Hi,
On 1/27/23 4:37 PM, Srivatsa S. Bhat wrote:
> From: "Srivatsa S. Bhat (VMware)"
>
> The comment that says mwait_play_dead() returns only on failure is a
> bit misleading because mwait_play_dead() could actually return for
> valid reasons (such as mwait not being
gt;
> As the first parameter of the old callbacks isn't used, drop it from
> the replacement one.
>
> Signed-off-by: Juergen Gross
> Reviewed-by: Boris Ostrovsky
Reviewed-by: Srivatsa S. Bhat (VMware)
Regards,
Srivatsa
VMware Photon OS
> ---
> V2:
> - expan
From: "Srivatsa S. Bhat (VMware)"
The comment that says mwait_play_dead() returns only on failure is a
bit misleading because mwait_play_dead() could actually return for
valid reasons (such as mwait not being supported by the platform) that
do not indicate a failure of the CPU offline
Hi Igor and Sean,
On 1/20/23 10:35 AM, Sean Christopherson wrote:
> On Fri, Jan 20, 2023, Igor Mammedov wrote:
>> On Fri, 20 Jan 2023 05:55:11 -0800
>> "Srivatsa S. Bhat" wrote:
>>
>>> Hi Igor and Thomas,
>>>
>>> Thank you for your
Hi Igor and Thomas,
Thank you for your review!
On 1/19/23 1:12 PM, Thomas Gleixner wrote:
> On Mon, Jan 16 2023 at 15:55, Igor Mammedov wrote:
>> "Srivatsa S. Bhat" wrote:
>>> Fix this by preventing the use of mwait idle state in the vCPU offline
>>> play
On 1/15/23 10:43 PM, Juergen Gross wrote:
> On 16.01.23 05:27, Srivatsa S. Bhat wrote:
>>
>> Hi Juergen,
>>
>> On 1/12/23 7:21 AM, Juergen Gross wrote:
>>> The two paravirt callbacks .mmu.activate_mm and .mmu.dup_mmap are
>>> sharing the same impleme
From: "Srivatsa S. Bhat (VMware)"
Under hypervisors that support mwait passthrough, a vCPU in mwait
CPU-idle state remains in guest context (instead of yielding to the
hypervisor via VMEXIT), which helps speed up wakeups from idle.
However, this runs into problems with CPU hotplug, b
Hi Juergen,
On 1/12/23 7:21 AM, Juergen Gross wrote:
> The two paravirt callbacks .mmu.activate_mm and .mmu.dup_mmap are
> sharing the same implementations in all cases: for Xen PV guests they
> are pinning the PGD of the new mm_struct, and for all other cases
> they are a NOP.
>
I was expecti
arning: objtool: xen_safe_halt+0xa: call to
> HYPERVISOR_sched_op.constprop.0() leaves .noinstr.text section
>
> Signed-off-by: Peter Zijlstra (Intel)
Reviewed-by: Srivatsa S. Bhat (VMware)
Regards,
Srivatsa
VMware Photon OS
> ---
> arch/x86/include/asm/paravirt.h |6
On 8/7/18 12:15 PM, Greg KH wrote:
> On Tue, Aug 07, 2018 at 12:08:07PM -0700, Srivatsa S. Bhat wrote:
>> Also, upstream commit e01e80634ecdde1 (fork: unconditionally clear
>> stack on fork) applies cleanly on 4.14 stable, so it would be great to
>> cherry-pick it to 4.14 st
On 8/7/18 6:49 AM, Greg KH wrote:
> On Fri, Aug 03, 2018 at 04:20:31PM -0700, Srivatsa S. Bhat wrote:
>> On 8/2/18 3:22 PM, Kees Cook wrote:
>>> On Thu, Aug 2, 2018 at 12:22 PM, Srivatsa S. Bhat
>>> wrote:
>>>> On 7/26/18 4:09 PM, Kees Cook wrote:
>
On 8/2/18 3:22 PM, Kees Cook wrote:
> On Thu, Aug 2, 2018 at 12:22 PM, Srivatsa S. Bhat
> wrote:
>> On 7/26/18 4:09 PM, Kees Cook wrote:
>>> On Tue, Jul 24, 2018 at 3:02 PM, Jiri Kosina wrote:
>>>> On Tue, 24 Jul 2018, Srivatsa S. Bhat wrote:
>>>>
&
On 7/26/18 4:09 PM, Kees Cook wrote:
> On Tue, Jul 24, 2018 at 3:02 PM, Jiri Kosina wrote:
>> On Tue, 24 Jul 2018, Srivatsa S. Bhat wrote:
>>
>>> However, if you are proposing that you'd like to contribute the enhanced
>>> PTI/Spectre (upstream) patches fro
On 7/23/18 3:06 PM, Jiri Kosina wrote:
> On Sat, 14 Jul 2018, Srivatsa S. Bhat wrote:
>
>> This patch series is a backport of the Spectre-v2 fixes (IBPB/IBRS)
>> and patches for the Speculative Store Bypass vulnerability to 4.4.y
>> (they apply cleanly on top of 4.4.140
On 7/23/18 4:26 AM, Greg KH wrote:
> On Sat, Jul 14, 2018 at 02:25:43AM -0700, Srivatsa S. Bhat wrote:
>> Hi Greg,
>>
>> This patch series is a backport of the Spectre-v2 fixes (IBPB/IBRS)
>> and patches for the Speculative Store Bypass vulnerability to 4.4.y
>&
On 7/15/18 4:26 AM, Greg KH wrote:
> On Sat, Jul 14, 2018 at 02:25:43AM -0700, Srivatsa S. Bhat wrote:
>> Hi Greg,
>>
>> This patch series is a backport of the Spectre-v2 fixes (IBPB/IBRS)
>> and patches for the Speculative Store Bypass vulnerability to 4.4.y
>&
: Juergen Gross
Signed-off-by: Thomas Gleixner
Reviewed-by: Jan Beulich
Cc: sta...@vger.kernel.org
Cc: xen-devel@lists.xenproject.org
Cc: boris.ostrov...@oracle.com
Link: https://lkml.kernel.org/r/20180226140818.4849-1-jgr...@suse.com
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Srivatsa S. Bhat
Hi Greg,
This patch series is a backport of the Spectre-v2 fixes (IBPB/IBRS)
and patches for the Speculative Store Bypass vulnerability to 4.4.y
(they apply cleanly on top of 4.4.140).
I used 4.9.y as my reference when backporting to 4.4.y (as I thought
that would minimize the amount of fixing up
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