On 11/16/18 1:31 AM, Andrew Morton wrote:
> On Mon, 12 Nov 2018 12:57:34 +0300 Pavel Tikhomirov
> wrote:
>
>> If all pages are deleted from the mapping by memory reclaim and also
>> moved to the cleancache:
>>
>> __delete_from_page_cache
>> (no shadow case)
>> unaccount_page_cache_page
>>
On Thu, Nov 15, 2018 at 11:30:15AM -0600, Bjorn Helgaas wrote:
>
> But I guess you have to do this anyway just to add the vendor/device
> ID to the driver, so maybe this isn't a big deal to you. If you can
> do a quirk like this in the driver, it would be invisible to me and I
> wouldn't care. I
On Fri, Nov 16, 2018 at 6:00 AM Teika Kazura wrote:
>
> SMBus works fine for the touchpad with id SYN3221, used in the HP 15-ay000
> series,
Nice.
Thanks for the patch.
Reviewed-by: Benjamin Tissoires
Cheers,
Benjamin
>
> This device has been reported in these messages in the "linux-input"
On Thu, Nov 15, 2018 at 1:01 PM Nadav Amit wrote:
>
> Introducing the use of asm macros in c-code broke distcc, since it only
> sends the preprocessed source file. The solution is to break the
> compilation into two separate phases of compilation and assembly, and
> between the two concatenate the
Add support to configure bit clock for secondary MI2S
TX interface.
Signed-off-by: Rohit kumar
---
sound/soc/qcom/sdm845.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index 84e6ee7..58593db 100644
--- a/sound/soc/qcom/
Update bit clock rate, slot width for TDM and MI2S
interfaces. Also add support for secondary MI2S TX
interface in SDM845 machine driver.
Rohit kumar (2):
ASoC: sdm845: Update slot_width for Quaternary TDM port
ASoC: sdm845: Add support for Secondary MI2S interface
sound/soc/qcom/sdm845.c |
Change slot_width for quaternary TDM port to 16 and
update bclk rate for TDM and MI2S interfaces
accordingly.
Signed-off-by: Rohit kumar
---
sound/soc/qcom/sdm845.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
inde
On Thu, Nov 15, 2018 at 1:01 PM Nadav Amit wrote:
>
> Changes in macros.S should trigger the recompilation of all C files, as
> the macros might need to affect their compilation.
>
> Acked-by: Ingo Molnar
> Signed-off-by: Nadav Amit
> ---
When we talked about this last time,
we agreed to not do
On Thu 15-11-18 16:07:16, Andrew Morton wrote:
> On Wed, 7 Nov 2018 11:18:30 +0100 Michal Hocko wrote:
>
> > From: Michal Hocko
> >
> > There is only very limited information printed when the memory offlining
> > fails:
> > [ 1984.506184] rac1 kernel: memory offlining [mem
> > 0x826-0
bd_stat reprenents things happened in backing device. Currently,
it supports bd_counts, bd_reads and bd_writes which are helpful
to understand wearout of flash and memory saving.
Signed-off-by: Minchan Kim
---
Documentation/ABI/testing/sysfs-block-zram | 8 ++
Documentation/blockdev/zram.tx
On small memory system, there are lots of write IO so if we use
flash device as swap, there would be serious flash wearout.
To overcome the problem, system developers need to design write
limitation strategy to guarantee flash health for entire product life.
This patch creates a new konb "writebac
This patch supports new feature "zram idle page writeback".
On zram-swap usecase, zram has usually idle swap pages come
from many processes. It's pointless to keep in memory(ie, zram).
To solve the problem, this feature gives idle page writeback to
backing device so the goal is to save more memory
[ 254.519728]
[ 254.520311] WARNING: inconsistent lock state
[ 254.520898] 4.19.0+ #390 Not tainted
[ 254.521387]
[ 254.521732] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 254.521732] zram_verify/2095 [HC0[0]:SC1[1]:
To support idle page writeback with upcoming patches, this patch
introduces a new ZRAM_IDLE flag.
