On Mon, Jul 24, 2017 at 01:38:59PM -0700, David Miller wrote:
> From: Jason Wang
> Date: Wed, 19 Jul 2017 16:54:44 +0800
>
> > Hi:
> >
> > This series brings two optimizations for virtio-net XDP:
> >
> > - avoid reset during XDP set
> > - turn off offloads on demand
> >
> > Changes from V1:
>
On Wed, Jul 19, 2017 at 04:54:49PM +0800, Jason Wang wrote:
> Current XDP implementation wants guest offloads feature to be disabled
> on device. This is inconvenient and means guest can't benefit from
> offloads if XDP is not used. This patch tries to address this
> limitation by disabling the off
>
> On Mon, 24 Jul 2017 13:46:07 +0800
> "Huang\, Ying" wrote:
>
> > Hi, Steven,
> >
> > We are working on parallelizing secondary CPU bootup. So we need to
> > measure the bootup time of secondary CPU, that is, measure time spent in
> > smp_init() and its callees. But we found that ftrace no
Signed-off-by: Paul E. McKenney
---
Documentation/RCU/checklist.txt | 121 +++
Documentation/RCU/rcu.txt| 9 +--
Documentation/RCU/rcubarrier.txt | 5 ++
Documentation/RCU/torture.txt| 20 +--
Documentation/RCU/whatisRCU.txt | 5 +-
5 f
On Mon, Jul 17, 2017 at 07:27:56PM -0400, Tejun Heo wrote:
> I think it'd be nice to have a similar table for allocation patterns
> which aren't ideal for the original allocator. The biggest goal is
> avoiding cases where the allocator collapses and just glancing at the
> table doesn't seem very c
The memory-barriers.txt document contains an obsolete passage stating that
smp_read_barrier_depends() is required to force ordering for read-to-write
dependencies. We now know that this is not required, even for DEC Alpha.
This commit therefore updates this passage to state that read-to-write
depe
This commit documents the situations in which RCU needs the
scheduling-clock interrupt to be enabled, along with the consequences
of failing to meet RCU's needs in this area.
Signed-off-by: Paul E. McKenney
---
.../RCU/Design/Requirements/Requirements.html | 130 +
1 fil
Suggested-by: Jonathan Corbet
Signed-off-by: Paul E. McKenney
---
Documentation/core-api/kernel-api.rst | 49 +++
1 file changed, 49 insertions(+)
diff --git a/Documentation/core-api/kernel-api.rst
b/Documentation/core-api/kernel-api.rst
index 17b00914c6ab..8282
If a CPU is specified in the nohz_full= kernel boot parameter to a
kernel built with CONFIG_NO_HZ_FULL=y, then that CPU's callbacks will
be offloaded, just as if that CPU had also been specified in the
rcu_nocbs= kernel boot parameter. But the current documentation
states that the user must keep t
On Wed, Jul 19, 2017 at 10:39:53AM +0800, Jason Wang wrote:
>
>
> On 2017年07月19日 04:07, Michael S. Tsirkin wrote:
> > On Mon, Jul 17, 2017 at 08:44:01PM +0800, Jason Wang wrote:
> > > Current XDP implementation want guest offloads feature to be disabled
> > s/want/wants/
> >
> > > on qemu cli.
>
Signed-off-by: Paul E. McKenney
---
Documentation/RCU/rcu_dereference.txt | 61 ---
1 file changed, 21 insertions(+), 40 deletions(-)
diff --git a/Documentation/RCU/rcu_dereference.txt
b/Documentation/RCU/rcu_dereference.txt
index b2a613f16d74..1acb26b09b48 10064
Hello!
This series contains documentation updates:
1. Fix documentation of relation between nohz_full and rcu_nocbs.
2. General documentation update.
3. Update memory-barriers.txt for read-to-write dependencies.
4. Add RCU files to docbook-generation lists.
5. Documen
From: Colin Ian King
Trivial fix to spelling mistake in snprintf text
Signed-off-by: Colin Ian King
---
lib/test_kmod.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/test_kmod.c b/lib/test_kmod.c
index 6c1d678bcf8b..90c91541fc16 100644
--- a/lib/test_kmod.c
+++ b/
register_nmi_handler() can be called from PREEMPT_RT atomic context
(e.g. wakeup_cpu_via_init_nmi() or native_stop_other_cpus()), and thus
ordinary spinlocks cannot be used.
