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Original Xbox Emulator for Windows, macOS, and Linux (Active Development)
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Alexey Kardashevskiy 9a321e9234 spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB 
Currently SPAPR PHB keeps track of all allocated MSI (here and below
MSI stands for both MSI and MSIX) interrupt because
XICS used to be unable to reuse interrupts. This is a problem for
dynamic MSI reconfiguration which happens when guest reloads a driver
or performs PCI hotplug. Another problem is that the existing
implementation can enable MSI on 32 devices maximum
(SPAPR_MSIX_MAX_DEVS=32) and there is no good reason for that.

This makes use of new XICS ability to reuse interrupts.

This reorganizes MSI information storage in sPAPRPHBState. Instead of
static array of 32 descriptors (one per a PCI function), this patch adds
a GHashTable when @config_addr is a key and (first_irq, num) pair is
a value. GHashTable can dynamically grow and shrink so the initial limit
of 32 devices is gone.

This changes migration stream as @msi_table was a static array while new
@msi_devs is a dynamic hash table. This adds temporary array which is
used for migration, it is populated in "spapr_pci"::pre_save() callback
and expanded into the hash table in post_load() callback. Since
the destination side does not know the number of MSI-enabled devices
in advance and cannot pre-allocate the temporary array to receive
migration state, this makes use of new VMSTATE_STRUCT_VARRAY_ALLOC macro
which allocates the array automatically.

This resets the MSI configuration space when interrupts are released by
the ibm,change-msi RTAS call.

This fixed traces to be more informative.

