On Sun, Aug 04, 2019 at 09:19:01PM -0700, Paul E. McKenney wrote:
> On Sun, Aug 04, 2019 at 01:24:46PM -0700, Paul E. McKenney wrote:
> > For whatever it is worth, the things on my list include using 25 rounds
> > of resched_cpu() on each CPU with ten-jiffy wait between each (instead of
> >
On 7/29/19 7:23 PM, Cong Wang wrote:
> On Mon, Jul 29, 2019 at 1:24 AM Jia-Ju Bai wrote:
>>
>> In dequeue_func(), there is an if statement on line 74 to check whether
>> skb is NULL:
>> if (skb)
>>
>> When skb is NULL, it is used on line 77:
>> prefetch(>end);
>>
>> Thus, a possible
On Sun, Aug 04, 2019 at 11:41:59AM -0700, Paul E. McKenney wrote:
> On Sun, Aug 04, 2019 at 04:48:35PM +0200, Peter Zijlstra wrote:
> > On Sun, Aug 04, 2019 at 04:43:17PM +0200, Peter Zijlstra wrote:
> > > On Fri, Aug 02, 2019 at 08:15:01AM -0700, Paul E. McKenney wrote:
> > > > The
Hi,
On 02/08/19 4:51 PM, Anil Varughese wrote:
> Configure CDNS_UFS_REG_HCLKDIV in .hce_enable_notify() instead of
> .setup_clock() because if UFSHCD resets the controller ip because
> of phy or device related errors then CDNS_UFS_REG_HCLKDIV is
> reset to default value and .setup_clock() is not
On 08/04/2019 05:36 PM, Vignesh Raghavendra wrote:
> External E-Mail
>
>
> Hi Tudor,
>
> On 31-Jul-19 2:33 PM, tudor.amba...@microchip.com wrote:
>> From: Boris Brezillon
>>
>> Move the locking hooks in a separate struct so that we have just
>> one field to update when we change the locking
Nandor Han points out that there might be drivers that can use
the reboot-mode interfaces but might also be usable on configurations
without device tree.
Move the 'depends on OF' dependency into CONFIG_REBOOT_MODE since
that is the only thing that truely has a compile-time dependency
on
On 05/08/2019 09:42, Martin Kepplinger wrote:
> On 05.08.19 09:39, Daniel Lezcano wrote:
>> On 05/08/2019 08:53, Martin Kepplinger wrote:
>>
>> [ ... ]
>>
> +static s64 cpuidle_cooling_runtime(struct cpuidle_cooling_device
> *idle_cdev)
> +{
> + s64 next_wakeup;
> + unsigned
Signed-off-by: merwintf
---
drivers/staging/rtl8188eu/core/rtw_security.c | 525 +++---
1 file changed, 334 insertions(+), 191 deletions(-)
diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c
b/drivers/staging/rtl8188eu/core/rtw_security.c
index 2f90f60f1681..b9f5ebdae034
On Thu, Jul 25, 2019 at 06:39:54PM -0500, Pierre-Louis Bossart wrote:
> Add debugfs file to dump the Cadence master registers
>
> Credits: this patch is based on an earlier internal contribution by
> Vinod Koul, Sanyog Kale, Shreyas Nc and Hardik Shah. The main change
> is the use of scnprintf to
On Mon, Aug 5, 2019 at 9:10 AM Nandor Han wrote:
>
> On 7/8/19 3:52 PM, Arnd Bergmann wrote:
> > Without CONFIG_OF, we get a build failure in the reboot-mode
> > implementation:
> >
> > drivers/power/reset/reboot-mode.c: In function 'reboot_mode_register':
> >
Commit-ID: aaefca8e30d9df7a4ca13c9c8e135dd227b8ff19
Gitweb: https://git.kernel.org/tip/aaefca8e30d9df7a4ca13c9c8e135dd227b8ff19
Author: Tony Luck
AuthorDate: Thu, 18 Jul 2019 11:29:20 -0700
Committer: Borislav Petkov
CommitDate: Mon, 5 Aug 2019 09:34:02 +0200
x86/mce: Don't check for
On Wed, Jul 03, 2019 at 10:14:39AM +, Chester Lin wrote:
> Currently there are two ways to handle ACPI device ejection. When an eject
> event happens on a container, the kernel just sends KOBJ_CHANGE to
> userland and userland should handle offline operation. For other device
> types,
On 08/01/2019 09:29 AM, Boris Brezillon wrote:
> External E-Mail
>
>
> On Wed, 31 Jul 2019 09:03:31 +
> wrote:
>
>> From: Tudor Ambarus
>>
>> The goal is to move the quad_enable manufacturer specific init in the
>> nor->manufacturer->fixups->default_init()
>>
>> The legacy/core
On 05.08.19 09:39, Daniel Lezcano wrote:
> On 05/08/2019 08:53, Martin Kepplinger wrote:
>
> [ ... ]
>
+static s64 cpuidle_cooling_runtime(struct cpuidle_cooling_device
*idle_cdev)
+{
+ s64 next_wakeup;
+ unsigned long state = idle_cdev->state;
+
+ /*
On 05.08.19 09:37, Daniel Lezcano wrote:
> On 05/08/2019 07:11, Martin Kepplinger wrote:
>> ---
>
> [ ... ]
>
>>> +static s64 cpuidle_cooling_runtime(struct cpuidle_cooling_device
>>> *idle_cdev)
>>> +{
>>> + s64 next_wakeup;
>>> + unsigned long state = idle_cdev->state;
>>> +
>>> + /*
On 05/08/2019 08:53, Martin Kepplinger wrote:
[ ... ]
>>> +static s64 cpuidle_cooling_runtime(struct cpuidle_cooling_device
>>> *idle_cdev)
>>> +{
>>> + s64 next_wakeup;
>>> + unsigned long state = idle_cdev->state;
>>> +
>>> + /*
>>> +* The function should not be called when there is
On 05/08/2019 07:11, Martin Kepplinger wrote:
> ---
[ ... ]
>> +static s64 cpuidle_cooling_runtime(struct cpuidle_cooling_device *idle_cdev)
>> +{
>> +s64 next_wakeup;
>> +unsigned long state = idle_cdev->state;
>> +
>> +/*
>> + * The function should not be called when there is
On Sat, 3 Aug 2019 11:15:34 +0100
Catalin Marinas wrote:
> On Sat, Aug 03, 2019 at 09:42:12AM +0900, Masami Hiramatsu wrote:
> > On Fri, 2 Aug 2019 07:48:13 +1000
> > Stephen Rothwell wrote:
> > > In commit
> > >
> > > 72de4a283cb1 ("arm64: kprobes: Recover pstate.D in single-step
> > >
hi Ulf
On 7/26/19 11:41 AM, Ludovic BARRE wrote:
hi Ulf
Thanks to your "Clarify comments ..." commit, like is closes
I resumed upstream of this series.
On 7/15/19 6:31 PM, Ulf Hansson wrote:
On Mon, 3 Jun 2019 at 17:55, Ludovic Barre wrote:
From: Ludovic Barre
"busy_detect_flag" is used
On 08/05/2019 08:14 AM, Vignesh Raghavendra wrote:
> External E-Mail
>
>
>
> On 31/07/19 2:42 PM, tudor.amba...@microchip.com wrote:
>> From: Boris Brezillon
>>
>> S3AN flashes use a specific opcode to read the status register.
>> We currently use the SPI_S3AN flag to decide whether this
strncmp(str, const, len) is error-prone since the len is
easy to be wrong because of counting error or sizeof(const)
without - 1.
Use the newly introduced str_has_prefix() to substitute
it to make code better.
Signed-off-by: Chuhong Yuan
---
arch/ia64/hp/sim/boot/bootloader.c | 2 +-
On 19/07/19 1:59 PM, Vignesh Raghavendra wrote:
> On x86_64, when CONFIG_OF is not disabled:
>
> WARNING: unmet direct dependencies detected for MUX_MMIO
> Depends on [n]: MULTIPLEXER [=y] && (OF [=n] || COMPILE_TEST [=n])
> Selected by [y]:
> - HBMC_AM654 [=y] && MTD [=y] &&
On 30.07.19 02:17, Gustavo A. R. Silva wrote:
> Mark switch cases where we are expecting to fall through.