Signed-off-by: Scott Wood
---
arch/x86/kernel/nmi.c | 18 +-
1 file changed, 9 insertions(+), 9 deletions(
On Mon, 24 Jul 2017 14:24:44 -0700
Randy Dunlap wrote:
> > + * @arg...: arguments for @namefmt.
> > *
>
> Hm, Documentation/doc-guide/kernel-doc.rst says:
> If a function parameter is ``...`` (varargs), it should be listed
> in kernel-doc notation as: ``@...:``.
>
> but the patch here is fo
On Wed, Jul 19, 2017 at 04:54:49PM +0800, Jason Wang wrote:
> Current XDP implementation wants guest offloads feature to be disabled
> on device. This is inconvenient and means guest can't benefit from
> offloads if XDP is not used. This patch tries to address this
> limitation by disabling the off
On 07/25/2017 02:37 AM, Arnaldo Carvalho de Melo wrote:
Em Mon, Jul 24, 2017 at 10:51:58AM +0900, Taeung Song escreveu:
Hi Arnaldo,
Sorry, I'm too late.
On 07/21/2017 08:24 PM, Arnaldo Carvalho de Melo wrote:
Em Fri, Jul 21, 2017 at 06:41:29PM +0900, Taeung Song escreveu:
On 07/21/2017 04:
Certain SoCs like Texas Instruments AM335x and AM437x require parts
of the EMIF PM code to run late in the suspend sequence from SRAM,
such as saving and restoring the EMIF context and placing the memory
into self-refresh.
One requirement for these SoCs to suspend and enter its lowest power
mode,
This is v3 of the series introduces a ti-emif-sram driver to be used on
am335x and am437x, based on v4.13-rc2. This version addresses some
comments from Russell King and Johan Hovold in v2 found here [1].
Main changes are to patch two with grouping all the driver data into a single
struct and allo
Update the Texas Instruments EMIF binding document to include the device
tree bindings for ti,emif-am3352 and ti,emif-am4372 which are used by
the ti-emif-sram driver to provide low-level PM functionality.
Acked-by: Rob Herring
Acked-by: Tony Lindgren
Signed-off-by: Dave Gerlach
---
.../device
On 07/24/2017 12:59 PM, Jonathan Corbet wrote:
> The kerneldoc comment for kthread_create() had an incorrect argument name,
> leading to a warning in the docs build. Correct it, and make one more
> small step toward a warning-free build.
>
> Signed-off-by: Jonathan Corbet
> ---
> include/linux/
On Mon, Jul 24, 2017 at 02:00:45PM -0700, John Stultz wrote:
> On Thu, Jun 29, 2017 at 12:01 PM, Todd Kjos wrote:
> > The binder allocator assumes that the thread that
> > called binder_open will never die for the lifetime of
> > that proc. That thread is normally the group_leader,
> > however it
Some keyboard + touchpad devices have the Microsoft Win8 Wireless Radio
Controls extensions Usage Page define in the touchpad report descriptor,
so we need to support them in this driver.
Signed-off-by: João Paulo Rechi Vita
---
drivers/hid/hid-multitouch.c | 6 +-
1 file changed, 5 insertio
The Asus T304UA convertible sports a magnetic detachable keyboard with
touchpad, which is connected over USB. Most of the keyboard hotkeys are
exposed through the same USB interface as the touchpad, defined in the
report descriptor as follows:
0x06, 0x31, 0xFF, // Usage Page (Vendor Defined 0xFF3
The Asus T304UA convertible sports a magnetic detachable keyboard with
touchpad, which is connected over USB. Most of the keyboard hotkeys are exposed
through the same USB interface as the touchpad.
The mapping defined here is the same present in hid-asus, but when using
hid-asus to drive this tou
>From 86f4f1f6deb76849e00c761fa30eeb479f789c35 Mon Sep 17 00:00:00 2001
From: Alexander Popov
Date: Mon, 24 Jul 2017 23:16:28 +0300
Subject: [PATCH 2/2] mm/slub.c: add a naive detection of double free or
corruption
On 06.07.2017 03:27, Kees Cook wrote:
> This SLUB free list pointer obfuscation c
The check for column exclusion did not verify that the event being
checked was an L2 event, and not a software event.
Software events should not be checked for column exclusion.
