On Mon, Sep 26, 2022 at 09:40:25AM +0200, Michal Such??nek wrote:
> On Mon, Sep 26, 2022 at 08:47:32AM +0200, Greg Kroah-Hartman wrote:
> > On Sat, Sep 24, 2022 at 01:55:23PM +0200, Michal Suchánek wrote:
> > > On Sat, Sep 24, 2022 at 12:13:34PM +0200, Greg Kroah-Hartman wrote:
> > > > On Sat, Sep
On Thu, Jan 16, 2020 at 06:08:58PM +, Will Deacon wrote:
> On Tue, Jan 14, 2020 at 02:38:26PM +0900, AKASHI Takahiro wrote:
> > On Mon, Jan 13, 2020 at 11:21:06AM +, Will Deacon wrote:
> > > On Fri, Jan 10, 2020 at 11:19:16AM -0500, Pavel Tatashin wrote:
> > > &
ote:
> > > > On Thu, Jan 09, 2020 at 09:46:55AM +0900, AKASHI Takahiro wrote:
> > > > > On Wed, Jan 08, 2020 at 05:48:39PM +, Will Deacon wrote:
> > > > > > On Mon, Dec 16, 2019 at 11:12:47AM +0900, AKASHI Takahiro wrote:
> > > > > > >
On Wed, Jan 08, 2020 at 05:48:39PM +, Will Deacon wrote:
> On Mon, Dec 16, 2019 at 11:12:47AM +0900, AKASHI Takahiro wrote:
> > Enabling crash dump (kdump) includes
> > * prepare contents of ELF header of a core dump file, /proc/vmcore,
> > using crash_prepare_elf64_hea
On Mon, Dec 16, 2019 at 09:16:06AM -0500, Masayoshi Mizuma wrote:
> On Mon, Dec 16, 2019 at 11:22:56AM +0530, Bhupesh Sharma wrote:
> > Thanks Masa,
[...]
> > Since this is an old thread, it would be useful for people looking at
> > the same, if you can add some comments/details about why you
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
Tested-and-reviewed-by: Bhupesh Sharma
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4
14, 2019)
* rebased to v5.4-rc7
* no functional changes
v1 (Sept 12, 2019)
* on top of v5.3-rc8
AKASHI Takahiro (2):
libfdt: include fdt_addresses.c
arm64: kexec_file: add crash dump support
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4
In the implementation of kexec_file_loaded-based kdump for arm64,
fdt_appendprop_addrrange() will be needed.
So include fdt_addresses.c in making libfdt.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
lib/Makefile| 2 +-
lib/fdt_addresses.c | 2 ++
2 files
I have forgot to address Bhupesh's comment below in my v3.
I'm going to repost my patch.
Thank you, Bhupesh, for your review.
-Takahiro Akashi
On Thu, Dec 05, 2019 at 02:14:14AM +0530, Bhupesh Sharma wrote:
> On 11/14/2019 10:45 AM, AKASHI Takahiro wrote:
> >Enabling crash dump (kdump)
In the implementation of kexec_file_loaded-based kdump for arm64,
fdt_appendprop_addrrange() will be needed.
So include fdt_addresses.c in making libfdt.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
lib/Makefile| 2 +-
lib/fdt_addresses.c | 2 ++
2 files
rebased to v5.5-rc1
* remove v2's patch#2 as the same fix has been applied
* Otherwise, no functional changes (since v1)
Changes in v2 (Nov 14, 2019)
* rebased to v5.4-rc7
* no functional changes
v1 (Sept 12, 2019)
* on top of v5.3-rc8
AKASHI Takahiro (2):
libfdt: include fdt_addresses.c
arm64: k
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4 -
arch/arm64/kernel/machin
Hi Prabhakar,
On Tue, Nov 19, 2019 at 12:02:46PM +0530, Prabhakar Kushwaha wrote:
> Hi Akashi,
>
> On Fri, Nov 15, 2019 at 7:29 AM AKASHI Takahiro
> wrote:
> >
> > Bhupesh,
> >
> > On Fri, Nov 15, 2019 at 01:24:17AM +0530, Bhupesh Sharma wrote:
> > >
Bhupesh,
On Fri, Nov 15, 2019 at 01:24:17AM +0530, Bhupesh Sharma wrote:
> Hi Akashi,
>
> On Wed, Nov 13, 2019 at 12:11 PM AKASHI Takahiro
> wrote:
> >
> > Hi Bhupesh,
> >
> > Do you have a corresponding patch for userspace tools,
> > including crash u
In the implementation of kexec_file_loaded-based kdump for arm64,
fdt_appendprop_addrrange() will be needed.
