7b4b0e9eda
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. The kernel patches for the above functionality has been already accepted. This is a refresh of the QEMU patch which was reviewed earlier. http://marc.info/?l=linux-kernel&m=136281557608087&w=2 This patch has the same contents and has been built after refreshing to latest upstream and after the linux headers have been updated in qemu. - Create eventfd per vfio device assigned to a guest and register an event handler - This fd is passed to the vfio_pci driver through the SET_IRQ ioctl - When the device encounters an error, the eventfd is signalled and the qemu eventfd handler gets invoked. - In the handler decide what action to take. Current action taken is to stop the guest. Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
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.. | ||
macio | ||
a9scu.c | ||
applesmc.c | ||
arm_l2x0.c | ||
arm_sysctl.c | ||
cbus.c | ||
debugexit.c | ||
eccmemctl.c | ||
exynos4210_pmu.c | ||
imx_ccm.c | ||
ivshmem.c | ||
lm32_sys.c | ||
Makefile.objs | ||
max111x.c | ||
milkymist-hpdmc.c | ||
milkymist-pfpu.c | ||
mst_fpga.c | ||
omap_clk.c | ||
omap_gpmc.c | ||
omap_l4.c | ||
omap_sdrc.c | ||
omap_tap.c | ||
pc-testdev.c | ||
pci-testdev.c | ||
puv3_pm.c | ||
pvpanic.c | ||
pxa2xx_pcmcia.c | ||
sga.c | ||
slavio_misc.c | ||
tmp105.c | ||
tmp105.h | ||
vfio.c | ||
vmport.c | ||
zynq_slcr.c |