This resulted in a group with both software and L2 events sometimes
incorrectly rejecting the L2 event for column exclusi
From: Kalle Valo
Date: Fri, 21 Jul 2017 19:12:54 +0300
> important fixes for net which had accumulated while I was away. I only
> applied the brcmfmac and rtlwifi patches only eight hours ago and I
> haven't seen the kbuild report yet so they might have some build
> breakage in theory. But the pa
From: Andy Shevchenko
There are new types and helpers that are supposed to be used in new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
Cc: Tomas Winkler
Cc: Guenter Roeck
Cc: Samuel Ortiz
Signed-off-by: Andy Shevchenko
Signed-off-by: Tomas Wink
Hi Josef,
On Tue, Jul 18, 2017 at 03:15:28PM -0400, Josef Bacik wrote:
> Ok so you say that this test is better for the area map allocator, so
> presumably
> this is worst case for the bitmap allocator? What does the average case look
> like?
The bitmap allocator should perform relatively con
Convert test to use TAP13 ksft framework. Output after conversion:
TAP version 13
# [RUN] Testing sync framework
ok 1 [RUN] test_alloc_timeline
ok 2 [RUN] test_alloc_fence
ok 3 [RUN] test_alloc_fence_negative
ok 4 [RUN] test_fence_one_timeline_wait
ok 5 [RUN] test_fence_on
Some tests print final pass/fail message based on fail count. Add
ksft_get_*_cnt() API to kselftest framework to return counts.
Update ksft_print_cnts() to print the test results summary message with
individual pass, fail, ... counters.
Signed-off-by: Shuah Khan
---
tools/testing/selftests/ksel
Sync test doesn't differentiate between sync unsupported and test run
by non-root user and treats both as unsupported cases.
Fix it to add handling for these two different scenarios.
Signed-off-by: Shuah Khan
---
tools/testing/selftests/sync/sync_test.c | 23 +++
1 file chan
This patch series includes patches to convert sync test to use TAP13
ksft framework. In addition, fix to sync test to differentiate between
unsupported feature and access error when a non-root user runs it.
Updated kfst framework to return counters for sync test to use to print
the final pass or f
On Mon, Jul 24, 2017 at 2:00 PM, John Stultz wrote:
> On Thu, Jun 29, 2017 at 12:01 PM, Todd Kjos wrote:
>> The binder allocator assumes that the thread that
>> called binder_open will never die for the lifetime of
>> that proc. That thread is normally the group_leader,
>> however it may not be.
On Tuesday, July 18, 2017 02:01:42 PM sean.w...@mediatek.com wrote:
> From: Sean Wang
>
> Changes since v4:
> - add back the missing Acked-by from v3
>
> Changes since v3:
> - remove the redundant line depends on ARM || ARM64 || COMPILE_TEST
> since the whole Kconfig.arm file depends on ARM || A
On Mon, Jul 24, 2017 at 10:41:12AM -0400, Alan Stern wrote:
> On Mon, 24 Jul 2017, Zdenek Kabelac wrote:
>
> > Hi
> >
> > I've problem with my USB storage devices: WD Elements 1TB.
> > (Bus 004 Device 002: ID 1058:10a8 Western Digital Technologies, Inc.
> > Elements
> > Portable (WDBUZG))
> >
From: Edward Cree
Date: Fri, 21 Jul 2017 14:35:17 +0100
> I managed to come up with a test for the swapped bounds in BPF_SUB, so here
> it is along with a patch that fixes it, separated out from my 'rewrite
> everything' series so it can go to -stable.
Series applied and queued up for -stable,
On Monday, July 17, 2017 05:19:25 PM Florian Fainelli wrote:
> Have the core suspend/resume framework store the system-wide suspend
> state (suspend_state_t) we are about to enter, and expose it to drivers
> via pm_suspend_target_state in order to retrieve that. The state is
> assigned in suspend_d
On 07/21/2017 12:27 PM, Markus Mayer wrote:
> From: Markus Mayer
>
> This series adds the brcmstb AVS TMON driver.
>
> The driver was originally written by Brian Norris.
>
> v1 of this series can be found at https://lkml.org/lkml/2017/6/5/921
Rui, Eduardo, I can take patches 3 and 4 through th
On Thu, Jun 29, 2017 at 12:01 PM, Todd Kjos wrote:
> The binder allocator assumes that the thread that
> called binder_open will never die for the lifetime of
> that proc. That thread is normally the group_leader,
> however it may not be. Use the group_leader instead
> of current.
