Alex Williamson
8b27ee60bf
vfio-pci: PCI hot reset interface ...
The current VFIO_DEVICE_RESET interface only maps to PCI use cases
where we can isolate the reset to the individual PCI function. This
means the device must support FLR (PCIe or AF), PM reset on D3hot->D0
transition, device specific reset, or be a singleton device on a bus
for a secondary bus reset. FLR does not have widespread support,
PM reset is not very reliable, and bus topology is dictated by the
system and device design. We need to provide a means for a user to
induce a bus reset in cases where the existing mechanisms are not
available or not reliable.
This device specific extension to VFIO provides the user with this
ability. Two new ioctls are introduced:
- VFIO_DEVICE_PCI_GET_HOT_RESET_INFO
- VFIO_DEVICE_PCI_HOT_RESET
The first provides the user with information about the extent of
devices affected by a hot reset. This is essentially a list of
devices and the IOMMU groups they belong to. The user may then
initiate a hot reset by calling the second ioctl. We must be
careful that the user has ownership of all the affected devices
found via the first ioctl, so the second ioctl takes a list of file
descriptors for the VFIO groups affected by the reset. Each group
must have IOMMU protection established for the ioctl to succeed.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-09-04 11:28:04 -06:00
Big part of this is the addition of compression to the
2013-09-03 21:14:06 -07:00
Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2013-09-03 18:19:53 -07:00
ACPI and power management updates for 3.12-rc1
2013-09-03 15:59:39 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
drivers/bus: arm-cci: avoid parsing DT for cpu device nodes
2013-08-21 10:29:53 +01:00
ACPI and power management updates for 3.12-rc1
2013-09-03 15:59:39 -07:00
clk: exynos4: Add CLK_GET_RATE_NOCACHE flag for the Exynos4x12 ISP clocks
2013-08-13 10:01:56 -07:00
Merge branch 'timers/clockevents-next' of git://git.linaro.org/people/dlezcano/clockevents into timers/core
2013-08-21 14:59:23 +02:00
ACPI and power management updates for 3.12-rc1
2013-09-03 15:59:39 -07:00
cpuidle: coupled: fix race condition between pokes and safe state
2013-08-29 22:15:34 +02:00
devfreq: convert devfreq_class to use dev_groups
2013-08-19 21:22:34 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
Big part of this is the addition of compression to the
2013-09-03 21:14:06 -07:00
FMC: Staticize local symbols
2013-08-12 15:45:40 -07:00
drm/vmwgfx: Split GMR2_REMAP commands if they are to large
2013-08-30 09:03:39 +10:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
Drivers: hv: vmbus: Do not attempt to negoatiate a new version prematurely
2013-08-30 12:08:04 -07:00
New driver for HTU21D (humidity sensor)
2013-09-03 10:43:35 -07:00
staging tree merge for 3.12-rc1
2013-09-03 11:37:57 -07:00
[SCSI] IB/iser: Add Discovery support
2013-08-26 18:53:49 +04:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
irqchip: sirf: move from legacy mode to linear irqdomain
2013-08-29 09:48:32 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
SCSI misc on 20130903
2013-09-03 15:48:06 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
PCI changes for the v3.12 merge window:
2013-09-03 16:24:35 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
PCI changes for the v3.12 merge window:
2013-09-03 16:24:35 -07:00
ACPI and power management updates for 3.12-rc1
2013-09-03 15:59:39 -07:00
PCI changes for the v3.12 merge window:
2013-09-03 16:24:35 -07:00
drivers: parport: Kconfig: exclude h8300 for PARPORT_PC
2013-08-30 12:08:04 -07:00
PCI changes for the v3.12 merge window:
2013-09-03 16:24:35 -07:00
ACPI and power management updates for 3.12-rc1
2013-09-03 15:59:39 -07:00
Merge branch 'pnp'
2013-08-27 01:41:35 +02:00
PPS: convert class code to use dev_groups
2013-08-19 21:22:34 -07:00
pwm: pxa: Use module_platform_driver
2013-09-03 13:09:17 +02:00
Merge remote-tracking branch 'regulator/topic/tps65912' into regulator-next
2013-09-01 13:50:23 +01:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
SCSI misc on 20130903
2013-09-03 15:48:06 -07:00
Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2013-09-03 18:19:53 -07:00
Merge remote-tracking branch 'spi/topic/txx9' into spi-next
2013-09-01 13:49:18 +01:00
TTY/Serial driver patches for 3.12-rc1
2013-09-03 11:38:36 -07:00
target: Fix se_cmd->state_list leak regression during WRITE failure
2013-08-31 15:19:12 -07:00
TTY/Serial driver patches for 3.12-rc1
2013-09-03 11:38:36 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
Driver core patches for 3.12-rc1
2013-09-03 11:37:15 -07:00
uwb: Staticize local symbols
2013-08-19 17:08:16 -07:00
vfio-pci: PCI hot reset interface
2013-09-04 11:28:04 -06:00
Merge branch 'x86-fb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-09-04 09:12:17 -07:00
vme: vme_ca91cx42.c: fix to pass correct device identity to free_irq()
2013-08-27 21:49:26 -07:00
w1: slaves: w1_ds2781: convert to use w1_family_ops.groups
2013-08-22 11:05:44 -07:00
Merge branch 'acpi-sleep'
2013-08-27 01:28:38 +02:00
8b27ee60bf