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Alex Williamson 6f864e6ec8 vfio-pci: Lazy PCI option ROM loading 
During vfio-pci initfn, the device is not always in a state where the
option ROM can be read.  In the case of graphics cards, there's often
no per function reset, which means we have host driver state affecting
whether the option ROM is usable.  Ideally we want to move reading the
option ROM past any co-assigned device resets to the point where the
guest first tries to read the ROM itself.

To accomplish this, we switch the memory region for the option rom to
an I/O region rather than a memory mapped region.  This has the side
benefit that we don't waste KVM memory slots for a BAR where we don't
care about performance.  This also allows us to delay loading the ROM
from the device until the first read by the guest.  We then use the
PCI config space size of the ROM BAR when setting up the BAR through
QEMU PCI.

Another benefit of this approach is that previously when a user set
the ROM to a file using the romfile= option, we still probed VFIO for
the parameters of the ROM, which can result in dmesg errors about an
invalid ROM.  We now only probe VFIO to get the ROM contents if the
guest actually tries to read the ROM.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-10-02 12:52:38 -06:00
audio audio: remove CONFIG_MIXEMU configure option 2013-09-24 10:29:34 +02:00
backends aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
block qcow2: Remove useless count_contiguous_clusters() parameter 2013-09-27 17:22:43 +02:00
bsd-user *-user: Improve documentation for lock_user function 2013-09-20 20:09:24 +04:00
default-configs default-configs: Fix A9MP and A15MP config names 2013-08-20 14:54:32 +01:00
disas disas/ppc.c: Fix little endian disassembly 2013-09-02 10:06:41 +02:00
docs Merge remote-tracking branch 'mjt/trivial-patches' into staging 2013-09-23 11:52:55 -05:00
dtc@bc895d6d09 dtc: add submodule 2013-04-18 13:50:53 +02:00
fpu softfloat: Fix shift128Right for shift counts 64..127 2013-06-10 11:36:12 -05:00
fsdev fsdev: Fix potential memory leak 2013-07-09 13:38:56 -05:00
gdb-xml target-arm: Add AArch64 gdbstub support 2013-09-10 19:11:28 +01:00
hw vfio-pci: Lazy PCI option ROM loading 2013-10-02 12:52:38 -06:00
include pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
libcacard Merge remote-tracking branch 'stefanha/block' into staging 2013-09-23 11:53:05 -05:00
linux-headers linux-headers: update to 3.12-rc1 2013-09-20 12:38:48 +02:00
linux-user linux-user: Handle SOCK_CLOEXEC/NONBLOCK if unavailable on host 2013-09-24 10:47:07 +03:00
net net: Rename send_queue to incoming_queue 2013-09-06 17:01:26 +02:00
pc-bios Merge remote-tracking branch 'kraxel/seabios-1.7.3.2' into staging 2013-09-30 17:15:27 -05:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
po po: Update all *.po files 2013-08-07 12:48:00 -05:00
qapi OptsVisitor: don't try to flatten overlong integer ranges 2013-08-20 11:52:00 -04:00
qga qemu-ga: Install Windows VSS provider on `qemu-ga -s install' 2013-09-09 14:17:57 -05:00
qobject qdict: Extract qdict_extract_subqdict 2013-09-25 16:21:28 +02:00
qom cpu: Move cpu state syncs up into cpu_dump_state() 2013-09-20 12:37:52 +02:00
roms Merge remote-tracking branch 'kraxel/seabios-1.7.3.2' into staging 2013-09-30 17:15:27 -05:00
scripts roms: rewrite scripts/refresh-pxe-roms.sh 2013-09-30 09:44:35 +02:00
slirp slirp: clean up slirp_update_timeout 2013-09-17 12:26:05 +02:00
stubs Merge remote-tracking branch 'kiszka/queues/slirp' into staging 2013-09-17 10:01:24 -05:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-arm target-arm: Add AArch64 gdbstub support 2013-09-10 19:11:28 +01:00
target-cris tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-i386 Merge remote-tracking branch 'mjt/trivial-patches' into staging 2013-09-23 11:52:55 -05:00
target-lm32 target: Include softmmu_exec.h where forgotten 2013-09-02 09:08:30 -07:00
target-m68k tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-microblaze tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-mips cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
target-moxie target: Include softmmu_exec.h where forgotten 2013-09-02 09:08:30 -07:00
target-openrisc tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-ppc cpu: Move cpu state syncs up into cpu_dump_state() 2013-09-20 12:37:52 +02:00
target-s390x s390/ebcdic: Move conversion tables to header file 2013-09-20 13:55:30 +02:00
target-sh4 tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-sparc tcg: Change tcg_gen_exit_tb argument to uintptr_t 2013-09-02 09:08:30 -07:00
target-unicore32 target: Include softmmu_exec.h where forgotten 2013-09-02 09:08:30 -07:00
target-xtensa target: Include softmmu_exec.h where forgotten 2013-09-02 09:08:30 -07:00
tcg tcg-ppc64: Implement CONFIG_QEMU_LDST_OPTIMIZATION 2013-09-25 07:46:33 -07:00
tests qemu-iotests: Preallocated zero clusters in 061 2013-09-27 11:16:36 +02:00
trace trace: Add ftrace tracing backend 2013-05-03 13:58:09 +02:00
