On 9/14/2023 9:54 AM, Sean Christopherson wrote:
Rework and rename "struct kvm_hva_range" into "kvm_mmu_notifier_range" so
that the structure can be used to handle notifications that operate on gfn
context, i.e. that aren't tied to a host virtual address.
Practically speaking, this is a nop for
On Wed, Sep 13, 2023 at 06:55:12PM -0700, Sean Christopherson wrote:
> +static struct folio *kvm_gmem_get_folio(struct file *file, pgoff_t index)
> +{
> + struct folio *folio;
> +
> + /* TODO: Support huge pages. */
> + folio = filemap_grab_folio(file->f_mapping, index);
> + if (IS_
On Thu, Sep 14, 2023 at 10:40:37PM -0700, Guenter Roeck wrote:
> It is really sad that the submitters of such "cleanup" patches can't be
> bothered
> to check what they are doing. They can't even be bothered to write a
> coccinelle
> script that would avoid pitfalls like this one, and they expect
The devm_clk_get() can return -EPROBE_DEFER error,
modify the error code to be -EINVAL is not correct, which
cause the -EPROBE_DEFER error is not correctly handled.
This patch is to fix the return error code.
Fixes: b86ef5367761 ("ASoC: fsl: Add Audio Mixer machine driver")
Signed-off-by: Shengji
On 14/09/23 6:52 pm, Michael Ellerman wrote:
Aditya Gupta writes:
Presently, while reading a vmcore, makedumpfile uses
`cur_cpu_spec.mmu_features` to decide whether the crashed system had
RADIX MMU or not.
Currently, makedumpfile fails to get the `cur_cpu_spec` symbol (unless
a vmlinux is p
On Wed, Sep 13, 2023 at 06:55:16PM -0700, Sean Christopherson wrote:
> +static void kvm_mmu_prepare_memory_fault_exit(struct kvm_vcpu *vcpu,
> + struct kvm_page_fault *fault)
> +{
> + kvm_prepare_memory_fault_exit(vcpu, fault->gfn << PAGE_SHIFT,
>
> On 15-Sep-2023, at 10:56 AM, Adrian Hunter wrote:
>
> On 15/09/23 08:24, Athira Rajeev wrote:
>> The testcase "Object code reading" fails in somecases
>> for "fs_something" sub test as below:
>>
>>Reading object code for memory address: 0xc00807f0142c
>>File is: /lib/modules/6.5
Update "struct dso" to include new member "text_end".
This new field will represent the offset for end of text
section for a dso. For elf, this value is derived as:
sh_size (Size of section in byes) + sh_offset (Section file
offst) of the elf header for text.
For bfd, this value is derived as:
1.
The testcase "Object code reading" fails in somecases
for "fs_something" sub test as below:
Reading object code for memory address: 0xc00807f0142c
File is: /lib/modules/6.5.0-rc3+/kernel/fs/xfs/xfs.ko
On file address is: 0x1114cc
Objdump command is: objdump -z -d --start-addres
On 9/14/23 22:24, Kees Cook wrote:
On Thu, Sep 14, 2023 at 11:21:06PM +, Justin Stitt wrote:
`strncpy` is deprecated for use on NUL-terminated destination strings [1].
We should prefer more robust and less ambiguous string interfaces.
A suitable replacement is `strscpy` [2] due to the fact
On 15/09/23 08:24, Athira Rajeev wrote:
> The testcase "Object code reading" fails in somecases
> for "fs_something" sub test as below:
>
> Reading object code for memory address: 0xc00807f0142c
> File is: /lib/modules/6.5.0-rc3+/kernel/fs/xfs/xfs.ko
> On file address is: 0x1114cc
. Imagine a name
input of "fan#2-data". "buf" wants to get "2". copy_len is 1, and
strscpy would eat it. :)
-Kees
>
> err = kstrtou32(buf, 10, index);
> if (err)
>
> ---
> base-commit: 3669558bdf354cd352be955ef2764cde6a9bf5ec
> change-id: 20230914-strncpy-drivers-hwmon-ibmpowernv-c-80a03f16d93a
>
> Best regards,
> --
> Justin Stitt
>
--
Kees Cook
The testcase "Object code reading" fails in somecases
for "fs_something" sub test as below:
Reading object code for memory address: 0xc00807f0142c
File is: /lib/modules/6.5.0-rc3+/kernel/fs/xfs/xfs.ko
On file address is: 0x1114cc
Objdump command is: objdump -z -d --start-addres
Update "struct dso" to include new member "text_end".
