Hi Song
On Fri, 8 Sept 2023 at 23:48, Song Liu wrote:
>
> Hi Ricardo,
>
> Thanks for your kind reply.
>
> On Fri, Sep 8, 2023 at 2:18 PM Ricardo Ribalda wrote:
> >
> > Hi Song
> >
> > On Fri, 8 Sept 2023 at 01:08, Song Liu wrote:
> > >
>
Hi Song
On Fri, 8 Sept 2023 at 01:08, Song Liu wrote:
>
> Hi Ricardo and folks,
>
> On Fri, May 19, 2023 at 7:48 AM Ricardo Ribalda wrote:
> >
> > When upreving llvm I realised that kexec stopped working on my test
> > platform.
> >
> > The reason seem
When upreving llvm I realised that kexec stopped working on my test
platform.
The reason seems to be that due to PGO there are multiple .text sections
on the purgatory, and kexec does not supports that.
Signed-off-by: Ricardo Ribalda
---
Changes in v7:
- Fix $SUBJECT of riscv patch
- Rename PGO
ecause of this, the system crashes immediately after:
kexec_core: Starting new kernel
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Reviewed-by: Ross Zwisler
Reviewed-by: Steven Rostedt (Google)
Reviewed-by: Philipp Rudo
Signed-off-by:
Signed-off-by: Ricardo Ribalda
---
arch/riscv/purgatory/Makefile | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/riscv/purgatory/Makefile b/arch/riscv/purgatory/Makefile
index 5730797a6b40..bd2e27f82532 100644
--- a/arch/riscv/purgatory/Makefile
+++ b/arch/riscv/purgatory/Makefile
@@ -3
If profile-guided optimization is enabled, the purgatory ends up with
multiple .text sections.
This is not supported by kexec and crashes the system.
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Signed-off-by: Ricardo Ribalda
If profile-guided optimization is enabled, the purgatory ends up with
multiple .text sections.
This is not supported by kexec and crashes the system.
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Signed-off-by: Ricardo Ribalda
Hi Conor
On Mon, 1 May 2023 at 19:41, Conor Dooley wrote:
>
> Hey Ricardo,
>
> On Mon, May 01, 2023 at 02:38:22PM +0200, Ricardo Ribalda wrote:
> > If PGO is enabled, the purgatory ends up with multiple .text sections.
> > This is not supported by kexec and crashes the
at 07:18:12PM +0200, Ricardo Ribalda wrote:
> > On Mon, 1 May 2023 at 18:19, Nick Desaulniers
> > wrote:
> > >
> > > On Mon, May 1, 2023 at 5:39 AM Ricardo Ribalda
> > > wrote:
> > > >
> > > > If PGO is enabled, the purgator
:
>
> On Mon, May 1, 2023 at 5:39 AM Ricardo Ribalda wrote:
> >
> > If PGO is enabled, the purgatory ends up with multiple .text sections.
> > This is not supported by kexec and crashes the system.
> >
> > Cc: sta...@vger.kernel.org
> > Fixes: 93
If PGO is enabled, the purgatory ends up with multiple .text sections.
This is not supported by kexec and crashes the system.
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Signed-off-by: Ricardo Ribalda
---
arch/riscv/purgator
When upreving llvm I realised that kexec stopped working on my test
platform.
The reason seems to be that due to PGO there are multiple .text sections
on the purgatory, and kexec does not supports that.
Signed-off-by: Ricardo Ribalda
---
Changes in v6:
- Replace linker script with Makefile rule
If PGO is enabled, the purgatory ends up with multiple .text sections.
This is not supported by kexec and crashes the system.
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Signed-off-by: Ricardo Ribalda
---
arch/powerpc/purgator
If PGO is enabled, the purgatory ends up with multiple .text sections.
This is not supported by kexec and crashes the system.
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Signed-off-by: Ricardo Ribalda
---
arch/x86/purgatory/Ma
ecause of this, the system crashes immediately after:
kexec_core: Starting new kernel
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Reviewed-by: Ross Zwisler
Reviewed-by: Steven Rostedt (Google)
Reviewed-by: Philipp Rudo
Signed-off-by:
ct llvm quickly. If it
> requires profile data, you'll need to share it, since CrOS engineers
> still have not posted public documentation on AutoFDO as I have
> repeatedly asked for.
The simplest test is to run:
$readelf -S arch/x86/purgatory/purgatory.ro | grep "] \.text"
Hi Ross
On Fri, 31 Mar 2023 at 21:14, Ross Zwisler wrote:
>
> On Thu, Mar 30, 2023 at 3:45 AM Ricardo Ribalda wrote:
> > Make sure that the .text section is not divided in multiple overlapping
> > sections. This is not supported by kexec_file.
