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Lu Baolu 4140d77a02 iommu/vt-d: Fix RID2PASID setup/teardown failure 
The IOMMU driver shares the pasid table for PCI alias devices. When the
RID2PASID entry of the shared pasid table has been filled by the first
device, the subsequent device will encounter the "DMAR: Setup RID2PASID
failed" failure as the pasid entry has already been marked as present.
As the result, the IOMMU probing process will be aborted.

On the contrary, when any alias device is hot-removed from the system,
for example, by writing to /sys/bus/pci/devices/.../remove, the shared
RID2PASID will be cleared without any notifications to other devices.
As the result, any DMAs from those rest devices are blocked.

Sharing pasid table among PCI alias devices could save two memory pages
for devices underneath the PCIe-to-PCI bridges. Anyway, considering that
those devices are rare on modern platforms that support VT-d in scalable
mode and the saved memory is negligible, it's reasonable to remove this
part of immature code to make the driver feasible and stable.

Fixes: ef848b7e5a ("iommu/vt-d: Setup pasid entry for RID2PASID support")
Reported-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reported-by: Ethan Zhao <haifeng.zhao@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Ethan Zhao <haifeng.zhao@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220623065720.727849-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20220625133430.2200315-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-07-06 12:59:21 +02:00
..
accessibility Revert "speakup: Generate speakupmap.h automatically" 2022-05-20 21:07:05 +02:00
acpi ACPI: video: Change how we determine if brightness key-presses are handled 2022-06-28 21:53:30 +02:00
amba Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
android fix for breakage in #work.fd this window 2022-06-05 17:14:03 -07:00
ata ata: pata_cs5535: Fix W=1 warnings 2022-06-30 08:21:43 +09:00
atm
auxdisplay
base Minor things, mainly - mailmap updates, MAINTAINERS updates, etc. 2022-06-26 14:00:55 -07:00
bcma
block xen-blkfront: Handle NULL gendisk 2022-06-21 16:36:09 +02:00
bluetooth Bluetooth: btmtksdio: fix the reset takes too long 2022-05-13 13:19:01 +02:00
bus ARM: SoC fixes for 5.19 2022-06-26 14:12:56 -07:00
cdrom cdrom: remove obsolete TODO list 2022-05-15 18:31:28 -06:00
char random: update comment from copy_to_user() -> copy_to_iter() 2022-06-20 11:06:17 +02:00
clk clk: stm32: rcc_reset: Fix missing spin_lock_init() 2022-06-09 15:34:08 -07:00
clocksource clocksource: hyper-v: unexport __init-annotated hv_init_clocksource() 2022-06-08 12:27:08 +00:00
comedi comedi: vmk80xx: fix expression for tx buffer size 2022-06-10 15:21:23 +02:00
connector
counter
cpufreq cpufreq arm fixes for 5.19-rc5 2022-06-28 17:56:57 +02:00
cpuidle Merge branches 'pm-em' and 'pm-cpuidle' 2022-05-23 19:18:51 +02:00
crypto crypto: ccp - Fix device IRQ counting by using platform_irq_count() 2022-06-24 17:09:01 +08:00
cxl cxl/port: Enable HDM Capability after validating DVSEC Ranges 2022-05-20 12:30:53 -07:00
dax dax: add .recovery_write dax_operation 2022-05-16 13:37:59 -07:00
dca
devfreq PM / devfreq: passive: revert an editing accident in SPDX-License line 2022-06-30 05:11:17 +09:00
dio drivers: dio: add missing iounmap() in dio_init() 2022-05-19 18:56:51 +02:00
dma dmaengine updates for v5.19-rc1 2022-05-29 11:38:27 -07:00
dma-buf udmabuf: add back sanity check 2022-06-20 08:38:29 -05:00
edac - A gargen variety of fixes which don't fit any other tip bucket: 2022-05-23 19:32:59 -07:00
eisa
extcon
firewire firewire: convert sysfs sprintf/snprintf family to sysfs_emit 2022-06-17 10:43:20 +02:00
firmware A NULL pointer dereference fix for vc4, and 3 patches to improve the 2022-07-01 09:27:55 +10:00
fpga
fsi
gnss
gpio gpio fixes for v5.19-rc4 2022-06-24 17:01:31 -07:00
gpu A NULL pointer dereference fix for vc4, and 3 patches to improve the 2022-07-01 09:27:55 +10:00
greybus
hid HID: hyperv: Correctly access fields declared as __le16 2022-06-08 12:28:13 +00:00
hsi
hte hte: Uninitialized variable in hte_ts_get() 2022-05-20 15:54:41 +02:00
hv Drivers: hv: vmbus: Release cpu lock in error case 2022-06-10 08:41:28 +00:00
hwmon hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails 2022-07-01 11:53:29 -07:00
hwspinlock
hwtracing
i2c i2c: mediatek: Fix an error handling path in mtk_i2c_probe() 2022-06-14 22:11:54 +02:00
i3c i3c: master: svc: fix returnvar.cocci warning 2022-05-17 22:34:42 +02:00
idle cpuidle,intel_idle: Fix CPUIDLE_FLAG_IRQ_ENABLE 2022-06-08 18:05:45 +02:00
