Relations among IOASID users largely follow a publisher-subscriber
pattern. E.g. to support guest SVA on Intel Scalable I/O Virtualization
(SIOV) enabled platforms, VFIO, IOMMU, device drivers, KVM are all users
of IOASIDs. When a state change occurs, VFIO publishes the change event
that needs to
IOASID core maintains the guest-host mapping in the form of SPID and
IOASID. This patch assigns the guest PASID (if valid) as SPID while
binding guest page table with a host PASID. This mapping will be used
for lookup and notifications.
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/svm.c | 2
Now that IOASID core keeps track of the IOASID to mm_struct ownership in
the forms of ioasid_set with IOASID_SET_TYPE_MM token type, there is no
need to keep the same mapping in VT-d driver specific data. Native SVM
usage is not affected by the change.
Signed-off-by: Jacob Pan
---
There can be multiple users of an IOASID, each user could have hardware
contexts associated with the IOASID. In order to align lifecycles,
reference counting is introduced in this patch. It is expected that when
an IOASID is being freed, each user will drop a reference only after its
context is
ioasid_set was introduced as an arbitrary token that is shared by a
group of IOASIDs. For example, two IOASIDs allocated via the same
ioasid_set pointer belong to the same set.
For guest SVA usages, system-wide IOASID resources need to be
partitioned such that each VM can have its own quota and
On Intel Scalable I/O Virtualization (SIOV) enabled platforms, IOMMU
driver is one of the users of IOASIDs. In normal flow, callers will
perform IOASID allocation, bind, unbind, and free in order. However, for
guest SVA, IOASID free could come before unbind as guest is untrusted.
This patch
Rename ioasid_set_data() to ioasid_attach_data() to avoid confusion with
struct ioasid_set. ioasid_set is a group of IOASIDs that share a common
token.
Reviewed-by: Jean-Philippe Brucker
Signed-off-by: Jacob Pan
---
drivers/iommu/intel/svm.c | 6 +++---
drivers/iommu/ioasid.c| 6 +++---
IOASID is a system-wide resource that could vary on different systems.
The default capacity is 20 bits as defined in the PCI-E specifications.
This patch adds a function to allow adjusting system IOASID capacity.
For VT-d this is set during boot as part of the Intel IOMMU
initialization.
IOASID was introduced in v5.5 as a generic kernel allocator service for
both PCIe Process Address Space ID (PASID) and ARM SMMU's Sub Stream
ID. In addition to basic ID allocation, ioasid_set was defined as a
token that is shared by a group of IOASIDs. This set token can be used
for permission
On Mon, Sep 28, 2020 at 08:54:01AM -0700, H.J. Lu wrote:
> On Mon, Sep 28, 2020 at 8:43 AM Yu, Yu-cheng wrote:
> >
> > On 9/25/2020 11:23 AM, Andrew Cooper wrote:
> > > On 15/09/2020 12:28, Jarkko Sakkinen wrote:
> > >> diff --git a/arch/x86/entry/vdso/vsgx_enter_enclave.S
> > >>
When an IOASID set is used for guest SVA, each VM will acquire its
ioasid_set for IOASID allocations. IOASIDs within the VM must have a
host/physical IOASID backing, mapping between guest and host IOASIDs can
be non-identical. IOASID set private ID (SPID) is introduced in this
patch to be used as
IOASID private data can be cleared by ioasid_attach_data() with a NULL
data pointer. A common use case is for a caller to free the data
afterward. ioasid_attach_data() calls synchronize_rcu() before return
such that free data can be sure without outstanding readers.
However, since
IOASID is used to identify address spaces that can be targeted by device
DMA. It is a system-wide resource that is essential to its many users.