Userspace can mark zram slots as "idle" via
"echo 1 > /sys/block/zramX/idle"
which marks every allocated zram slot as ZRAM_IDLE.
User could see it by /sys/kernel/debug/zram/zram0/block_state.
This patch does renaming some variables and restructuring
some codes for better redability in writeback and zs_free_page.
Signed-off-by: Minchan Kim
---
drivers/block/zram/zram_drv.c | 105 +-
drivers/block/zram/zram_drv.h | 8 +--
2 files changed, 44 insertions
Inherently, swap device has many idle pages which are rare touched since
it was allocated. It is never problem if we use storage device as swap.
However, it's just waste for zram-swap.
This patchset supports zram idle page writeback feature.
* Admin can define what is idle page "no access since X
Hi Srinivas,
One minor comment:
> struct snd_compr_ops *ops;
> + struct snd_dma_buffer *dma_buffer_p;
I don't think it is necessary to encode the type inside the name variable
So, dma_buffer would sounds better to me then dma_buffer_p;
> void *buffer;
It is also consist
On Fri, Nov 16, 2018 at 2:13 PM Nicolas Pitre wrote:
>
> On Thu, 15 Nov 2018, Masahiro Yamada wrote:
>
> > My main motivation of this commit is to clean up scripts/Kbuild.include
> > and scripts/Makefile.build.
> >
> > Currently, CONFIG_TRIM_UNUSED_KSYMS works with a tricky gimmick;
> > possibly e
On 16/11/18 1:17 AM, Evan Green wrote:
> On Wed, Nov 14, 2018 at 6:36 AM Veerabhadrarao Badiganti
> wrote:
>>
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index b001cf4..3c28152 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @
On Thu, Nov 15, 2018 at 10:49:17AM -0800, Davidlohr Bueso wrote:
> On Sun, 11 Nov 2018, Paul E. McKenney wrote:
>
> >From: Lance Roy
> >
> >lockdep_assert_held() is better suited to checking locking requirements,
> >since it only checks if the current thread holds the lock regardless of
> >whethe
Hi Boris,
Please apply this patch series [1] in the coming release.
--
Regards
Yogesh Gaur
[1] https://patchwork.ozlabs.org/project/linux-mtd/list/?series=70384
> -Original Message-
> From: Yogesh Narayan Gaur
> Sent: Tuesday, October 23, 2018 3:31 PM
> To: 'Boris Brezillon'
> Cc: Mark
On Wed, Nov 14, 2018 at 01:47:52PM +0100, Thierry Reding wrote:
> On Tue, Nov 13, 2018 at 10:08:22AM +0800, Ryder Lee wrote:
> > The flag 'has_clks' and related checks are superfluous as the CCF
> > subsystem does this for you.
>
> Both of these mechanisms aren't equivalent. While CCF can deal wit
On Fri, Nov 9, 2018 at 3:05 PM Jerome Brunet wrote:
>
> On Amlogic chipsets, the bias set through pinconf applies to the pad
> itself, not only the GPIO function. This means that even when we change
> the function of the pad from GPIO to anything else, the bias previously
> set still applies.
>
>
On Thu, Nov 15, 2018 at 11:19:24AM -0500, Alan Stern wrote:
> Paul and other LKMM maintainers:
>
> The following series of patches adds support for SRCU to the Linux
> Kernel Memory Model. That is, it adds the srcu_read_lock(),
> srcu_read_unlock(), and synchronize_srcu() primitives to the model.
The kernel can only be compiled with an optimization option (-O2, -Os,
or the currently proposed -Og). Hence, __OPTIMIZE__ is always defined
in the kernel source.
The fallback for -O0 case is just hypothetical and pointless. Moreover,
commit 0bb95f80a38f ("Makefile: Globally enable VLA warning") e
On 11/15/2018 04:19 AM, Keith Busch wrote:
> This series provides a new sysfs representation for heterogeneous
> system memory.
