From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: Ma Ke
[ Upstream commit ce9daa2efc0872a9a68ea51dc8000df05893ef2e ]
We should verify the bound of the array to assure that host
may not manipulate the index to point past endpoint array.
Signed-off-by: Ma Ke
Acked-by: Li Yang
Link:
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: Mahesh Salgaonkar
[ Upstream commit 77583f77ed9b1452ac62caebf09b2206da10bbf9 ]
When certain PHB HW failure causes pHyp to recover PHB, it marks the PE
state as temporarily unavailable until recovery is complete. This also
triggers an EEH handler in Linux which needs to notify drivers, and
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
From: ruanjinjie
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
On Fri, 08 Sep 2023 09:42:23 +0200, Vlastimil Babka wrote:
> As Kirill pointed out, mapping can be removed under us due to
> truncation. Test it under folio lock as already done for the async
> compaction / dirty folio case. To prevent locking every folio with
> mapping to do the test, do it only
On Fri, Sep 8, 2023 at 2:52 PM Ricardo Ribalda wrote:
>
> 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,
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 Ricardo and folks,
> > >
> > > On Fri, May 19,
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 Ricardo and folks,
> >
> > On Fri, May 19, 2023 at 7:48 AM Ricardo Ribalda
> > wrote:
> > >
> > > When upreving llvm I
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 seems to be that due to PGO there are multiple
On 9/8/23 9:30 AM, gjo...@linux.vnet.ibm.com wrote:
> From: Greg Joyce
>
> This patchset extends the capabilites incorporated into for-6.6/block
> (https://git.kernel.dk/cgit/linux/commit/?h=for-6.6/block=3bfeb61256643281ac4be5b8a57e9d9da3db4335)
> by allowing the SED Opal key to be seeded into
syzbot has bisected this issue to:
commit 49b0638502da097c15d46cd4e871dbaa022caf7c
Author: Suren Baghdasaryan
Date: Fri Aug 4 15:27:19 2023 +
mm: enable page walking API to lock vmas during the walk
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11fd234868
start
>> > There are about 3 known use cases that absolutely need access by other
>> > means than sys_rtas to work with lockdown, and about other 3 that would
>> > work either way.
>>
>> How do you figure that? I count 11 librtas APIs that use work areas (and
>> therefore /dev/mem) that are
On Fri, Sep 8, 2023 at 7:51 AM Athira Rajeev
wrote:
>
> Makefile.perf uses "CONFIG_*" checks in the code. Example the config
> for libtraceevent is used to set PYTHON_EXT_SRCS
>
> ifeq ($(CONFIG_LIBTRACEEVENT),y)
> PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
Hi Pingfan,
kernel test robot noticed the following build errors:
[auto build test ERROR on powerpc/fixes]
[also build test ERROR on linus/master v6.5 next-20230908]
[cannot apply to powerpc/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch
From: Greg Joyce
This patchset extends the capabilites incorporated into for-6.6/block
(https://git.kernel.dk/cgit/linux/commit/?h=for-6.6/block=3bfeb61256643281ac4be5b8a57e9d9da3db4335)
by allowing the SED Opal key to be seeded into
the keyring from a secure permanent keystore.
It has gone
From: Greg Joyce
Define operations for SED Opal to read/write keys
from POWER LPAR Platform KeyStore(PLPKS). This allows
non-volatile storage of SED Opal keys.
Signed-off-by: Greg Joyce
Reviewed-by: Jonathan Derrick
Reviewed-by: Hannes Reinecke
---
arch/powerpc/platforms/pseries/Kconfig
From: Greg Joyce
Allow for permanent SED authentication keys by
reading/writing to the SED Opal non-volatile keystore.
Signed-off-by: Greg Joyce
Reviewed-by: Jonathan Derrick
---
block/sed-opal.c | 18 --
1 file changed, 16 insertions(+), 2 deletions(-)
diff --git
From: Greg Joyce
Add read and write functions that allow SED Opal keys to stored
in a permanent keystore.
Signed-off-by: Greg Joyce
Reviewed-by: Jonathan Derrick
---
block/Makefile | 2 +-
block/sed-opal-key.c | 24
include/linux/sed-opal-key.h
Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.
Acked-by: Viresh Kumar
Signed-off-by: Rob Herring
---
v2:
- Add missing include
---
drivers/cpufreq/pmac32-cpufreq.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git
Makefile.perf uses "CONFIG_*" checks in the code. Example the config
for libtraceevent is used to set PYTHON_EXT_SRCS
ifeq ($(CONFIG_LIBTRACEEVENT),y)
PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
else
PYTHON_EXT_SRCS := $(shell grep -v
paca_ptrs should be large enough to hold the boot_cpuid, hence, its
lower boundary is set to the bigger one between boot_cpuid+1 and
nr_cpus.
On the other hand, some kernel component: -1. the timer assumes cpu0
online since the timer_list->flags subfield 'TIMER_CPUMASK' is zero if
not initialized
If the boot_cpuid is smaller than nr_cpus, it requires extra effort to
ensure the boot_cpu is in cpu_present_mask. This can be achieved by
reserving the last quota for the boot cpu.
Note: the restriction on nr_cpus will be lifted with more effort in the
next patch
Signed-off-by: Pingfan Liu
Cc:
It is a long time since my last v4 [1].
The code has undergone great changes. The paca[] array has been
reorganized and indexed by paca_ptrs[], which dramatically decreases the
memory consumption even if there are many unpresent cpus in the middle.