This document is an attempt to help developers from all vendors navigate
the APIs. At this time, ARM SMMU and Intel’s Scalable IO Virtualization
(SIOV)
On 27 Sep 2020, at 18:47, Bjorn Helgaas wrote:
On Sun, Sep 27, 2020 at 06:45:45PM -0500, Bjorn Helgaas wrote:
On Tue, Sep 22, 2020 at 02:38:56PM -0700, Sean V Kelley wrote:
From: Qiuxu Zhuo
pci_dbg(dev, "broadcast error_detected message\n");
if (state ==
On Mon, 28 Sep 2020 12:58:59 +0200
Peter Zijlstra wrote:
> > -struct clock_read_data *sched_clock_read_begin(unsigned int *seq)
> > +notrace struct clock_read_data *sched_clock_read_begin(unsigned int *seq)
> > {
> > *seq = raw_read_seqcount_latch();
> > return cd.read_data + (*seq &
On Sat, 26 Sep 2020 12:27:00 +0530 Geetha sowjanya wrote:
> From: Subbaraya Sundeep
>
> Packet replication feature present in Octeontx2
> is a hardware linked list of PF and its VF
> interfaces so that broadcast packets are sent
> to all interfaces present in the list. It is
> driver job to add
On Fri, 25 Sep 2020 08:17:58 -0700
Bailu Lin wrote:
> This is a Chinese translated version of Documentation/arm64/amu.rst
>
> Signed-off-by: Bailu Lin
> ---
> Changes in v3:
> - Remove Documentation/arm64/amu.rst's inappropriate License claim.
> Changes in v2:
> - Add index to arm64
On Fri, 25 Sep 2020 19:25:58 -0700
Bailu Lin wrote:
> Add arm64 subdirectory into the table of Contents for zh_CN,
> then add other translations in arm64 conveniently.
>
> Signed-off-by: Bailu Lin
> ---
> Changes in v5:
> - Remove zh_CN/arm64/index.rst's inappropriate License claim.
> Changes
Hi Naresh,
On 9/23/20 9:20 PM, Naresh Kamboju wrote:
> arc:allmodconfig build failed with gcc-8, gcc-9 and gcc-10 on Linus's
> mainline tree.
>
> Build log:
>
> make -sk KBUILD_BUILD_USER=TuxBuild -C/linux ARCH=arc
> CROSS_COMPILE=arc-elf32- HOSTCC=gcc CC="sccache arc-elf32-gcc"
On Mon, 28 Sep 2020 18:39:59 +
Mark Starovoytov wrote:
> Map the address to my private mail, because my Marvell account has been
> suspended.
>
> Signed-off-by: Mark Starovoytov
> ---
> .mailmap | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/.mailmap b/.mailmap
> index
> On Sep 28, 2020, at 1:52 PM, Nick Desaulniers wrote:
>
> On Mon, Sep 28, 2020 at 3:34 AM 'Dmitry Vyukov' via Clang Built Linux
> wrote:
>>
>>> On Mon, Sep 28, 2020 at 10:54 AM Borislav Petkov wrote:
>>>
>>> On Mon, Sep 28, 2020 at 10:40:19AM +0200, Dmitry Vyukov wrote:
I meant the
On Mon, Sep 28, 2020 at 01:34:31PM -0700, Kees Cook wrote:
> On Sun, Sep 27, 2020 at 07:35:26PM -0400, Joel Fernandes wrote:
> > On Fri, Sep 25, 2020 at 05:47:14PM -0600, Shuah Khan wrote:
> > > This patch series is a result of discussion at the refcount_t BOF
> > > the Linux Plumbers Conference.
Hi,
On Sun, Sep 27, 2020 at 9:32 PM Maulik Shah wrote:
>
> An interrupt that is disabled/masked but set for wakeup still needs to
> be able to wake up the system from sleep states like "suspend to RAM".
>
> This change introduces IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND flag. If irqchip
> have this flag
On Mon, Sep 28, 2020 at 09:48:10AM -0700, Dave Hansen wrote:
> On 9/28/20 9:19 AM, Jarkko Sakkinen wrote:
> > On Mon, Sep 28, 2020 at 07:04:38AM -0700, Dave Hansen wrote:
> >> EMODPE is virtually irrelevant for this whole thing. The x86 PTE
> >> permissions still specify the most restrictive
> -Original Message-
> From: Sebastian Andrzej Siewior [mailto:bige...@linutronix.de]
> Sent: Tuesday, September 29, 2020 4:25 AM
> To: Song Bao Hua (Barry Song)
> Cc: a...@linux-foundation.org; herb...@gondor.apana.org.au;
> da...@davemloft.net; linux-cry...@vger.kernel.org;
Hello Dear,
Please forgive me for stressing you with my predicaments as I know
that this letter may come to you as big surprise. Actually, I came
across your E-mail from my personal search afterward I decided to
email you directly believing that you will be honest to fulfill my
final wish before
Hello,
I apologize for the late reply. The proposed interface has been an
ongoing topic and area of experimentation within Facebook as well,
which makes it a bit difficult to respond with certainty here.
