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4b519ef1de
qemu/include/hw
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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
..
acpi i386, acpi: check acpi_memory_hotplug capacity in pre_plug 2019-03-12 22:31:21 -04:00
adc
arm hw/arm/virt: Dynamic memory map depending on RAM requirements 2019-03-05 15:55:09 +00:00
audio audio: use TYPE_MV88W8618_AUDIO instead of hardcoded string 2018-10-29 13:50:15 +01:00
block pflash_cfi01: Add pflash_cfi01_get_blk() helper 2019-03-11 22:53:44 +01:00
char hw/char/pl011: Support all interrupt lines 2019-02-21 18:17:46 +00:00
core hw/core/split-irq: Device that splits IRQ lines 2018-03-02 11:03:45 +00:00
cpu qom/cpu: Add cluster_index to CPUState 2019-01-29 11:46:05 +00:00
cris
display hw/display/milkymist-tmu2: Move inlined code from header to source 2019-02-01 11:58:50 +01:00
dma hw/dma/pl080: Don't use CPU address space for DMA accesses 2018-08-20 11:24:33 +01:00
firmware hw/smbios: fix offset of type 3 sku field 2019-02-22 10:51:31 -05:00
gpio hw/gpio/nrf51_gpio: Add nRF51 GPIO peripheral 2019-01-07 15:23:47 +00:00
hyperv hyperv: process POST_MESSAGE hypercall 2018-10-19 13:44:14 +02:00
i2c i2c:smbus_slave: Add an SMBus vmstate structure 2019-02-27 21:06:08 -06:00
i386 intel-iommu: optimize nodmar memory regions 2019-03-20 11:44:13 +01:00
ide hw/ide: drop iov field from IDEDMA 2019-02-22 09:42:13 +00:00
input hw/input/ps2: Remove PS2State from "qemu/typedefs.h" 2019-01-22 05:14:32 +01:00
intc qom: make interface types abstract 2018-12-11 15:45:22 -02:00
ipack
ipmi qom: make interface types abstract 2018-12-11 15:45:22 -02:00
isa qom: make interface types abstract 2018-12-11 15:45:22 -02:00
kvm
lm32
m68k hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
mem nvdimm: Rename AcpiNVDIMMState into NVDIMMState 2019-03-11 10:44:21 -03:00
mips hw/mips: Use the IEC binary prefix definitions 2018-07-02 15:41:16 +02:00
misc hw/arm/armsse: Unify init-svtor and cpuwait handling 2019-02-28 11:03:04 +00:00
net net: cadence_gem: Add support for selecting the DMA MemoryRegion 2018-10-16 17:13:49 +01:00
nvram hw/nvram/nrf51_nvm: Add nRF51 non-volatile memories 2019-02-01 15:31:26 +00:00
pci gen_pcie_root_port: Add ACS (Access Control Services) capability 2019-03-12 22:31:21 -04:00
pci-bridge Clean up includes 2018-02-09 05:05:11 +01:00
pci-host spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
ppc spapr: Use CamelCase properly 2019-03-12 14:33:05 +11:00
riscv sifive_uart: Implement interrupt pending register 2018-12-20 12:08:43 -08:00
s390x target/s390x: Split out s390-tod.h 2019-02-18 11:25:43 +01:00
scsi scsi: esp: Defer command completion until previous interrupts have been handled 2019-01-11 13:57:24 +01:00
sd sdcard: Reflect when the Spec v3 is supported in the Config Register (SCR) 2018-06-08 13:15:34 +01:00
sh4 avoid TABs in files that only contain a few 2019-01-11 15:46:56 +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 aspeed/smc: snoop SPI transfers to fake dummy cycles 2019-01-29 11:46:05 +00:00
timer hw/timer/pl031: Allow use as an embedded-struct device 2019-02-21 18:17:46 +00:00
tricore
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 updates 2019-03-11 2019-03-12 13:37:29 +00:00
virtio vhost-user-blk: Add support to get/set inflight buffer 2019-03-12 22:31:21 -04:00
watchdog hw/arm/stellaris: Implement watchdog timer 2019-03-05 15:55:09 +00:00
xen pvh: Add x86/HVM direct boot ABI header file 2019-02-05 16:50:16 +01:00
xtensa target/xtensa: add MX interrupt controller 2019-01-28 11:55:20 -08:00
boards.h machine: Move nvdimms state into struct MachineState 2019-03-11 10:44:25 -03:00
bt.h
devices.h hw/devices: Remove unused TC6393XB_RAM definition 2019-03-07 22:16:22 +01:00
elf_ops.h elf-ops.h: Add get_elf_note_type() 2019-02-05 16:50:16 +01:00
empty_slot.h
fw-path-provider.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
hotplug.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
hw.h migration: Split qemu-file.h 2017-06-01 18:49:22 +02:00
ide.h ide/via: Rename functions to match device name 2019-01-25 14:52:12 -05:00
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 elf: Add optional function ptr to load_elf() to parse ELF notes 2019-02-05 16:50:16 +01:00
nmi.h qom: make interface types abstract 2018-12-11 15:45:22 -02:00
or-irq.h hw/core/or-irq: Support more than 16 inputs to an OR gate 2018-06-15 15:23:34 +01:00
pcmcia.h hw/pcmcia: Remove PCMCIACardState from "qemu/typedefs.h" 2019-01-22 05:14:32 +01:00
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 ptimer: Add TRIGGER_ONLY_ON_DECREMENT policy option 2018-07-09 14:51:34 +01:00
qdev-core.h qom: Move compat_props machinery from qdev to QOM 2019-03-11 22:53:44 +01:00
qdev-dma.h
qdev-properties.h qapi: Define PCIe link speed and width properties 2018-12-19 16:48:16 -05:00
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 qom: make interface types abstract 2018-12-11 15:45:22 -02:00
sysbus.h core/sysbus: remove the SysBusDeviceClass::init path 2018-12-13 13:48:03 +00:00
usb.h qemu/queue.h: simplify reverse access to QTAILQ 2019-01-11 15:46:55 +01:00