On Sat, 2013-03-09 at 01:52 -0600, Vijay Mohan Pandarathil wrote: > 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. > > > v7: > - Rebased to latest upstream > - Used device_lock() for synchronising err_trigger access > v6: > - Rebased to latest upstream > - Resolved merge conflict with vfio_dev_present() > v5: > - Rebased to latest upstream stable bits > - Incorporated v4 feedback > v4: > - Stop the guest instead of terminating > - Remove unwanted returns from functions > - Incorporate other feedback > v3: > - Removed PCI_AER* flags from device info ioctl. > - Incorporated feedback > v2: > - Rebased to latest upstream stable bits > - Changed the new ioctl to be part of VFIO_SET_IRQs ioctl > - Added a new patch to get/put reference to a vfio device from struct device > - Incorporated all other feedback. > > --- > > Vijay Mohan Pandarathil(3): > > [PATCH 1/3] VFIO: Wrapper to get reference to vfio_device from device > [PATCH 2/3] VFIO-AER: Vfio-pci driver changes for supporting AER > [PATCH 3/3] QEMU-AER: Qemu changes to support AER for VFIO-PCI devices > > Kernel files changed > > drivers/vfio/vfio.c | 30 +++++++++++++++++++++++++++++- > include/linux/vfio.h | 3 +++ > 2 files changed, 32 insertions(+), 1 deletion(-) > > drivers/vfio/pci/vfio_pci.c | 44 ++++++++++++++++++++++++- > drivers/vfio/pci/vfio_pci_intrs.c | 64 +++++++++++++++++++++++++++++++++++++ > drivers/vfio/pci/vfio_pci_private.h | 1 + > include/uapi/linux/vfio.h | 1 + > 4 files changed, 109 insertions(+), 1 deletion(-) Applied 1 & 2 to my next tree, patch 3 is qemu and depends on the vfio.h change getting into mainline so will need to be re-sent once that happens. Thanks, Alex > Qemu files changed > > hw/vfio_pci.c | 123 +++++++++++++++++++++++++++++++++++++++++++++ > linux-headers/linux/vfio.h | 1 + > 2 files changed, 124 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