I agree with both your usecases. They apply to us as well. We
currently make two small
On Mon, Sep 28, 2020 at 08:43:16AM -0700, Yu, Yu-cheng wrote:
> On 9/25/2020 11:23 AM, Andrew Cooper wrote:
> > On 15/09/2020 12:28, Jarkko Sakkinen wrote:
> > > diff --git a/arch/x86/entry/vdso/vsgx_enter_enclave.S
> > > b/arch/x86/entry/vdso/vsgx_enter_enclave.S
> > > new file mode 100644
> > >
On Wed, Sep 23, 2020 at 08:32:43AM +0200, Auger Eric wrote:
> On 9/21/20 10:45 PM, Will Deacon wrote:
> > On Mon, Sep 14, 2020 at 11:13:07AM -0700, Vennila Megavannan wrote:
> >> From: Srinath Mannam
> >>
> >> Add provision to change default value of MSI IOVA base to platform's
> >> suitable IOVA
> Page isolation doesn't actually touch the pages, it simply isolates
> pageblocks and moves all free pages to the MIGRATE_ISOLATE freelist.
>
> We already place pages to the tail of the freelists when undoing
> isolation via __putback_isolated_page(), let's do it in any case
> (e.g., if order <=
On Mon, Sep 28, 2020 at 3:34 AM 'Dmitry Vyukov' via Clang Built Linux
wrote:
>
> On Mon, Sep 28, 2020 at 10:54 AM Borislav Petkov wrote:
> >
> > On Mon, Sep 28, 2020 at 10:40:19AM +0200, Dmitry Vyukov wrote:
> > > I meant the kernel self-corrupts itself, that just wasn't detected by
> > > KASAN,
On 9/23/20 11:41 PM, Oliver O'Halloran wrote:
> On Thu, Sep 24, 2020 at 3:15 PM Mamatha Inamdar
> wrote:
>>
>> This patch adds a brief MODULE_DESCRIPTION to rpadlpar_io kernel modules
>> (descriptions taken from Kconfig file)
>>
>> Signed-off-by: Mamatha Inamdar
>> ---
>>
Hi Tomasz,
On Mon, Sep 28, 2020 at 06:49:22PM +0200, Tomasz Figa wrote:
> On Mon, Sep 28, 2020 at 4:18 PM Rafael J. Wysocki wrote:
> >
> > On Sun, Sep 27, 2020 at 9:44 PM Tomasz Figa wrote:
> > >
> > > On Sun, Sep 27, 2020 at 9:39 PM Wolfram Sang wrote:
> > > >
> > > >
> > > > > I think we
From: AngeloGioacchino Del Regno
Resetting the VBIF before power collapse is done to avoid getting
bogus FIFO entries during the suspend sequence or subsequent resume,
but this is doable only on Adreno 510 and Adreno 530, as the other
units will tendentially lock up.
Especially on Adreno 508,
From: AngeloGioacchino Del Regno
The "main" if branch where we program the other registers for the
Adreno 5xx family of GPUs should not contain the PC_DBG_ECO_CNTL
register programming because this has logical similarity
differences from all the others.
A later commit will show the entire sense
From: Konrad Dybcio
The upstream API for some reason uses logbase2 instead of
just passing the argument as-is, whereas downstream CAF
kernel does the latter.
Hence, a mistake has been made when porting:
4 is the value that's supposed to be passed, but
log2(4) = 2. Changing the value to 16 (=
From: Konrad Dybcio
Port over the command from downstream to prevent undefined
behaviour.