However, reordering the logical cpu numbers can
*** Idea ***
For kexec -p, the boot cpu can be not the cpu0, this causes the problem
of allocating memory for paca_ptrs[]. However, in theory, there is no
requirement to assign cpu's logical id as its present sequence in the
device tree. But there is something like cpu_first_thread_sibling(),
> On 08-Sep-2023, at 11:04 AM, Sachin Sant wrote:
>
>
>
>> On 07-Sep-2023, at 10:29 PM, Athira Rajeev
>> wrote:
>>
>> Testcase "Parsing of all PMU events from sysfs" parse events for
>> all PMUs, and not just cpu. In case of powerpc, the PowerVM
>> environment supports events from
> On 08-Sep-2023, at 4:41 AM, Ian Rogers wrote:
>
> On Thu, Sep 7, 2023 at 10:19 AM Athira Rajeev
> wrote:
>>
>> Makefile.perf uses "CONFIG_*" checks in the code. Example the config
>> for libtraceevent is used to set PYTHON_EXT_SRCS
>>
>>ifeq ($(CONFIG_LIBTRACEEVENT),y)
>>
> On 08-Sep-2023, at 5:20 AM, Ian Rogers wrote:
>
> On Thu, Sep 7, 2023 at 10:17 AM Athira Rajeev
> wrote:
>>
>> From: root
>>
>> shellcheck was run on perf tool shell scripts s a pre-requisite
>> to include a build option for shellcheck discussed here:
>>
Hi Mahesh,
Thanks for sharing your great idea. I was in the middle of V5 and
finish it today.
My v5 is based on the same idea of my v4 [1] with the improvement of
the code. And I will send it out.
[1]:
Use the newly introduced patch_instructions() that handles patching
multiple instructions with one call. This improves speed of exectution
for JIT'ing bpf programs.
Without this patch (on a POWER9 lpar):
# time modprobe test_bpf
real2m59.681s
user0m0.000s
sys 1m44.160s
#
patch_instruction() entails setting up pte, patching the instruction,
clearing the pte and flushing the tlb. If multiple instructions need
to be patched, every instruction would have to go through the above
drill unnecessarily. Instead, introduce function patch_instructions()
that sets up the pte,
Use bpf_jit_binary_pack_alloc in powerpc jit. The jit engine first
writes the program to the rw buffer. When the jit is done, the program
is copied to the final location with bpf_jit_binary_pack_finalize.
With multiple jit_subprogs, bpf_jit_free is called on some subprograms
that haven't got
Implement bpf_arch_text_invalidate and use it to fill unused part of
the bpf_prog_pack with trap instructions when a BPF program is freed.
Signed-off-by: Hari Bathini
---
arch/powerpc/net/bpf_jit_comp.c | 15 +++
1 file changed, 15 insertions(+)
diff --git
bpf_arch_text_copy is used to dump JITed binary to RX page, allowing
multiple BPF programs to share the same page. Use patch_instruction()
to implement it.
Signed-off-by: Hari Bathini
---
arch/powerpc/net/bpf_jit_comp.c | 41 -
1 file changed, 40 insertions(+), 1
Most BPF programs are small, but they consume a page each. For systems
with busy traffic and many BPF programs, this may also add significant
pressure on instruction TLB. High iTLB pressure usually slows down the
whole system causing visible performance degradation for production
workloads.
On 9/6/23 19:56, Arnaldo Carvalho de Melo wrote:
> Em Tue, Sep 05, 2023 at 05:10:37PM +0530, Kajol Jain escreveu:
>> Update JSON/Events list with data-source events for power10 platform.
>
> Thanks, applied the series.
>
> - Arnaldo
Hi Arnaldo,
Thanks for pulling the patchset.
Thanks,
Kajol
On 9/6/23 19:55, Arnaldo Carvalho de Melo wrote:
> Em Tue, Sep 05, 2023 at 05:10:38PM +0530, Kajol Jain escreveu:
>> Update JSON/Events list with additional data-source events
>> for power10 platform.
>
> I changed the cset title to:
>
> "perf vendor events power10: Add extra data-source
On 9/6/23 19:52, Arnaldo Carvalho de Melo wrote:
> Em Tue, Sep 05, 2023 at 05:10:37PM +0530, Kajol Jain escreveu:
>> Update JSON/Events list with data-source events for power10 platform.
>
> Next time could you please provide some pointer to the document from
> where these metrics came if it
On 2023/9/7 22:22, Sachin Sant wrote:
> While running LTP tests (specifically min_free_kbytes) on a Power server
> booted with 6.5.0-next-20230906 following crash was encountered.
>
> [ 3952.404936] __vm_enough_memory: pid: 440285, comm: min_free_kbytes, not
> enough memory for the allocation
Acked-by: Guo Ren
On Wed, Sep 6, 2023 at 6:04 PM Joel Granados via B4 Relay
wrote:
>
> From: Joel Granados
>
> This commit comes at the tail end of a greater effort to remove the
> empty elements at the end of the ctl_table arrays (sentinels) which
> will reduce the overall build time size of
As Kirill pointed out, mapping can be removed under us due to
truncation. Test it under folio lock as already done for the async
compaction / dirty folio case. To prevent locking every folio with
mapping to do the test, do it only for unevictable folios, as we can
expect the unmovable mapping
Sachin Sant writes:
> While running LTP tests (specifically min_free_kbytes) on a Power server
> booted with 6.5.0-next-20230906 following crash was encountered.
>
> [ 3952.404936] __vm_enough_memory: pid: 440285, comm: min_free_kbytes, not
> enough memory for the allocation
> [ 3956.895519]
The local variable vdev in hvcs_destruct_port() is set
but not used. Remove the variable and related code.
Signed-off-by: Bo Liu
---
drivers/tty/hvc/hvcs.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index d29fdfe9d93d..b537d1fb67d4
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