linux_dsm_epyc7002/drivers
Deepa Dinamani 6c3a44ed3c iommu/vt-d: Turn off translations at shutdown
The intel-iommu driver assumes that the iommu state is
cleaned up at the start of the new kernel.
But, when we try to kexec boot something other than the
Linux kernel, the cleanup cannot be relied upon.
Hence, cleanup before we go down for reboot.

Keeping the cleanup at initialization also, in case BIOS
leaves the IOMMU enabled.

I considered turning off iommu only during kexec reboot, but a clean
shutdown seems always a good idea. But if someone wants to make it
conditional, such as VMM live update, we can do that.  There doesn't
seem to be such a condition at this time.

Tested that before, the info message
'DMAR: Translation was enabled for <iommu> but we are not in kdump mode'
would be reported for each iommu. The message will not appear when the
DMA-remapping is not enabled on entry to the kernel.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-11-11 16:07:13 +01:00
..
accessibility
acpi Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
amba ARM updates for 5.4-rc1: 2019-09-22 09:39:09 -07:00
android binder: Fix comment headers on binder_alloc_prepare_to_free() 2019-10-10 14:39:23 +02:00
ata Revert "libata, freezer: avoid block device removal while system is frozen" 2019-10-06 09:11:37 -06:00
atm atm: he: clean up an indentation issue 2019-09-25 13:54:45 +02:00
auxdisplay It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
base driver core: platform: Add platform_get_irq_byname_optional() 2019-10-07 12:52:44 +02:00
bcma bcma: make arrays pwr_info_offset and sprom_sizes static const, shrinks object size 2019-09-13 16:44:49 +03:00
block for-linus-20191010 2019-10-11 08:45:32 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
bus ARM: SoC fixes 2019-09-30 10:04:28 -07:00
cdrom
char char/random: Add a newline at the end of the file 2019-10-02 13:49:43 -07:00
clk Fixes for omaps for v5.4-rc cycle 2019-10-03 09:15:19 -07:00
clocksource timer-of: don't use conditional expression with mixed 'void' types 2019-10-02 16:16:07 -07:00
connector
counter
cpufreq Power management updates for 5.4-rc1 2019-09-17 19:15:14 -07:00
cpuidle Power management updates for 5.4-rc1 2019-09-17 19:15:14 -07:00
crypto Merge branch 'akpm' (patches from Andrew) 2019-09-24 16:10:23 -07:00
dax
dca
devfreq
dio
dma Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
dma-buf
edac ARM updates for 5.4-rc1: 2019-09-22 09:39:09 -07:00
eisa
extcon chrome platform changes for v5.4 2019-09-19 14:14:28 -07:00
firewire
firmware Char/Misc driver fixes for 5.4-rc3. 2019-10-12 15:47:19 -07:00
fpga Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
fsi
gnss
gpio gpio: max77620: Use correct unit for debounce times 2019-10-04 23:58:10 +02:00
gpu xen: fixes for 5.4-rc3 2019-10-12 14:11:21 -07:00
greybus
hid HID: hyperv: Use in-place iterator API in the channel callback 2019-10-01 14:49:41 -04:00
hsi HSI changes for the 5.4 series 2019-09-22 12:02:21 -07:00
hv Drivers: hv: vmbus: Fix harmless building warnings without CONFIG_PM_SLEEP 2019-10-01 14:49:45 -04:00
hwmon hwmon: (nct7904) Add array fan_alarm and vsen_alarm to store the alarms in nct7904_data struct. 2019-10-02 06:42:48 -07:00
hwspinlock
hwtracing Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
i2c i2c: slave-eeprom: Add read only mode 2019-09-28 20:44:12 +02:00
i3c
ide
idle
iio First set of IIO fixes for the 5.4 cycle. 2019-10-10 11:18:37 +02:00
infiniband RDMA/mlx5: Add missing synchronize_srcu() for MW cases 2019-10-04 15:54:22 -03:00
input chrome platform changes for v5.4 2019-09-19 14:14:28 -07:00
interconnect
iommu iommu/vt-d: Turn off translations at shutdown 2019-11-11 16:07:13 +01:00
ipack
irqchip Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
isdn mISDN: enforce CAP_NET_RAW for raw sockets 2019-09-24 16:37:18 +02:00
leds leds: lm3532: Fix optional led-max-microamp prop error handling 2019-09-12 20:45:52 +02:00
lightnvm lightnvm: print error when target is not found 2019-09-05 13:17:01 -06:00