This new field will represent the offset for end of text
section for a dso. For elf, this value is derived as:
sh_size (Size of section in byes) + sh_offset (Section file
offst) of the elf header for text.
For bfd, this value is derived as:
1.
> On 14-Sep-2023, at 11:54 PM, Adrian Hunter wrote:
>
> On 7/09/23 19:45, Athira Rajeev wrote:
>> The testcase "Object code reading" fails in somecases
>> for "fs_something" sub test as below:
>>
>>Reading object code for memory address: 0xc00807f0142c
>>File is: /lib/modules/6.5.
> On 14-Sep-2023, at 11:49 PM, Adrian Hunter wrote:
>
> On 7/09/23 19:45, Athira Rajeev wrote:
>> Update "struct dso" to include new member "text_end".
>> This new field will represent the offset for end of text
>> section for a dso. For elf, this value is derived as:
>> sh_size (Size of secti
Le 15/09/2023 à 02:43, Michael Ellerman a écrit :
> Christophe Leroy writes:
>> It used to be impossible to select CONFIG_CPM2 without selecting
>> CONFIG_FSL_SOC at the same time because CONFIG_CPM2 was dependent
>> on CONFIG_8260 and CONFIG_8260 was selecting CONFIG_FSL_SOC.
>>
>> But after co
Syzkaller reported a sleep in atomic context bug relating to the HASHCHK
handler logic
BUG: sleeping function called from invalid context at
arch/powerpc/kernel/traps.c:1518
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 25040, name:
syz-executor
preempt_count: 0, expected: 0
RCU
When one of the methods xive_native_alloc_irq_on_chip, irq_create_mapping
or irq_get_handler_data fails, the function will directly return without
disposing vinst->name and vinst. Fix it.
Fixes: c20e1e299d93 ("powerpc/vas: Alloc and setup IRQ and trigger port
address")
Signed-off-by: Yuanjun Gong
Sachin Sant writes:
>> On 14-Sep-2023, at 6:52 PM, Michael Ellerman wrote:
>>
>> Sachin Sant writes:
On 11-Sep-2023, at 2:44 PM, Aditya Gupta wrote:
Presently, while reading a vmcore, makedumpfile uses
`cur_cpu_spec.mmu_features` to decide whether the crashed system had
>>
Tyrel Datwyler writes:
> On 9/14/23 02:46, Yuanjun Gong wrote:
>> When one of the methods xive_native_alloc_irq_on_chip, irq_create_mapping
>> or irq_get_handler_data fails, the function will directly return without
>> disposing vinst->name and vinst. Fix it.
>>
>> Fixes: c20e1e299d93 ("powerpc/v
Christophe Leroy writes:
> It used to be impossible to select CONFIG_CPM2 without selecting
> CONFIG_FSL_SOC at the same time because CONFIG_CPM2 was dependent
> on CONFIG_8260 and CONFIG_8260 was selecting CONFIG_FSL_SOC.
>
> But after commit eb5aa2137275 ("powerpc/82xx: Remove CONFIG_8260
> and
On Thu, Sep 14, 2023, Ackerley Tng wrote:
> Sean Christopherson writes:
>
> > On Mon, Aug 28, 2023, Ackerley Tng wrote:
> >> Sean Christopherson writes:
> >> >> If we track struct kvm with the inode, then I think (a), (b) and (c) can
> >> >> be independent of the refcounting method. What do you
10, index);
if (err)
---
base-commit: 3669558bdf354cd352be955ef2764cde6a9bf5ec
change-id: 20230914-strncpy-drivers-hwmon-ibmpowernv-c-80a03f16d93a
Best regards,
--
Justin Stitt
Sean Christopherson writes:
> On Mon, Aug 28, 2023, Ackerley Tng wrote:
>> Sean Christopherson writes:
>> >> If we track struct kvm with the inode, then I think (a), (b) and (c) can
>> >> be independent of the refcounting method. What do you think?
>> >
>> > No go. Because again, the inode (phy
On Thu, 2023-09-14 at 18:58 +, Sohil Mehta wrote:
> commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall")
> recently added support for map_shadow_stack() but it is limited to
> x86
> only for now. There is a possibility that other architectures
> (namely,
> arm64 and RISC-V), th
On Thu, 14 Sep 2023, John Ogness wrote:
> Patches 2-74 switch all uart port locking call sites to use the new
> wrappers. These patches were automatically generated using coccinelle.
Hmm, no need to do this for drivers/tty/serial/zs.c?
