On power9, Virtual Accelerator Switchboard (VAS) allows user space or
kernel to communicate with Nest Accelerator (NX) directly using COPY/PASTE
instructions. NX provides verious functionalities such as compression,
encryption and etc. But only compression (842 and GZIP formats) is
supported in
On 22.01.2020 05:04, Florian Fainelli wrote:
>
>
> On 1/21/2020 1:09 PM, Heiner Kallweit wrote:
>> Convert suitable drivers to use new helper phy_do_ioctl_running.
>>
>> Signed-off-by: Heiner Kallweit
> The vast majority of drivers that you are converting use the following
> convention:
>
> -
Le 21/01/2020 à 20:55, Segher Boessenkool a écrit :
On Tue, Jan 21, 2020 at 05:22:32PM +, Christophe Leroy wrote:
g1() should return 3, not 5.
What makes you say that?
"A return of 0 does not indicate that the
value is _not_ a constant, but merely that GCC cannot prove it is a
On 1/22/20 10:25 AM, Bharata B Rao wrote:
> When migrate_vma_setup() fails in kvmppc_svm_page_out(),
> release kvm->arch.uvmem_lock before returning.
>
> Fixes: ca9f4942670 ("KVM: PPC: Book3S HV: Support for running secure guests")
> Signed-off-by: Bharata B Rao
Reviewed-by: Kamalesh Babulal
Le 21/01/2020 à 20:55, Segher Boessenkool a écrit :
On Tue, Jan 21, 2020 at 05:22:32PM +, Christophe Leroy wrote:
g1() should return 3, not 5.
What makes you say that?
What makes me say that is that NULL is obviously a constant pointer and
I think we are all expecting gcc to see it
Use FW_FEATURE_SVM to detect a secure guest (SVM). This would be
more efficient than calling mfmsr() frequently.
Suggested-by: Michael Ellerman
Signed-off-by: Sukadev Bhattiprolu
---
arch/powerpc/include/asm/firmware.h | 3 ++-
arch/powerpc/include/asm/svm.h| 6 +-
Ultravisor disables some CPU features like BHRB, EBB and PMU in secure
virtual machines (SVMs) for now. Skip accessing those registers in
SVMs to avoid getting a Program Interrupt.
Basic performance monitoring in SVMs is likely to be enabled in the future
after adding the necessary security
When migrate_vma_setup() fails in kvmppc_svm_page_out(),
release kvm->arch.uvmem_lock before returning.
Fixes: ca9f4942670 ("KVM: PPC: Book3S HV: Support for running secure guests")
Signed-off-by: Bharata B Rao
---
Applies on paulus/kvm-ppc-next branch
arch/powerpc/kvm/book3s_hv_uvmem.c | 2 +-
Christophe Leroy writes:
> Le 09/01/2020 à 08:08, Daniel Axtens a écrit :
>> Building on the work of Christophe, Aneesh and Balbir, I've ported
>> KASAN to 64-bit Book3S kernels running on the Radix MMU.
>>
>> This provides full inline instrumentation on radix, but does require
>> that you be
On 1/21/2020 1:09 PM, Heiner Kallweit wrote:
> Convert suitable drivers to use new helper phy_do_ioctl_running.
>
> Signed-off-by: Heiner Kallweit
The vast majority of drivers that you are converting use the following
convention:
- !netif_running -> return -EINVAL
- !dev->phydev -> return
Some newer cards supported by aacraid can take up to 40s to recover
after an EEH event. This causes spurious failures in the basic EEH
self-test since the current maximim timeout is only 30s.
Fix the immediate issue by bumping the timeout to a default of 60s,
and allow the wait time to be
On 1/21/20 3:09 PM, Heiner Kallweit wrote:
drivers/net/ethernet/qualcomm/emac/emac.c | 14 +-
Acked-by: Timur Tabi
Convert suitable drivers to use new helper phy_do_ioctl_running.
Signed-off-by: Heiner Kallweit
---
v2: I forgot the netdev mailing list
---
drivers/net/ethernet/allwinner/sun4i-emac.c| 15 +--
drivers/net/ethernet/amd/au1000_eth.c | 13 +
Convert suitable drivers to use new helper phy_do_ioctl_running.