>
> How does this int
Hi Simon
Thanks for your review!
On Thu, 30 Mar 2023 at 09:49, Simon Horman wrote:
>
> On Mon, Mar 27, 2023 at 05:06:53PM +0200, Ricardo Ribalda wrote:
> > Clang16 links the purgatory text in two sections:
> >
> > [ 1] .text PROGBITS 00
Make sure that the .text section is not divided in multiple overlapping
sections. This is not supported by kexec_file.
Signed-off-by: Ricardo Ribalda
---
arch/x86/purgatory/.gitignore| 2 ++
arch/x86/purgatory/Makefile | 20 +
arch/x86/purgatory/kexec-purgatory.S
When upreving llvm I realised that kexec stopped working on my test
platform. This patch fixes it.
Signed-off-by: Ricardo Ribalda
---
Changes in v5:
- Add warning when multiple text sections are found. Thanks Simon!
- Add Fixes tag.
- Link to v4:
https://lore.kernel.org/r/20230321-kexec_clang16
rashes immediately after:
kexec_core: Starting new kernel
Cc: sta...@vger.kernel.org
Fixes: 930457057abe ("kernel/kexec_file.c: split up __kexec_load_puragory")
Reviewed-by: Ross Zwisler
Signed-off-by: Ricardo Ribalda
---
kernel/kexec_file.c | 14 +-
1 file changed, 13
When upreving llvm I realised that kexec stopped working on my test
platform. This patch fixes it.
To: Eric Biederman
Cc: Baoquan He
Cc: Philipp Rudo
Cc: kexec@lists.infradead.org
Cc: linux-ker...@vger.kernel.org
Cc: Ross Zwisler
Cc: Steven Rostedt
Signed-off-by: Ricardo Ribalda
Make sure that the .text section is not divided in multiple overlapping
sections. This is not supported by kexec_file.
Signed-off-by: Ricardo Ribalda
---
arch/x86/purgatory/.gitignore| 2 ++
arch/x86/purgatory/Makefile | 20 +
arch/x86/purgatory/kexec-purgatory.S
rashes inmediatly after:
kexec_core: Starting new kernel
Cc: sta...@vger.kernel.org
Reviewed-by: Ross Zwisler
Signed-off-by: Ricardo Ribalda
---
kernel/kexec_file.c | 13 -
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
Hi Philipp
On Fri, 24 Mar 2023 at 17:00, Philipp Rudo wrote:
>
> Hi Ricardo,
>
> On Wed, 22 Mar 2023 20:09:21 +0100
> Ricardo Ribalda wrote:
>
> > Clang16 links the purgatory text in two sections:
> >
> > [ 1] .text PROGBIT
+0100, Ricardo Ribalda wrote:
> > Clang16 links the purgatory text in two sections:
> >
> > [ 1] .text PROGBITS 0040
> >11a1 AX 0 0 16
> > [ 2] .rela.textRELA
rashes inmediatly after:
kexec_core: Starting new kernel
Signed-off-by: Ricardo Ribalda
---
kexec: Fix kexec_file_load for llvm16
When upreving llvm I realised that kexec stopped working on my test
platform. This patch fixes it.
To: Eric Biederman
Cc: Baoquan He
Cc: Philipp Rudo
Cc:
rashes inmediatly after:
kexec_core: Starting new kernel
Signed-off-by: Ricardo Ribalda
---
kexec: Fix kexec_file_load for llvm16
When upreving llvm I realised that kexec stopped working on my test
platform. This patch fixes it.
To: Eric Biederman
Cc: Baoquan He
Cc: Philipp Rudo
Cc:
Hi Steven
On Wed, 22 Mar 2023 at 15:34, Steven Rostedt wrote:
>
> On Tue, Mar 21, 2023 at 12:49:08PM +0100, Ricardo Ribalda wrote:
> > Clang16 links the purgatory text in two sections:
> >
> > [ 1] .text PROGBITS 0040
>
rashes inmediatly after:
kexec_core: Starting new kernel
Signed-off-by: Ricardo Ribalda
---
kexec: Support purgatories with .text.hot sections
Clang16 links the purgatory text in two sections:
[ 1] .text PROGBITS 0040
00
,
a malitious user will have small chances to replace that kernel with a
different one, even if they can trigger timeouts on the disk where the
panic kernel lives.