This changes vmstate_spapr_pci_msi name from "...lsi" to "...msi" which
was incorrect by accident. As the internal representation changed,
thus bumps migration version number.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[agraf: drop g_malloc_n usage]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:27 +02:00
audio audio: Drop superfluous conditionals around g_free() 2014-06-13 12:34:54 +02:00
backends rng-random: NULL check not needed before g_free() 2014-06-24 20:01:24 +04:00
block Fix new typos (found by codespell) 2014-06-24 20:01:24 +04:00
bsd-user bsd-user: Fix syscall format, add strace support for more syscalls 2014-06-11 00:25:06 +01:00
default-configs pc: implement pc-dimm device abstraction 2014-06-19 16:41:47 +03:00
disas disas/libvixl: Update to libvixl 1.4 2014-05-13 16:09:35 +01:00
docs qapi event: convert QUORUM events 2014-06-23 11:12:28 -04:00
dtc@bc895d6d09 dtc: add submodule 2013-04-18 13:50:53 +02:00
fpu fpu: softfloat: drop INLINE macro 2014-06-23 11:00:12 -04:00
fsdev virtfs-proxy-helper: fix call to accept 2014-04-28 08:55:32 +04:00
gdb-xml target-arm: Support fp registers in gdb stub 2013-12-17 19:42:32 +00:00
hw spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB 2014-06-27 13:48:27 +02:00
include spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB 2014-06-27 13:48:27 +02:00
libcacard vscclient: Add required headers to fix build on FreeBSD 2014-06-24 20:01:24 +04:00
libdecnumber libdecnumber: Fix decNumberSetBCD 2014-06-16 13:24:29 +02:00
linux-headers linux-headers: update linux headers to kvm/next 2014-06-16 13:24:41 +02:00
linux-user linux-user: Support HWCAP2 in PowerPC 2014-06-27 13:48:22 +02:00
net Add the vhost-user netdev backend to the command line 2014-06-19 18:44:18 +03:00
pc-bios pc-bios/s390-ccw: update s390-ccw.img binary 2014-06-23 14:19:45 +02:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
po po: add proper Language: tags to .po files 2014-04-28 08:55:32 +04:00
qapi Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
qga qga: Fix handle fd leak in acquire_privilege() 2014-06-03 15:07:59 -05:00
qobject json-lexer: fix escaped backslash in single-quoted string 2014-06-23 11:01:24 -04:00
qom qom: introduce object_property_get_enum and object_property_get_uint16List 2014-06-19 18:44:19 +03:00
roms Update OpenBIOS images 2014-06-20 23:59:19 +01:00
scripts migration/next for 20140623 2014-06-24 15:33:42 +01:00
slirp Increase maximum number of session of the internal TFTP server. 2014-06-24 20:01:24 +04:00
stubs Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-arm Fix new typos (found by codespell) 2014-06-24 20:01:24 +04:00
target-cris target-cris/translate.c: Remove _t_gen_mov_TN_env and _t_gen_mov_env_TN 2014-06-09 01:04:44 +02:00
target-i386 target-i386: Broadwell CPU model 2014-06-25 23:54:57 +02:00
target-lm32 vl: allow other threads to do qemu_system_vmstop_request 2014-06-23 16:36:13 +08:00
target-m68k softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-microblaze target-microblaze: Delete unused sign_extend() function 2014-06-10 19:39:34 +04:00
target-mips target-mips: copy CP0_Config1 into DisasContext 2014-06-20 22:14:13 +02:00
target-moxie softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-openrisc softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-ppc target-ppc: Add support for POWER8 pvr 0x4D0000 2014-06-27 13:48:24 +02:00
target-s390x target-s390x: Remove unused ld_code6() function 2014-06-24 20:01:24 +04:00
target-sh4 softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-sparc softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
target-unicore32 target-unicore: Remove unused functions 2014-06-24 20:01:24 +04:00
target-xtensa softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
tcg tcg: mark tcg_out* and tcg_patch* with attribute 'unused' 2014-06-24 20:01:24 +04:00
tests Fix new typos (found by codespell) 2014-06-24 20:01:24 +04:00
trace glib-compat.h: add new thread API emulation on top of pre-2.31 API 2014-06-10 07:44:01 +02:00
ui qemu-char: introduce qemu_chr_alloc 2014-06-23 11:12:28 -04:00
util Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore configure: Put tempfiles in a subdir of the build directory 2014-05-24 00:34:38 +04:00
.gitmodules PPC: Add u-boot firmware for e500 2014-06-16 13:24:35 +02:00
.mailmap Update mailmap 2013-09-05 09:40:31 -05:00
.travis.yml trace: Multi-backend tracing 2014-06-09 15:43:40 +02:00
aio-posix.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
aio-win32.c aio: make aio_poll(ctx, true) block with no fds 2013-12-06 16:53:51 +01:00
arch_init.c migration: catch unknown flags in ram_load 2014-06-16 04:55:27 +02:00