Signed-off-by: Heiner Kallweit
---
drivers/net/ethernet/allwinner/sun4i-emac.c| 15 +--
drivers/net/ethernet/amd/au1000_eth.c | 13 +
drivers/net/ethernet/arc/emac_main.c | 14
On Tue, Jan 21, 2020 at 05:22:32PM +, Christophe Leroy wrote:
> g1() should return 3, not 5.
What makes you say that?
"A return of 0 does not indicate that the
value is _not_ a constant, but merely that GCC cannot prove it is a
constant with the specified value of the '-O' option."
(And
> Here, '?' will be replaced with a runtime value and metric expression will
> be replicated.
Okay seems reasonable to me.
Thanks,
-Andi
On 21.01.2020 20:55, Alexei Starovoitov wrote:
> On Tue, Jan 21, 2020 at 9:31 AM Alexey Budankov
> wrote:
>>
>>
>> On 21.01.2020 17:43, Stephen Smalley wrote:
>>> On 1/20/20 6:23 AM, Alexey Budankov wrote:
Introduce CAP_PERFMON capability designed to secure system performance
On Tue, Jan 21, 2020 at 9:31 AM Alexey Budankov
wrote:
>
>
> On 21.01.2020 17:43, Stephen Smalley wrote:
> > On 1/20/20 6:23 AM, Alexey Budankov wrote:
> >>
> >> Introduce CAP_PERFMON capability designed to secure system performance
> >> monitoring and observability operations so that CAP_PERFMON
On 21.01.2020 17:43, Stephen Smalley wrote:
> On 1/20/20 6:23 AM, Alexey Budankov wrote:
>>
>> Introduce CAP_PERFMON capability designed to secure system performance
>> monitoring and observability operations so that CAP_PERFMON would assist
>> CAP_SYS_ADMIN capability in its governing role for
On 04/18/2019 06:55 AM, Michael Ellerman wrote:
Christophe Leroy writes:
diff --git a/arch/powerpc/include/asm/book3s/32/kup.h
b/arch/powerpc/include/asm/book3s/32/kup.h
index 5f97c742ca71..b3560b2de435 100644
--- a/arch/powerpc/include/asm/book3s/32/kup.h
+++
On 1/20/20 6:23 AM, Alexey Budankov wrote:
Introduce CAP_PERFMON capability designed to secure system performance
monitoring and observability operations so that CAP_PERFMON would assist
CAP_SYS_ADMIN capability in its governing role for perf_events, i915_perf
and other performance monitoring
/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-a001-20200121 (attached as .config)
compiler: powerpc64le-linux-gcc (GCC) 7.5.0
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
https://bugzilla.kernel.org/show_bug.cgi?id=205099
--- Comment #24 from Erhard F. (erhar...@mailbox.org) ---
Created attachment 286931
--> https://bugzilla.kernel.org/attachment.cgi?id=286931=edit
screenshot (5.5-rc6+, KASAN_VMALLOC + VMAP_STACK + INLINE KASAN, PowerMac G4
DP)
--
You are
https://bugzilla.kernel.org/show_bug.cgi?id=205099
--- Comment #23 from Erhard F. (erhar...@mailbox.org) ---
Created attachment 286929
--> https://bugzilla.kernel.org/attachment.cgi?id=286929=edit
dmesg (kernel 5.5-rc6+, KASAN_VMALLOC + CONFIG_THREAD_SHIFT=14 + OUTLINE KASAN,
PowerMac G4 DP)
https://bugzilla.kernel.org/show_bug.cgi?id=205099
--- Comment #22 from Erhard F. (erhar...@mailbox.org) ---
(In reply to Christophe Leroy from comment #19)
> Can you tell exactly where it stops during the boot ? Or take a photo of the
> screen ?
I'll attach a photo shortly.
> In parallele,
https://bugzilla.kernel.org/show_bug.cgi?id=205099
--- Comment #21 from Erhard F. (erhar...@mailbox.org) ---
Created attachment 286927
--> https://bugzilla.kernel.org/attachment.cgi?id=286927=edit
dmesg (kernel 5.5-rc6+, KASAN_VMALLOC + CONFIG_THREAD_SHIFT=14 + INLINE KASAN,
PowerMac G4 DP)
--
https://bugzilla.kernel.org/show_bug.cgi?id=205099
Erhard F. (erhar...@mailbox.org) changed:
What|Removed |Added
Attachment #286871|0 |1
is obsolete|
On Mon 20-01-20 10:14:44, David Hildenbrand wrote:
> On 20.01.20 08:48, Michal Hocko wrote:
> > On Fri 17-01-20 08:57:51, Dan Williams wrote:
> > [...]