>
> The previous series that was specific to HMAT that this series was based
> on was last posted here: https://lkml.org/lkml/2017/12/13/968
>
> Platforms may provide mu
The introduction of these dummy BUILD_BUG_ON stubs dates back to
commit 903c0c7cdc21 ("sparse: define dummy BUILD_BUG_ON definition
for sparse"). At that time, BUILD_BUG_ON() was implemented with the
negative array trick, which Sparse complains about even if the
condition can be optimized and evalu
The kernel can only be compiled with an optimization option (-O2, -Os,
or the currently proposed -Og). Hence, __OPTIMIZE__ is always defined
in the kernel source.
A fallback for -O0 case is just hypothetical and pointless. Moreover,
commit 0bb95f80a38f ("Makefile: Globally enable VLA warning") ena
The introduction of these dummy BUILD_BUG_ON stubs dates back to
commit 903c0c7cdc21 ("sparse: define dummy BUILD_BUG_ON definition
for sparse"). At that time, BUILD_BUG_ON() was implemented with the
negative array trick, which Sparse complains about even if the
condition can be optimized and evalu
Previously, sys_link() will fail due to the new path is already existed.
this case ofen appears when we use a concated initrd, below is an
sample:
1) prepare a basic rootfs, it contains a regular files rc.local
lizhijian@:~/yocto-tiny-i386-2016-04-22$ cat etc/rc.local
#!/bin/sh
echo "Running /et
Hi all,
Changes since 20181115:
The xtensa tree gained a conflict against Linus' tree.
The block tree gained a conflict against Linus' tree.
The tip tree still had its build failure for which I applied a fix patch.
Non-merge commits (relative to Linus' tree): 3059
3132 files
Hi Frieder,
> -Original Message-
> From: Schrempf Frieder [mailto:frieder.schre...@kontron.de]
> Sent: Thursday, November 15, 2018 7:32 PM
> To: Yogesh Narayan Gaur
> Cc: Boris Brezillon ;
> linux-...@lists.infradead.org;
> linux-...@vger.kernel.org; Marek Vasut ; Mark
> Brown ; Han Xu ;
CPUID Fn8000_0007_EDX[CPB] is wrongly 0 on Model 17,
Stepping 0, but revision guide has not been released for
newer Family 17h models.
Tesed on AMD "Ryzen 7 2700U with Radeon Vega Mobile Gfx"
and "AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx",
their CPUID Fn_0001_EAX is 0x00810f10 and should
Sparse reports:
./include/linux/slab.h:332:43: warning: dubious: x & !y
Signed-off-by: Masahiro Yamada
---
include/linux/slab.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 918f374..d395c73 100644
--- a/include/linux/slab.
On Tue, Nov 06, 2018 at 09:19:36AM +, Anson Huang wrote:
> The "fsl,mf-mix-wakeup-irq" is ONLY used as a temporary
> solution in NXP's internal tree for Mega/Fast Mix off
> feature after suspend, upstream kernel does NOT need it,
> remove it.
>
> Signed-off-by: Anson Huang
Applied both, than
On Thu, Nov 15, 2018 at 9:03 PM Doug Anderson wrote:
>
> Hi,
>
> On Thu, Nov 15, 2018 at 4:42 PM Derek Basehore wrote:
> >
> > This adds the xin32k clock to the RK3399 CPU. Even though it's not
> > directly used, muxes will end up traversing the entire clk tree on
> > calls to determine_rate if i
This adds the xin32k clock to the RK3399 CPU. Even though it's not
directly used, muxes will end up traversing the entire clk tree on
calls to determine_rate if it doesn't exist.
Signed-off-by: Derek Basehore
---
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 7 +++
1 file changed, 7 insertions(
On Thu, 15 Nov 2018, Masahiro Yamada wrote:
> My main motivation of this commit is to clean up scripts/Kbuild.include
> and scripts/Makefile.build.