>
> Signed-off-b
AC97 is a bus for sound usage. It enables for a AC97 AC-Link to link one
controller to 0 to 4 AC97 codecs.
The goal of this new implementation is to implement a device/driver
model for AC97, with an automatic scan of the bus and automatic
discovery of AC97 codec devices.
Signed-off-by: Robert Jar
Add the new ac97 bus support, with ac97 bus automatic probing.
Signed-off-by: Robert Jarzmik
Acked-by: Charles Keepax
---
sound/Kconfig | 2 ++
sound/Makefile | 1 +
2 files changed, 3 insertions(+)
diff --git a/sound/Kconfig b/sound/Kconfig
index ee2e69a9ecd1..141b145c4195 100644
--- a/sound
Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.
Signed-off-by: Robert Jarzmik
Acked-by: Charles Keepax
---
sound/soc/codecs/Kconfig | 3 ++-
sound/soc/codecs/wm9705.c | 35 +++
2 files changed, 25 insertions(+), 1
wm97xx-core does several things in it initialization :
- touchscreen input device setup
- battery device creation
As the wm97xx is actually a multi-function device handling an audio
codec, a touchscreen, a gpio block and an ADC, reshape the probing to
isolate what is truly input/touchscreen spec
Split out from the ac97_codec.h the ac97 generic registers, which can be
used by a codec, typically a generic ac97 codec, and by the ac97 bus, to
scan an ac97 AC-Link.
This split encompasses all the AC97 standard registers, but not the
codec specific ones.
In order to have a clean split between f
All pxa library functions don't use the input parameters for nothing but
slot number. This simplifies their prototypes, and makes them usable by
both the legacy ac97 bus and the new ac97 bus.
Signed-off-by: Robert Jarzmik
---
include/sound/pxa2xx-lib.h | 15 +--
sound/arm/pxa2xx-ac9
Switch to the new ac97 bus support in sound/ac97 instead of the legacy
snd_ac97 one.
Signed-off-by: Robert Jarzmik
---
Since v1: split into 2 patches, the former being XXX ac97 codec agnostic
Since v2: fix driver unregistration
Since v3: added platform driver data for controller removal
---
soun
Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.
Signed-off-by: Robert Jarzmik
---
sound/soc/codecs/Kconfig | 3 ++-
sound/soc/codecs/wm9712.c | 37 -
2 files changed, 26 insertions(+), 14 deletions(-)
diff --g
This adds support for the new AC97 bus code, which discovers the devices
rather than uses platform data.
As part of this discovery, it enables a multi-function device wm97xx,
which supports touchscreen, battery, ADC and an audio codec. This patch
adds the code to bind the touchscreen "cell" as the
Add a private data structure. This is a preparation for a codec which
would need an another data on top of snd_ac97, which will be the case
when an MFD wm97xx device will probe wm9705.
Signed-off-by: Robert Jarzmik
Acked-by: Charles Keepax
---
sound/soc/codecs/wm9705.c | 36
Add support for the new ac97 bus model, where devices are automatically
discovered on AC-Links.
Signed-off-by: Robert Jarzmik
---
sound/soc/codecs/Kconfig | 3 ++-
sound/soc/codecs/wm9713.c | 39 +++
2 files changed, 29 insertions(+), 13 deletions(-)
diff -
The WM9705, WM9712 and WM9713 are highly integrated codecs, with an
audio codec, DAC and ADC, GPIO unit and a touchscreen interface.
Historically the support was spread across drivers/input/touchscreen and
sound/soc/codecs. The sharing was done through ac97 bus sharing. This
model will not withsta
Hi Lars, Mark, Charles, Lee,
This is a minor revision after v3, mainly reviews from Takashi, Charles.