> >> Unless the user is willing to hold the device_hotplug_lock over the
> >> evaluation then the result is unreliable.
> >
> > Do we want to
On Tue, 2020-01-21 at 01:47 -0600, Segher Boessenkool wrote:
> On Mon, Jan 20, 2020 at 05:52:15PM -0800, Joe Perches wrote:
> > On Tue, 2020-01-21 at 09:31 +0800, Chen Zhou wrote:
> > > Fixes coccicheck warning:
> > > ./arch/powerpc/platforms/maple/setup.c:232:15-16:
> > > WARNING comparing
Aneesh Kumar K.V's on January 8, 2020 3:44 pm:
> Without this kernel can endup with SLB entries as below
>
> 04 c00c0800 00066bde000a7510 256M ESID=c00c0 VSID= 66bde000a7
> LLP:110
> 12 0800 00066bde000a7d90 256M ESID=0 VSID= 66bde000a7
> LLP:110
>
> Such
From: Madhavan Srinivasan
Patch adds an interface attribute folder to imc pmu.
This is intended to include pmu intreface capabilities
which will be useful to userspace likes selftest
testcases. Patch adds a "glob_lck" file to notify to
userspace of global lock mechanism added to imc devices
like
On 1/17/20 9:58 PM, Andi Kleen wrote:
On Fri, Jan 17, 2020 at 06:16:19PM +0530, Kajol Jain wrote:
Patch enhances current metric infrastructure to handle "?" in the metric
expression. The "?" can be use for parameters whose value not known while
creating metric events and which can be replace
IMC(In-memory Collection Counters) does performance monitoring in
two different modes, i.e accumulation mode(core-imc and thread-imc events),
and trace mode(trace-imc events). A cpu thread can either be in
accumulation-mode or trace-mode at a time and this is done via the LDBAR
register in POWER
From: Madhavan Srinivasan
Signed-off-by: Madhavan Srinivasan
---
.../pmu/mem_counters/imc_global_lock_test.c | 49 ++-
1 file changed, 48 insertions(+), 1 deletion(-)
diff --git
a/tools/testing/selftests/powerpc/pmu/mem_counters/imc_global_lock_test.c
From: Madhavan Srinivasan
Patch to add support to include interface tests for
memory counter PMUs as part of selftest.
These PMUs are primarily used to understand socket/chip/core
resourage usage. In PowerNV envirnoment, the perf interface
registered to access these counters are called "In
commit <249fad734a25> ""powerpc/perf: Disable trace_imc pmu"
disables IMC(In-Memory Collection) trace-mode in kernel, since frequent
mode switching between accumulation mode and trace mode via the spr LDBAR
in the hardware can trigger a checkstop(system crash).
Patch to re-enable imc-trace mode
commit <249fad734a25> ""powerpc/perf: Disable trace_imc pmu"
disables IMC(In-Memory Collection) trace-mode in kernel, since frequent
mode switching between accumulation mode and trace mode via the spr LDBAR
in the hardware can trigger a checkstop(system crash).
This patch
Le 21/01/2020 à 07:59, 王文虎 a écrit :
发件人：Andrew Donnellan
发送日期：2020-01-21 14:13:07
收件人：wangwenhu ,Benjamin Herrenschmidt ,Paul Mackerras
,Michael Ellerman ,Kate Stewart ,Greg
Kroah-Hartman ,Richard Fontana ,Thomas Gleixner
,linuxppc-dev@lists.ozlabs.org,linux-ker...@vger.kernel.org
On Tue, 21 Jan 2020 17:46:12 +1100
Andrew Donnellan wrote:
> On 3/12/19 2:46 pm, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > This patch adds platform support to map & release LPC memory.
>
> Might want to explain what LPC is.
>
> Otherwise:
>
> Reviewed-by: Andrew Donnellan
Le 21/01/2020 à 07:59, 王文虎 a écrit :
发件人：Andrew Donnellan
发送日期：2020-01-21 14:13:07
收件人：wangwenhu ,Benjamin Herrenschmidt ,Paul Mackerras
,Michael Ellerman ,Kate Stewart ,Greg
Kroah-Hartman ,Richard Fontana ,Thomas Gleixner
,linuxppc-dev@lists.ozlabs.org,linux-ker...@vger.kernel.org
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