Peter Xu 63b88968f1 intel-iommu: rework the page walk logic ... This patch fixes a potential small window that the DMA page table might be incomplete or invalid when the guest sends domain/context invalidations to a device. This can cause random DMA errors for assigned devices. This is a major change to the VT-d shadow page walking logic. It includes but is not limited to: - For each VTDAddressSpace, now we maintain what IOVA ranges we have mapped and what we have not. With that information, now we only send MAP or UNMAP when necessary. Say, we don't send MAP notifies if we know we have already mapped the range, meanwhile we don't send UNMAP notifies if we know we never mapped the range at all. - Introduce vtd_sync_shadow_page_table[_range] APIs so that we can call in any places to resync the shadow page table for a device. - When we receive domain/context invalidation, we should not really run the replay logic, instead we use the new sync shadow page table API to resync the whole shadow page table without unmapping the whole region. After this change, we'll only do the page walk once for each domain invalidations (before this, it can be multiple, depending on number of notifiers per address space). While at it, the page walking logic is also refactored to be simpler. CC: QEMU Stable <qemu-stable@nongnu.org> Reported-by: Jintack Lim <jintack@cs.columbia.edu> Tested-by: Jintack Lim <jintack@cs.columbia.edu> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2018-05-23 17:34:05 +03:00
..
acpi	hw/arm/virt-acpi-build: Add smmuv3 node in IORT table	2018-05-04 18:52:58 +01:00
adc	STM32F2xx: Add the ADC device	2016-10-04 13:28:07 +01:00
arm	xlnx-zynqmp: Connect the ZynqMP GDMA and ADMA	2018-05-18 17:48:07 +01:00
audio	hw/audio/wm8750: move WM8750 declarations from i2c/i2c.h to audio/wm8750.h	2018-02-02 08:19:25 +01:00
block	Include less of the generated modular QAPI headers	2018-03-02 13:45:50 -06:00
char	serial-isa: Use MAX_ISA_SERIAL_PORTS instead of MAX_SERIAL_PORTS	2018-04-26 13:57:00 +01:00
core	hw/core/split-irq: Device that splits IRQ lines	2018-03-02 11:03:45 +00:00
cpu	hw: remove "qemu/osdep.h" from header files	2017-12-18 17:07:02 +03:00
cris	char: rename CharDriverState Chardev	2017-01-27 18:07:59 +01:00
display	hw/display/vga: extract public API from i386/pc to "hw/display/vga.h"	2017-12-18 17:07:02 +03:00
dma	xlnx-zdma: Add a model of the Xilinx ZynqMP generic DMA	2018-05-18 17:48:07 +01:00
gpio	bcm2835_gpio: add bcm2835 gpio controller	2017-02-28 17:10:00 +00:00
i2c	i2c: Move the bus class to i2c.h	2018-03-01 11:05:45 +00:00
i386	intel-iommu: rework the page walk logic	2018-05-23 17:34:05 +03:00
ide	Include qapi/error.h exactly where needed	2018-02-09 13:50:17 +01:00
input	ps2: Fix mouse stream corruption due to lost data	2018-05-15 11:31:33 +02:00
intc	heathrow: remove obsolete heathow_init() function	2018-04-27 18:05:22 +10:00
ipack	ipack: Update e-mail address	2016-05-18 15:04:27 +03:00
ipmi	ipmi: introduce an ipmi_bmc_gen_event() API	2017-04-26 12:41:55 +10:00
isa	superio: Don't use MAX_SERIAL_PORTS for serial port limit	2018-04-26 13:57:00 +01:00
kvm
lm32	intc: make HMP 'info irq' and 'info pic' commands use InterruptStatsProvider interface	2016-10-04 10:00:25 +02:00
m68k	hw/char/mcf_uart: QOMify the ColdFire UART	2017-02-16 14:06:56 +01:00
mem	nvdimm: fix typo in label-size definition	2018-05-23 17:02:03 +03:00
mips	mips: malta/boston: replace cpu_model with cpu_type	2017-10-27 16:04:28 +02:00
misc	mac_newworld: move wiring of macio IRQs to macio_newworld_realize()	2018-05-04 15:00:37 +10:00
net	imx_fec: Reserve full FSL_IMX25_FEC_SIZE page for the register file	2018-01-11 13:25:38 +00:00
nvram	Clean up includes	2018-02-09 05:05:11 +01:00
pci	allocate pci id for mdpy	2018-05-23 03:14:40 +03:00