Signed-off-by: Konrad Dybcio
Signed-off-by: AngeloGioacchino Del Regno
---
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git
From: Konrad Dybcio
Port over the command from downstream to prevent undefined
behaviour.
Signed-off-by: Konrad Dybcio
Signed-off-by: AngeloGioacchino Del Regno
---
drivers/gpu/drm/msm/adreno/a5xx.xml.h | 2 ++
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 3 +++
2 files changed, 5 insertions(+)
From: AngeloGioacchino Del Regno
The Adreno 508/509/512 GPUs are stripped versions of the Adreno
5xx found in the mid-end SoCs such as SDM630, SDM636, SDM660 and
SDA variants; these SoCs are usually provided with ZAP firmwares,
but they have no available GPMU.
Signed-off-by: AngeloGioacchino
From: AngeloGioacchino Del Regno
The PC_DBG_ECO_CNTL register on the Adreno A5xx family gets
programmed to some different values on a per-model basis.
At least, this is what we intend to do here;
Unfortunately, though, this register is being overwritten with a
static magic number, right after
On Tue, Aug 25, 2020 at 4:22 AM Maulik Shah wrote:
>
> Commit efde2659b0fe ("drivers: qcom: rpmh-rsc: Use rcuidle tracepoints
> for rpmh") was written to fix a bug seen in an unmerged series that
> implemented a struct generic_pm_domain::power_off() callback calling
> rpmh_flush(). See stack
From: AngeloGioacchino Del Regno
In this patch series, we are adding support for lower end Adreno 5
series GPUs, such as A508, A509 and A512 that we have found in the
Qualcomm SDM630, SDM636 and SDM660 SoCs.
On a note, adding support for these three units, also adds 99% of
the required "things"
On 9/28/20 1:18 PM, John Hubbard wrote:
On 9/28/20 6:02 AM, Jason Gunthorpe wrote:
On Sun, Sep 27, 2020 at 11:21:59PM -0700, John Hubbard wrote:
...
+gcc -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
This gcc has to come from some makefile variable
I plan on posting a v2 with this
On Mon, Sep 28, 2020 at 02:44:57PM +0200, Lukas Bulwahn wrote:
> Commit b6724f118d44 ("prctl: Hook L1D flushing in via prctl") checks the
> validity for enable_l1d_flush_for_task() and introduces some superfluous
> local variables for that implementation.
>
> make clang-analyzer on x86_64
On Mon, Sep 28, 2020 at 05:44:35PM +0100, Andrew Cooper wrote:
> On 28/09/2020 01:58, Jarkko Sakkinen wrote:
> > On Fri, Sep 25, 2020 at 07:23:59PM +0100, Andrew Cooper wrote:
> >> On 15/09/2020 12:28, Jarkko Sakkinen wrote:
> >>> diff --git a/arch/x86/entry/vdso/vsgx_enter_enclave.S
> >>>
Hi Artem,
On Mon, Sep 28, 2020 at 10:42 AM Art Nikpal wrote:
>
> OK today i can't reproduce it again on my new equipments ;-)
>
> may be its some specific problem we can try forget about this
uh, this is weird
please let me know if you can reproduce it on your new hardware
thanks for the update
> __putback_isolated_page() already documents that pages will be placed to
> the tail of the freelist - this is, however, not the case for
> "order >= MAX_ORDER - 2" (see buddy_merge_likely()) - which should be
> the case for all existing users.
>
> This change affects two users:
> - free page
Hi,
On Mon, Sep 28, 2020 at 12:27:24AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:d1d2220c Add linux-next specific files for 20200924
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=166cb7d990
> kernel
On Thu, Sep 17, 2020 at 02:16:42PM +0530, Anshuman Khandual wrote:
> During memory hotplug process, the linear mapping should not be created for
> a given memory range if that would fall outside the maximum allowed linear
> range. Else it might cause memory corruption in the kernel virtual space.