So include fdt_addresses.c in making libfdt.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
lib/Makefile| 2 +-
lib/fdt_addresses.c | 2 ++
2 files
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4 -
arch/arm64/kernel/machin
o v5.4-rc7
* no functional changes
AKASHI Takahiro (3):
libfdt: define UINT32_MAX in libfdt_env.h
libfdt: include fdt_addresses.c
arm64: kexec_file: add crash dump support
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4 -
arch/arm64/kernel/machine_ke
In the implementation of kexec_file_load-based kdump for arm64,
fdt_appendprop_addrrange() will be used, but fdt_addresses.c
will fail to compile due to missing UINT32_MAX.
So just define it in libfdt_env.h.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
include/linux
Hi Bhupesh,
Do you have a corresponding patch for userspace tools,
including crash util and/or makedumpfile?
Otherwise, we can't verify that a generated core file is
correctly handled.
Thanks,
-Takahiro Akashi
On Mon, Nov 11, 2019 at 01:31:19PM +0530, Bhupesh Sharma wrote:
> Changes since v3:
>
to keep reviewing my patch.
Thanks,
-Takahiro Akashi
On Thu, Sep 12, 2019 at 03:01:47PM +0900, AKASHI Takahiro wrote:
> This is the last piece of my kexec_file_load implementation for arm64.
> It is now ready for being merged as some relevant patch to dtc/libfdt[1]
> has finally been integrate
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4 -
arch/arm64/kernel/machin
In the implementation of kexec_file_loaded-based kdump for arm64,
fdt_appendprop_addrrange() will be needed.
So include fdt_addresses.c in making libfdt.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
lib/Makefile| 2 +-
lib/fdt_addresses.c | 2 ++
2 files
In the implementation of kexec_file_load-based kdump for arm64,
fdt_appendprop_addrrange() will be used, but fdt_addresses.c
will fail to compile due to missing UINT32_MAX.
So just define it in libfdt_env.h.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
include/linux
8-November/612641.html
AKASHI Takahiro (3):
libfdt: define UINT32_MAX in libfdt_env.h
libfdt: include fdt_addresses.c
arm64: kexec_file: add crash dump support
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/kexec_image.c| 4 -
arch/arm64/kernel/machine_kexec_fi
de or data,
and they are expected to be preserved across kexec'ing.
With this patch[1], kexec/kdump will be allowed to handle them properly.
[1] https://git.linaro.org/people/takahiro.akashi/kexec-tools.git arm64/resv_mem
AKASHI Takahiro (3):
kexec: add variant helper functions for handling memory regions
ar
ctly. Note that, for safety, unknown regions, in addition to
"reserved" ones, will also be excluded.
Signed-off-by: AKASHI Takahiro
---
kexec/arch/arm64/kexec-arm64.c | 146 -
1 file changed, 87 insertions(+), 59 deletions(-)
diff --git a/kexec/arch/arm64/kexec-
memory
ranges, using mem_regions_alloc_and_xxx() functions.
Signed-off-by: AKASHI Takahiro
---
kexec/arch/arm64/crashdump-arm64.c | 25 ++---
1 file changed, 10 insertions(+), 15 deletions(-)
diff --git a/kexec/arch/arm64/crashdump-arm64.c
b/kexec/arch/arm64/crashdump-arm64.
mem_regions_alloc_and_add() and mem_regions_alloc_and_exclude() are
functionally equivalent to, respectively, mem_regions_add() and
mem_regions_exclude() except the formers will re-allocate memory
dynamically when no more entries are available in 'ranges' array.
