linux-kernel - [PATCH v3 0/2] misc: vcpu_stall

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Message-ID: <20240703153732.3214238-1-sebastianene@google.com>
Date: Wed,  3 Jul 2024 15:37:30 +0000
From: Sebastian Ene <sebastianene@...gle.com>
To: arnd@...db.de, gregkh@...uxfoundation.org, will@...nel.org, maz@...nel.org, 
	Rob Herring <robh+dt@...nel.org>, Dragan Cvetic <dragan.cvetic@...inx.com>, 
	Guenter Roeck <linux@...ck-us.net>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
	kernel-team@...roid.com, Sebastian Ene <sebastianene@...gle.com>
Subject: [PATCH v3 0/2] misc: vcpu_stall_detector: Add a PPI interrupt

Hello,

I am re-spinning the patches as last time I accidentally sent v2 twice
without bumping the version.

This is a small update of the previously introduced vcpu stall detector
which adds an interrupt to the virtual device to notify the guest VM in
case it stalls. This lets the guest VM to handle the reboot and to
panic in case it expires. 

Changelog:

v2 -> current:
* fixed the build error reported by the Intel robot
  (https://lore.kernel.org/all/202406132132.FBKSWFav-lkp@intel.com/)
* v2 was sent mistakenly on the list without bumping the version to v3. v3
  should be the correct version of this patch.

v1 -> v2:
* 1/2 : collected the Ack from Conor Dooley, thank you Conor !
* 2/2 : applied the feedback received from Conor and used
	platform_get_irq_optional. Removed the error messages during
	probe

Link to v2:
https://lore.kernel.org/all/20240611110136.2003137-2-sebastianene@google.com/

Link to v1:
https://lore.kernel.org/all/20240523160413.868830-1-sebastianene@google.com/

Thanks, 

Sebastian Ene (2):
  dt-bindings: vcpu_stall_detector: Add a PPI interrupt to the virtual
    device
  misc: Register a PPI for the vcpu stall detection virtual device

 .../misc/qemu,vcpu-stall-detector.yaml        |  6 ++++
 drivers/misc/vcpu_stall_detector.c            | 31 +++++++++++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

-- 
2.45.2.803.g4e1b14247a-goog