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Peter Xu dfbd90e5b9 vfio: allow to notify unmap for very large region 
Linux vfio driver supports to do VFIO_IOMMU_UNMAP_DMA for a very big
region. This can be leveraged by QEMU IOMMU implementation to cleanup
existing page mappings for an entire iova address space (by notifying
with an IOTLB with extremely huge addr_mask). However current
vfio_iommu_map_notify() does not allow that. It make sure that all the
translated address in IOTLB is falling into RAM range.

The check makes sense, but it should only be a sensible checker for
mapping operations, and mean little for unmap operations.

This patch moves this check into map logic only, so that we'll get
faster unmap handling (no need to translate again), and also we can then
better support unmapping a very big region when it covers non-ram ranges
or even not-existing ranges.

Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 		2017-02-17 21:52:31 +02:00
..
9pfs This pull request fixes a 2.9 regression and a long standing bug that can 2017-01-25 17:54:14 +00:00
acpi machine: Make possible_cpu_arch_ids() return const pointer 2017-01-23 21:25:37 -02:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
alpha Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
arm aspeed: remove useless comment on controller segment size 2017-02-10 17:40:29 +00:00
audio es1370: wire up reset via DeviceClass 2017-01-11 09:19:03 +01:00
block virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
bt chardev: qom-ify 2017-01-27 18:08:00 +01:00
char hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
core vmstate registration: check return values 2017-02-06 13:36:49 +01:00
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 migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
dma migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
gpio hw/gpio: QOM'ify mpc8xxx.c 2017-01-31 10:10:13 +11:00
i2c arm: Uniquely name imx25 I2C buses. 2017-01-20 11:15:06 +00:00
i386 kvm/ioapic: correct kvm ioapic version 2017-02-16 14:06:55 +01:00
ide ahci: advertise HOST_CAP_64 2017-02-10 11:47:11 -05:00
input -----BEGIN PGP SIGNATURE----- 2017-02-02 16:08:28 +00:00
intc apic: reset apic_delivered global variable on machine reset 2017-02-16 14:06:55 +01:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
isa Allow ISA bus to be configured out 2017-02-06 12:33:21 +11:00
lm32 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
m68k hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +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 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
misc report guest crash information in GUEST_PANICKED event 2017-02-16 15:30:49 +01:00
moxie hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
net virtio: use VRingMemoryRegionCaches for avail and used rings 2017-02-17 21:52:30 +02:00
nios2 nios2: Add Altera 10M50 GHRD emulation 2017-01-24 13:10:35 -08:00
nvram migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
openrisc target/openrisc: Rename the cpu from or32 to or1k 2017-02-14 08:14:58 +11:00
pci pcie: simplify pcie_add_capability() 2017-02-17 21:52:31 +02:00
pci-bridge ppc patch queue 2017-02-02 2017-02-02 18:48:06 +00:00
pci-host ppc: Make uninorth interrupt swizzling identical to Grackle 2016-11-23 12:00:48 +11:00
pcmcia hw: Clean up includes 2016-01-29 15:07:25 +00:00
ppc report guest crash information in GUEST_PANICKED event 2017-02-16 15:30:49 +01:00
s390x s390x/kvm: fix small race reboot vs. cmma 2017-02-01 09:11:56 +01:00
scsi virtio: Report real progress in VQ aio poll handler 2017-02-17 21:52:30 +02:00
sd migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
sh4 cputlb: drop flush_global flag from tlb_flush 2017-01-13 14:24:37 +00:00
smbios stubs: move smbios stubs to hw/smbios 2017-01-16 17:52:35 +01:00
sparc fw_cfg: move FW_CFG_NB_CPUS out of fw_cfg_init1() 2016-11-16 12:09:58 -02:00
sparc64 target-sparc: fix up niagara machine 2017-01-18 22:03:44 +01:00
ssi aspeed/smc: use a modulo to check segment limits 2017-02-10 17:40:30 +00:00
timer migration: consolidate VMStateField.start 2017-02-13 17:27:13 +00:00
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 xhci: fix event queue IRQ handling 2017-02-06 12:12:26 +01:00
vfio vfio: allow to notify unmap for very large region 2017-02-17 21:52:31 +02:00
virtio virtio: Fix no interrupt when not creating msi controller 2017-02-17 21:52:30 +02:00
watchdog wdt: Add Aspeed watchdog device model 2017-02-07 18:29:59 +00:00
xen Xen 2017/02/02 2017-02-03 12:31:40 +00:00
xenpv xenpv: Fix qemu_uuid compiling error 2016-09-29 11:43:17 +08:00
xtensa target/xtensa: refactor CCOUNT/CCOMPARE 2017-01-15 13:01:55 -08:00
Makefile.objs acpi: filter based on CONFIG_ACPI_X86 rather than TARGET 2017-01-16 17:52:35 +01:00