>
> Currently, CONFIG_TRIM_UNUSED_KSYMS works with a tricky gimmick;
> possibly exported symbols are detected by letting $(CPP) replace
> EXPORT_SYMB
Hi,
On Thu, Nov 15, 2018 at 4:42 PM Derek Basehore wrote:
>
> This adds the xin32k clock to the RK3399 CPU. Even though it's not
> directly used, muxes will end up traversing the entire clk tree on
> calls to determine_rate if it doesn't exist.
>
> Signed-off-by: Derek Basehore
> ---
> arch/arm
SMBus works fine for the touchpad with id SYN3221, used in the HP 15-ay000
series,
This device has been reported in these messages in the "linux-input" mailing
list:
* https://marc.info/?l=linux-input&m=152016683003369&w=2
* https://www.spinics.net/lists/linux-input/msg52525.html
Reported-by: N
syzbot has found a reproducer for the following crash on:
HEAD commit:da5322e65940 Merge tag 'selinux-pr-20181115' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1570390540
kernel config: https://syzkaller.appspot.com/x
On Thu, Nov 15, 2018 at 01:37:35PM -0800, Andrew Morton wrote:
>On Thu, 15 Nov 2018 07:50:40 +0800 Wei Yang wrote:
>
>> For one zone, there are three digits to describe its space range:
>>
>> spanned_pages
>> present_pages
>> managed_pages
>>
>> The detailed meaning is written in inc
Commit 0aa802a79469 ("perf stat: Get rid of extra clock display
function") introduced scale and unit for clock events. Thus,
perf_stat__update_shadow_stats() now saves scaled values of
clock events in msecs, instead of original nsecs. But while
calculating values of shadow stats we still consider c
On Thu, Nov 15, 2018 at 4:23 PM Srinivas Kandagatla
wrote:
> Yes, this is not the solution, but it proves that the hand-off between
> booloaders and kernel is the issue.
>
> In general there is wider issue with resources hand-off between
> bootloader and kernel.
>
> There has been some proposal i
On 15 November 2018 at 21:32, Linus Walleij wrote:
> Demote the DBx500 PRCMU clocksource to quality 100 and
> mark it as NONSTOP so it will still be used for
> timekeeping across suspend/resume.
>
> The Nomadik MTU timer which has higher precision will
> be used when the system is up and running,
On 15-11-18, 11:20, Andy Gross wrote:
> On Thu, Nov 15, 2018 at 09:15:18AM +0530, Vinod Koul wrote:
> > On 01-10-18, 11:51, Vinod Koul wrote:
> > > This adds prng-ee nodes for msm8996 and sdm845
> >
> > Ping Andy, would appreciate if you can pick these up.
>
> Done. I did have to massage the loc
On Mon, Nov 05, 2018 at 02:58:02PM +0100, Clément Péron wrote:
> From: Colin Didier
>
> The MX6 Audmux differs from MX51.
>
> This patch adds the audmux for i.MX6 family.
>
> Signed-off-by: Colin Didier
> Signed-off-by: Clément Péron
I think you should send it to ASoC maintainer and list for
On Mon, Nov 05, 2018 at 11:48:04AM +0100, Alex Gonzalez wrote:
> This patch corrects indentation problems in the gpmigrp and i2c1grp nodes.
>
> Signed-off-by: Alex Gonzalez
Applied, thanks.
On Mon, Nov 05, 2018 at 11:43:42AM +0100, Alex Gonzalez wrote:
> The wireless variants of the ConnecCore 6UL SOM include a Qualcomm
> QCA6564 wireless chip with dual WiFi and Bluetooth.
>
> Both the ConnectCore 6UL SBC Express and Pro boards fit a wireless SOM.