Reviewed-by: Steven Rostedt (Google)
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 18 ++
include
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Reviewed-by: Steven Rostedt (Google)
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git
: kexec@lists.infradead.org
Cc: Joel Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
To: Philipp Rudo
To: Guilherme G. Piccoli
Cc: Bagas Sanjaya
Cc: Petr Tesarik
Cc: Baoquan He
Signed-off-by: Ricardo Ribalda
---
Changes in v6:
- Fix kexec type on kexec_file
Both syscalls (kexec and kexec_file) do the same check, lets factor it
out.
Reviewed-by: Steven Rostedt (Google)
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 ++-
kernel/kexec.c| 2 +-
kernel/kexec_core.c | 11 ++-
kernel/kexec_file.c | 2 +-
4 files
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/sysctl
: kexec@lists.infradead.org
Cc: Joel Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
To: Philipp Rudo
To: Guilherme G. Piccoli
Signed-off-by: Ricardo Ribalda
---
Changes in v5:
- Remove maxlen from ctl_table. Thanks Steven!
- Link to v4:
https://lore.kernel.org
Both syscalls (kexec and kexec_file) do the same check, lets factor it
out.
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 ++-
kernel/kexec.c| 2 +-
kernel/kexec_core.c | 11 ++-
kernel/kexec_file.c | 2 +-
4 files changed, 14 insertions(+), 4 deletions
Add two parameters to specify how many times a kexec kernel can be loaded.
The sysadmin can set different limits for kexec panic and kexec reboot
kernels.
The value can be modified at runtime via sysctl, but only with a value
smaller than the current one (except -1).
Signed-off-by: Ricardo
: kexec@lists.infradead.org
Cc: Joel Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
To: Philipp Rudo
To: Guilherme G. Piccoli
Signed-off-by: Ricardo Ribalda
---
Changes in v4 (Thanks Steven!):
- Uses sysctl instead or module_parameters
- Pass image type instead
Both syscalls (kexec and kexec_file) do the same check, lets factor it
out.
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 ++-
kernel/kexec.c| 2 +-
kernel/kexec_core.c | 11 ++-
kernel/kexec_file.c | 2 +-
4 files changed, 14 insertions(+), 4 deletions
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/sysctl
Add two parameters to specify how many times a kexec kernel can be loaded.
The sysadmin can set different limits for kexec panic and kexec reboot
kernels.
The value can be modified at runtime via sysctl, but only with a value
smaller than the current one (except -1).
Signed-off-by: Ricardo
23:05:45 +0100
> Ricardo Ribalda wrote:
>
> I hate to be the grammar police, but..
>
> > Add two parameter to specify how many times a kexec kernel can be loaded.
>
>"parameters"
>
> >
> > The sysadmin can set different limits for kexec pa
Both syscalls (kexec and kexec_file) do the same check, lets factor it
out.
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 ++-
kernel/kexec.c| 2 +-
kernel/kexec_core.c | 11 ++-
kernel/kexec_file.c | 2 +-
4 files changed, 14 insertions(+), 4 deletions
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/sysctl
Add two parameter to specify how many times a kexec kernel can be loaded.
The sysadmin can set different limits for kexec panic and kexec reboot
kernels.
The value can be modified at runtime via sysfs, but only with a value
smaller than the current one (except -1).
Signed-off-by: Ricardo
Hi Joel
Thanks for looking into this
On Thu, 15 Dec 2022 at 20:16, Joel Fernandes wrote:
>
> Hi Ricardo,
>
> On Thu, Dec 08, 2022 at 05:38:02PM +0100, Ricardo Ribalda wrote:
> > Add two parameter to specify how many times a kexec kernel can be loaded.
> >
> >
: kexec@lists.infradead.org
Cc: Joel Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
To: Philipp Rudo
To: Guilherme G. Piccoli
Signed-off-by: Ricardo Ribalda
---
Changes in v3:
- s/paramter/parameter/ Thanks Ghilherme!
- s/permited/permitted/ Thanks Joel!
- Link
> I actually like this idea :-)
In case you missed it. I sent an initial implementation of this at
https://lore.kernel.org/lkml/20221114-disable-kexec-reset-v2-0-c498313c1...@chromium.org/
Regards!
>
> -- Steve
--
Ricardo Ribalda
___
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
Both syscalls (kexec and kexec_file) do the same check, lets factor it
out.
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 ++-
kernel/kexec.c| 2 +-
kernel/kexec_core.c | 11 ++-
kernel/kexec_file.c | 2 +-
4 files changed, 14 insertions(+), 4 deletions
Add two parameter to specify how many times a kexec kernel can be loaded.
