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OpenCloudOS-Kernel
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Will Deacon a0be1db430 virtio_pci: Limit DMA mask to 44 bits for legacy virtio devices 
Legacy virtio defines the virtqueue base using a 32-bit PFN field, with
a read-only register indicating a fixed page size of 4k.

This can cause problems for DMA allocators that allocate top down from
the DMA mask, which is set to 64 bits. In this case, the addresses are
silently truncated to 44-bit, leading to IOMMU faults, failure to read
from the queue or data corruption.

This patch restricts the coherent DMA mask for legacy PCI virtio devices
to 44 bits, which matches the specification.

Cc: stable@vger.kernel.org
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Benjamin Serebrin <serebrin@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 		2016-10-31 00:21:39 +02:00
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accessibility
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acpi Merge branches 'acpica-fixes', 'acpi-pci-fixes' and 'acpi-apei-fixes' 2016-10-29 01:58:03 +02:00
amba
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android ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct 2016-10-24 19:37:48 +02:00
ata ahci: fix the single MSI-X case in ahci_init_one 2016-10-25 11:43:07 -04:00
atm
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auxdisplay auxdisplay: img-ascii-lcd: driver for simple ASCII LCD displays 2016-10-06 17:03:41 +02:00
base driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger 2016-10-27 17:47:12 +02:00
bcma
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block block: DAC960: print a hex number after a 0x prefix 2016-10-27 18:43:43 -07:00
bluetooth Bluetooth: btusb: Fix atheros firmware download error 2016-10-07 09:46:56 +02:00
bus bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TEST 2016-10-17 13:46:09 -07:00
cdrom
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char Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-24 21:34:13 -07:00
clk clk: at91: Fix a return value in case of error 2016-10-20 16:37:56 -07:00
clocksource Revert "clocksource/drivers/timer_sun5i: Replace code by clocksource_mmio_init" 2016-10-20 21:58:58 +02:00
connector
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cpufreq Merge branches 'pm-cpufreq-fixes' and 'pm-sleep-fixes' 2016-10-29 01:29:17 +02:00
cpuidle Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-10-10 14:04:16 -07:00
dax device-dax: fix percpu_ref_exit ordering 2016-10-27 17:04:05 -07:00
dca
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devfreq PM / devfreq: Skip status update on uninitialized previous_freq 2016-10-11 00:01:20 +02:00
dio
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dma dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
dma-buf Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux 2016-10-11 18:12:22 -07:00
edac * Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO 2016-10-04 12:06:26 -07:00
eisa
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extcon extcon: qcom-spmi-misc: Sync the extcon state on interrupt 2016-10-26 16:04:29 +09:00
firewire firewire: nosy: do not ignore errors in ioremap_nocache() 2016-10-09 11:38:11 +02:00
firmware efi/arm: Fix absolute relocation detection for older toolchains 2016-10-19 14:49:44 +02:00
fmc
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fpga
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gpio gpio: mpc8xxx: Correct irq handler function 2016-10-24 02:20:40 +02:00
gpu drm/drivers: add support for using the arch wc mapping API. 2016-10-26 16:48:01 +10:00
hid HID: add quirk for Akai MIDImix. 2016-10-10 10:58:22 +02:00
hsi
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hv hv: do not lose pending heartbeat vmbus packets 2016-10-25 08:52:10 +02:00
hwmon hwmon: (max31790) potential ERR_PTR dereference 2016-10-17 10:16:20 -07:00
hwspinlock
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hwtracing
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i2c i2c: imx: defer probe if bus recovery GPIOs are not ready 2016-10-25 12:15:00 +02:00
ide
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idle nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
iio First set of IIO fixes for the 4.9 cycle. 2016-10-24 10:50:13 +02:00
infiniband Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-10-14 13:19:30 -07:00
iommu IOMMU Updates for Linux v4.9 2016-10-11 12:52:41 -07:00
ipack ipack: print a hex number after a 0x prefix 2016-10-27 18:43:43 -07:00
irqchip GIC updates for Linux 4.9-rc2 2016-10-21 21:40:29 +02:00
isdn
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leds
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lguest
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lightnvm Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block 2016-10-07 14:42:05 -07:00
macintosh
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mailbox Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2016-10-06 17:36:53 -07:00