macintosh
mailbox mailbox: qcom-apcs: fix max_register value 2019-09-17 00:54:29 -05:00
mcb
md for-5.4/post-2019-09-24 2019-09-24 16:31:50 -07:00
media media: stkwebcam: fix runtime PM after driver unbind 2019-10-04 14:38:46 +02:00
memory
memstick ms_block: fix spelling mistake "randomally" -> "randomly" 2019-09-11 16:11:01 +02:00
message
mfd Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 2019-09-29 10:24:23 -07:00
misc misc: fastrpc: prevent memory leak in fastrpc_dma_buf_attach 2019-10-04 18:22:14 +02:00
mmc mmc: host: sdhci-pci: Add Genesys Logic GL975x support 2019-09-27 20:48:20 +02:00
mtd mtd: rawnand: au1550nd: Fix au_read_buf16() prototype 2019-10-07 09:56:36 +02:00
mux
net RDMA subsystem updates for 5.4-rc 2019-10-09 09:46:46 -07:00
nfc NFC: st95hf: clean up indentation issue 2019-09-27 20:31:18 +02:00
ntb NTB: fix IDT Kconfig typos/spellos 2019-09-23 17:20:40 -04:00
nubus
nvdimm libnvdimm fixes v5.4-rc1 2019-09-29 10:33:41 -07:00
nvme Merge branch 'nvme-5.4' of git://git.infradead.org/nvme into for-linus 2019-09-27 13:17:37 -06:00
nvmem Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-28 17:47:33 -07:00
opp
oprofile
parisc dma-mapping updates for 5.4: 2019-09-19 13:27:23 -07:00
parport Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
pci Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
pcmcia Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
perf
phy pci-v5.4-changes 2019-09-23 19:16:01 -07:00
pinctrl This is the bulk of pin control changes for the v5.4 kernel 2019-09-19 14:19:33 -07:00
platform platform-drivers-x86 for v5.4-2 2019-09-24 12:39:40 -07:00
pnp
power power supply and reset changes for the v5.4 series 2019-09-22 12:04:59 -07:00
powercap Power management updates for 5.4-rc1 2019-09-17 19:15:14 -07:00
pps
ps3
ptp ptp_qoriq: Initialize the registers' spinlock before calling ptp_qoriq_settime 2019-10-02 12:20:38 -04:00
pwm pwm: Changes for v5.4-rc1 2019-09-27 12:19:47 -07:00
rapidio
ras
regulator LED updates for 5.4-rc1 2019-09-17 18:40:42 -07:00
remoteproc remoteproc updates for v5.4 2019-09-22 10:55:08 -07:00
reset ARM: SoC fixes 2019-09-30 10:04:28 -07:00
rpmsg rpmsg: glink-smem: Name the edge based on parent remoteproc 2019-09-17 15:33:31 -07:00
rtc RTC for 5.4 2019-09-22 11:05:43 -07:00
s390 s390/cio: fix virtio-ccw DMA without PV 2019-10-10 10:49:46 +02:00
sbus
scsi SCSI fixes on 20191004 2019-10-05 12:53:27 -07:00
sfi
sh
siox
slimbus
soc ARM: SoC driver updates for v5.4 2019-09-16 15:52:38 -07:00
soundwire soundwire updates for v5.4-rc1 2019-09-22 10:52:23 -07:00
spi LED updates for 5.4-rc1 2019-09-17 18:40:42 -07:00
spmi
ssb ssb: make array pwr_info_offset static const, makes object smaller 2019-09-13 17:23:18 +03:00
staging Staging/IIO driver fixes for 5.4-rc3 2019-10-12 15:44:46 -07:00
target mm: introduce page_size() 2019-09-24 15:54:08 -07:00
tc
tee tee/shm: untag user pointers in tee_shm_register 2019-09-25 17:51:41 -07:00
thermal Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal 2019-09-29 10:24:23 -07:00
thunderbolt
tty tty: serial: imx: Use platform_get_irq_optional() for optional IRQs 2019-10-10 13:12:28 +02:00
uio Char/Misc driver patches for 5.4-rc1 2019-09-18 11:14:31 -07:00
usb USB: yurex: fix NULL-derefs on disconnect 2019-10-10 14:24:06 +02:00
vfio vfio/type1: untag user pointers in vaddr_get_pfn 2019-09-25 17:51:41 -07:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
video video/logo: do not generate unneeded logo C files 2019-10-05 15:29:49 +09:00
virt virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr 2019-10-10 14:50:32 +02:00
virtio virtio_ring: fix unmap of indirect descriptors 2019-09-09 10:43:15 -04:00
visorbus
vlynq
vme
w1 w1: ds250x: Fix build error without CRC16 2019-10-10 15:35:41 +02:00
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
xen xen: fixes for 5.4-rc3 2019-10-12 14:11:21 -07:00
zorro
Kconfig Staging/IIO driver patches for 5.4-rc1 2019-09-18 11:05:34 -07:00
Makefile Staging/IIO driver patches for 5.4-rc1 2019-09-18 11:05:34 -07:00