>
> The Wifi is connected through t
Hi Andrew,
On Thu, Nov 15, 2018 at 03:10:48PM -0800, Andrew Morton wrote:
> On Tue, 4 Sep 2018 11:48:25 +0100 Mark Rutland wrote:
>
> > To minimize repetition, to allow for future rework, and to ensure
> > regularity of the various atomic APIs, we'd like to automatically
> > generate (the bulk
Resolve compile error for arch=um
pvpanic.c:(.text+0xb6): undefined reference to `devm_ioremap_resource'
Signed-off-by: Peng Hao
---
drivers/misc/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 642626a..f417b06 100644
2008(!) dual-core Atom box.
model name : Intel(R) Atom(TM) CPU 330 @ 1.60GHz
[1027540.690329] perf: interrupt took too long (12579 > 12560),
lowering kernel.perf_event_max_sample_rate to 15000
[1027540.774026] perf: interrupt took too long (15754 > 15723),
lowering kernel.perf_event_max_sa
On 11/15/18 7:19 PM, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the block tree got a conflict in:
>
> block/blk.h
>
> between commit:
>
> 1adfc5e4136f ("block: make sure discard bio is aligned with logical block
> size")
>
> from Linus' tree (precedes v4.20-rc2) and
Hi all,
Today's linux-next merge of the block tree got a conflict in:
block/blk.h
between commit:
1adfc5e4136f ("block: make sure discard bio is aligned with logical block
size")
from Linus' tree (precedes v4.20-rc2) and commit:
079076b3416e ("block: remove deadline __deadline manipula
Em Thu, Nov 15, 2018 at 04:01:46PM -0500, Liang, Kan escreveu:
>
>
> On 11/15/2018 3:44 PM, Jiri Olsa wrote:
> > On Wed, Nov 14, 2018 at 01:24:15PM -0800, kan.li...@linux.intel.com wrote:
> > > From: Kan Liang
> > >
> > > Perf tools cannot find the proper event list for Cascadelake server.
> >
rt5663 codec driver will support setting CPVDD and AVDD power supply
from device tree.
Signed-off-by: Cheng-Yi Chiang
---
Moved power supply properties to required properties.
Documentation/devicetree/bindings/sound/rt5663.txt | 6 ++
1 file changed, 6 insertions(+)
diff --git a/Documenta
kernfs_notify() does two notifications: poll and fsnotify. Originally,
both notifications were done from scheduled work context and all that
kernfs_notify() did was schedule the work.
This patch simply moves the poll notification from the scheduled work
handler to kernfs_notify(). The fsnotify not
Hi everyone,
I believe kernfs_notify() poll latency can be improved if the poll
notification is done from kernfs_notify() directly rather than scheduled
work context.
I am sure there are good reasons why the fsnotify notification must be
done from scheduled work context (an obvious one is that it
Hi Rob,
On 11/13/2018 11:43 AM, Lokesh Vutla wrote:
> Hi Rob,
>
> On 12/11/18 11:30 PM, Rob Herring wrote:
>> On Tue, Nov 06, 2018 at 02:10:58PM +0530, Lokesh Vutla wrote:
>>> Add the DT binding documentation for Interrupt router driver.
>>>
>>> Signed-off-by: Lokesh Vutla
>>> ---
>>> Changes si
On Thu, Nov 15, 2018 at 6:12 PM Rasmus Villemoes
wrote:
>
> On 15/11/2018 09.27, Masahiro Yamada wrote:
> > GNU Make supports 'define' ... 'endef' directive, which can describe
> > a recipe that consists of multiple lines.