mcb mcb: Add a dma_device to mcb_device 2016-09-27 12:33:47 +02:00
md - A couple DM raid and DM mirror fixes 2016-10-28 09:27:58 -07:00
media Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
memory ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
memstick memstick: rtsx_usb_ms: Manage runtime PM when accessing the device 2016-10-17 15:43:05 +02:00
message
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mfd - Core Frameworks 2016-10-07 08:35:35 -07:00
misc Char/Misc driver fixes for 4.9-rc3 2016-10-29 11:19:02 -07:00
mmc mmc: rtsx_usb_sdmmc: Handle runtime PM while changing the led 2016-10-17 15:43:03 +02:00
mtd ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap() 2016-10-28 14:48:18 +02:00
net Merge of the qedr RoCE driver 2016-10-14 13:43:08 -07:00
nfc
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ntb
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nubus
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nvdimm nvdimm: make CONFIG_NVDIMM_DAX 'bool' 2016-10-27 16:16:21 -07:00
nvme Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2016-10-21 10:54:01 -07:00
nvmem ARM: SoC driver updates for v4.9 2016-10-07 21:23:40 -07:00
of Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-10-15 09:26:12 -07:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
parisc
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parport
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pci doc: Add missing parameter for msi_setup 2016-10-26 12:05:34 +02:00
pcmcia
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perf perf: xgene: Remove bogus IS_ERR() check 2016-10-17 15:50:07 +01:00
phy
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pinctrl pinctrl: intel: Only restore pins that are used by the driver 2016-10-18 14:38:16 +02:00
platform platform-drivers-x86 for 4.9-2 2016-10-19 11:45:06 -07:00
pnp
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power power supply and reset changes for the v4.9 series 2016-10-06 18:21:15 -07:00
powercap
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pps pps: kc: fix non-tickless system config dependency 2016-10-11 15:06:32 -07:00
ps3
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ptp drivers/ptp: Fix kernel memory disclosure 2016-10-13 10:20:06 -04:00
pwm
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rapidio mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
ras
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regulator Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-10-12 11:05:23 -07:00
remoteproc rpmsg updates for v4.9 2016-10-06 17:03:49 -07:00
reset reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs 2016-10-22 18:31:42 +09:00
rpmsg
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rtc RTC for 4.9 2016-10-14 13:13:44 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2016-10-27 14:16:30 -07:00
sbus
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scsi SCSI fixes on 20161027 2016-10-27 10:08:58 -07:00
sfi
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sh
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sn
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soc powerpc updates for 4.9 #2 2016-10-14 11:07:42 -07:00
spi kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
spmi spmi: pmic-arb: Return an error code if sanity check fails 2016-09-27 12:43:34 +02:00
ssb
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staging Staging/IIO driver fixes for 4.9-rc3 2016-10-29 10:20:59 -07:00
target target/tcm_fc: use CPU affinity for responses 2016-10-21 01:19:44 -07:00
tc
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thermal thermal/powerclamp: correct cpu support check 2016-10-20 14:15:44 +08:00
thunderbolt
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tty tty: serial_core: fix NULL struct tty pointer access in uart_write_wakeup 2016-10-28 08:13:07 -04:00
uio
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usb usb: chipidea: host: fix NULL ptr dereference during shutdown 2016-10-25 16:14:32 +08:00
uwb
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vfio vfio_pci: use pci_alloc_irq_vectors 2016-09-29 13:36:38 -06:00
vhost
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video Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
virt mm: replace get_user_pages() write/force parameters with gup_flags 2016-10-19 08:11:43 -07:00
virtio virtio_pci: Limit DMA mask to 44 bits for legacy virtio devices 2016-10-31 00:21:39 +02:00
vlynq
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vme vme: vme_get_size potentially returning incorrect value on failure 2016-10-28 08:25:18 -04:00
w1
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watchdog Merge branches 'acpi-wdat' and 'acpi-cppc' 2016-10-21 22:24:23 +02:00
xen xen: fixes for 4.9-rc2 2016-10-24 19:52:24 -07:00
zorro
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Kconfig
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Makefile A small bug fix and a new driver for acting as an IPMI device. 2016-10-23 15:56:23 -07:00