Maciej
commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall")
recently added support for map_shadow_stack() but it is limited to x86
only for now. There is a possibility that other architectures (namely,
arm64 and RISC-V), that are implementing equivalent support for shadow
stacks, might ne
When a serial port is used for kernel console output, then all
modifications to the UART registers which are done from other contexts,
e.g. getty, termios, are interference points for the kernel console.
So far this has been ignored and the printk output is based on the
principle of hope. The rewo
Hi Michael
On 9/14/2023 9:10 PM, Michael Ellerman wrote:
Yuan Tan writes:
Use 'make savedefconfig' to cleanup pmac32_defconfig, based on Linux
7.6-rc1
Thanks but I don't like doing these updates in a single commit like
this, it's easy to accidentally lose a symbol.
Yeah I have the same conce
"Edgecombe, Rick P" writes:
> On Mon, 2023-09-11 at 18:02 +, Sohil Mehta wrote:
>> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl
>> b/arch/powerpc/kernel/syscalls/syscall.tbl
>> index 20e50586e8a2..2767b8a42636 100644
>> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
>> +++ b/arch/powe
On 07/09/23 10:15 pm, Athira Rajeev wrote:
The testcase "Object code reading" fails in somecases
for "fs_something" sub test as below:
Reading object code for memory address: 0xc00807f0142c
File is: /lib/modules/6.5.0-rc3+/kernel/fs/xfs/xfs.ko
On file address is: 0x1114cc
On Thu, Sep 14, 2023 at 12:26:53PM +1000, Michael Ellerman wrote:
> Kent Overstreet writes:
> > bcachefs's six locks need kvm_guest, via
> > ower_on_cpu() -> vcpu_is_preempted() -> is_kvm_guest()
> >
> > Signed-off-by: Kent Overstreet
> > Cc: linuxppc-dev@lists.ozlabs.org
> > ---
> > arch/powe
On 9/14/23 08:23, Christophe Leroy wrote:
> It used to be impossible to select CONFIG_CPM2 without selecting
> CONFIG_FSL_SOC at the same time because CONFIG_CPM2 was dependent
> on CONFIG_8260 and CONFIG_8260 was selecting CONFIG_FSL_SOC.
>
> But after commit eb5aa2137275 ("powerpc/82xx: Remov
On Mon, Aug 28, 2023, Elliot Berman wrote:
> I had a 3rd question that's related to how to wire the gmem up to a virtual
> machine:
>
> I learned of a usecase to implement copy-on-write for gmem. The premise
> would be to have a "golden copy" of the memory that multiple virtual
> machines can map
From: Thomas Gleixner
When a serial port is used for kernel console output, then all
modifications to the UART registers which are done from other contexts,
e.g. getty, termios, are interference points for the kernel console.
So far this has been ignored and the printk output is based on the
pri
From: Thomas Gleixner
When a serial port is used for kernel console output, then all
modifications to the UART registers which are done from other contexts,
e.g. getty, termios, are interference points for the kernel console.
So far this has been ignored and the printk output is based on the
pri
On 7/09/23 19:45, Athira Rajeev wrote:
> The testcase "Object code reading" fails in somecases
> for "fs_something" sub test as below:
>
> Reading object code for memory address: 0xc00807f0142c
> File is: /lib/modules/6.5.0-rc3+/kernel/fs/xfs/xfs.ko
> On file address is: 0x1114cc
>
On 7/09/23 19:45, Athira Rajeev wrote:
> Update "struct dso" to include new member "text_end".
> This new field will represent the offset for end of text
> section for a dso. For elf, this value is derived as:
> sh_size (Size of section in byes) + sh_offset (Section file
> offst) of the elf header
On Mon, Aug 28, 2023, Ackerley Tng wrote:
> Sean Christopherson writes:
> >> If we track struct kvm with the inode, then I think (a), (b) and (c) can
> >> be independent of the refcounting method. What do you think?
> >
> > No go. Because again, the inode (physical memory) is coupled to the
> >
> On 14-Sep-2023, at 5:47 PM, Disha Goel wrote:
>
> On 07/09/23 10:15 pm, Athira Rajeev wrote:
>> The testcase "Object code reading" fails in somecases
>> for "fs_something" sub test as below:
>>
>> Reading object code for memory address: 0xc00807f0142c
>> File is: /lib/modules/6.5.0-rc3+
> On 13-Sep-2023, at 1:06 AM, Arnaldo Carvalho de Melo wrote:
>
> Em Tue, Sep 12, 2023 at 07:00:00AM -0700, Ian Rogers escreveu:
>> On Mon, Sep 11, 2023 at 11:38 PM Athira Rajeev
>> wrote:
>>>
>>> Makefile.perf uses "CONFIG_*" checks in the code. Example the config
>>> for libtraceevent is u
Add rule in new Makefile "tests/Makefile.tests" for running
shellcheck on shell test scripts. This automates below shellcheck
into the build.
