qemu-e2k/hw
Alexey Kardashevskiy df7625d422 spapr_iommu: Introduce "enabled" state for TCE table
Currently TCE tables are created once at start and their sizes never
change. We are going to change that by introducing a Dynamic DMA windows
support where DMA configuration may change during the guest execution.

This changes spapr_tce_new_table() to create an empty zero-size IOMMU
memory region (IOMMU MR). Only LIOBN is assigned by the time of creation.
It still will be called once at the owner object (VIO or PHB) creation.

This introduces an "enabled" state for TCE table objects, some
helper functions are added:
- spapr_tce_table_enable() receives TCE table parameters, stores in
sPAPRTCETable and allocates a guest view of the TCE table
(in the user space or KVM) and sets the correct size on the IOMMU MR;
- spapr_tce_table_disable() disposes the table and resets the IOMMU MR
size; it is made public as the following DDW code will be using it.

This changes the PHB reset handler to do the default DMA initialization
instead of spapr_phb_realize(). This does not make differenct now but
later with more than just one DMA window, we will have to remove them all
and create the default one on a system reset.

No visible change in behaviour is expected except the actual table
will be reallocated every reset. We might optimize this later.

The other way to implement this would be dynamically create/remove
the TCE table QOM objects but this would make migration impossible
as the migration code expects all QOM objects to exist at the receiver
so we have to have TCE table objects created when migration begins.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-07 10:17:45 +10:00
..
9pfs 9p: switch back to readdir() 2016-06-06 11:52:34 +02:00
acpi acpi: do not use TARGET_PAGE_SIZE 2016-05-19 16:42:28 +02:00
alpha alpha: include cpu-qom.h in files that require AlphaCPU 2016-05-19 16:42:27 +02:00
arm zynqmp: Add the ZCU102 board 2016-06-06 16:59:32 +01:00
audio hw/audio: QOM'ify milkymist-ac97.c 2016-06-03 11:13:38 +02:00
block dma-helpers: change interface to byte-based 2016-05-25 19:04:11 +02:00
bt bt: rewrite csrhci_write to avoid out-of-bounds writes 2016-05-29 09:11:11 +02:00
char hw/char: QOM'ify xilinx_uartlite model 2016-06-06 16:59:32 +01:00
core hw/ptimer: Introduce ptimer_get_limit 2016-06-06 16:59:31 +01:00
cpu explicitly include qom/cpu.h 2016-05-19 16:42:27 +02:00
cris hw/char: QOM'ify etraxfs_ser.c 2016-05-29 09:11:10 +02:00
display virtio-gpu: add live migration support 2016-06-06 09:04:34 +02:00
dma hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
gpio hw: clean up hw/hw.h includes 2016-05-19 16:42:30 +02:00
i2c i2c: add aspeed i2c controller 2016-06-06 16:59:29 +01:00
i386 pc: Set CPU model-id on compat_props for pc <= 2.4 2016-05-23 13:19:36 -03:00
ide dma-helpers: change BlockBackend to opaque value in DMAIOFunc 2016-05-25 19:04:11 +02:00
input hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
intc hw/intc/gic: RAZ/WI non-sec access to sec interrupts 2016-06-06 16:59:29 +01:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi
isa explicitly include qom/cpu.h 2016-05-19 16:42:27 +02:00
lm32 hw/char: QOM'ify milkymist-uart.c 2016-05-29 09:11:10 +02:00
m68k hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
mem
microblaze hw/char: QOM'ify xilinx_uartlite model 2016-06-06 16:59:32 +01:00
mips mips: use MIPSCPU instead of CPUMIPSState 2016-05-19 16:42:27 +02:00
misc memory: remove qemu_get_ram_fd, qemu_set_ram_fd, qemu_ram_block_host_ptr 2016-05-29 09:11:12 +02:00
moxie
net e1000e: Fix build with gcc 4.6.3 and ust tracing 2016-06-06 09:42:54 +01:00
nvram vl: Replace DT_NOGRAPHIC with machine option 2016-05-20 14:28:54 -03:00
openrisc
pci pcie: Introduce function for DSN capability creation 2016-06-02 10:42:26 +08:00
pci-bridge hw/pci-bridge: Add missing unref in case register-bus fails 2016-04-07 19:57:33 +03:00
pci-host hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
pcmcia
ppc spapr_iommu: Introduce "enabled" state for TCE table 2016-06-07 10:17:45 +10:00
s390x s390: use FILE instead of QEMUFile for creating text file 2016-05-26 11:31:05 +05:30
scsi scsi-disk: fix reads from scsi-disk devices 2016-06-06 13:23:41 +01:00
sd hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
sh4 cpu: move exec-all.h inclusion out of cpu.h 2016-05-19 16:42:29 +02:00
smbios
sparc vl: Replace DT_NOGRAPHIC with machine option 2016-05-20 14:28:54 -03:00
sparc64 util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
ssi hw: explicitly include qemu/log.h 2016-05-19 16:42:29 +02:00
timer aspeed: include qemu/log.h 2016-05-20 13:09:22 +01:00
tpm tpm: Fix write to file descriptor function 2016-04-13 19:52:34 +03:00
tricore hw: explicitly include qemu-common.h and cpu.h 2016-03-22 22:20:17 +01:00
unicore32
usb usb/ohci: Fix crash with when specifying too many num-ports 2016-05-23 14:59:40 +02:00
vfio vfio: Check that IOMMU MR translates to system address space 2016-05-26 11:12:09 -06:00
virtio memory: split memory_region_from_host from qemu_ram_addr_from_host 2016-05-29 09:11:12 +02:00
watchdog nmi: remove x86 specific nmi handling 2016-05-23 16:53:46 +02:00
xen xen: write information about supported backends 2016-05-23 13:30:03 +02:00
xenpv xen: add pvUSB backend 2016-05-23 13:30:03 +02:00
xtensa qemu-common: push cpu.h inclusion out of qemu-common.h 2016-05-19 16:42:29 +02:00
Makefile.objs Add a base IPMI interface 2015-12-22 18:39:19 +02:00