> >
> > endef
> >
> > This does not actually exploit the benefits of 'def
On 11/15/18 5:01 PM, Jarkko Sakkinen wrote:
> Intel Software Guard eXtensions (SGX) is a set of CPU instructions that
> can be used by applications to set aside private regions of code and
> data. The code outside the enclave is disallowed to access the memory
> inside the enclave by the CPU access
On Thu, Nov 15, 2018 at 6:42 PM Rob Herring wrote:
>
> On Wed, Nov 14, 2018 at 1:39 PM jonsm...@gmail.com wrote:
> >
> > On Fri, Apr 20, 2018 at 9:36 PM Rob Herring wrote:
> > > I share the concern as I doubt most kernel developers don't know
> > > jsonschema. But then the alternative is us defi
On Thu, Nov 15, 2018 at 04:26:33PM -0800, Tadeusz Struk wrote:
> On 11/15/18 3:31 PM, Jarkko Sakkinen wrote:
> > You could drop these memset() calls and also one from
> > tpm_timeout_work(). The call could be done once in the beginning of
> > tpm_common_write() instead of having three different cal
On 11/15/18 at 03:32pm, Michal Hocko wrote:
> On Thu 15-11-18 21:38:40, Baoquan He wrote:
> > On 11/15/18 at 02:19pm, Michal Hocko wrote:
> > > On Thu 15-11-18 21:12:11, Baoquan He wrote:
> > > > On 11/15/18 at 09:30am, Michal Hocko wrote:
> > > [...]
> > > > > It would be also good to find out whe
On Thu, Nov 15, 2018 at 11:48:20AM -0800, Florian Fainelli wrote:
>
> OK, would you mind testing this below? It seems to me that 8250_of.c is
> incompatible with arch/powerpc/kernel/legacy_serial.c and that is what
> is causing the issue here.
>
> diff --git a/drivers/tty/serial/8250/Kconfig
> b/
On Thu, Nov 15, 2018 at 5:55 AM, David Herrmann wrote:
> Hi
>
> On Thu, Nov 15, 2018 at 12:09 AM Kees Cook wrote:
>> On Wed, Nov 14, 2018 at 9:40 AM, Laura Abbott wrote:
> [...]
>> > Can we switch to strscpy instead? This will quiet gcc and avoid the
>> > issues with strlcpy.
>>
>> Yes please: i
Add a selftest for SGX. It is a trivial test where a simple enclave
copies one 64-bit word of memory between two memory locations given to
the enclave as arguments.
Signed-off-by: Jarkko Sakkinen
---
tools/testing/selftests/x86/Makefile | 10 +
tools/testing/selftests/x86/sgx/Makefile
Add VMA callbacks for ptrace() that can be used with debug enclaves.
With debug enclaves data can be read and write the memory word at a time
by using ENCLS(EDBGRD) and ENCLS(EDBGWR) leaf instructions.
Signed-off-by: Jarkko Sakkinen
---
drivers/platform/x86/intel_sgx/sgx_vma.c | 109
Wire up the EPC manager's reclaim flow to the SGX driver's swapping
functionality. In the long term there will be multiple users of the
EPC manager, e.g. SGX driver and KVM, thus the interface between the
EPC manager and the driver is fairly genericized and decoupled. But
to avoid adding unusued
Because the kernel is untrusted, swapping pages in/out of the Enclave
Page Cache (EPC) has specialized requirements:
* The kernel cannot directly access EPC memory, i.e. cannot copy data
to/from the EPC.
* To evict a page from the EPC, the kernel must "prove" to hardware that
are no valid TLB
Intel Software Guard eXtensions (SGX) is a set of CPU instructions that
can be used by applications to set aside private regions of code and
data. The code outside the enclave is disallowed to access the memory
inside the enclave by the CPU access control.
SGX driver provides a ioctl API for loadi
From: Sean Christopherson
Enumerate Enclave Page Cache (EPC) sections via CPUID and add the data
structures necessary to track EPC pages so that they can be allocated,
freed and managed. As a system may have multiple EPC sections, invoke
CPUID on SGX sub-leafs until an invalid leaf is encountere
From: Sean Christopherson
Add a helper function to perform ENCLS(EINIT) with the correct LE
hash MSR values. ENCLS[EINIT] initializes an enclave, verifying the
enclave's measurement and preparing it for execution, i.e. the enclave
cannot be run until it has been initialized. The measurement asp
At this time there is no support for reclaiming pages prior to the
owner explicitly freeing the page. As for freeing pages, because
freeing a page is expected to succeed in the vast majority of cases
and because most call sites will not be equipped to handle failure,
provide a variant for freeing
ENCLS is an umbrella instruction for a variety of cpl0 SGX functions.