I did more extensive testing of load/unload of the whole serie, and apart from a
bug in wm97xx-core in touchscreen tree (for a which a patch will be sent apart),
it seems to work properly. I extr
From:
Date: Sat, 22 Jul 2017 20:45:55 +0800
> From: Sean Wang
>
> Potential dangerous invalid memory might be accessed if invalid mac value
> reflected from the forward port field in rxd4 caused by possible potential
> hardware defects. So added a simple sanity checker to avoid the kind of
> si
From: Rob Herring
Date: Wed, 19 Jul 2017 10:09:13 -0500
> On Tue, Jul 18, 2017 at 4:51 PM, David Miller wrote:
>> From: Rob Herring
>> Date: Tue, 18 Jul 2017 16:43:19 -0500
>>
>>> Now that we have a custom printf format specifier, convert users of
>>> full_name to use %pOF instead. This is prep
On Friday, July 21, 2017 03:09:29 PM Hoan Tran wrote:
> When PCCT is not available, kernel crashes as below when requests PCC
> channel 0. This patch fixes this issue.
>
> [0.920454] PCCT header not found.
> ...
> [8.031309] Unable to handle kernel NULL pointer dereference at virtual
> ad
From: Jason Wang
Date: Wed, 19 Jul 2017 16:54:44 +0800
> Hi:
>
> This series brings two optimizations for virtio-net XDP:
>
> - avoid reset during XDP set
> - turn off offloads on demand
>
> Changes from V1:
> - Various tweaks on commit logs and comments
> - Use virtnet_napi_enable() when enab
On Friday, July 21, 2017 04:51:24 PM Ross Zwisler wrote:
> To save someone the time of searching the ACPI spec for "Static Resource
> Affinity Table".
>
> Signed-off-by: Ross Zwisler
> ---
> drivers/acpi/numa.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acp
unsubscribe linux-kernel
> On Jul 23, 2017, at 10:05 AM, Florian Fainelli wrote:
>> +
>> +strncpy(drvinfo->version, HNAE_DRIVER_VERSION,
>> +sizeof(drvinfo->version));
>> +drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';
>
> strlcpy() would probably do that for you.
You need to be careful abou
From: Egil Hjelmeland
Date: Mon, 24 Jul 2017 16:47:51 +0200
> This is my first patches submitted to the kernel, so I am looking
> forward to comments.
Please clean up how the dates are handled in your submission.
They are all over the place, over a period of 3 days.
Instead, they should be con
Hi!
> > On thinkpad x220, USB mouse stopped working in v4.13-rc2. v4.12 was
> > ok, iirc.
> >
> > Now, USB mouse is so common hw that I may have something wrong in my
> > config...? But I did not change anything there.
>
> Well, your particular USB mouse requires an always-poll quirk, so it's no
On Fri, Jul 21, 2017 at 06:06:39AM +0200, linux-kernel-...@beckhoff.com wrote:
> From: Patrick Bruenn
>
> - add vendor prefix bhf for Beckhoff
> - add new board binding bhf,cx9020
>
> Signed-off-by: Patrick Bruenn
> ---
> Documentation/devicetree/bindings/arm/bhf.txt | 6 ++
> Docu
On Fri, Jul 21, 2017 at 11:57:12AM +0800, sean.w...@mediatek.com wrote:
> From: Sean Wang
>
> Update the binding document for enabling SCPSYS on MediaTek MT7622 SoC.
>
> Signed-off-by: Sean Wang
> Signed-off-by: Chen Zhong
> ---
> Documentation/devicetree/bindings/soc/mediatek/scpsys.txt | 3
On Fri, Jul 21, 2017 at 10:34:49AM +0800, honghui.zh...@mediatek.com wrote:
> From: Ryder Lee
>
> Add support for MediaTek new generation controller and update related
> properities.
>
> Signed-off-by: Ryder Lee
> Signed-off-by: Honghui Zhang
> ---
> .../devicetree/bindings/pci/mediatek-pcie.
Hi Chunyu,
Thanks for the patch. I'm currently traveling, and will have little
time to test it. Hopefully I can get to it sometime this week.
-- Steve
On Mon, 24 Jul 2017 15:21:06 +0800
Chunyu Hu wrote:
> per_cpu trace directories and files are created for all possible cpus,
> but only the c
On 22/07/17 02:12, Stefano Stabellini wrote:
> Also add pvcalls-front to the Makefile.
>
> Signed-off-by: Stefano Stabellini
> CC: boris.ostrov...@oracle.com
> CC: jgr...@suse.com
> ---
> drivers/xen/Kconfig | 9 +
> drivers/xen/Makefile | 1 +
> 2 files changed, 10 insertions(+)
>
> d
On 22/07/17 02:12, Stefano Stabellini wrote:
> Implement pvcalls frontend removal function. Go through the list of
> active and passive sockets and free them all, one at a time.