The sysadmin can set different limits for kexec panic and kexec reboot
kernels.
The value can be modified at runtime via sysfs, but only with a value
smaller than the current one (except -1).
Signed-off-by: Ricardo
: kexec@lists.infradead.org
Cc: Joel Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
To: Philipp Rudo
Signed-off-by: Ricardo Ribalda
---
Changes in v2:
- Instead of kexec_reboot_disabled, add two new counters (Thanks Philipp!)
- Link to v1:
https
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Signed-off-by: Ricardo Ribalda
---
Documentation/admin-guide/sysctl/kernel.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/admin-guide/sysctl
Hi Rafael
On Fri, 2 Dec 2022 at 18:48, Rafael J. Wysocki wrote:
>
> On Thu, Dec 1, 2022 at 12:08 PM Ricardo Ribalda wrote:
> >
> > Add a way to let the drivers know if the processes are frozen.
> >
> > This is needed by drivers that are waiting for processes to
Hi Oliver
On Thu, 1 Dec 2022 at 14:22, 'Oliver Neukum' via Chromeos Kdump
wrote:
>
> On 01.12.22 14:03, Ricardo Ribalda wrote:
>
> Hi,
>
> > This patchset does not modify this behaviour. It simply fixes the
> > stall for kexec().
> >
> > The patch that
Hi Oliver
Thanks for your review
On Thu, 1 Dec 2022 at 13:29, Oliver Neukum wrote:
>
> On 01.12.22 12:08, Ricardo Ribalda wrote:
> > If we are shutting down due to kexec and the userspace is frozen, the
> > system will stall forever waiting for userspace to complete.
&
: 83bfc7e793b5 ("ASoC: SOF: core: unregister clients and machine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
---
sound/soc/sof/core.c | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 3e6141d03770..9587b6a85
Fixes: 83bfc7e793b5 ("ASoC: SOF: core: unregister clients and machine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
sdad
---
include/linux/freezer.h | 3 ++-
kernel/freezer.c| 3 +--
kernel/power/process.c | 24
3 files changed, 23 insert
chine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
---
arch/powerpc/platforms/pseries/vio.c | 2 +-
arch/x86/kernel/cpu/mshyperv.c | 6 +++---
arch/x86/xen/enlighten_hvm.c | 2 +-
drivers/firmware/efi/efi.c | 2 +-
drivers/pci/pci-driver.c
: kexec@lists.infradead.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux-hyp...@vger.kernel.org
Cc: xen-de...@lists.xenproject.org
Cc: linux-...@vger.kernel.org
Cc: linux-...@vger.kernel.org
Cc: linux...@vger.kernel.org
Signed-off-by: Ricardo Ribalda
---
Changes in v8:
- Wrap pm_freezing and kex
("ASoC: SOF: core: unregister clients and machine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
---
include/linux/kexec.h | 3 +++
kernel/kexec_core.c | 5 +
2 files changed, 8 insertions(+)
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 41a686996aaa..c2
ostedt
Cc: sta...@vger.kernel.org
Cc: sound-open-firmw...@alsa-project.org
Cc: alsa-de...@alsa-project.org
Cc: linux-ker...@vger.kernel.org
Cc: kexec@lists.infradead.org
Signed-off-by: Ricardo Ribalda
---
Changes in v7:
- Fix commit message (Thanks Pierre-Louis).
- Link to v6:
https://lore.ke
core: unregister clients and machine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
---
sound/soc/sof/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 3e6141d03770..4301f347bb90 100644
--- a/sound/soc/sof/core.c
+
ostedt
Cc: sta...@vger.kernel.org
Cc: sound-open-firmw...@alsa-project.org
Cc: alsa-de...@alsa-project.org
Cc: linux-ker...@vger.kernel.org
Cc: kexec@lists.infradead.org
Signed-off-by: Ricardo Ribalda
---
Changes in v6:
- Check if we are in kexec with the userspace frozen.
- Link to v5:
https://lore.
Drivers running .shutdown() might want to wait for userspace to complete
before exiting.
If userspace is frozen and we are running kexec they will stall the
computer.
Add a way for them to figure out if they should just skip waiting for
userspace.
Signed-off-by: Ricardo Ribalda
---
include
ients and machine drivers
in .shutdown")
Signed-off-by: Ricardo Ribalda
---
sound/soc/sof/core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 3e6141d03770..4301f347bb90 100644
--- a/sound/soc/sof/core.c
+++ b/sou
Hi Philipp
Thanks for your review.