The ENCLS function that is executed is specified in EAX, with each
function potentially having more leaf-specific operands beyond EAX.
ENCLS introduces its own (positive value) error codes that (some)
leafs use to return failure
From: Sean Christopherson
Add a new IA32_FEATURE_CONTROL bit, SGX_LE_WR. When set, SGX_LE_WR
allows software to write the SGXLEPUBKEYHASH MSRs (see below). The
The existence of the bit is enumerated by CPUID as X86_FEATURE_SGX_LC.
Like all other flags in IA32_FEATURE_CONTROL, the MSR must be lo
SGX defines its own CPUID leaf, 0x12, along with a variable number of
sub-leafs. Sub-leafs 0 and 1 are always available if SGX is supported
and enumerate various SGX features, e.g. instruction sets and enclave
capabilities. Sub-leafs 2+ are variable, both in their existence and
in what they enume
The SGX architecture defines an extensive set of error codes that are
used by ENCL{S,U,V} instructions to provide software with (somewhat)
precise error information. Though they are architectural, define the
known error codes in a separate file from sgx_arch.h so that they can
be exposed to usersp
Define the data structures used by various ENCLS functions needed for
Linux to support all SGX1 and SGX2 ENCLS leaf functions. This is not
an exhaustive representation of all SGX data structures as several are
only consumed by ENCLU (userspace), e.g. REPORT and KEYREQUEST, while
others are only co
ENCLS, a.k.a. Enclave System instruction, is an umbrella instruction
for a variety of privileged SGX functions. The ENCLS function to be
executed is specified in EAX, a la GETSEC of SMX/TXT fame. Leafs may
use additional registers for function-specific operands. ENCLS also
introduces its own set
From: Sean Christopherson
The PF_SGX bit is set if and only if the #PF is detected by the SGX
Enclave Page Cache Map (EPCM). The EPCM is a hardware-managed table
that enforces accesses to an enclave's EPC pages in addition to the
software-managed kernel page tables, i.e. the effective permission
From: Sean Christopherson
Add a new IA32_FEATURE_CONTROL bit, SGX_ENABLE, which must be set in
order to execute SGX instructions, i.e. ENCL{S,U,V}. The existence of
the bit is enumerated by CPUID as X86_FEATURE_SGX. Like all other
flags in IA32_FEATURE_CONTROL, the MSR must be locked for SGX_EN
From: Sean Christopherson
Similar to other large Intel features such as VMX and TXT, SGX must be
explicitly enabled in IA32_FEATURE_CONTROL MSR to be truly usable.
Clear all SGX related capabilities if SGX is not fully enabled in
IA32_FEATURE_CONTROL or if the SGX1 instruction set isn't supported
From: Sean Christopherson
The SGX bit is set in the #PF error code if and only if the fault is
detected by the Enclave Page Cache Map (EPCM), a hardware-managed
table that enforces the paging permissions defined by the enclave,
e.g. to prevent the kernel from changing the permissions of an
enclav
From: Kai Huang
X86_FEATURE_SGX_LC reflects whether or not the CPU supports SGX Launch
Control, i.e. enumerates the existence of IA32_FEATURE_CONTROL's
SGX_LE_WR bit and the IA32_SGXLEPUBKEYHASH MSRs.
Signed-off-by: Kai Huang
Signed-off-by: Jarkko Sakkinen
---
arch/x86/include/asm/cpufeatures
From: Kai Huang
X86_FEATURE_SGX reflects whether or not the CPU supports Intel's
Software Guard eXtensions (SGX).