async.c aio: fix qemu_bh_schedule() bh->ctx race condition 2014-06-04 09:56:06 +02:00
balloon.c qapi event: convert BALLOON_CHANGE 2014-06-23 11:12:28 -04:00
block-migration.c block: fix wrong order in live block migration setup 2014-06-04 11:22:39 +02:00
block.c block.c: Remove useless 'buf' variable 2014-06-24 20:01:24 +04:00
blockdev-nbd.c nbd: Close socket on negotiation failure. 2014-05-24 00:07:29 +04:00
blockdev.c qapi event: convert other BLOCK_JOB events 2014-06-23 11:12:28 -04:00
blockjob.c qapi event: convert other BLOCK_JOB events 2014-06-23 11:12:28 -04:00
bt-host.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
bt-vhci.c sysemu: avoid proliferation of include/ subdirectories 2013-04-15 18:19:25 +02:00
Changelog Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
CODING_STYLE CODING_STYLE: Section about mixed declarations 2014-03-27 19:22:49 +04:00
configure configure: Enable TPM by default, add --disable-tpm 2014-06-24 20:01:24 +04:00
COPYING
COPYING.LIB
coroutine-gthread.c glib-compat.h: add new thread API emulation on top of pre-2.31 API 2014-06-10 07:44:01 +02:00
coroutine-sigaltstack.c Merge remote-tracking branch 'kwolf/for-anthony' into staging 2013-02-26 07:44:39 -06:00
coroutine-ucontext.c Fix warnings suppressors to honor --disable-werror 2013-04-17 10:28:04 -05:00
coroutine-win32.c coroutine-win32.c: Add noinline attribute to work around gcc bug 2014-06-26 14:08:14 +01:00
cpu-exec.c cpu: make CPU_INTERRUPT_RESET available on all targets 2014-05-13 13:21:51 +02:00
cpus.c qapi event: convert STOP 2014-06-23 11:01:25 -04:00
cputlb.c softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
device_tree.c device_tree: qemu_fdt_setprop: Rename val_array arg 2013-12-20 01:58:12 +01:00
device-hotplug.c blockdev: Remove unused DriveInfo reference count 2014-06-16 17:23:19 +08:00
disas.c monitor: QEMU Monitor Instruction Disassembly Incorrect for PowerPC LE Mode 2014-06-16 13:24:26 +02:00
dma-helpers.c dma-helpers: avoid calling dma_bdrv_unmap() twice 2014-05-24 00:28:43 +04:00
dump.c dump: Make DumpState and endian conversion routines available for arch-specific dump code 2014-06-16 13:24:36 +02:00
exec.c tcg-ppc: Merge cache-utils into the backend 2014-06-23 07:32:30 -07:00
gdbstub.c exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argument 2014-03-13 19:20:48 +01:00
HACKING HACKING: Document vaddr type usage 2013-07-23 02:41:31 +02:00
hmp-commands.hx Add the vhost-user netdev backend to the command line 2014-06-19 18:44:18 +03:00
hmp.c Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
hmp.h hmp: add info memdev 2014-06-19 18:44:21 +03:00
iohandler.c iohandler.c: Properly initialize sigaction struct 2014-05-24 00:07:29 +04:00
ioport.c portio: Allow to mark portio lists as coalesced MMIO flushing 2013-10-17 17:24:15 +02:00
iothread.c iothread: make IOThread struct definition public 2014-04-04 20:48:02 +02:00
kvm-all.c Merge remote-tracking branch 'remotes/kvm/uq/master' into staging 2014-06-20 19:25:18 +01:00
kvm-stub.c Add kvm_eventfds_enabled function 2014-06-19 16:41:54 +03:00
LICENSE LICENSE: clarify 2013-08-12 09:15:12 -05:00
main-loop.c main-loop: Suppress "I/O thread spun" warnings for qtest 2014-03-13 21:36:50 +01:00
MAINTAINERS Merge remote-tracking branch 'remotes/kvm/uq/master' into staging 2014-06-20 19:25:18 +01:00
Makefile build-sys: introduce install-prog macro to install&strip binaries and use it 2014-06-24 20:01:24 +04:00
Makefile.objs qapi script: add event support 2014-06-23 11:01:25 -04:00
Makefile.target build-sys: introduce install-prog macro to install&strip binaries and use it 2014-06-24 20:01:24 +04:00
memory_mapping.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
memory.c hostmem: add property to map memory with MAP_SHARED 2014-06-19 18:44:20 +03:00
migration-exec.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-fd.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-rdma.c rdma: bug fixes 2014-06-23 19:09:50 +02:00
migration-tcp.c Coverity: Fix failure path for qemu_accept in migration 2014-05-05 22:15:03 +02:00
migration-unix.c Coverity: Fix failure path for qemu_accept in migration 2014-05-05 22:15:03 +02:00
migration.c migration: catch unknown flags in ram_load 2014-06-16 04:55:27 +02:00
module-common.c module: implement module loading 2014-02-20 13:14:18 +01:00
monitor.c Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
nbd.c nbd: Miscellaneous typo fixes. 2014-05-24 00:07:29 +04:00
numa.c numa: handle mmaped memory allocation failure correctly 2014-06-19 18:44:22 +03:00
os-posix.c oslib-posix: Fix build on FreeBSD 2014-03-13 14:34:16 +00:00
