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e68cd0cb5c
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Alexey Kardashevskiy e68cd0cb5c spapr: Render full FDT on ibm,client-architecture-support 
The ibm,client-architecture-support call is a way for the guest to
negotiate capabilities with a hypervisor. It is implemented as:
- the guest calls SLOF via client interface;
- SLOF calls QEMU (H_CAS hypercall) with an options vector from the guest;
- QEMU returns a device tree diff (which uses FDT format with
an additional header before it);
- SLOF walks through the partial diff tree and updates its internal tree
with the values from the diff.

This changes QEMU to simply re-render the entire tree and send it as
an update. SLOF can handle this already mostly, [1] is needed before this
can be applied. This stores the resulting tree in the spapr machine to have
the latest valid FDT copy possible (this should not matter much as
H_UPDATE_DT happens right after that but nevertheless).

The benefit is reduced code size as there is no need for another set of
DT rendering helpers such as spapr_fixup_cpu_dt().

The downside is that the updates are bigger now (as they include all
nodes and properties) but the difference on a '-smp 256,threads=1' system
before/after is 2.35s vs. 2.5s.

[1] https://patchwork.ozlabs.org/patch/1152915/

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-04 19:08:21 +10:00
..
9pfs 9p: simplify source file selection 2019-08-20 17:26:19 +02:00
acpi ipmi: Fix SSIF ACPI handling to use the right CRS 2019-09-20 14:08:10 -05:00
adc Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
alpha Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
arm hw/arm/boot: Use the IEC binary prefix definitions 2019-09-27 11:44:39 +01:00
audio audio: remove audio_MIN, audio_MAX 2019-08-21 09:13:37 +02:00
block xen-block: treat XenbusStateUnknown the same as XenbusStateClosed 2019-09-24 12:21:11 +01:00
bt Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
char escc: introduce a selector for the register bit 2019-09-07 08:32:12 +02:00
core hw/core/loader: Fix possible crash in rom_copy() 2019-10-01 11:42:27 +02:00
cpu hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
cris Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
display ati: use vga_read_byte in ati_cursor_define 2019-09-19 10:37:46 +02:00
dma hw/dma/xilinx_axi: Use object_initialize_child for correct ref. counting 2019-09-03 16:20:34 +01:00
gpio hw/gpio: Add basic Aspeed GPIO model for AST2400 and AST2500 2019-09-13 16:05:00 +01:00
hppa Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
hyperv Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
i2c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
i386 pc: Add an SMB0 ACPI device to q35 2019-09-20 14:09:24 -05:00
ide hw/ide/atapi: Use the ldst API 2019-08-16 19:14:04 -04:00
input sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
intc spapr/irq: Only claim VALID interrupts at the KVM level 2019-10-04 10:25:23 +10:00
ipack Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
ipmi ipmi: Add an SMBus IPMI interface 2019-09-20 14:08:10 -05:00
isa hw/core: Move cpu.c, cpu.h from qom/ to hw/core/ 2019-08-21 13:24:01 +02:00
lm32 Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
m68k hw/m68k/next-cube: Avoid static RTC variables and introduce control register 2019-10-01 11:42:27 +02:00
mem numa: move numa global variable nb_numa_nodes into MachineState 2019-09-03 11:26:55 -03:00
microblaze hw/misc: Add a config switch for the "unimplemented" device 2019-08-20 09:11:17 +02:00
mips hw/mips/mips_jazz: Remove no-longer-necessary override of do_unassigned_access 2019-09-12 18:25:34 +02:00
misc trace: Remove trailing newline in events 2019-09-18 10:19:47 +01:00
moxie Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
net hw/net/vmxnet3: Fix leftover unregister_savevm 2019-09-12 11:13:55 +01:00
nios2 Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
nvram sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
openrisc Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
pci Include sysemu/sysemu.h a lot less 2019-08-16 13:31:53 +02:00
pci-bridge numa: move numa global variable nb_numa_nodes into MachineState 2019-09-03 11:26:55 -03:00
pci-host hw/core: Add a config switch for the "or-irq" device 2019-08-20 09:11:17 +02:00
pcmcia Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ppc spapr: Render full FDT on ibm,client-architecture-support 2019-10-04 19:08:21 +10:00
rdma sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
riscv riscv: sifive_u: Update model and compatible strings in device tree 2019-09-17 08:42:49 -07:00
s390x s390: do not call memory_region_allocate_system_memory() multiple times 2019-09-30 13:51:50 +02:00
scsi trace: Remove trailing newline in events 2019-09-18 10:19:47 +01:00
sd trace: Remove trailing newline in events 2019-09-18 10:19:47 +01:00
semihosting Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
sh4 sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
smbios smbios:ipmi: Ignore IPMI devices with no fwinfo function 2019-09-20 14:08:10 -05:00
sparc sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
sparc64 hw/misc: Add a config switch for the "unimplemented" device 2019-08-20 09:11:17 +02:00
ssi aspeed/smc: Calculate checksum on normal DMA 2019-09-13 16:05:01 +01:00
timer aspeed/scu: Introduce a aspeed_scu_get_apb_freq() routine 2019-09-13 16:05:01 +01:00
tpm Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
tricore Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
unicore32 Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
usb usb-mtp: add sanity checks on rootdir 2019-08-29 07:31:12 +02:00
vfio vfio: fix a typo 2019-09-19 11:50:37 +02:00
virtio vhost: Fix memory region section comparison 2019-09-25 10:16:39 -04:00
watchdog sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
xen xen-bus: only set the xen device frontend state if it is missing 2019-09-24 12:21:29 +01:00
xenpv Include sysemu/sysemu.h a lot less 2019-08-16 13:31:53 +02:00
xtensa sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
Kconfig hw/core: Add a config switch for the "register" device 2019-08-20 09:11:05 +02:00
Makefile.objs Makefile: do not repeat $(CONFIG_SOFTMMU) in hw/Makefile.objs 2019-07-15 20:58:37 +02:00