On 28 Sep 2020, at 15:34, Matthew Wilcox wrote:
> On Mon, Sep 28, 2020 at 01:54:01PM -0400, Zi Yan wrote:
>> struct {/* Page table pages */
>> -unsigned long _pt_pad_1;/* compound_head */
>> -pgtable_t pmd_huge_pte; /* protected
On Sun, Sep 27, 2020 at 07:35:26PM -0400, Joel Fernandes wrote:
> On Fri, Sep 25, 2020 at 05:47:14PM -0600, Shuah Khan wrote:
> > This patch series is a result of discussion at the refcount_t BOF
> > the Linux Plumbers Conference. In this discussion, we identified
> > a need for looking closely
> __free_pages_core() is used when exposing fresh memory to the buddy
> during system boot and when onlining memory in generic_online_page().
>
> generic_online_page() is used in two cases:
>
> 1. Direct memory onlining in online_pages().
> 2. Deferred memory onlining in memory-ballooning-like
On Sun, Sep 27, 2020 at 10:18 PM 'Dmitry Vyukov' via Clang Built Linux
wrote:
>
> On Sun, Sep 27, 2020 at 4:57 PM Borislav Petkov wrote:
> >
> > On Sat, Sep 19, 2020 at 01:32:14AM -0700, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit:
V1: Introduces a retry loop that attempts a CMA allocation a finite
number of times before giving up:
https://lkml.org/lkml/2020/8/5/1097
https://lkml.org/lkml/2020/8/11/893
V2: Introduces an indefinite retry for CMA allocations. David Hildenbrand
raised a page pinning example which precludes
CMA allocations will fail if 'pinned' pages are in a CMA area, since we
cannot migrate pinned pages. The _refcount of a struct page being greater
than _mapcount for that page can cause pinning for anonymous pages. This
is because try_to_unmap(), which (1) is called in the CMA allocation path,
and
Il giorno lun 28 set 2020 alle ore 18:16 Jordan Crouse
ha scritto:
>
> On Sat, Sep 26, 2020 at 02:51:44PM +0200, khol...@gmail.com wrote:
> > From: Konrad Dybcio
> >
> > The upstream API for some reason uses logbase2 instead of
> > just passing the argument as-is, whereas downstream CAF
> >
v2:
- update documentation
- include SPDX line in extracted script
v1:
https://lore.kernel.org/linux-kselftest/20200925234527.1885234-1-keesc...@chromium.org/
Hi!
I really like Hangbin Liu's intent[1] but I think we need to be a little
more clean about the implementation. This extracts
Currently with run_kselftest.sh there is no way to choose which test
we could run. All the tests listed in kselftest-list.txt are all run
every time. This patch enhanced the run_kselftest.sh to make the test
collections (or tests) individually selectable. e.g.:
$ ./run_kselftest.sh -c seccomp -t
Instead of building a script on the fly (which just repeats the same
thing for each test collection), move the script out of the Makefile and
into run_kselftest.sh, which reads kselftest-list.txt.
Adjust the emit_tests target to report each test on a separate line so
that test running tools (e.g.
Update the installation commands and path details, detail the new
options available in the run_kselftests.sh script.
Signed-off-by: Kees Cook
---
Documentation/dev-tools/kselftest.rst | 35 +--
1 file changed, 22 insertions(+), 13 deletions(-)
diff --git
On Mon, Sep 28 2020 at 21:05, Edward Cree wrote:
> efx_ef10_try_update_nic_stats_vf() used in_interrupt() to figure out
> whether it is safe to sleep (for MCDI) or not.
> The only caller from which it was not is efx_net_stats(), which can be
> invoked under dev_base_lock from
Hi Andrew,
On Sat, Sep 26, 2020 at 4:45 PM Andrew Lunn wrote:
>
> > I checked this again for the vendor u-boot (where Ethernet is NOT
> > working) as well as the Android kernel which this board was shipped
> > with (where Ethernet is working)
> > - in u-boot the MAC side adds a 2ns TX delay and
On Mon, Sep 28, 2020 at 12:33:57PM +0200, Dmitry Vyukov wrote:
> It may be related to VMs, but also may well not be related to VMs.
Right, and so I tried to set it up on a test box here, it looks like
it worked, see below. I'll let it fuzz in the coming days and see what
explodes...