$ for F in $(find tests/shell/ -perm -o=x -name '*.sh'); do shellcheck
-S warning $F; done
CONFIG_SHELLCHECK check is added to avoid build breakag
shellcheck tool can detect coding/formatting issues on
shell scripts. In perf directory "tests/shell", there are lot
of shell test scripts and this tool can detect coding/formatting
issues on these scripts.
Example to use shellcheck for severity level for
errors and warnings, below command is used
The nest IMC (In Memory Collection) Performance Monitoring
Unit(PMU) node names are saved as "struct nest_pmus_struct"
in the "hw/imc.c" IMC code. Not all the IMC PMUs listed in
the device tree may be available. Nest IMC PMU names along with
their bit values is represented in imc availability vecto
The nest IMC (In Memory Collection) Performance Monitoring
Unit(PMU) node names are saved in nest_pmus[] array in the
"hw/imc.c" IMC code. Not all the IMC PMUs listed in the device
tree may be available. Nest IMC PMU names along with their
bit values is represented in imc availability vector.
The n
Add a function dt_find_by_name_before_addr() that returns the child node if
it matches till first occurrence at "@" of a given name, otherwise NULL.
This is helpful for cases with node name like: "name@addr". In
scenarios where nodes are added with "name@addr" format and if the
value of "addr" is n
On 9/14/23 02:46, Yuanjun Gong wrote:
> When one of the methods xive_native_alloc_irq_on_chip, irq_create_mapping
> or irq_get_handler_data fails, the function will directly return without
> disposing vinst->name and vinst. Fix it.
>
> Fixes: c20e1e299d93 ("powerpc/vas: Alloc and setup IRQ and tri
It used to be impossible to select CONFIG_CPM2 without selecting
CONFIG_FSL_SOC at the same time because CONFIG_CPM2 was dependent
on CONFIG_8260 and CONFIG_8260 was selecting CONFIG_FSL_SOC.
But after commit eb5aa2137275 ("powerpc/82xx: Remove CONFIG_8260
and CONFIG_8272") CONFIG_CPM2 depends on
> On 14-Sep-2023, at 6:52 PM, Michael Ellerman wrote:
>
> Sachin Sant writes:
>>> On 11-Sep-2023, at 2:44 PM, Aditya Gupta wrote:
>>>
>>> Presently, while reading a vmcore, makedumpfile uses
>>> `cur_cpu_spec.mmu_features` to decide whether the crashed system had
>>> RADIX MMU or not.
>>>
On Wed, 13 Sep 2023 18:26:56 +0800, Chancel Liu wrote:
> i.MX rpmsg sound cards work on codec slave mode. MCLK will be disabled
> by CPU DAI driver in hw_free(). Some codec requires MCLK present at
> power up/down sequence. So need to set ignore_pmdown_time to power down
> codec immediately before
On Thu, Sep 14, 2023, Binbin Wu wrote:
>
> On 9/14/2023 9:55 AM, Sean Christopherson wrote:
> > +void kvm_mmu_invalidate_end(struct kvm *kvm)
> > {
> > /*
> > * This sequence increase will notify the kvm page fault that
> > @@ -833,6 +848,13 @@ void kvm_mmu_invalidate_end(struct kvm *kv
Benjamin Gray writes:
> To determine if a trap was caused by a HASHCHK instruction, we inspect
> the user instruction that triggered the trap. However this may sleep
> if the page needs to be faulted in.
It would be good to include the output from the might_sleep() check that
failed.
And I think
Sachin Sant writes:
>> On 11-Sep-2023, at 2:44 PM, Aditya Gupta wrote:
>>
>> Presently, while reading a vmcore, makedumpfile uses
>> `cur_cpu_spec.mmu_features` to decide whether the crashed system had
>> RADIX MMU or not.
>>
>> Currently, makedumpfile fails to get the `cur_cpu_spec` symbol (un
Aditya Gupta writes:
> Presently, while reading a vmcore, makedumpfile uses
> `cur_cpu_spec.mmu_features` to decide whether the crashed system had
> RADIX MMU or not.
