10:06am, Ming Lei wrote:
> On Thu, Aug 10, 2023 at 09:18:27AM +0800, Baoquan He wrote:
> > On 08/10/23 at 08:09am, Ming Lei wrote:
> > > On Wed, Aug 09, 2023 at 03:44:01PM +0200, Christoph Hellwig wrote:
> > > > I'm starting to sound like a broken recor
Hi Eric,
On 06/19/23 at 10:57am, Eric DeVolder wrote:
..
> +config ARCH_SUPPORTS_KEXEC
> + def_bool y
>
> -config ARCH_HAS_KEXEC_PURGATORY
> - def_bool KEXEC_FILE
> +config ARCH_SUPPORTS_KEXEC_FILE
> + def_bool X86_64 && CRYPTO && CRYPTO_SHA256
..
> +config
On 06/20/23 at 07:56am, Eric DeVolder wrote:
>
>
> On 6/20/23 03:21, Baoquan He wrote:
> > Hi Eric,
> >
> > On 06/19/23 at 10:57am, Eric DeVolder wrote:
> > ..
> > > +config ARCH_SUPPORTS_KEXEC
> > > + def_bool y
> > >
() for powerpc's
special operation when ioremap() and iounmap().
Signed-off-by: Christophe Leroy
Signed-off-by: Baoquan He
Reviewed-by: Christoph Hellwig
Reviewed-by: Mike Rapoport (IBM)
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/Kconfig
remove #include in
the middle of . Let's rely on .
Signed-off-by: Baoquan He
Cc: loonga...@lists.linux.dev
Cc: linux-m...@lists.linux-m68k.org
Cc: linux-m...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: x...@kernel.org
Cc: net...@vger.kernel.org
Cc: linux-a...@vger.kernel.org
---
arch
() for powerpc's
special operation when ioremap() and iounmap().
Signed-off-by: Christophe Leroy
Signed-off-by: Baoquan He
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/io.h | 8 +++-
arch
On 05/16/23 at 09:15am, Mike Rapoport wrote:
> Hi,
>
> On Mon, May 15, 2023 at 05:08:32PM +0800, Baoquan He wrote:
> > Let's use '#define ioremap_xx' and "#ifdef ioremap_xx" instead.
> >
> > For each architecture to remove defined ARCH_HAS_IOREMAP_
If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch#_base_tree_information]
>
> url:
> https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/k
ASH_RESERVE) checking in v2.
- In patch 14, update code change after below commit merged into
mainline:
- commit 78de91b45860 ("LoongArch: Use generic interface to support
crashkernel=X,[high,low]")
Baoquan He (14):
kexec: split crashkernel reservation code out from crash_core.c
On 01/24/24 at 09:13am, John Paul Adrian Glaubitz wrote:
> Hello Baoquan,
>
> On Wed, 2024-01-24 at 13:12 +0800, Baoquan He wrote:
> > Now crash codes under kernel/ folder has been split out from kexec
> > code, crash dumping can be separated from kexec reboot in confi
if compiling
in the crashkernel reservation code.
Signed-off-by: Baoquan He
---
arch/sh/kernel/machine_kexec.c | 3 +++
arch/sh/kernel/setup.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c
index fa3a7b36190a
-by: Baoquan He
---
arch/mips/kernel/setup.c | 17 ++---
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 9c30de151597..12a1a4ffb602 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -442,8 +442,6
def CONFIG_CRASH_DUMP
- (!IS_ENABLED(CONFIG_KEXEC_CORE)) - > (!IS_ENABLED(CONFIG_CRASH_RESERVE))
Signed-off-by: Baoquan He
---
arch/x86/kernel/Makefile | 4 ++--
arch/x86/kernel/cpu/mshyperv.c | 4
arch/x86/kernel/kexec-bzimage64.c | 4
arch/x86/kernel/kvm.c
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 arm64 with some adjustments.
Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery.
Signed-off-by: Baoquan He
---
arch/arm64/include/asm
-by: Baoquan He
---
drivers/base/cpu.c | 6 +-
include/linux/crash_core.h | 61 +
include/linux/kexec.h | 45 +--
init/initramfs.c | 2 +-
kernel/Makefile| 3 +-
kernel/crash_core.c| 256 +
kernel
->PROC_VMCORE
KEXEC_FILE --| \ |
\>CRASH_HOTPLUG
KEXEC --|
|--> KEXEC_CORE--> kexec reboot
KEXEC_FILE --|
Signed-off-by: Baoquan He
---
kernel/Kconfig.kexec | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/kernel/Kconfig.kexec b/kernel/Kconfig.kexec
ind
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 s390 with some adjustments.
Here wrap up crash dumping codes with CONFIG_CRASH_DUMP ifdeffery.
Signed-off-by: Baoquan He
---
arch/s390/kernel/kexec_elf.c
In PowerPC, the crash dumping and kexec reboot share code in
arch_kexec_locate_mem_hole(), in which struct crash_mem is used.
Here enfoce enforce KEXEC and KEXEC_FILE to select CRASH_DUMP for now.