Signed-off-by: AKASHI Takahiro
# My kexec_file patch for arm64 is now merged in v5.0-rc1.
With this patch, kexec_file_load() system call is supported.
Signed-off-by: AKASHI Takahiro
---
kexec/arch/arm64/kexec-arm64.c| 10 +-
kexec/arch/arm64/kexec-elf-arm64.c| 9 +
kexec/arch/arm64/kexec-image
rt")
Signed-off-by: AKASHI Takahiro
---
arch/arm64/kernel/machine_kexec_file.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/machine_kexec_file.c
b/arch/arm64/kernel/machine_kexec_file.c
index 10e33860e47a..f2c211a6229b 100644
--- a/arch/arm64/kernel/
On Tue, Dec 11, 2018 at 10:09:07AM +, James Morse wrote:
> Hi Akashi,
>
> On 11/12/2018 06:17, AKASHI, Takahiro wrote:
> > On Fri, Dec 07, 2018 at 10:12:47AM +, James Morse wrote:
> >> On 06/12/2018 15:54, Will Deacon wrote:
> >>> On Thu, Dec 06, 2
On Tue, Dec 11, 2018 at 02:50:02PM +0900, AKASHI Takahiro wrote:
> On Fri, Nov 30, 2018 at 01:19:44PM +, Will Deacon wrote:
> > On Thu, Nov 15, 2018 at 02:52:55PM +0900, AKASHI Takahiro wrote:
> > > Adding "kaslr-seed" to dtb enables triggering kaslr, or
James,
On Fri, Dec 07, 2018 at 10:12:47AM +, James Morse wrote:
> Hi Akashi, Will,
>
> On 06/12/2018 15:54, Will Deacon wrote:
> > On Thu, Dec 06, 2018 at 08:47:04AM -0600, Rob Herring wrote:
> >> On Wed, Nov 14, 2018 at 11:52 PM AKASHI Takahiro
> >>
On Fri, Nov 30, 2018 at 01:19:44PM +, Will Deacon wrote:
> On Thu, Nov 15, 2018 at 02:52:55PM +0900, AKASHI Takahiro wrote:
> > Adding "kaslr-seed" to dtb enables triggering kaslr, or kernel virtual
> > address randomization, at secondary kernel boot. We always do
On Fri, Nov 30, 2018 at 01:21:14PM +, Will Deacon wrote:
> On Thu, Nov 15, 2018 at 02:52:54PM +0900, AKASHI Takahiro wrote:
> > With this patch, kernel verification can be done without IMA security
> > subsystem enabled. Turn on CONFIG_KEXEC_VERIFY_SIG instead.
> >
&g
oad_crashdump_segments: elfcorehdr 0xbfff-0xbfff33ff
>get_cells_size: #address-cells:2 #size-cells:2
>cells_size_fitted: bfff-bfff33ff
>cells_size_fitted: 8ee0-bfff
>setup_2nd_dtb: /chosen node not found - can't create dtb for dump kernel:
> FDT_ERR_NO
CONFIG_EFI is enabled, we adopt this format for kernel signing.
You can create a signed kernel image with:
$ sbsign --key ${KEY} --cert ${CERT} Image
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/Kconfig
by passing "nokaslr" as a kernel boot argument.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/machine_kexec_file.c | 46 +-
1 file changed, 45 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/machine_kex
is null.
