Le 12/07/2022 à 03:21, Nicholas Piggin a écrit :
> Excerpts from Laurent Dufour's message of June 27, 2022 11:53 pm:
>> When a partition is transferred, once it arrives at the destination node,
>> the partition is active but much of its memory must be transferred from the
>> start node.
>>
>> It
Le 12/07/2022 à 03:46, Nicholas Piggin a écrit :
> Excerpts from Laurent Dufour's message of June 27, 2022 11:53 pm:
>> During a LPM, while the memory transfer is in progress on the arrival side,
>> some latencies is generated when accessing not yet transferred pages on the
>> arrival side. Thus,
Le 12/07/2022 à 03:33, Nicholas Piggin a écrit :
> Excerpts from Laurent Dufour's message of June 27, 2022 11:53 pm:
>> In pseries_migration_partition(), loop until the memory transfer is
>> complete. This way the calling drmgr process will not exit earlier,
>> allowing callbacks to be run only
Le 12/07/2022 à 03:42, Nicholas Piggin a écrit :
> Excerpts from Laurent Dufour's message of June 27, 2022 11:53 pm:
>> Introduce a factor which would apply to the NMI watchdog timeout.
>>
>> This factor is a percentage added to the watchdog_tresh value. The value is
>> set under the
Hi Christophe,
Thanks for your patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on mkp-scsi/for-next jejb-scsi/for-next linus/master
v5.19-rc5 next-20220707]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when
Le 11/07/2022 à 23:48, Segher Boessenkool a écrit :
> Hi!
>
> On Mon, Jul 11, 2022 at 05:32:09PM +, Christophe Leroy wrote:
>> Le 11/07/2022 à 18:14, Segher Boessenkool a écrit :
CC arch/powerpc/kernel/irq.o
{standard input}: Assembler messages:
{standard
On Tue, Jul 12, 2022 at 09:22:12AM +, Christophe Leroy wrote:
> Le 11/07/2022 à 23:48, Segher Boessenkool a écrit :
> > I believe the eieio instruction is disabled on some e500 models, because
> > it does not work correctly, so EIEIO_EN=1 cannot work, something like
> > that?
>
> Don't know.
On 7/11/22 18:04, Mimi Zohar wrote:
Hi Stefan,
On Thu, 2022-07-07 at 13:20 -0400, Stefan Berger wrote:
- /*
-* For both vtpm/tpm, firmware has log addr and log size in big
-* endian format. But in case of vtpm, there is a method called
-* sml-handover which is
When a partition is transferred, once it arrives at the destination node,
the partition is active but much of its memory must be transferred from the
start node.
It depends on the activity in the partition, but the more CPU the partition
has, the more memory to be transferred is likely to be.
Introduce a factor which would apply to the NMI watchdog timeout.
This factor is a percentage added to the watchdog_tresh value. The value is
set under the watchdog_mutex protection and lockup_detector_reconfigure()
is called to recompute wd_panic_timeout_tb.
Once the factor is set, it remains
In pseries_migration_partition(), loop until the memory transfer is
complete. This way the calling drmgr process will not exit earlier,
allowing callbacks to be run only once the migration is fully completed.
If reading the VASI state is done after the hypervisor has completed the
migration, the
In some circumstances it may be interesting to reconfigure the watchdog
from inside the kernel.
On PowerPC, this may helpful before and after a LPAR migration (LPM) is
initiated, because it implies some latencies, watchdog, and especially NMI
watchdog is expected to be triggered during this
During a LPM, while the memory transfer is in progress on the arrival side,
some latencies is generated when accessing not yet transferred pages on the
arrival side. Thus, the NMI watchdog may be triggered too frequently, which
increases the risk to hit a NMI interrupt in a bad place in the
With the nd_namespace_blk and nd_blk_region infrastructures being removed,
the ndtest still has some references to the old code. So the
compilation fails as below,
../tools/testing/nvdimm/test/ndtest.c:204:25: error: ‘ND_DEVICE_NAMESPACE_BLK’
undeclared here (not in a function); did you mean
Hi--
On 7/12/22 07:32, Laurent Dufour wrote:
> During a LPM, while the memory transfer is in progress on the arrival side,
> some latencies is generated when accessing not yet transferred pages on the
are
> arrival side. Thus, the NMI watchdog may be triggered too frequently,
Hi!