>
> This patch fixes the following warnings (Building: s390):
>
> drivers/s390/net/ctcm_fsms.c: In function ‘ctcmpc_chx_attnbusy’:
> drivers/s390/net/ctcm_fsms.c:1703:6: warning: this
On 05/08/2019 13:21:57+0800, Hsin-Hsiung Wang wrote:
> From: Ran Bi
>
> Alarm registers high byte was reserved for other functions.
> This add mask in alarm registers operation functions.
> This also fix error condition in interrupt handler.
>
> Fixes: fc2979118f3f ("rtc: mediatek: Add MT6397
Hi,
The subject should be:
"rtc: mt6397: Add support for the MediaTek MT6358 RTC"
On 05/08/2019 13:21:58+0800, Hsin-Hsiung Wang wrote:
> From: Ran Bi
>
> This add support for the MediaTek MT6358 RTC. Driver using
> compatible data to store different RTC_WRTGR address offset.
>
> Review-by:
From: Song Hui
Update the NXP GPIO node dt-binding file for QorIQ and
Layerscape platforms, and add one more example with
ls1028a GPIO node.
Signed-off-by: Song Hui
---
Documentation/devicetree/bindings/gpio/gpio-mpc8xxx.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
On Fri, 2019-08-02 at 10:51 +0200, Stefan Agner wrote:
> On 2019-07-31 16:52, Philippe Schenker wrote:
> > On Wed, 2019-07-31 at 09:56 -0300, Fabio Estevam wrote:
> > > On Wed, Jul 31, 2019 at 9:38 AM Philippe Schenker
> > > wrote:
> > > > From: Stefan Agner
> > > >
> > > > Add pinmuxing and do
CC Phil
On Sun, Aug 4, 2019 at 5:40 PM Nishka Dasgupta wrote:
> Each iteration of for_each_child_of_node puts the previous node, but in
> the case of a return from the middle of the loop, there is no put, thus
> causing a memory leak. Hence add an of_node_put before the return in
> three places.
On Mon, Aug 5, 2019 at 12:44 PM Paolo Bonzini wrote:
>
> On 05/08/19 09:12, Anup Patel wrote:
> > On Fri, Aug 2, 2019 at 2:33 PM Paolo Bonzini wrote:
> >>
> >> On 02/08/19 09:47, Anup Patel wrote:
> >>> + if (!kvm_riscv_vcpu_has_interrupt(vcpu)) {
> >>
> >> This can be
On 7/8/19 3:52 PM, Arnd Bergmann wrote:
Without CONFIG_OF, we get a build failure in the reboot-mode
implementation:
drivers/power/reset/reboot-mode.c: In function 'reboot_mode_register':
drivers/power/reset/reboot-mode.c:72:2: error: implicit declaration of function
On Sun, Aug 4, 2019 at 10:03 AM Tomer Tayar wrote:
>
> The patch adds a missing update of the DRAM memory consumption, when a
> context is being torn down without an organized release of the allocated
> memory.
>
> Signed-off-by: Tomer Tayar
> ---
> drivers/misc/habanalabs/memory.c | 2 ++
> 1
From: Adrian Hunter
Expose the aux_source attribute flag to the user to configure, by adding a
config term 'aux-source'. For events that support it, selection of
'aux-source' causes the generation of AUX records instead of event records.
This requires that an AUX area event is also provided.
From: Adrian Hunter
Document how to select PEBS via Intel PT and how to display synthesized
PEBS samples.
Signed-off-by: Adrian Hunter
Signed-off-by: Alexander Shishkin
---
tools/perf/Documentation/intel-pt.txt | 15 +++
1 file changed, 15 insertions(+)
diff --git
From: Adrian Hunter
Process synth_opts.other_events and attr.aux_source to set up for
synthesizing PEBs via Intel PT events.
Signed-off-by: Adrian Hunter
Signed-off-by: Alexander Shishkin
---
tools/perf/arch/x86/util/intel-pt.c | 23 +++
tools/perf/util/intel-pt.c
From: Adrian Hunter
Add itrace option 'o' to synthesize events recorded in the AUX area due to
the use of perf record's aux-source config term.