Signed-off-by: Baoquan He
---
arch/powerpc/Kconfig | 5 +
1 file changed, 5 insertions
-by: Baoquan He
---
v2->v3:
- Update code change regarding below commit:
commit 78de91b45860 ("LoongArch: Use generic interface to support
crashkernel=X,[high,low]")
arch/loongarch/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/loongarch/ker
CONFIG_VMCORE_INFO is ebabled. With this, FA_DUMP doesn't need to depend
on CRASH_DUMP.
Signed-off-by: Baoquan He
---
arch/powerpc/Kconfig | 1 -
kernel/Makefile | 3 +--
kernel/{crash_dump.c => elfcorehdr.c} | 0
kernel/kexec_internal.h | 2 ++
4 fi
do renaming as follows:
- arch/xxx/kernel/{crash_core.c => vmcore_info.c}
because they are only related to vmcoreinfo exporting on x86, arm64,
riscv.
And also Remove config item CRASH_CORE, and rely on CONFIG_KEXEC_CORE to
decide if build in crash_core.c.
Signed-off-by: Baoquan He
---
v2-
nly related to crashkernel reservation.
Signed-off-by: Baoquan He
---
arch/arm64/Kconfig| 2 +-
.../asm/{crash_core.h => crash_reserve.h} | 4 +-
arch/powerpc/Kconfig | 1 +
arch/powerpc/mm/nohash/kaslr_booke.c | 4 +-
arch
if compiling
in the crashkernel reservation code.
Signed-off-by: Baoquan He
---
arch/riscv/kernel/elf_kexec.c | 9 +++--
arch/riscv/mm/init.c | 2 +-
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c
index
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 arm with some adjustments.
Here use CONFIG_CRASH_RESERVE ifdef to replace CONFIG_KEXEC ifdef.
Signed-off-by: Baoquan He
---
v2->v3:
- Fix the lkp repor
Hi Sourabh,
Thanks for the great work. There are some concerns, please see inline
comments.
On 01/11/24 at 04:21pm, Sourabh Jain wrote:
..
> Now, if the kexec tool sends KEXEC_CRASH_HOTPLUG_SUPPORT kexec flag to
> the kernel, it indicates to the kernel that all the required kexec
> segment
-
> 4 files changed, 11 insertions(+), 10 deletions(-)
LGTM,
Acked-by: Baoquan He
>
> diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
> index c9f6a6c5de3c..9bb6607e864e 100644
> --- a/arch/x86/include/asm/kexec.h
> +++ b/arch/x86/include/asm/kexec.h
> @@ -
On 02/12/24 at 07:27pm, Sourabh Jain wrote:
> Hello Baoquan,
>
> On 05/02/24 08:40, Baoquan He wrote:
> > Hi Sourabh,
> >
..
> > > diff --git a/include/linux/kexec.h b/include/linux/kexec.h
> > > index 802052d9c64b..7880d74dc5c4 100644
> > >
On 02/13/24 at 05:01pm, Hari Bathini wrote:
> struct crash_mem defined under include/linux/crash_core.h represents
> a list of memory ranges. While it is used to represent memory ranges
>From its name, it's not only representing memory ranges, it's
representing crash memory ranges. Except of
On 02/21/24 at 11:15am, Hari Bathini wrote:
> Hi Baoquan,
>
> On 04/02/24 8:56 am, Baoquan He wrote:
> > > > Hope Hari and Pingfan can help have a look, see if
> > > > it's doable. Now, I make it either have both kexec and crash enabled, or
> &
et the @hotplug_support member of struct
> > kimage for both kexec_load and kexec_file_load system calls. This
> > simplifies kernel checks to identify hotplug support for the currently
> > loaded kdump image by just examining the value of @hotplug_support.
> >
> &g
On 02/21/24 at 12:57pm, Andrew Morton wrote:
> On Wed, 21 Feb 2024 11:15:00 +0530 Hari Bathini
> wrote:
>
> > On 04/02/24 8:56 am, Baoquan He wrote:
> > >>> Hope Hari and Pingfan can help have a look, see if
> > >>> it's doable. Now, I mak
On 02/21/24 at 11:07pm, Sourabh Jain wrote:
> Hello Baoquan,
>
> On 19/01/24 20:22, Baoquan He wrote:
> > Now move the relevant codes into separate files:
> > kernel/crash_reserve.c, include/linux/crash_reserve.h.
> >
> > And add config item CRASH_RESERVE to cont
On 12/04/23 at 04:14pm, Conor Dooley wrote:
> On Mon, Dec 04, 2023 at 11:38:05PM +0800, Baoquan He wrote:
> > On 12/01/23 at 10:38am, Conor Dooley wrote:
> > > On Thu, Nov 30, 2023 at 10:39:53AM +0800, Baoquan He wrote:
> > >
> > > $subject has a typo in the a
On 12/19/23 at 02:44pm, Conor Dooley wrote:
> On Wed, Dec 13, 2023 at 01:57:45PM +0800, Baoquan He wrote:
> > Then when specifying '-d' for kexec_file_load interface, loaded
> > locations of kernel/initrd/cmdline etc can be printed out to help debug.