On Mon, 28 Nov 2022 at 18:00, Philipp Rudo wrote:
>
> Hi Ricardo,
>
> On Thu, 24 Nov 2022 23:23:36 +0100
> Ricardo Ribalda wrote:
>
> > Usually crash_image is defined statically via the crashkernel parameter
> > or DT.
&
Hi Baoquan
On Fri, 25 Nov 2022 at 08:45, Baoquan He wrote:
>
> On 11/25/22 at 08:26am, Ricardo Ribalda wrote:
> > Hi Baoquan
> >
> > On Fri, 25 Nov 2022 at 08:15, Baoquan He wrote:
> > >
> > > On 11/25/22 at 06:52am, Ricardo Ribalda wrote:
> >
Hi
On Fri, 25 Nov 2022 at 08:27, Baoquan He wrote:
>
> On 11/25/22 at 06:52am, Ricardo Ribalda wrote:
> > Hi Baoquan
> >
> > Thanks for your review!
> >
> > On Fri, 25 Nov 2022 at 03:58, Baoquan He wrote:
> > >
> > > On 11/24/22 at 11:23
Hi Baoquan
On Fri, 25 Nov 2022 at 08:15, Baoquan He wrote:
>
> On 11/25/22 at 06:52am, Ricardo Ribalda wrote:
> > Hi Baoquan
> >
> > Thanks for your review!
> >
> > On Fri, 25 Nov 2022 at 03:58, Baoquan He wrote:
> > >
> > > On 11/24
Hi Baoquan
Thanks for your review!
On Fri, 25 Nov 2022 at 03:58, Baoquan He wrote:
>
> On 11/24/22 at 11:23pm, Ricardo Ribalda wrote:
> > Usually crash_image is defined statically via the crashkernel parameter
> > or DT.
> >
> > But if the crash kernel i
Hi Philipp
On Thu, 24 Nov 2022 at 16:01, Philipp Rudo wrote:
>
> On Thu, 24 Nov 2022 13:52:58 +0100
> Ricardo Ribalda wrote:
>
> > On Thu, 24 Nov 2022 at 12:40, Philipp Rudo wrote:
> > >
> > > Hi Ricardo,
> > >
> > > On Wed, 2
allocation of the crash_image if the crash_image is not
defined statically. Following the same memory allocation/validation path
that for the reboot kexec kernel.
Signed-off-by: Ricardo Ribalda
---
kexec: Enable runtime allocation of crash_image
To: Eric Biederman
Cc: kexec@lists.infradead.org
Cc
On Thu, 24 Nov 2022 at 12:40, Philipp Rudo wrote:
>
> Hi Ricardo,
>
> On Wed, 23 Nov 2022 09:58:08 +0100
> Ricardo Ribalda wrote:
>
> > Hi Philipp
> >
> > Thanks for your review.
> >
> > My scenario is a trusted system, where even if you are roo
:15:07 +0100
> Ricardo Ribalda wrote:
>
> > Hi Philipp
> >
> > Thanks for your review!
>
> happy to help.
>
> >
> > On Thu, 17 Nov 2022 at 16:07, Philipp Rudo wrote:
> > >
> > > Hi Ricardo,
> > >
> > > all in all I think
Hi Philipp
Thanks for your review!
On Thu, 17 Nov 2022 at 16:07, Philipp Rudo wrote:
>
> Hi Ricardo,
>
> all in all I think this patch makes sense. However, there is one point
> I don't like...
>
> On Mon, 14 Nov 2022 14:18:39 +0100
> Ricardo Ribalda wrote:
&
kexec_load_disabled affects both ``kexec_load`` and ``kexec_file_load``
syscalls. Make it explicit.
Signed-off-by: Ricardo Ribalda
diff --git a/Documentation/admin-guide/sysctl/kernel.rst
b/Documentation/admin-guide/sysctl/kernel.rst
index 98d1b198b2b4..97394bd9d065 100644
--- a/Documentation
Create a new toogle that disables LINUX_REBOOT_CMD_KEXEC, reducing the
attack surface to a system.
Without this toogle, an attacker can only reboot into a different kernel
if they can create a panic().
Signed-off-by: Ricardo Ribalda
diff --git a/Documentation/admin-guide/sysctl/kernel.rst
b
Fernandes (Google)
Cc: Sergey Senozhatsky
Cc: Steven Rostedt
Cc: Ross Zwisler
Signed-off-by: Ricardo Ribalda
---
Ricardo Ribalda (2):
Documentation: sysctl: Correct kexec_load_disabled
kexec: Introduce kexec_reboot_disabled
Documentation/admin-guide/sysctl/kernel.rst | 18
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