ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
xemu/hw
History
Peter Xu 4b519ef1de intel-iommu: optimize nodmar memory regions 
Previously we have per-device system memory aliases when DMAR is
disabled by the system.  It will slow the system down if there are
lots of devices especially when DMAR is disabled, because each of the
aliased system address space will contain O(N) slots, and rendering
such N address spaces will be O(N^2) complexity.

This patch introduces a shared nodmar memory region and for each
device we only create an alias to the shared memory region.  With the
aliasing, QEMU memory core API will be able to detect when devices are
sharing the same address space (which is the nodmar address space)
when rendering the FlatViews and the total number of FlatViews can be
dramatically reduced when there are a lot of devices.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20190313094323.18263-1-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 		2019-03-20 11:44:13 +01:00
..
9pfs virtio: express virtio dependencies with Kconfig 2019-03-07 21:45:53 +01:00
acpi i386, acpi: check acpi_memory_hotplug capacity in pre_plug 2019-03-12 22:31:21 -04:00
adc kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
alpha hw/alpha/Kconfig: DP264 hardware requires e1000 network card 2019-03-20 11:44:13 +01:00
arm audio: introduce -audiodev 2019-03-12 16:45:13 +00:00
audio audio: use qapi AudioFormat instead of audfmt_e 2019-03-11 10:29:26 +01:00
block pci, pc, virtio: features, fixes, cleanups 2019-03-13 19:10:40 +00:00
bt kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
char hw/char/parallel: Make it possible to compile also without CONFIG_PARALLEL 2019-03-18 09:39:57 +01:00
core Machine queue, 2019-03-11 2019-03-12 15:25:46 +00:00
cpu kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
cris cris-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
display audio: introduce -audiodev 2019-03-12 16:45:13 +00:00
dma isa: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
gpio i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
hppa hw/hppa/Kconfig: Dino board requires e1000 network card 2019-03-20 11:44:13 +01:00
hyperv hyperv: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
i2c PPC: E500: Add FSL I2C controller and integrate RTC with it 2019-03-12 14:33:04 +11:00
i386 intel-iommu: optimize nodmar memory regions 2019-03-20 11:44:13 +01:00
ide isa: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
input audio: use qapi AudioFormat instead of audfmt_e 2019-03-11 10:29:26 +01:00
intc kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
ipack build: convert pci.mak to Kconfig 2019-03-07 21:45:53 +01:00
ipmi ipmi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
isa hw/isa/Kconfig: PIIX4 southbridge requires USB UHCI 2019-03-20 11:44:13 +01:00
lm32 pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
m68k m68k-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
mem ppc64: Express dependencies of 'pseries' and 'powernv' machines with kconfig 2019-03-07 21:45:53 +01:00
microblaze pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
mips pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
misc kconfig: add dependencies on CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
moxie moxie-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
net kconfig: add dependencies on CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
nios2 nios2-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
nvram fw_cfg and thunk code clean up 2019-03-12 12:29:53 +00:00
openrisc or1k-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
pci kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
pci-bridge kconfig: add dependencies on CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
pci-host kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
pcmcia kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
ppc hw/ppc/Kconfig: e500 based machines require virtio-net-pci device 2019-03-20 11:44:13 +01:00
rdma kconfig: add dependencies on CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
riscv kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
s390x kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
scsi vhost-user: simplify vhost_user_init/vhost_user_cleanup 2019-03-12 21:22:31 -04:00
sd hw/sd/sdhci: Move PCI-related code into a separate file 2019-03-12 07:49:04 +01:00
sh4 hw/sh4/Kconfig: r2d machine requires the rtl8139 network card 2019-03-20 11:44:13 +01:00
smbios kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
sparc sparc-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
sparc64 hw/char/parallel: Make it possible to compile also without CONFIG_PARALLEL 2019-03-18 09:39:57 +01:00
ssi ssi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
timer i386-softmmu.mak: remove all CONFIG_* except boards definitions 2019-03-07 21:45:53 +01:00
tpm tpm: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
tricore - qtest fixes 2019-03-08 16:31:34 +00:00
unicore32 unicore32-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
usb audio: use qapi AudioFormat instead of audfmt_e 2019-03-11 10:29:26 +01:00
vfio VFIO updates 2019-03-11 2019-03-12 13:37:29 +00:00
virtio vhost-user: Support transferring inflight buffer between qemu and backend 2019-03-12 22:31:21 -04:00
watchdog ptimer: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00
xen xen: fix xen-bus state model to allow frontend re-connection 2019-02-04 11:04:49 +00:00
xenpv xen: Replace few mentions of xend by libxl 2019-01-14 13:45:40 +00:00
xtensa hw: Use PFLASH_CFI0{1,2} and TYPE_PFLASH_CFI0{1,2} 2019-03-11 22:53:44 +01:00
Kconfig kconfig: add dependencies on CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
Makefile.objs i2c: express dependencies with Kconfig 2019-03-07 21:45:53 +01:00