Signed-off-by: AKASHI Takahiro
Reviewed-by: James Morse
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/cpu-reset.S | 8
arch/arm64/kernel/machine_kexec.c | 12 ++--
arch/arm64/kernel/relocate_kernel.S | 3 ++-
3 files changed, 16 insertions(+), 7
ddr(cursor, mz->peaddr, sizeof(*pe));
Signed-off-by: AKASHI Takahiro
Reviewed-by: Ard Biesheuvel
Cc: David Howells
Cc: Vivek Goyal
Cc: Herbert Xu
Cc: David S. Miller
---
include/linux/pe.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/pe.h b/include/lin
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
Cc: Rob Herring
Cc: Frank Rowand
Cc: devicet...@vger.kernel.org
---
arch/arm64/include/asm/kexec.h | 4 ++
arch/arm64/kernel/
, instead, the dtb
presented by the original boot loader is reused.
arch_kimage_kernel_post_load_cleanup() is responsible for freeing arm64-
specific data allocated in load_other_segments().
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch
Those helper functions for MMFR0 register will be used later by kexec_file
loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/cpufeature.h | 48 +
1 file changed, 48 insertions(+)
diff
, you must have IMA enforced with, at least, the following
security policy:
"appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig"
See more details about IMA here:
https://sourceforge.net/p/linux-ima/wiki/Home/
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Modify arm64/Kconfig to enable kexec_file_load support.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/Kconfig | 9 +
arch/arm64/kernel/Makefile | 3 ++-
arch/arm64/kernel/machine_kexec_file.c
Those image head's flags will be used later by kexec_file loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/include/asm/image.h | 59 ++
arch/arm64/kernel/head.S | 3 +-
arch/arm64/kernel
Added function, fdt_setprop_reg(), will be used later to handle
kexec-specific property in arm64's kexec_file implementation.
It will possibly be merged into libfdt in the future.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
Cc: devicet...@vger.kernel.org
---
include/linux
(), the current
kexec_walk_memblock() won't work for kdump either in this form, this will
be fixed in the next patch.
Signed-off-by: AKASHI Takahiro
Cc: "Eric W. Biederman"
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Acked-by: James Morse
---
arch/powerpc/kernel/machine_kexec_file
Change this function from static to global so that arm64 can implement
its own arch_kimage_file_post_load_cleanup() later using
kexec_image_post_load_cleanup_default().
Signed-off-by: AKASHI Takahiro
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
include/linux/kexec.h | 1 +
kernel
In kdump case, there exists only one dedicated memblock region as usable
memory (crashk_res). With this patch, kexec_walk_memblock() runs a given
callback function on this region.
Cosmetic change: 0 to MEMBLOCK_NONE at for_each_free_mem_range*()
Signed-off-by: AKASHI Takahiro
Acked-by: Dave
her on system resource or memblock, will be
put in one common place so that it will satisfy all the architectures'
need.
Signed-off-by: AKASHI Takahiro
Reviewed-by: Philipp Rudo
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
arch/s390/ker
The initial user of this system call number is arm64.
Signed-off-by: AKASHI Takahiro
Acked-by: Arnd Bergmann
---
include/uapi/asm-generic/unistd.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/asm-generic/unistd.h
b/include/uapi/asm-generic/unistd.h
index
(at least, for this series)
Patch #1 to #10 are essential part for KEXEC_FILE support
(additionally allowing for IMA-based verification):
Patch #1 to #6 are all preparatory patches on generic side.
Patch #7 to #11 are to enable kexec_file_load on arm64.
Patch #12 to #13 are for KEXEC_VERIFY_SIG (
d.
Thank you.