Signed-off-by: Adrian Hunter
Signed-off-by: Alexander Shishkin
---
tools/perf/Documentation/itrace.txt | 2 ++
tools/perf/util/auxtrace.c |
If PEBS declares ability to output its data to Intel PT stream, use the
aux_source attribute bit to enable PEBS data output to PT. This requires
a PT event to be present and scheduled in the same context. Unlike the
DS area, the kernel does not extract PEBS records from the PT stream to
generate
Hi Peter,
Fifth attempt at the PEBS-via-PT feature. The previous ones were [1], [2],
[3], [4]. This one addresses review comments in patches 1/7 and 2/7, the
tooling patches are intact, but I'm including them anyway.
The PEBS feature: output to Intel PT stream instead of the DS area. It's
From: Adrian Hunter
Add aux_source attribute flag to match the kernel's perf_event.h file.
Signed-off-by: Adrian Hunter
Signed-off-by: Alexander Shishkin
---
tools/include/uapi/linux/perf_event.h | 3 ++-
tools/perf/util/evsel.c | 1 +
2 files changed, 3 insertions(+), 1
In some cases, ordinary (non-AUX) events can generate data for AUX events.
For example, PEBS events can come out as records in the Intel PT stream
instead of their usual DS records, if configured to do so.
One requirement for such events is to consistently schedule together, to
ensure that the
Hi Greg,
On Sat, Aug 3, 2019 at 1:36 AM Greg Ungerer wrote:
> On 2/8/19 10:10 am, Finn Thain wrote:
> > Since commit d3b41b6bb49e ("m68k: Dispatch nvram_ops calls to Atari or
> > Mac functions"), Coldfire builds generate compiler warnings due to the
> > unconditional inclusion of asm/atarihw.h
On 05/08/19 09:12, Anup Patel wrote:
> On Fri, Aug 2, 2019 at 2:33 PM Paolo Bonzini wrote:
>>
>> On 02/08/19 09:47, Anup Patel wrote:
>>> + if (!kvm_riscv_vcpu_has_interrupt(vcpu)) {
>>
>> This can be kvm_arch_vcpu_runnable instead, since kvm_vcpu_block will
>> check it anyway before
On Thu, Aug 1, 2019 at 5:28 PM Tomer Tayar wrote:
>
> Add a meaningful name to the general PSOC application status register
> which better describes its usage in keeping the HW state.
>
> Signed-off-by: Tomer Tayar
> ---
> drivers/misc/habanalabs/goya/goya.c | 4 ++--
>
On Fri, Aug 2, 2019 at 2:33 PM Paolo Bonzini wrote:
>
> On 02/08/19 09:47, Anup Patel wrote:
> > + if (!kvm_riscv_vcpu_has_interrupt(vcpu)) {
>
> This can be kvm_arch_vcpu_runnable instead, since kvm_vcpu_block will
> check it anyway before sleeping.
I think we can skip this check
On 05/08/19 08:55, Anup Patel wrote:
> On Fri, Aug 2, 2019 at 2:33 PM Paolo Bonzini wrote:
>>
>> On 02/08/19 09:47, Anup Patel wrote:
>>> + if (reg_num == KVM_REG_RISCV_CSR_REG(sip))
>>> + kvm_riscv_vcpu_flush_interrupts(vcpu, false);
>>
>> Not updating the vsip CSR here can cause
From: Song Hui
Update the nodes to include little-endian
property to be consistent with the hardware.
Signed-off-by: Song Hui
---
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 9 ++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git
> From: anson.hu...@nxp.com
> Sent: Tuesday, July 30, 2019 10:21 AM
>
> Use __maybe_unused for power management related functions instead of #if
> CONFIG_PM_SLEEP to simply the code.
>
> Signed-off-by: Anson Huang
Reviewed-by: Dong Aisheng
Regards
Aisheng
> From: anson.hu...@nxp.com
> Sent: Tuesday, July 30, 2019 10:21 AM
>
> Some platforms like i.MX8M series SoCs have clock control for TMU, add
> optional clocks property to the binding doc.
