linux-kernel - [PATCH 0/2] AER-KVM: Error containment of VFIO devices assigned to KVM guests

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Message-ID: <F9E001219150CB45BEDC82A650F360C90149602A@G9W0717.americas.hpqcorp.net>
Date:	Wed, 9 Jan 2013 06:26:09 +0000
From:	"Pandarathil, Vijaymohan R" <vijaymohan.pandarathil@...com>
To:	Alex Williamson <alex.williamson@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Gleb Natapov <gleb@...hat.com>
CC:	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"qemu-devel@...gnu.org" <qemu-devel@...gnu.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/2] AER-KVM: Error containment of VFIO devices assigned to
 KVM guests

Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the AER
root port driver, the error handler registered by the vfio-pci driver gets
invoked. The qemu process is signaled through an eventfd registered per
VFIO device by the qemu process. In the eventfd handler, qemu decides on
what action to take. In this implementation, guest is brought down to
contain the error.

---
Vijay Mohan Pandarathil(2):

[PATCH 1/2] VFIO-AER: Vfio-pci driver changes for supporting AER
[PATCH 2/2] QEMU-AER: Qemu changes to support AER for VFIO-PCI devices

Kernel files changed

 drivers/vfio/pci/vfio_pci.c         | 29 +++++++++++++++++++++++++++++
 drivers/vfio/pci/vfio_pci_private.h |  1 +
 drivers/vfio/vfio.c                 |  8 ++++++++
 include/linux/vfio.h                |  1 +
 include/uapi/linux/vfio.h           |  9 +++++++++
 5 files changed, 48 insertions(+)

Qemu files changed

 hw/vfio_pci.c              | 56 ++++++++++++++++++++++++++++++++++++++++++++++
 linux-headers/linux/vfio.h |  9 ++++++++
 2 files changed, 65 insertions(+)
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