2020/09/28
On Mon, Sep 28, 2020 at 12:45:27PM -0700, Dave Hansen wrote:
> On 9/28/20 12:32 PM, Jarkko Sakkinen wrote:
> > My problem is that I fully agree what you say in your description but
> > disagree on that EMODPE should not be mentioned.
>
> I'll just be very clear: I'm not willing to ack any patch
On 9/28/20 6:02 AM, Jason Gunthorpe wrote:
On Sun, Sep 27, 2020 at 11:21:59PM -0700, John Hubbard wrote:
...
+gcc -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
This gcc has to come from some makefile variable
ahem, yes, that really should have just been $(CC), will change to that.
This is
On Mon, Sep 28, 2020 at 09:48:10AM -0700, Dave Hansen wrote:
> On 9/28/20 9:19 AM, Jarkko Sakkinen wrote:
> > On Mon, Sep 28, 2020 at 07:04:38AM -0700, Dave Hansen wrote:
> >> EMODPE is virtually irrelevant for this whole thing. The x86 PTE
> >> permissions still specify the most restrictive
Hagen reported broken strings in python3 tracepoint scripts:
make PYTHON=python3
./perf record -e sched:sched_switch -a -- sleep 5
./perf script --gen-script py
./perf script -s ./perf-script.py
[..]
sched__sched_switch 7 563231.7595257920 swapper \
On Fri, 18 Sep 2020 at 07:51, Sasha Levin wrote:
>
> From: Raviteja Narayanam
>
> [ Upstream commit 42e11948ddf68b9f799cad8c0ddeab0a39da33e8 ]
>
> On some platforms, the log is corrupted while console is being
> registered. It is observed that when set_termios is called, there
> are still some
On Mon, Sep 28, 2020 at 3:04 PM Kees Cook wrote:
> Regardless, let's take things one step at a time. First, let's do
> the simplest version of the feature, and then let's look at further
> optimizations.
>
> Can you send a v3 and we can continue from there?
ok, will do later tonight / tomorrow.
Ping!
(Warning 1: is this architecture still maintained?)
-- Steve
On Fri, 18 Sep 2020 15:25:07 -0400
Steven Rostedt wrote:
> From: Steven Rostedt (VMware)
>
> In a conversation on #linux-rt, it was asked if the irq disabling and
> enabling functions were a compiler barrier, and reads wont
In preparation for making the interface public,
document all the structures. Special care is taken to
annotate those fields that depart from the H264 syntax.
This commit only adds documentation and doesn't affect
functionality in any way.
Signed-off-by: Ezequiel Garcia
---
v2:
* Address the
ping
On Mon, Sep 14, 2020 at 02:00:30PM +0100, Matthew Wilcox (Oracle) wrote:
> The critical patch to review here is patch 11, "Handle truncates that
> split THPs". This code is shared with shmem, and while xfstests passes
> (both with the tmpfs filesystem and with THPs enabled for XFS), it is
On Tue, 29 Sep 2020 at 01:41, Naresh Kamboju wrote:
>
> On Fri, 18 Sep 2020 at 07:55, Sasha Levin wrote:
> >
> > From: Raviteja Narayanam
> >
> > [ Upstream commit 42e11948ddf68b9f799cad8c0ddeab0a39da33e8 ]
> >
> > On some platforms, the log is corrupted while console is being
> > registered.
> Let's prepare for additional flags and avoid long parameter lists of bools.
> Follow-up patches will also make use of the flags in __free_pages_ok(),
> however, I wasn't able to come up with a better name for the type - should
> be good enough for internal purposes.
>
> Reviewed-by: Alexander
On 2020-09-27 12:23, Minchan Kim wrote:
On Wed, Sep 23, 2020 at 10:16:25PM -0700, Chris Goldsworthy wrote:
CMA allocations will fail if 'pinned' pages are in a CMA area, since
we
+config CMA_RETRY_SLEEP_DURATION
+ int "Sleep duration between retries"
+ depends on CMA
+
On Fri, 18 Sep 2020 at 07:55, Sasha Levin wrote:
>
> From: Raviteja Narayanam
>
> [ Upstream commit 42e11948ddf68b9f799cad8c0ddeab0a39da33e8 ]
>
> On some platforms, the log is corrupted while console is being
> registered. It is observed that when set_termios is called, there
> are still some
efx_ef10_try_update_nic_stats_vf() used in_interrupt() to figure out
whether it is safe to sleep (for MCDI) or not.