>
> Currently, makedumpfile fails to get the `cur_cpu_spec` symbol (unless
> a vmlinux is passed with the `-x` flag to makedumpfile
Yuan Tan writes:
> Use 'make savedefconfig' to cleanup pmac32_defconfig, based on Linux
> 7.6-rc1
Thanks but I don't like doing these updates in a single commit like
this, it's easy to accidentally lose a symbol.
I prefer an explanation for what's changing for each symbol. See
1ce7fda142af ("pow
On Thu, 14 Sep 2023 04:54:17 +
Christophe Leroy wrote:
> Le 12/09/2023 à 19:39, Christophe Leroy a écrit :
> >
> >
> > Le 12/09/2023 à 17:59, Erhard Furtner a écrit :
> >>
> >> printk: bootconsole [udbg0] enabled
> >> Total memory = 2048MB; using 4096kB for hash table
> >> mapin_ram:125
>
Michal Suchánek writes:
> Hello,
>
> On Thu, Sep 14, 2023 at 02:13:32PM +1000, Michael Ellerman wrote:
>> Nathan Chancellor writes:
>> > Hi Greg,
>> >
>> > On Fri, Sep 08, 2023 at 10:30:56AM -0500, gjo...@linux.vnet.ibm.com wrote:
>> >> From: Greg Joyce
>> >>
>> >> Define operations for SED Opal
Hello,
On Thu, Sep 14, 2023 at 02:13:32PM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
> > Hi Greg,
> >
> > On Fri, Sep 08, 2023 at 10:30:56AM -0500, gjo...@linux.vnet.ibm.com wrote:
> >> From: Greg Joyce
> >>
> >> Define operations for SED Opal to read/write keys
> >> from POWER L
Hi Shenjiu,
Thanks for the update.
On Thu, Sep 14, 2023 at 01:54:02PM +0800, Shengjiu Wang wrote:
> Audio signal processing has the requirement for memory to
> memory similar as Video.
>
> This patch is to add this support in v4l2 framework, defined
> new buffer type V4L2_BUF_TYPE_AUDIO_CAPTURE
Simplify pmac32_defconfig with POWER_RESET dependences.
Regenerate pmac32_defconfig with 'make savedefconfig'.
Suggested-by: Philippe Mathieu-Daudé
Suggested-by: Christophe Leroy
Signed-off-by: Yuan Tan
---
arch/powerpc/configs/pmac32_defconfig | 2 +-
1 file changed, 1 insertion(+), 1 deleti
pmac32's power off depends on ADB_CUDA to work. Enable it when
POWER_RESET is set for convenience.
Suggested-by: Zhangjin Wu
Signed-off-by: Yuan Tan
---
arch/powerpc/platforms/powermac/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/powermac/Kconfig
b/arch/po
Use 'make savedefconfig' to cleanup pmac32_defconfig, based on Linux
7.6-rc1
Suggested-by: Philippe Mathieu-Daudé
Suggested-by: Christophe Leroy
Signed-off-by: Yuan Tan
---
arch/powerpc/configs/pmac32_defconfig | 44 ---
1 file changed, 19 insertions(+), 25 deletions(-)
These patches are to add dependencies of POWER_RESET for pmac32.
As I have to use "savedefconfig" on the latest branch of different
architectures, I am sending separate patches for each architecture in v3.
To simplify the enablement of the poweroff support, selecting the
required options for CONF
When one of the methods xive_native_alloc_irq_on_chip, irq_create_mapping
or irq_get_handler_data fails, the function will directly return without
disposing vinst->name and vinst. Fix it.
Fixes: c20e1e299d93 ("powerpc/vas: Alloc and setup IRQ and trigger port
address")
Signed-off-by: Yuanjun Gong
On 14/09/23 11:48 am, Christophe Leroy wrote:
Hi,
Hi Christophe,
Le 29/09/2021 à 13:18, Hari Bathini a écrit :
With KUAP enabled, any kernel code which wants to access userspace
needs to be surrounded by disable-enable KUAP. But that is not
happening for BPF_PROBE_MEM load instruction. T
On 9/4/2023 6:51 PM, Philippe Mathieu-Daudé wrote:
On 4/9/23 11:24, Yuan Tan wrote:
Hi,
On 9/4/2023 3:40 PM, Philippe Mathieu-Daudé wrote:
Hi,
On 1/9/23 04:42, Yuan Tan wrote:
MIPS Malta's power off depends on PCI, PCI_QUIRKS, and
POWER_RESET_PIIX4_POWEROFF to work. Enable them when POWER_
67 matches
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