-Takahiro Akashi
> [1]. http://lists.infradead.org/pipermail/kexec/2018-October/021746.html
>
> Cc: Simon Horman
> Cc: AKASHI Takahiro
> Reported-by: Vicente Bergas
> Signed-off-by: Bhupesh Sharma
> ---
> kexec/dt-ops.c | 2 +-
> 1 file changed, 1 inse
Mark,
On Tue, Oct 09, 2018 at 04:28:00PM +0100, Mark Rutland wrote:
> On Fri, Sep 28, 2018 at 03:48:36PM +0900, AKASHI Takahiro wrote:
> > This patch provides kexec_file_ops for "Image"-format kernel. In this
> > implementation, a binary is always loaded with
Mark,
On Tue, Oct 09, 2018 at 04:04:05PM +0100, Mark Rutland wrote:
> On Tue, Oct 02, 2018 at 04:59:40PM +0900, AKASHI Takahiro wrote:
> > Hi Mark,
> >
> > On Mon, Oct 01, 2018 at 01:52:26PM +0100, Mark Rutland wrote:
> > > On Fri, Sep 28, 2018 at 03:48:32P
Frank, Rob,
On Tue, Oct 09, 2018 at 10:47:15AM -0700, Frank Rowand wrote:
> On 10/08/18 17:37, AKASHI, Takahiro wrote:
> > On Fri, Oct 05, 2018 at 08:23:57AM -0500, Rob Herring wrote:
> >> On Thu, Oct 4, 2018 at 10:07 PM AKASHI, Takahiro
> >> wrote:
> >>
Frank,
On Tue, Oct 09, 2018 at 11:02:29AM -0700, Frank Rowand wrote:
> On 10/04/18 22:06, AKASHI, Takahiro wrote:
> > Frank,
> >
> > # I haven't reply to your comments.
> >
> > On Fri, Sep 28, 2018 at 02:13:58PM -0700, Frank Rowand wrote:
> >> On 09/28
On Fri, Oct 05, 2018 at 08:23:57AM -0500, Rob Herring wrote:
> On Thu, Oct 4, 2018 at 10:07 PM AKASHI, Takahiro
> wrote:
> >
> > Rob,
> >
> > # I haven't replied to this comment yet.
> >
> > On Fri, Sep 28, 2018 at 08:44:42AM -0500, Rob Herring wrote:
&
Frank,
# I haven't reply to your comments.
On Fri, Sep 28, 2018 at 02:13:58PM -0700, Frank Rowand wrote:
> On 09/28/18 06:44, Rob Herring wrote:
> > +David Gibson
> >
> > On Fri, Sep 28, 2018 at 1:48 AM AKASHI Takahiro
> > wrote:
> >>
> >> These
Rob,
# I haven't replied to this comment yet.
On Fri, Sep 28, 2018 at 08:44:42AM -0500, Rob Herring wrote:
> +David Gibson
>
> On Fri, Sep 28, 2018 at 1:48 AM AKASHI Takahiro
> wrote:
> >
> > These functions will be used later to handle kexec-specific properties
&
On Tue, Oct 02, 2018 at 02:47:10PM +1000, David Gibson wrote:
> On Fri, Sep 28, 2018 at 08:44:42AM -0500, Rob Herring wrote:
> > +David Gibson
> >
> > On Fri, Sep 28, 2018 at 1:48 AM AKASHI Takahiro
> > wrote:
> > >
> > > These functions will be u
Hi Mark,
On Mon, Oct 01, 2018 at 01:52:26PM +0100, Mark Rutland wrote:
> On Fri, Sep 28, 2018 at 03:48:32PM +0900, AKASHI Takahiro wrote:
> > Those image head's flags will be used later by kexec_file loader.
> >
> > Signed-off-by: AKASHI Takahiro
> > Cc: Catalin M
On Sun, Sep 30, 2018 at 06:08:34PM +0800, Dave Young wrote:
> Hi AKASHI,
>
> On 09/28/18 at 03:48pm, AKASHI Takahiro wrote:
> > Memblock list is another source for usable system memory layout.
> > So move powerpc's arch_kexec_walk_mem() to common code so that oth
CONFIG_EFI is enabled, we adopt this format for kernel signing.
You can create a signed kernel image with:
$ sbsign --key ${KEY} --cert ${CERT} Image
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/Kconfig
ddr(cursor, mz->peaddr, sizeof(*pe));
Signed-off-by: AKASHI Takahiro
Reviewed-by: Ard Biesheuvel
Cc: David Howells
Cc: Vivek Goyal
Cc: Herbert Xu
Cc: David S. Miller
---
include/linux/pe.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/pe.h b/include/lin
by passing "nokaslr" as a kernel boot argument.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/machine_kexec_file.c | 45 ++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/kernel/machine_kex
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
Cc: Rob Herring
Cc: Frank Rowand
Cc: devicet...@vger.kernel.org
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/
is null.