>
> Signed-off-by: Stefano Stabellini
> CC: boris.ostrov...@oracle.com
> CC: jgr...@suse.com
Reviewed-by: Juergen Gros
On 22/07/17 02:12, Stefano Stabellini wrote:
> Send PVCALLS_RELEASE to the backend and wait for a reply. Take both
> in_mutex and out_mutex to avoid concurrent accesses. Then, free the
> socket.
>
> Signed-off-by: Stefano Stabellini
> CC: boris.ostrov...@oracle.com
> CC: jgr...@suse.com
> ---
>
On Mon, Jul 17, 2017 at 03:26:02PM -0400, Tejun Heo wrote:
> > This patch changes the allocator to only mark allocated pages for the
> > region the population bitmap is used for. Prior, the bitmap was marked
> > completely used as the first chunk was allocated and immutable. This is
> > misleading
Original Lustre ea_inode feature did not have ref counts on xattr inodes
because there was always one parent that referenced it. New
implementation expects ref count to be initialized which is not true for
Lustre case. Handle this by detecting Lustre created xattr inode and set
its ref count to 1.
On 22/07/17 02:12, Stefano Stabellini wrote:
> For active sockets, check the indexes and use the inflight_conn_req
> waitqueue to wait.
>
> For passive sockets, send PVCALLS_POLL to the backend. Use the
> inflight_accept_req waitqueue if an accept is outstanding. Otherwise use
> the inflight_req w
On #UD, x86_emulate_instruction() fetches the data from guest memory and
decodes the instruction bytes to assist further. When SEV is enabled, the
instruction bytes will be encrypted using the guest-specific key, hypervisor
will no longer able to fetch the instruction bytes to assist UD handling.
B
On AMD platform, under certain conditions insn_len may be zero on #NPF.
This can happen if guest gets a page-fault on data access, but HW table
walker is not able to read the instruction page (e.g instuction page
is not present in memory).
Typically, when insn_len is zero, x86_emulate_instruction(
The command is used for decrypting a guest memory region for debug
purposes.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 160 +
1 file changed, 160 insertions(+)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 21f85e1..933
The command copies a plain text into guest memory and encrypts it using
the VM encryption key. The command will be used for debug purposes
(e.g setting breakpoint through gdbserver)
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 174 +
1
The SEV memory encryption engine uses a tweak such that two identical
plaintexts at different location will have a different ciphertexts.
So swapping or moving ciphertexts of two pages will not result in
plaintexts being swapped. Relocating (or migrating) a physical backing
pages for SEV guest will
Extend kvm_x86_ops to add memory_encyption_enabled() ops. It returns a
boolean indicating whether memory encryption is enabled on the VCPU.
Signed-off-by: Brijesh Singh
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/svm.c | 8
2 files changed, 9 insertions(+)
diff
When SEV is active, on #NPF the page fault address will contain C-bit.
We must clear the C-bit before handling the fault.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 0bbd050.
The command is used to retrieve the measurement of memory encrypted
through the LAUNCH_UPDATE_DATA command. This measurement can be used
for attestation purposes.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 52
1 file changed, 52 ins
The command is used for querying the SEV guest status.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 38 ++
1 file changed, 38 insertions(+)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 7a77197..21f85e1 100644
--- a/arch/x86/kvm/svm.c
++
The command is used for finializing the SEV guest launch process.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 23 +++
1 file changed, 23 insertions(+)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 9b672eb..7a77197 100644
--- a/arch/x86/kvm/svm.c
+++ b/
Hi Tejun,
On Mon, Jul 17, 2017 at 03:10:09PM -0400, Tejun Heo wrote:
> > /*
> > +* Initialize first chunk.
> > +* pcpu_first_chunk will always manage the dynamic region of the
> > +* first chunk. The static region is dropped as those addresses
>
> Would "not covered by any chunk
On Mon, 24 Jul 2017, Pavel Machek wrote:
> On thinkpad x220, USB mouse stopped working in v4.13-rc2. v4.12 was
> ok, iirc.
>
> Now, USB mouse is so common hw that I may have something wrong in my
> config...? But I did not change anything there.
Well, your particular USB mouse requires an always
The command is used to bootstrap SEV guest from unencrypted boot images.
