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f06a696dc9
qemu/hw
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Peter Xu f06a696dc9 intel_iommu: provide its own replay() callback 
The default replay() don't work for VT-d since vt-d will have a huge
default memory region which covers address range 0-(2^64-1). This will
normally consumes a lot of time (which looks like a dead loop).

The solution is simple - we don't walk over all the regions. Instead, we
jump over the regions when we found that the page directories are empty.
It'll greatly reduce the time to walk the whole region.

To achieve this, we provided a page walk helper to do that, invoking
corresponding hook function when we found an page we are interested in.
vtd_page_walk_level() is the core logic for the page walking. It's
interface is designed to suite further use case, e.g., to invalidate a
range of addresses.

Reviewed-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: \"Michael S. Tsirkin\" <mst@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1491562755-23867-8-git-send-email-peterx@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-04-20 15:22:41 -03:00
..
9pfs 9pfs: local: set the path of the export root to "." 2017-04-18 14:01:43 +01:00
acpi tco: do not generate an NMI 2017-04-05 17:23:52 +02:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
alpha hw: Default -drive to if=ide explicitly where it works 2017-02-21 13:10:53 +01:00
arm xlnx-zynqmp: Set the Cadence GEM revision 2017-04-20 17:39:17 +01:00
audio es1370: wire up reset via DeviceClass 2017-01-11 09:19:03 +01:00
block xen: do not build backends for targets that do not support xen 2017-03-19 11:12:12 +01:00
bt chardev: qom-ify 2017-01-27 18:08:00 +01:00
char hw/char/exynos4210_uart: Constify static array and few arguments 2017-04-20 17:39:17 +01:00
core block: add missed aio_context_acquire into release_drive 2017-04-03 17:11:39 +02:00
cpu Introduce DEVICE_CATEGORY_CPU for CPU devices 2017-01-27 18:07:31 +01:00
cris cris: Fix broken header guard in hw/cris/boot.h 2016-07-12 16:20:46 +02:00
display qxl: add migration blocker to avoid pre-save assert 2017-04-11 08:38:17 +02:00
dma dma/rc4030: fix a mixed declarations and code warning 2017-03-20 11:20:35 +00:00
gpio bcm2835_gpio: add bcm2835 gpio controller 2017-02-28 17:10:00 +00:00
i2c arm: Uniquely name imx25 I2C buses. 2017-01-20 11:15:06 +00:00
i386 intel_iommu: provide its own replay() callback 2017-04-20 15:22:41 -03:00
ide ide: ahci: call cleanup function in ahci unit 2017-03-15 20:50:14 -04:00
input virtio-input: fix eventq batching 2017-03-27 12:14:45 +02:00
intc hw/intc/arm_gicv3_kvm: Check KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS in reset 2017-03-31 12:41:14 +01:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi ipmi: Fix macro issues 2017-04-02 21:17:47 +02:00
isa tco: do not generate an NMI 2017-04-05 17:23:52 +02:00
lm32 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
m68k hw/m68k: QOMify the ColdFire interrupt controller 2017-02-18 22:23:31 +01:00
mem pc: memhp: enable nvdimm device hotplug 2016-11-01 19:21:09 +02:00
microblaze clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
mips hw/mips: MIPS Boston board support 2017-02-24 10:37:21 +00:00
misc hw/misc/exynos4210_pmu: Reorder local variables for readability 2017-04-20 17:39:17 +01:00
moxie hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
net cadence_gem: Make the revision a property 2017-04-20 17:39:17 +01:00
nios2 nios2: iic: Convert CPU prop to qom link 2017-03-18 18:22:54 +00:00
nvram hw/block: Request permissions 2017-02-28 20:40:36 +01:00
openrisc target/openrisc: Rename the cpu from or32 to or1k 2017-02-14 08:14:58 +11:00
pci pci: Only unmap bus_master_enabled_region if was added previously 2017-04-04 18:32:25 +03:00
pci-bridge ppc patch queue 2017-02-02 2017-02-02 18:48:06 +00:00
pci-host ppc patch queue for 2017-02-22 2017-02-24 10:13:57 +00:00
pcmcia hw: Clean up includes 2016-01-29 15:07:25 +00:00
ppc pseries: Enforce homogeneous threads-per-core 2017-04-03 13:46:18 +10:00
s390x s390x/css: reassign subchannel if schid is changed after migration 2017-03-20 09:22:57 +01:00
scsi * MTTCG fix for win32 2017-03-27 17:34:50 +01:00
sd Block layer patches 2017-03-01 23:09:46 +00:00
sh4 hw: Default -drive to if=ide explicitly where it works 2017-02-21 13:10:53 +01:00
smbios stubs: move smbios stubs to hw/smbios 2017-01-16 17:52:35 +01:00
sparc sparc/sparc64: grab BQL before calling cpu_check_irqs 2017-03-09 10:41:38 +00:00
sparc64 sparc/sparc64: grab BQL before calling cpu_check_irqs 2017-03-09 10:41:38 +00:00
ssi aspeed/smc: use a modulo to check segment limits 2017-02-10 17:40:30 +00:00
timer hw/arm/exynos: Convert fprintf to qemu_log_mask/error_report 2017-04-20 17:39:17 +01:00
tpm clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
tricore tricore: remove useless cast 2016-09-15 15:32:22 +03:00
unicore32 clean-up: removed duplicate #includes 2016-10-28 18:17:24 +03:00
usb usb-host: switch to LIBUSB_API_VERSION 2017-04-03 14:41:23 +01:00
vfio memory: add section range info for IOMMU notifier 2017-04-20 15:22:41 -03:00
virtio memory: add section range info for IOMMU notifier 2017-04-20 15:22:41 -03:00
watchdog wdt: Add Aspeed watchdog device model 2017-02-07 18:29:59 +00:00
xen xen: do not build backends for targets that do not support xen 2017-03-19 11:12:12 +01:00
xenpv xenpv: Fix qemu_uuid compiling error 2016-09-29 11:43:17 +08:00
xtensa target/xtensa: xtfpga: load DTB only when FDT support is enabled 2017-03-11 14:59:03 -08:00
Makefile.objs acpi: filter based on CONFIG_ACPI_X86 rather than TARGET 2017-01-16 17:52:35 +01:00