>
> Signed-off-by: Anson Huang
> Reviewed-by: Rob Herring
Reviewed-by: Dong Aisheng
Regards
Aisheng
> From: anson.hu...@nxp.com
> Sent: Tuesday, July 30, 2019 10:21 AM
>
> When registering tmu zone failed, the error path should be err_tmu instead of
> err_iomap, as iounmap() needs to be called.
>
> Signed-off-by: Anson Huang
Reviewed-by: Dong Aisheng
Regards
Aisheng
> From: anson.hu...@nxp.com
> Sent: Tuesday, July 30, 2019 10:21 AM
>
> Use devm_platform_ioremap_resource() instead of of_iomap() to save the
> iounmap() call in error handle path;
>
> Signed-off-by: Anson Huang
Reviewed-by: Dong Aisheng
Regards
Aisheng
> From: Anson Huang
>
> Some platforms like i.MX8MQ has clock control for this module, need to add
> clock operations to make sure the driver is working properly.
>
> Signed-off-by: Anson Huang
> Reviewed-by: Guido Günther
Reviewed-by: Dong Aisheng
Regards
Aisheng
On Mon, Aug 5, 2019 at 2:13 PM Leon Romanovsky wrote:
>
> On Sun, Aug 04, 2019 at 10:44:47PM +0800, Chuhong Yuan wrote:
> > On Sun, Aug 4, 2019 at 8:59 PM Leon Romanovsky wrote:
> > >
> > > On Sat, Aug 03, 2019 at 12:48:28AM +0800, Chuhong Yuan wrote:
> > > > refcount_t is better for reference
On Fri, Aug 2, 2019 at 2:33 PM Paolo Bonzini wrote:
>
> On 02/08/19 09:47, Anup Patel wrote:
> > + if (reg_num == KVM_REG_RISCV_CSR_REG(sip))
> > + kvm_riscv_vcpu_flush_interrupts(vcpu, false);
>
> Not updating the vsip CSR here can cause an interrupt to be lost, if the
> next
On 05.08.19 07:11, Martin Kepplinger wrote:
> ---
>
> On 05-04-18, 18:16, Daniel Lezcano wrote:
>> The cpu idle cooling driver performs synchronized idle injection across all
>> cpus belonging to the same cluster and offers a new method to cool down a
>> SoC.
>>
>> Each cluster has its own idle
On Tue, 2019-07-30 at 13:28 -0700, Benjamin Herrenschmidt wrote:
> > One problem is that we've an nvme parameter, io_queue_depth, that a user
> > could set to something less than 32, and then you won't be able to do
> > any IO. I'd recommend enforce the admin queue to QD1 for this device so
> >
These two variables are both defined in init_32.c and init_64.c. Move
them to init-common.c.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
On 08/01/2019 09:42 AM, Boris Brezillon wrote:
> Almost all of this (except the s3an specific bits) should be done in
> the previous patch. So I'll put a condition on the R-b I placed on patch
> 4: some of this code should be moved there.
You're right, will do.
Cheers,
ta
On Mon, Aug 05, 2019 at 12:41:45PM +0800, Jason Wang wrote:
>
> On 2019/8/5 下午12:36, Jason Wang wrote:
> >
> > On 2019/8/2 下午10:27, Michael S. Tsirkin wrote:
> > > On Fri, Aug 02, 2019 at 09:46:13AM -0300, Jason Gunthorpe wrote:
> > > > On Fri, Aug 02, 2019 at 05:40:07PM +0800, Jason Wang wrote:
On 31/07/19 2:16 PM, tudor.amba...@microchip.com wrote:
> From: Tudor Ambarus
>
> spi_nor_spansion_clear_sr_bp() depends on spansion_quad_enable().
> While spansion_quad_enable() is selected as default when
> initializing the flash parameters, the nor->quad_enable() method
> can be
Hi Andrew,
On 8/4/19 7:51 AM, Andrew Lunn wrote:
>>> The patchset looks better now. But is it ok, I wonder, to keep
>>> PHY_BCM_FLAGS_MODE_1000BX in phydev->dev_flags, considering that
>>> phy_attach_direct is overwriting it?