The command creates a new VM encryption key (VEK) using the guest owner's
policy, public DH certificates, and session information.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 165 ++
The command is used for encrypting the guest memory region using the VM
encryption key (VEK) created during LAUNCH_START.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 165 +
1 file changed, 165 insertions(+)
diff --git a/arch/x86/kvm/
The command initializes the SEV firmware and allocate a new ASID for
this guest from SEV ASID pool. The firmware must be initialized before
we issue guest launch command to create a new encryption context.
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/svm.c | 188
SEV hardware uses ASIDs to associate memory encryption key with the
guest VMs. During the guest creation time, we use SEV_CMD_ACTIVATE
command to bind a particular ASID to the guest. Lets make sure that
VMCB is programmed with the binded ASID before a VMRUN.
Signed-off-by: Brijesh Singh
---
arch
The patch adds a new member (sev_info) in 'struct kvm_arch', and
setter/getter functions for the sev_info field.
Signed-off-by: Brijesh Singh
---
arch/x86/include/asm/kvm_host.h | 9 +
arch/x86/kvm/svm.c | 45 +
2 files changed, 54 in
Define Secure Encrypted Virtualization (SEV) key management command id
and structure. The command definition is available in SEV KM [1] spec
0.14 and Documentation/virtual/kvm/amd-memory-encryption.txt
[1] http://support.amd.com/TechDocs/55766_SEV-KM API_Specification.pdf
Signed-off-by: Brijesh S
Hi Tejun,
On Mon, Jul 17, 2017 at 12:46:50PM -0400, Tejun Heo wrote:
> Heh, that was pretty difficult to parse, but here's my question. So,
> we're expanding reserved area so that its end aligns to page boundary
> which is completely fine. We may end up with reserved area which is a
> bit larg
Hi!
On Mon 2017-07-24 15:27:18, Theodore Ts'o wrote:
> On Mon, Jul 24, 2017 at 09:15:48PM +0200, Pavel Machek wrote:
> > >
> > > Am 24.07.2017 um 20:57 schrieb Pavel Machek:
> > > >Would it be feasible to run bcache (write-through) with existing ext4
> > > >filesystem?
> > > >
> > > >I have 400GB
If hardware support memory encryption then KVM_MEMORY_REGISTER_RAM and
KVM_MEMORY_UNREGISTER_RAM ioctl's can be used by userspace to register/
unregister the guest memory regions which may contains the encrypted
data (e.g guest RAM, PCI BAR, SMRAM etc).
Signed-off-by: Brijesh Singh
---
arch/x86/
This CPUID provides the memory encryption support information on
AMD Platform. The complete description for CPUID leaf is available
in APM volume 2, Section 15.34
Signed-off-by: Brijesh Singh
---
arch/x86/kvm/cpuid.c | 2 +-
arch/x86/kvm/svm.c | 6 ++
2 files changed, 7 insertions(+), 1 de
From: Tom Lendacky
Define the SEV enable bit for the VMCB control structure. The hypervisor
will use this bit to enable SEV in the guest.
Signed-off-by: Tom Lendacky
Signed-off-by: Brijesh Singh
---
arch/x86/include/asm/svm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/includ
If hardware supports encrypting then KVM_MEMORY_ENCRYPT_OP ioctl can
be used by qemu to issue platform specific memory encryption commands.
Signed-off-by: Brijesh Singh
Reviewed-by: Paolo Bonzini
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c | 12
inc
In current implementation, asid allocation starts from 1, this patch
adds a min_asid variable in svm_vcpu structure to allow starting asid
from something other than 1.
Signed-off-by: Brijesh Singh
Reviewed-by: Paolo Bonzini
---
arch/x86/kvm/svm.c | 4 +++-
1 file changed, 3 insertions(+), 1 del
From: Tom Lendacky
Currently the nested_ctl variable in the vmcb_control_area structure is
used to indicate nested paging support. The nested paging support field
is actually defined as bit 0 of the field. In order to support a new
feature flag the usage of the nested_ctl and nested paging suppor
AMDs new Secure Encrypted Virtualization (SEV) feature allows the memory
contents of a virtual machine to be transparently encrypted with a key
unique to the guest VM. The programming and management of the encryption
keys are handled by the AMD Secure Processor (AMD-SP), which exposes the
commands
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