pci-bridge	Clean up includes	2018-02-09 05:05:11 +01:00
pci-host	uninorth: create new uninorth device	2018-05-04 15:00:37 +10:00
ppc	trivial: Do not include pci.h if it is not necessary	2018-05-20 08:40:00 +03:00
riscv	RISC-V: Make virt header comment title consistent	2018-05-06 10:39:38 +12:00
s390x	s390x: refactor reset/reipl handling	2018-05-14 17:10:02 +02:00
scsi	scsi-disk: allow customizing the SCSI version	2018-04-09 16:36:39 +02:00
sd	sdcard: use the registerfields API to access the OCR register	2018-02-22 15:12:52 +00:00
sh4	char: rename CharDriverState Chardev	2017-01-27 18:07:59 +01:00
smbios	Move include qemu/option.h from qemu-common.h to actual users	2018-02-09 13:52:16 +01:00
sparc	sun4u_iommu: update to reflect IOMMU is no longer part of the APB device	2018-01-09 21:48:20 +00:00
ssi	xilinx_spips: Set all of the reset values	2017-12-13 17:59:26 +00:00
timer	xlnx-zynqmp-rtc: Add basic time support	2018-03-02 10:45:34 +00:00
tricore	Clean up header guards that don't match their file name	2016-07-12 16:19:16 +02:00
unicore32	hw/unicore32: restrict hw addr defines to source file	2017-12-18 17:07:02 +03:00
usb	usb: Add basic code to emulate Chipidea USB IP	2018-02-09 10:40:30 +00:00
vfio	vfio-pci: Allow mmap of MSIX BAR	2018-03-13 11:17:31 -06:00
virtio	virtio: support setting memory region based host notifier	2018-05-23 17:01:54 +03:00
watchdog	watchdog: wdt_aspeed: Add support for the reset width register	2017-09-04 15:21:54 +01:00
xen	xen: Remove now-obsolete xen_xc_domain_add_to_physmap	2018-04-26 16:29:51 +01:00
xtensa	Clean up includes	2018-02-09 05:05:11 +01:00
boards.h	machine: rename MemoryHotplugState to DeviceMemoryState	2018-05-07 10:00:02 -03:00
bt.h	char: rename CharDriverState Chardev	2017-01-27 18:07:59 +01:00
compat.h	spapr: Introduce pseries-2.13 machine type	2018-04-27 18:05:22 +10:00
devices.h	sm501: QOMify	2017-04-24 12:32:12 +01:00
elf_ops.h	Add symbol table callback interface to load_elf	2018-03-07 08:30:28 +13:00
empty_slot.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
fw-path-provider.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
hotplug.h	qdev: hotplug: drop HotplugHandler.post_plug callback	2016-11-15 17:20:37 +02:00
hw.h	migration: Split qemu-file.h	2017-06-01 18:49:22 +02:00
ide.h	xen-platform: add missing disk unplug option	2017-01-27 15:23:29 -08:00
irq.h	hw/core/split-irq: Device that splits IRQ lines	2018-03-02 11:03:45 +00:00
loader-fit.h	Use #include "..." for our own headers, <...> for others	2018-02-09 05:05:11 +01:00
loader.h	Add symbol table callback interface to load_elf	2018-03-07 08:30:28 +13:00
nmi.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
or-irq.h	include/hw/or-irq.h: Add missing include guard	2018-03-02 11:03:45 +00:00
pcmcia.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
platform-bus.h	platform-bus-device: use device plug callback instead of machine_done notifier	2018-05-10 18:10:56 +01:00
ptimer.h	include/hw/ptimer.h: Add documentation comments	2017-07-11 17:44:27 +03:00
qdev-core.h	qdev: Add new qdev_init_gpio_in_named_with_opaque()	2018-03-02 11:03:45 +00:00
qdev-dma.h	qdev: Remove hex8/32/64 property types	2014-02-14 21:12:04 +01:00
qdev-properties.h	net: Remove the deprecated "vlan" parameter	2018-05-14 15:47:14 +08:00
qdev.h
register.h	hw: register: Run post_write hook on reset	2018-03-01 11:05:43 +00:00
registerfields.h	Use #include "..." for our own headers, <...> for others	2018-02-09 05:05:11 +01:00
stream.h	Clean up decorations and whitespace around header guards	2016-07-12 16:20:46 +02:00
sysbus.h	sysbus: Remove ignored return value of FindSysbusDeviceFunc	2016-09-27 17:03:34 -03:00
usb.h	usb: Remove legacy -usbdevice options (host, serial, disk and net)	2018-01-26 07:15:08 +01:00