>>
>
>> I checked ftgmac100 driver (used on my machine) and it calls
Signed-off-by: Fam Zheng
---
block/bfq-cgroup.c | 95 ++---
block/bfq-iosched.h | 3 ++
2 files changed, 87 insertions(+), 11 deletions(-)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 28e5a9241237..de4fd8b725aa 100644
---
(Revision starting from v2 since v1 was used off-list)
Hi Paolo and others,
This adds to BFQ the missing per-device weight interfaces:
blkio.bfq.weight_device on legacy and io.bfq.weight on unified. The
implementation pretty closely resembles what we had in CFQ and the parsing code
is basically
On 08/01/2019 09:36 AM, Boris Brezillon wrote:
> On Wed, 31 Jul 2019 09:12:14 +
> wrote:
>
>
>> static inline bool spi_nor_protocol_is_dtr(enum spi_nor_protocol proto)
>> {
>> return !!(proto & SNOR_PROTO_IS_DTR);
>> @@ -384,6 +522,7 @@ struct flash_info;
>> *
Hi Bjorn,
On Wed, Jul 10, 2019 at 5:09 PM Vivek Gautam
wrote:
>
> From: Sai Prakash Ranjan
>
> Last level cache (aka. system cache) controller provides control
> over the last level cache present on SDM845. This cache lies after
> the memory noc, right before the DDR.
>
> Signed-off-by: Sai
On Mon, Aug 05, 2019 at 12:36:40PM +0800, Jason Wang wrote:
>
> On 2019/8/2 下午10:27, Michael S. Tsirkin wrote:
> > On Fri, Aug 02, 2019 at 09:46:13AM -0300, Jason Gunthorpe wrote:
> > > On Fri, Aug 02, 2019 at 05:40:07PM +0800, Jason Wang wrote:
> > > > > This must be a proper barrier, like a
On 08/05/2019 08:44 AM, Vignesh Raghavendra wrote:
>> From: Tudor Ambarus
>>
>> The write protection at power-up logic was split across functions
>> because of a dependency to spansion_quad_enable(). Group the code
>> in spi_nor_init() as the pointer to spansion_quad_enable() can be
>>
On Mon, Aug 05, 2019 at 12:33:45PM +0800, Jason Wang wrote:
>
> On 2019/8/2 下午10:03, Michael S. Tsirkin wrote:
> > On Fri, Aug 02, 2019 at 05:40:07PM +0800, Jason Wang wrote:
> > > Btw, I come up another idea, that is to disable preemption when vhost
> > > thread
> > > need to access the memory.
One may want to disable kaslr when boot, so provide a cmdline parameter
'nokaslr' to support this.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Diana
This patch add support to boot kernel from places other than KERNELBASE.
Since CONFIG_RELOCATABLE has already supported, what we need to do is
map or copy kernel to a proper place and relocate. Freescale Book-E
parts expect lowmem to be mapped by fixed TLB entries(TLB1). The TLB1
entries are not
The original kernel still exists in the memory, clear it now.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
Reviewed-by: Diana Craciun
Add a new helper create_tlb_entry() to create a tlb entry by the virtual
and physical address. This is a preparation to support boot kernel at a
randomized address.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul
M_IF_NEEDED is defined too many times. Move it to a common place.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
Reviewed-by: Diana Craciun
Add a new helper reloc_kernel_entry() to jump back to the start of the
new kernel. After we put the new kernel in a randomized place we can use
this new helper to enter the kernel and begin to relocate again.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Now the kernel base is a fixed value - KERNELBASE. To support KASLR, we
need a variable to store the kernel base.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
When kaslr is enabled, the kernel offset is different for every boot.
This brings some difficult to debug the kernel. Dump out the kernel
offset when panic so that we can easily debug the kernel.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin
This series implements KASLR for powerpc/fsl_booke/32, as a security
feature that deters exploit attempts relying on knowledge of the location
of kernel internals.
Since CONFIG_RELOCATABLE has already supported, what we need to do is
map or copy kernel to a proper place and relocate. Freescale
After we have the basic support of relocate the kernel in some
appropriate place, we can start to randomize the offset now.
Entropy is derived from the banner and timer, which will change every
build and boot. This not so much safe so additionally the bootloader may
pass entropy via the
Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe()
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/uaccess.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
If we take a UE on one of the instructions with a fixup entry, set nip
to continue execution at the fixup entry. Stop processing the event
further or print it.