> >
> > Here replac
gt; interface. These functions take the necessary locks needed to access the
> `kexec_crash_image` object and then forward it to the
> architecture-specific handler to do the rest.
>
> Signed-off-by: Sourabh Jain
> Cc: Akhil Raj
> Cc: Andrew Morton
> Cc: Aneesh Kumar K.V
> Cc: Baoquan H
On 12/15/23 at 12:17pm, Sourabh Jain wrote:
..
> > > diff --git a/include/linux/kexec.h b/include/linux/kexec.h
> > > index 0f6ea35879ee..bcedb7625b1f 100644
> > > --- a/include/linux/kexec.h
> > > +++ b/include/linux/kexec.h
> > > @@ -319,6 +319,7 @@ struct kimage {
> > > #ifdef
On 12/15/23 at 11:29am, Sourabh Jain wrote:
..
> > > +static void update_crash_elfcorehdr(struct kimage *image, struct
> > > memory_notify *mn)
> > > +{
> > > + int ret;
> > > + struct crash_mem *cmem = NULL;
> > > + struct kexec_segment *ksegment;
> > > + void *ptr, *mem, *elfbuf = NULL;
> >
On 12/11/23 at 02:00pm, Sourabh Jain wrote:
..
> diff --git a/arch/powerpc/include/asm/kexec_ranges.h
> b/arch/powerpc/include/asm/kexec_ranges.h
> index f83866a19e87..802abf580cf0 100644
> --- a/arch/powerpc/include/asm/kexec_ranges.h
> +++ b/arch/powerpc/include/asm/kexec_ranges.h
> @@
ntaining the backward compatibility with older kexec tools that
> do not have these newly introduced flags.
>
> Signed-off-by: Sourabh Jain
> Cc: Akhil Raj
> Cc: Andrew Morton
> Cc: Aneesh Kumar K.V
> Cc: Baoquan He
> Cc: Borislav Petkov (AMD)
> Cc: Boris Ostr
On 12/17/23 at 12:27am, Sourabh Jain wrote:
>
>
> On 16/12/23 15:11, Baoquan He wrote:
> > On 12/15/23 at 12:17pm, Sourabh Jain wrote:
> > ..
> > > > > diff --git a/include/linux/kexec.h b/include/linux/kexec.h
> > > > > index 0f6ea35879ee
On 12/07/23 at 07:22am, Baoquan He wrote:
> On 12/06/23 at 04:54pm, Conor Dooley wrote:
> > On Wed, Dec 06, 2023 at 11:37:52PM +0800, Baoquan He wrote:
> > > On 12/04/23 at 04:14pm, Conor Dooley wrote:
> > > > On Mon, Dec 04, 2023 at 11:38:05PM +0800, Baoquan He wrot
as kexec_load
interface has been doing.
Signed-off-by: Baoquan He
---
arch/x86/kernel/crash.c | 4 ++--
arch/x86/kernel/kexec-bzimage64.c | 23 ++-
2 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index
use the generic code
has done the printing.
Signed-off-by: Baoquan He
---
arch/arm64/kernel/kexec_image.c| 6 +++---
arch/arm64/kernel/machine_kexec.c | 26 ++
arch/arm64/kernel/machine_kexec_file.c | 12 ++--
3 files changed, 15 insertions(+), 29 deleti
of patch 2 in kernel/crash_core.c reported by LKP.
- Fix building warning on arm64 in patch 4 reported by LKP.
Baoquan He (7):
kexec_file: add kexec_file flag to control debug printing
kexec_file: print out debugging message if required
kexec_file, x86: print out debugging message if
() to facilitate the printing.
This is a preparation, later kexec_dprintk() will be used to replace the
existing pr_debug(). Once 'kexec -s -d' is specified, it will print out
kexec/kdump loading information. If '-d' is not specified, it regresses
to pr_debug().
Signed-off-by: Baoquan He
to help debug.
Signed-off-by: Baoquan He
---
kernel/crash_core.c| 8 +---
kernel/kexec_file.c| 11 ---
security/integrity/ima/ima_kexec.c | 4 ++--
3 files changed, 15 insertions(+), 8 deletions(-)
diff --git a/kernel/crash_core.c b/kernel/crash_core.c
Then when specifying '-d' for kexec_file_load interface, loaded
locations of kernel/initrd/cmdline etc can be printed out to help
debug.
Here replace pr_debug() with the newly added kexec_dprintk() in
kexec_file loading related codes.
Signed-off-by: Baoquan He
---
arch/parisc/kernel
Then when specifying '-d' for kexec_file_load interface, loaded
locations of kernel/initrd/cmdline etc can be printed out to help
debug.
Here replace pr_debug() with the newly added kexec_dprintk() in
kexec_file loading related codes.
Signed-off-by: Baoquan He
---
arch/powerpc/kexec/elf_64.c
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