os-win32.c util: Split out exec_dir from os_find_datadir 2014-02-20 13:12:54 +01:00
page_cache.c migration: Plug memory leak in migrate-set-cache-size command 2014-06-10 19:54:43 +04:00
qapi-event.json qapi event: convert QUORUM events 2014-06-23 11:12:28 -04:00
qapi-schema.json Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging 2014-06-24 13:06:13 +01:00
qdev-monitor.c qdev: Implement named GPIOs 2014-05-28 17:36:21 +02:00
qdict-test-data.txt
qemu-bridge-helper.c qemu-bridge-helper: force usage of a very high MAC address for the bridge 2013-03-28 12:58:52 -05:00
qemu-char.c qemu-char: initialize chr_write_lock 2014-06-26 13:13:54 +01:00
qemu-coroutine-io.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
qemu-coroutine-lock.c coroutine: remove qemu_co_queue_wait_insert_head 2013-12-02 17:11:49 +01:00
qemu-coroutine-sleep.c coroutine: add co_aio_sleep_ns() to allow sleep in block drivers 2013-10-30 12:22:09 +01:00
qemu-coroutine.c coroutine: add ./configure --disable-coroutine-pool 2013-09-12 10:12:48 +02:00
qemu-doc.texi doc: grammify "allows to" 2014-04-18 10:33:36 +04:00
qemu-file.c Make qemu_peek_buffer loop until it gets it's data 2014-05-05 22:15:03 +02:00
qemu-img-cmds.hx qemu-img: add -l for snapshot in convert 2013-12-04 15:19:00 +01:00
qemu-img.c cleanup QEMUOptionParameter 2014-06-16 17:23:21 +08:00
qemu-img.texi qemu-img: Document check exit codes 2014-06-04 11:30:32 +02:00
qemu-io-cmds.c qemu-io-cmds: Fixed typo in example for writev. 2014-03-19 09:39:41 +01:00
qemu-io.c trace: Multi-backend tracing 2014-06-09 15:43:40 +02:00
qemu-log.c qemu-log: default to stderr for logging output 2013-02-26 13:31:47 -06:00
qemu-nbd.c qemu-nbd: Don't use qerror_report() 2014-05-28 14:28:46 +02:00
qemu-nbd.texi nbd: Miscellaneous typo fixes. 2014-05-24 00:07:29 +04:00
qemu-options-wrapper.h
qemu-options.h
qemu-options.hx migration: dump vmstate info as a json file for static analysis 2014-06-23 19:14:50 +02:00
qemu-seccomp.c seccomp: add shmctl(), mlock(), and munlock() to the syscall whitelist 2014-04-25 14:52:03 -03:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c vl.c: remove init_clocks call from main 2014-05-09 20:57:32 +02:00
qemu.nsi nsis: Improved support for parallel installation of 32 and 64 bit code 2013-11-07 07:02:44 +01:00
qemu.sasl sasl: Avoid 'Could not find keytab file' in syslog 2014-03-15 13:54:18 +04:00
qmp-commands.hx qmp: add query-acpi-ospm-status command 2014-06-19 18:44:22 +03:00
qmp.c qmp: add query-acpi-ospm-status command 2014-06-19 18:44:22 +03:00
qtest.c qtest: fix hex2nib for capital characters 2014-06-10 19:39:34 +04:00
README Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
rules.mak build-sys: introduce install-prog macro to install&strip binaries and use it 2014-06-24 20:01:24 +04:00
savevm.c savevm: check vmsd for migratability status 2014-06-25 23:54:57 +02:00
softmmu_template.h softmmu: move softmmu_template.h out of include/ 2014-06-05 16:10:33 +02:00
spice-qemu-char.c qemu-char: introduce qemu_chr_alloc 2014-06-23 11:12:28 -04:00
tcg-runtime.c tcg: Push tcg-runtime routines into exec/helper-* 2014-05-28 09:33:54 -07:00
tci.c Merge remote-tracking branch 'remotes/bonzini/softmmu-smap' into staging 2014-06-05 21:06:14 +01:00
thread-pool.c aio: Fix use-after-free in cancellation path 2014-05-28 14:28:46 +02:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
tpm.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
trace-events spapr_pci: Use XICS interrupt allocator and do not cache interrupts in PHB 2014-06-27 13:48:27 +02:00
translate-all.c Fix new typos (found by codespell) 2014-06-24 20:01:24 +04:00
translate-all.h translate-all: Change tb_check_watchpoint() argument to CPUState 2014-03-13 19:20:48 +01:00
user-exec.c softmmu: introduce cpu_ldst.h 2014-06-05 16:10:33 +02:00
VERSION Open 2.1 development tree 2014-04-17 20:39:32 +01:00
version.rc Use qemu-project.org domain name 2013-10-11 09:34:56 -07:00
vl.c migration/next for 20140623 2014-06-24 15:33:42 +01:00
vmstate.c vmstate: Add preallocation for migrating arrays (VMS_ALLOC flag) 2014-06-27 13:48:27 +02:00
xbzrle.c xbzrle.c: Avoid undefined behaviour with signed arithmetic 2014-04-18 10:33:36 +04:00
xen-common-stub.c xen: factor out common functions 2014-05-07 16:16:43 +00:00
xen-common.c xen: factor out common functions 2014-05-07 16:16:43 +00:00
xen-hvm-stub.c xen-hvm: Fix xen_hvm_init() to adjust pc memory layout 2014-06-23 17:50:04 +03:00
xen-hvm.c xen-hvm: Handle machine opt max-ram-below-4g 2014-06-23 18:02:55 +03:00
xen-mapcache.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org

- QEMU team