Based-on-patch-by: Reza Arbab
Cc: Reza Arbab
Cc: Mahesh Salgaonkar
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/include/asm/mce.h
From: Balbir Singh
The current code would fail on huge pages addresses, since the shift would be
incorrect. Use the correct page shift value returned by __find_linux_pte() to
get the correct physical address. The code is more generic and can handle both
regular and compound pages.
Fixes:
Certain architecture specific operating modes (e.g., in powerpc machine
check handler that is unable to access vmalloc memory), the
search_exception_tables cannot be called because it also searches the module
exception tables if entry is not found in the kernel exception table.
Cc: Thomas
On Tue, Jul 30, 2019 at 10:56 PM James Bottomley wrote:
>
> On Tue, 2019-07-30 at 16:40 +0800, Chuhong Yuan wrote:
> > strncpy(dest, src, strlen(src)) leads to unterminated
> > dest, which is dangerous.
>
> I don't buy that. The structure is only used for the
> TW_IOCTL_GET_COMPATIBILITY_INFO
During a memcpy from a pmem device, if a machine check exception is
generated we end up in a panic. In case of fsdax read, this should
only result in a -EIO. Avoid MCE by implementing memcpy_mcsafe.
Before this patch series:
```
bash-4.4# mount -o dax /dev/pmem0 /mnt/pmem/
[ 7621.714094]
schedule_work() cannot be called from MCE exception context as MCE can
interrupt even in interrupt disabled context.
fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors")
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/kernel/mce.c | 8 +---
1 file changed, 5 insertions(+), 3
From: Balbir Singh
The pmem infrastructure uses memcpy_mcsafe in the pmem layer so as to
convert machine check exceptions into a return value on failure in case
a machine check exception is encountered during the memcpy. The return
value is the number of bytes remaining to be copied.
This patch
From: Reza Arbab
The function doesn't get used outside this file, so make it static.
Signed-off-by: Reza Arbab
Signed-off-by: Santosh Sivaraj
Reviewed-by: Nicholas Piggin
---
arch/powerpc/kernel/mce.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
On 17/07/19 2:18 PM, tudor.amba...@microchip.com wrote:
> From: Tudor Ambarus
>
> To avoid inadvertent writes during power-up, some flashes are
> write-protected by default after a power-on reset cycle.
> A Global Block-Protection Unlock command offers a single
> command cycle that unlocks
Hi Andrew,
On Sun, Aug 4, 2019 at 8:26 PM Andrew Lunn wrote:
>
> On Wed, Jul 31, 2019 at 03:10:32PM +0530, Harini Katakam wrote:
> > Add a new property to indicate when PS SGMII is used with NO
> > external PHY on board.
>
> Hi Harini
>
> What exactly is you use case? Are you connecting to a
On Sun, Aug 04, 2019 at 10:44:47PM +0800, Chuhong Yuan wrote:
> On Sun, Aug 4, 2019 at 8:59 PM Leon Romanovsky wrote:
> >
> > On Sat, Aug 03, 2019 at 12:48:28AM +0800, Chuhong Yuan wrote:
> > > refcount_t is better for reference counters since its
> > > implementation can prevent overflows.
> > >
Hi all,
Changes since 20190802:
The crypto tree gained a build failure for which I applied a patch.
Non-merge commits (relative to Linus' tree): 3992
4485 files changed, 238294 insertions(+), 107183 deletions(-)
I
On Sun, Aug 4, 2019 at 9:54 PM Nishka Dasgupta wrote:
>
> Each iteration of for_each_available_child_of_node puts the previous
> node, but in the case of a return from the middle of the loop, there is
> no put, thus causing a memory leak. Hence add an of_node_put before the
> return in two
On Sun, Aug 04, 2019 at 09:29:28AM +0530, Ajay Kaher wrote:
> coredump: fix race condition between mmget_not_zero()/get_task_mm()
> and core dumping
>
> [PATCH v5 1/3]:
> Backporting of commit 04f5866e41fb70690e28397487d8bd8eea7d712a upstream.
>
> [PATCH v5 2/3]:
> Extension of commit
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