Signed-off-by: AKASHI Takahiro
Reviewed-by: James Morse
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/cpu-reset.S | 8
arch/arm64/kernel/machine_kexec.c | 12 ++--
arch/arm64/kernel/relocate_kernel.S | 3 ++-
3 files changed, 16 insertions(+), 7
, instead, the dtb
presented by the original boot loader is reused.
arch_kimage_kernel_post_load_cleanup() is responsible for freeing arm64-
specific data allocated in load_other_segments().
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch
, you must have IMA enforced with, at least, the following
security policy:
"appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig"
See more details about IMA here:
https://sourceforge.net/p/linux-ima/wiki/Home/
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Modify arm64/Kconfig to enable kexec_file_load support.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/Kconfig | 9 +
arch/arm64/kernel/Makefile | 3 ++-
arch/arm64/kernel/machine_kexec_file.c
Those helper functions for MMFR0 register will be used later by kexec_file
loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/cpufeature.h | 48 +
1 file changed, 48 insertions(+)
diff
In kdump case, there exists only one dedicated memblock region as usable
memory (crashk_res). With this patch, kexec_walk_memblock() runs a given
callback function on this region.
Cosmetic change: 0 to MEMBLOCK_NONE at for_each_free_mem_range*()
Signed-off-by: AKASHI Takahiro
Cc: Dave Young
Cc
Those image head's flags will be used later by kexec_file loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/include/asm/boot.h | 15 +++
arch/arm64/kernel/head.S | 2 +-
2 files changed, 16 insertions(+), 1
These functions will be used later to handle kexec-specific properties
in arm64's kexec_file implementation.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
Cc: devicet...@vger.kernel.org
---
drivers/of/fdt.c | 56 ++
include/linux
her on system resource or memblock, will be
put in one common place so that it will satisfy all the architectures'
need.
Signed-off-by: AKASHI Takahiro
Reviewed-by: Philipp Rudo
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
arch/s390/ker
Change this function from static to global so that arm64 can implement
its own arch_kimage_file_post_load_cleanup() later using
kexec_image_post_load_cleanup_default().
Signed-off-by: AKASHI Takahiro
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
include/linux/kexec.h | 1 +
kernel
(), the current
kexec_walk_memblock() won't work for kdump either in this form, this will
be fixed in the next patch.
Signed-off-by: AKASHI Takahiro
Cc: "Eric W. Biederman"
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Acked-by: James Morse
---
arch/powerpc/kernel/machine_kexec_file
pport (at least, for this series)
Patch #1 to #10 are essential part for KEXEC_FILE support
(additionally allowing for IMA-based verification):
Patch #1 to #6 are all preparatory patches on generic side.
Patch #7 to #11 are to enable kexec_file_load on arm64.
Patch #12 to #13 are for KEXEC_V
The initial user of this system call number is arm64.
Signed-off-by: AKASHI Takahiro
Acked-by: Arnd Bergmann
---
include/uapi/asm-generic/unistd.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/asm-generic/unistd.h
b/include/uapi/asm-generic/unistd.h
index
means most or all of my previous suggested function name changes are
> > no longer
> > useful.
> >
> > Please add devicet...@vger.kernel.org to the next version of this patch and
> > to
> > the patches that use the functions in this patch.
> >
>
Frank,
Thank you for the comments. I will address all of them, but
have one question:
On Fri, Sep 07, 2018 at 12:53:58PM -0700, Frank Rowand wrote:
> On 09/07/18 01:00, AKASHI Takahiro wrote:
> > These functions will be used later to handle kexec-specific properties
> > in arm
by passing "nokaslr" as a kernel boot argument.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/machine_kexec_file.c | 45 ++
1 file changed, 45 insertions(+)
diff --git a/arch/arm64/kernel/machine_kex
In kdump case, there exists only one dedicated memblock region as usable
memory (crashk_res). With this patch, kexec_walk_memblock() runs a given
callback function on this region.