The only caller from which it was not is efx_net_stats(), which can be
invoked under dev_base_lock from net-sysfs::netstat_show().
So add a new update_stats_atomic() method to
On 9/28/20 5:57 AM, Jason Gunthorpe wrote:
On Sun, Sep 27, 2020 at 11:21:53PM -0700, John Hubbard wrote:
diff --git a/tools/testing/selftests/vm/Makefile
b/tools/testing/selftests/vm/Makefile
index d1ae706d9927..9cc6bc087461 100644
+++ b/tools/testing/selftests/vm/Makefile
@@ -130,3 +130,5 @@
On Sun, Sep 27, 2020 at 10:48:40AM +0800, Hangbin Liu wrote:
> On Fri, Sep 25, 2020 at 04:45:27PM -0700, Kees Cook wrote:
> > Currently with run_kselftest.sh there is no way to choose which test
> > we could run. All the tests listed in kselftest-list.txt are all run
> > every time. This patch
On Sun, Sep 27, 2020 at 09:53:34AM +0800, Hangbin Liu wrote:
> On Fri, Sep 25, 2020 at 02:16:14PM -0700, Kees Cook wrote:
> > On Fri, Sep 25, 2020 at 01:51:53PM +0530, Naresh Kamboju wrote:
> > > On Mon, 14 Sep 2020 at 07:53, Hangbin Liu wrote:
> > > >
> > > > Currently, after generating
Hi Benjamin,
On Fri, 18 Sep 2020 at 05:35, Benjamin Bara - SKIDATA
wrote:
>
> Hi all,
>
> there are still cases where the decoder starves.
> Also, the failure log at the bottom contradicts with the 2x256 bytes
> assumption.
> When I increase the threshold to 512 bytes, the respective video (and
On Sat, Sep 26, 2020 at 01:11:50PM -0500, YiFei Zhu wrote:
> On Fri, Sep 25, 2020 at 2:07 AM YiFei Zhu wrote:
> > I'll try to profile the latter later on my qemu-kvm, with a recent
> > libsecomp with binary tree and docker's profile, probably both direct
> > filter attaches and filter attaches
On Thu, 20 Aug 2020 at 15:23, Greg Kroah-Hartman
wrote:
>
> From: Muchun Song
>
> commit 0cb2f1372baa60af8456388a574af6133edd7d80 upstream.
>
> We found a case of kernel panic on our server. The stack trace is as
> follows(omit some irrelevant information):
>
> BUG: kernel NULL pointer
Right now .kunitconfig and the build dir are automatically created if
the build dir does not exists; however, if the build dir is present and
.kunitconfig is not, kunit_tool will crash.
Fix this by checking for both the build dir as well as the .kunitconfig.
NOTE: This depends on commit
From: AngeloGioacchino Del Regno
Add the bindings for the Qualcomm SDM660-class NoC, valid for
SDM630, SDM636, SDM660 and SDA variants.
Signed-off-by: AngeloGioacchino Del Regno
---
.../bindings/interconnect/qcom,sdm660.yaml| 147 ++
1 file changed, 147 insertions(+)
From: AngeloGioacchino Del Regno
This patch series adds the SDM660 interconnect provider driver in
order to stop some timeouts and achieve some decent performance by
avoiding to be NoC limited.
It's also providing some power consumption improvement, but I have
only measured that as less heat,
On 9/28/20 12:26 PM, Ira Weiny wrote:
On Sun, Sep 27, 2020 at 11:21:58PM -0700, John Hubbard wrote:
...
+echo "--"
+echo "running gup_test -ct -F 0x1 0 19 0x1000"
+echo " Dumps pages 0, 19, and 4096, using pin_user_pages (-F 0x1)"
From: AngeloGioacchino Del Regno
Introduce a driver for the Qualcomm interconnect busses found in
the SDM630/SDM636/SDM660 SoCs.