iio 1st set of IIO fixes for the 5.19 cycle. 2022-06-20 09:49:52 +02:00
infiniband RDMA/cm: Fix memory leak in ib_cm_insert_listen 2022-06-24 16:41:03 -03:00
input Input updates for v5.19-rc1 2022-06-07 15:00:29 -07:00
interconnect Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
iommu iommu/vt-d: Fix RID2PASID setup/teardown failure 2022-07-06 12:59:21 +02:00
ipack
irqchip irqchip/loongson-liointc: Use architecture register to get coreid 2022-06-10 08:57:19 +01:00
isdn
leds ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
macintosh macintosh: via-pmu and via-cuda need RTC_LIB 2022-05-22 15:58:30 +10:00
mailbox mailbox: qcom-ipcc: Fix -Wunused-function with CONFIG_PM_SLEEP=n 2022-05-24 08:08:24 -05:00
mcb
md dm raid: fix KASAN warning in raid5_add_disks 2022-06-29 19:48:04 -04:00
media USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
memory memory: samsung: exynos5422-dmc: Fix refcount leak in of_get_dram_timings 2022-06-06 11:18:20 +02:00
memstick
message
mfd ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
misc Char/Misc driver fixes for 5.19-rc3 - take 2 2022-06-19 09:37:29 -05:00
mmc mmc: mediatek: wait dma stop bit reset to 0 2022-06-15 10:05:56 -07:00
most
mtd mtd: rawnand: gpmi: Fix setting busy timeout setting 2022-06-16 16:46:08 +02:00
mux
net Including fixes from netfilter. 2022-06-30 15:26:55 -07:00
nfc NFC: nxp-nci: don't print header length mismatch on i2c error 2022-06-29 14:05:00 +01:00
ntb
nubus
nvdimm nvdimm: Fix badblocks clear off-by-one error 2022-06-24 11:57:19 -07:00
nvme nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA IM2P33F8ABR1 2022-06-30 08:24:33 +02:00
nvmem
of drm for 5.19-rc1 2022-05-25 16:18:27 -07:00
opp OPP updates for 5.19-rc1 2022-05-25 15:02:26 +02:00
parisc
parport
pci Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
pcmcia ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
peci
perf arm64 updates for 5.19: 2022-05-23 21:06:11 -07:00
phy phy-for-5.19 2022-05-19 16:56:17 +02:00
pinctrl Pin control bulk changes for the v5.19 series: 2022-05-28 11:15:54 -07:00
platform platform-drivers-x86 for v5.19-3 2022-06-29 09:32:06 -07:00
pnp
power Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
powercap Merge branches 'pm-em' and 'pm-cpuidle' 2022-05-23 19:18:51 +02:00
pps
ps3
ptp ptp: ptp_clockmatrix: fix is_single_shot 2022-05-25 21:51:32 -07:00
pwm pwm: pwm-cros-ec: Add channel type support 2022-05-20 16:40:01 +02:00
rapidio
ras
regulator regulator: qcom_smd: correct MP5496 ranges 2022-06-07 20:38:09 +01:00
remoteproc
reset
rpmsg Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
rtc ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
s390 s390 updates for 5.19-rc5 2022-07-01 11:19:14 -07:00
sbus
scsi scsi: hisi_sas: Limit max hw sectors for v3 HW 2022-06-27 22:43:57 -04:00
sh
siox
slimbus Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
soc This pull request contains Broadcom ARM-based SoCs driver fixes for 2022-06-14 12:20:31 +02:00
soundwire
spi spi: rockchip: Unmask IRQ at the final to avoid preemption 2022-06-20 11:35:43 +01:00
spmi
ssb
staging staging: rtl8723bs: Allocate full pwep structure 2022-06-10 09:10:16 +02:00
target blk-mq: remove the done argument to blk_execute_rq_nowait 2022-05-28 06:15:27 -06:00
tc
tee Fix a compiler warning in OP-TEE driver 2022-05-30 14:44:27 +02:00
thermal Thermal control update for 5.19-rc5 2022-07-01 13:00:47 -07:00
thunderbolt USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
tty Merge branch 'rework/kthreads' into for-linus 2022-06-23 19:11:28 +02:00
ufs scsi: ufs: Fix a race between the interrupt handler and the reset handler 2022-06-16 21:32:09 -04:00
uio
usb usb: chipidea: udc: check request status before setting device address 2022-06-24 13:45:23 +02:00
vdpa vduse: Tie vduse mgmtdev and its device 2022-06-24 02:49:48 -04:00
vfio VFIO updates for v5.19-rc1 2022-06-01 13:49:15 -07:00
vhost vhost-vdpa: call vhost_vdpa_cleanup during the release 2022-06-27 08:05:35 -04:00
video A NULL pointer dereference fix for vc4, and 3 patches to improve the 2022-07-01 09:27:55 +10:00
virt Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
virtio virtio_ring: make vring_create_virtqueue_split prettier 2022-06-27 08:05:35 -04:00
vlynq
vme
w1
watchdog watchdog: gxp: Add missing MODULE_LICENSE 2022-06-09 12:20:34 +02:00
xen xen/gntdev: Avoid blocking in unmap_grant_pages() 2022-06-23 15:29:18 +02:00
zorro
Kconfig SCSI misc on 20220604 2022-06-05 09:25:12 -07:00
Makefile SCSI misc on 20220604 2022-06-05 09:25:12 -07:00