Signed-off-by: Kai Huang
Signed-off-by: Jarkko Sakkinen
---
arch/x86/include/asm/cpufeatures.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/cpufeatures
From: Sean Christopherson
CPUID_12_EAX is an Intel-defined feature bits leaf dedicated for SGX
that enumerates the SGX instruction sets that are supported by the
CPU, e.g. SGX1, SGX2, etc... Because Linux currently only cares about
two bits (SGX1 and SGX2) and there are currently only four docum
Add the maintainer information for the SGX subsystem.
Signed-off-by: Jarkko Sakkinen
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 0abecc528dac..aaf56b544858 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7676,6 +7676,13 @@ L: li
On 11/15/18 4:21 PM, Li, Aubrey wrote:
> On 2018/11/15 23:40, Dave Hansen wrote:
>> On 11/14/18 3:00 PM, Aubrey Li wrote:
>>> AVX-512 component has 3 states, only Hi16_ZMM state causes notable
>>> frequency drop. Add per task Hi16_ZMM state tracking to context switch.
>>
>> Just curious, but is the
On 11/07/18 at 11:18am, Michal Hocko wrote:
> From: Michal Hocko
>
> __dump_page messages use KERN_EMERG resp. KERN_ALERT loglevel (this is
> the case since 2004). Most callers of this function are really detecting
> a critical page state and BUG right after. On the other hand the
> function is c
This adds the xin32k clock to the RK3399 CPU. Even though it's not
directly used, muxes will end up traversing the entire clk tree on
calls to determine_rate if it doesn't exist.
Signed-off-by: Derek Basehore
---
arch/arm64/boot/dts/rockchip/rk3399.dtsi | 7 +++
1 file changed, 7 insertions(
The patch
regulator/of_get_regulator: add child path to find the regulator supplier
has been applied to the regulator tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
All being well this means that it will be integrated into the linux-next
tree (usually somet
On 11/15/18 4:19 PM, Guenter Roeck wrote:
> NACK. This message is displayed if/when the watchdog application
> exits without stopping the watchdog and/or without closing properly.
> This _is_ critical since it will reboot the system after the next
> timeout period.
>
> If userspace triggers this m
On 2018/11/15 23:18, Dave Hansen wrote:
> On 11/14/18 3:00 PM, Aubrey Li wrote:
>> +void arch_thread_state(struct seq_file *m, struct task_struct *task)
>> +{
>> +/*
>> + * Report AVX-512 Hi16_ZMM registers usage
>> + */
>> +if (task->thread.fpu.hi16zmm_usage)
>> +seq_pu
Current libbfd feature test unconditionally links against -liberty and -lz.
While it's required on some systems (e.g. opensuse), it's completely
unnecessary on the others, where only -lbdf is sufficient (debian).
This patch streamlines (and renames) the following feature checks:
feature-libbfd
This is already done for us internally by the signal machinery.
Cc: pet...@infradead.org
Cc: mi...@kernel.org
Signed-off-by: Davidlohr Bueso
---
kernel/locking/mutex.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 3f8a35
This is already done for us internally by the signal machinery.
Signed-off-by: Davidlohr Bueso
---
mm/filemap.c | 2 +-
mm/gup.c | 2 +-
mm/hugetlb.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index 81adec8ee02c..abd6c4591855 100644
---
This is already done for us internally by the signal machinery.
Cc: vgu...@synopsys.com
Signed-off-by: Davidlohr Bueso
---
arch/arc/mm/fault.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index c9da6102eb4f..6b6df8f9f882 100644
---
This is already done for us internally by the signal machinery.
Cc: pet...@infradead.org
Cc: mi...@kernel.org
Signed-off-by: Davidlohr Bueso
---
kernel/sched/core.c | 2 +-
kernel/sched/swait.c | 2 +-
kernel/sched/wait.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/k
This is already done for us internally by the signal machinery.
Cc: linux-...@vger.kernel.org
Cc: p...@axentia.se
Signed-off-by: Davidlohr Bueso
---
drivers/i2c/busses/i2c-ibm_iic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c
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