The topology consists of several NoCs that are controlled by a
remote processor that collects the aggregated bandwidth for each
master-slave pairs.
On a note, these
On Thu, Sep 24, 2020 at 05:32:31PM +0300, Eli Cohen wrote:
> Change core vdpa functionality into a loadbale module such that upcoming
> block implementation will be able to use it.
>
> Signed-off-by: Eli Cohen
Why don't we merge this patch together with the block module?
> ---
> V0 --> V1:
>
On Thu, 2020-09-24 at 10:29 +0200, Hans Verkuil wrote:
> Hi Ezequiel,
>
> On 21/09/2020 21:38, Ezequiel Garcia wrote:
> > In preparation for making the interface public,
> > document all the structures. Special care is taken to
> > annotate those fields that depart from the H264 syntax.
> >
> >
On Fri, 18 Sep 2020 at 08:00, Sasha Levin wrote:
>
> From: Arnaldo Carvalho de Melo
>
> [ Upstream commit 7fcdccd4237724931d9773d1e3039bfe053a6f52 ]
>
> When applying a patch by Ian I incorrectly converted to zfree() an
> expression that involved testing some other struct member, not the one
>
On 9/28/20 10:24 AM, Shannon Nelson wrote:
On 9/27/20 12:48 PM, Thomas Gleixner wrote:
From: Sebastian Andrzej Siewior
The in_interrupt() usage in this driver tries to figure out which
context
may sleep and which context may not sleep. in_interrupt() is not really
suitable as it misses both
VFIO currently exposes the usable IOVA regions through the
VFIO_IOMMU_GET_INFO ioctl. However it fails to take into account
the dma_mask of the devices within the container. The top limit
currently is defined by the iommu aperture.
So, for instance, if the IOMMU supports up to 48bits, it may give
VFIO currently exposes the usable IOVA regions through the
VFIO_IOMMU_GET_INFO ioctl / VFIO_IOMMU_TYPE1_INFO_CAP_IOVA_RANGE
capability. However it fails to take into account the dma_mask
of the devices within the container. The top limit currently is
defined by the iommu aperture.
So, for
Now the IOVA regions beyond the dma_mask and the vfio aperture are
removed from the usable IOVA ranges, the API becomes reliable to
compute the max IOVA. Let's advertise this by using a new version
for the capability.
Signed-off-by: Eric Auger
---
drivers/vfio/vfio_iommu_type1.c | 2 +-
1 file
We currently fail to merge a region into another one whose top
address is ULLONG_MAX. This situation shouldn't have been encountered
yet due to the nature of reserved regions being exposed but this
would happen if we were to expose regions beyond the reach of dma_mask
or beyond the reach of the
On Mon, Sep 28, 2020 at 12:36 PM Linus Torvalds
wrote:
>
> So I'll do the pte wrprotect/restore removal. Anybody willing to do
> and test the sequence count approach?
So the wrprotect removal is trivial, with most of it being about the comments.
However, when I look at this, I am - once again -
On Mon, Sep 28, 2020 at 07:41:13PM +0530, Pintu Agarwal wrote:
> On Mon, 28 Sep 2020 at 19:15, Pintu Agarwal wrote:
> >
> > On Sat, 26 Sep 2020 at 22:10, Kees Cook wrote:
> >
> > > > >> I wonder if this is an Android Common kernel?
> > > > It uses the below kernel for 4.14:
> > > >
After commit 01feba590cd6 ("ACPI: Do not create new NUMA domains from
ACPI static tables that are not SRAT"):
$ scripts/config --file arch/x86/configs/x86_64_defconfig -d NUMA -e ACPI_NFIT
$ make -skj"$(nproc)" distclean defconfig drivers/acpi/nfit/
drivers/acpi/nfit/core.c: In function
v2: Add more description text in the new Kconfig settings (Bjorn).
v1: Original
Jim Quinlan (1):
PCI: pcie_bus_config can be set at build time
drivers/pci/Kconfig | 56 +
drivers/pci/pci.c | 12 ++
2 files changed, 68 insertions(+)
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