Cosmetic change: 0 to MEMBLOCK_NONE at for_each_free_mem_range*()
Signed-off-by: AKASHI Takahiro
Cc: Dave Young
Cc
her on system resource or memblock, will be
put in one common place so that it will satisfy all the architectures'
need.
Signed-off-by: AKASHI Takahiro
Reviewed-by: Philipp Rudo
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
arch/s390/ker
CONFIG_EFI is enabled, we adopt this format for kernel signing.
You can create a signed kernel image with:
$ sbsign --key ${KEY} --cert ${CERT} Image
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/Kconfig
ddr(cursor, mz->peaddr, sizeof(*pe));
Signed-off-by: AKASHI Takahiro
Reviewed-by: Ard Biesheuvel
Cc: David Howells
Cc: Vivek Goyal
Cc: Herbert Xu
Cc: David S. Miller
---
include/linux/pe.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/pe.h b/include/lin
is null.
Signed-off-by: AKASHI Takahiro
Reviewed-by: James Morse
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/kernel/cpu-reset.S | 8
arch/arm64/kernel/machine_kexec.c | 12 ++--
arch/arm64/kernel/relocate_kernel.S | 3 ++-
3 files changed, 16 insertions(+), 7
y range
to be used by crash dump kernel and the header's location
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/kexec.h | 4 +
arch/arm64/kernel/machine_kexec_file.c | 113 -
2 files cha
, you must have IMA enforced with, at least, the following
security policy:
"appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig"
See more details about IMA here:
https://sourceforge.net/p/linux-ima/wiki/Home/
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
, instead, the dtb
presented by the original boot loader is reused.
arch_kimage_kernel_post_load_cleanup() is responsible for freeing arm64-
specific data allocated in load_other_segments().
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch
Modify arm64/Kconfig to enable kexec_file_load support.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/Kconfig | 9 +
arch/arm64/kernel/Makefile | 3 ++-
arch/arm64/kernel/machine_kexec_file.c
Those helper functions for MMFR0 register will be used later by kexec_file
loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: James Morse
---
arch/arm64/include/asm/cpufeature.h | 48 +
1 file changed, 48 insertions(+)
diff
Those image head's flags will be used later by kexec_file loader.
Signed-off-by: AKASHI Takahiro
Cc: Catalin Marinas
Cc: Will Deacon
Acked-by: James Morse
---
arch/arm64/include/asm/boot.h | 15 +++
arch/arm64/kernel/head.S | 2 +-
2 files changed, 16 insertions(+), 1
These functions will be used later to handle kexec-specific properties
in arm64's kexec_file implementation.
Signed-off-by: AKASHI Takahiro
Cc: Rob Herring
Cc: Frank Rowand
---
drivers/of/fdt.c | 62 --
include/linux/of_fdt.h | 10 +--
2 files
Change this function from static to global so that arm64 can implement
its own arch_kimage_file_post_load_cleanup() later using
kexec_image_post_load_cleanup_default().
Signed-off-by: AKASHI Takahiro
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
---
include/linux/kexec.h | 1 +
kernel
(), the current
kexec_walk_memblock() won't work for kdump either in this form, this will
be fixed in the next patch.
Signed-off-by: AKASHI Takahiro
Cc: "Eric W. Biederman"
Acked-by: Dave Young
Cc: Vivek Goyal
Cc: Baoquan He
Acked-by: James Morse
---
arch/powerpc/kernel/machine_kexec_file
The initial user of this system call number is arm64.
Signed-off-by: AKASHI Takahiro
Acked-by: Arnd Bergmann
---
include/uapi/asm-generic/unistd.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/asm-generic/unistd.h
b/include/uapi/asm-generic/unistd.h
index
-check code from purgatory
* modify purgatory asm to remove arch_kexec_apply_relocations_add()
* drop older kernel support
* drop vmlinux support (at least, for this series)
Patch #1 to #10 are essential part for KEXEC_FILE support
(additionally allowing for IMA-based verification):
Patch #1 to #6
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