On Mon, Jul 11, 2022 at 01:11:27PM +1000, Nicholas Piggin wrote:
> The wait instruction has a different encoding between BookE and BookS.
> Add the BookS variant.
> #define PPC_RAW_WAIT(w) (0x7c7c | __PPC_WC(w))
> +#define PPC_RAW_WAIT_BOOKS(w, p) (0x7c3c |
On Mon, 2022-07-11 at 21:14 +0200, Christophe JAILLET wrote:
> Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
>
> It is less verbose and it improves the semantic.
>
> Signed-off-by: Christophe JAILLET
Thanks!
Acked-by: Andrew Donnellan
> ---
> drivers/misc/cxl/context.c |
On Mon, 2022-07-11 at 21:14 +0200, Christophe JAILLET wrote:
> A bitmap_zalloc() must be balanced by a corresponding bitmap_free()
> in the
> error handling path of afu_allocate_irqs().
>
> Signed-off-by: Christophe JAILLET
Thanks for catching this.
Acked-by: Andrew Donnellan
> ---
> The
PowerVM provides an isolated Platform Keystore(PKS) storage allocation
for each LPAR with individually managed access controls to store
sensitive information securely. It provides a new set of hypervisor
calls for Linux kernel to access PKS storage.
Define PLPKS driver using H_CALL interface to
Shivaprasad G Bhat wrote:
> With the nd_namespace_blk and nd_blk_region infrastructures being removed,
> the ndtest still has some references to the old code. So the
> compilation fails as below,
>
> ../tools/testing/nvdimm/test/ndtest.c:204:25: error:
> ‘ND_DEVICE_NAMESPACE_BLK’ undeclared here
From: Greg Joyce
Add platform specific interfaces arch_read_variable() and
arch_variable() to allow platform agnostic access to platform
variable stores.
Signed-off-by: Greg Joyce
---
arch/powerpc/platforms/pseries/plpks/Makefile | 1 +
.../platforms/pseries/plpks/plpks_arch_ops.c | 163
PowerVM provides an isolated Platform KeyStore(PKS)[1] storage allocation
for each partition(LPAR) with individually managed access controls to store
sensitive information securely. The Linux Kernel can access this storage by
interfacing with the hypervisor using a new set of hypervisor calls.
On Wed, 2022-07-13 at 09:54 +0800, sohu0106 wrote:
>
>
> In do_adb_query function of drivers/macintosh/adb.c, req->data is
> copy form userland. the parameter "req->data[2]" is Missing check,
> the array size of adb_handler[] is 16, so "adb_handler[req-
> >data[2]].original_address" and
In do_adb_query function of drivers/macintosh/adb.c, req->data is copy form
userland. the parameter "req->data[2]" is Missing check, the array size of
adb_handler[] is 16, so "adb_handler[req->data[2]].original_address" and
"adb_handler[req->data[2]].handler_id" will lead to oob read.
Excerpts from Kajol Jain's message of July 11, 2022 1:49 pm:
> File book3s_hv_p9_entry.c in powerpc/kvm folder consists of functions
> like freeze_pmu, switch_pmu_to_guest and switch_pmu_to_host which are
> specific to Performance Monitoring Unit(PMU) for power9 and later
> platforms.
>
> For
Excerpts from Kajol Jain's message of July 11, 2022 1:49 pm:
> Commit aabcaf6ae2a0 ("KVM: PPC: Book3S HV P9: Move host OS save/restore
> functions to built-in") added a comment in switch_pmu_to_guest
> function, indicating possibility of moving PMU handling code
> to perf subsystem. But perf
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