ui spice-core: Use g_strdup_printf instead of snprintf 2013-09-10 11:14:08 +02:00
util Merge remote-tracking branch 'stefanha/block' into staging 2013-09-23 11:53:05 -05:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore qemu-ga: Add configure options to specify path to Windows/VSS SDK 2013-09-09 14:17:56 -05:00
.gitmodules pc-bios: Update palcode-clipper 2013-07-18 08:17:42 -07:00
.mailmap Update mailmap 2013-09-05 09:40:31 -05:00
aio-posix.c aio / timers: Convert aio_poll to use AioContext timers' deadline 2013-08-22 19:10:28 +02:00
aio-win32.c aio-win32: replace incorrect AioHandler->opaque usage with ->e 2013-08-22 22:04:54 +02:00
arch_init.c pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
async.c aio / timers: aio_ctx_prepare sets timeout from AioContext timers 2013-08-22 19:10:28 +02:00
balloon.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
block-migration.c migration: omit drive ref as we have bdrv_ref now 2013-09-06 15:25:08 +02:00
block.c block: use DIV_ROUND_UP in bdrv_co_do_readv 2013-09-26 14:11:06 +02:00
blockdev-nbd.c nbd: use BlockDriverState refcnt 2013-09-06 15:25:08 +02:00
blockdev.c blockdev: do not default cache.no-flush to true 2013-09-20 19:27:44 +02:00
blockjob.c block: use BDS ref for block jobs 2013-09-06 15:25:08 +02:00
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 fix some common typos 2012-05-14 07:27:24 +02:00
CODING_STYLE Replace Qemu by QEMU in internal documentation 2012-04-07 13:58:25 +00:00
configure Merge remote-tracking branch 'rth/tcg-ppc-pull' into staging 2013-09-30 17:14:01 -05:00
COPYING
COPYING.LIB
coroutine-gthread.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
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 block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
cpu-exec.c tcg: Fix next_tb type in cpu_exec 2013-09-02 09:08:29 -07:00
cpus.c cpu: Replace qemu_for_each_cpu() 2013-09-03 12:25:55 +02:00
cputlb.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
device_tree.c device_tree: Add qemu_devtree_setprop_sized_cells() utility functions 2013-07-19 12:58:46 +01:00
device-hotplug.c hw: move device-hotplug.o to toplevel, compile it once 2013-03-01 13:57:13 +01:00
disas.c disas: Implement fallback to dump object code as hex 2013-08-24 07:26:45 +02:00
dma-helpers.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
dump.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
exec.c Merge remote-tracking branch 'mjt/trivial-patches' into staging 2013-09-23 11:52:55 -05:00
gdbstub.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
HACKING HACKING: Document vaddr type usage 2013-07-23 02:41:31 +02:00
hmp-commands.hx hmp: add interface hmp_snapshot_delete_blkdev_internal 2013-09-12 10:12:47 +02:00
hmp.c hmp: block-stream: fix typo 2013-09-17 11:10:47 -05:00
hmp.h hmp: add interface hmp_snapshot_delete_blkdev_internal 2013-09-12 10:12:47 +02:00
iohandler.c iohandler: switch to GPollFD 2013-02-21 16:17:31 -06:00
ioport.c memory: Provide separate handling of unassigned io ports accesses 2013-09-05 18:11:43 +02:00
kvm-all.c Merge remote-tracking branch 'qemu-kvm/uq/master' into staging 2013-09-23 11:52:49 -05:00
kvm-stub.c kvm irqfd: support direct msimessage to irq translation 2013-09-20 12:37:52 +02:00
LICENSE LICENSE: clarify 2013-08-12 09:15:12 -05:00
main-loop.c slirp: set mainloop timeout with more precise value 2013-09-17 12:26:05 +02:00
MAINTAINERS Merge remote-tracking branch 'kraxel/audio.1' into staging 2013-09-30 17:13:32 -05:00
Makefile Merge remote-tracking branch 'mjt/trivial-patches' into staging 2013-09-23 11:52:55 -05:00
Makefile.objs qemu-ga: Add Windows VSS provider and requester as DLL 2013-09-09 14:17:57 -05:00
Makefile.target build: do not use TARGET_ARCH 2013-06-14 15:33:10 +01:00
memory_mapping.c cpu: Use QTAILQ for CPU list 2013-09-03 12:25:55 +02:00
memory.c Revert "memory: Return -1 again on reads from unsigned regions" 2013-09-05 18:11:48 +02:00
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: constify ram_chunk_{index, start, end} 2013-09-24 13:22:50 +02:00
migration-tcp.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration-unix.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
migration.c migration: Fix debug print type 2013-09-24 13:22:50 +02:00
monitor.c QOM CPUState refactorings / X86CPU 2013-09-03 12:33:32 -05:00
nbd.c nbd: use BlockDriverState refcnt 2013-09-06 15:25:08 +02:00
os-posix.c Add option to mlock qemu and guest memory 2013-04-22 08:52:23 -05:00
os-win32.c qemu-timer: move timeBeginPeriod/timeEndPeriod to os-win32 2013-04-12 18:27:16 +02:00
page_cache.c remove some double-includes 2013-05-18 16:35:12 +04:00
qapi-schema.json qmp: add interface blockdev-snapshot-delete-internal-sync 2013-09-12 10:12:47 +02:00
qdev-monitor.c qemu-help: Sort devices by logical functionality 2013-07-29 10:37:09 -05:00
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 chardev: fix pty_chr_timer 2013-09-12 09:58:18 +02:00
qemu-coroutine-io.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
qemu-coroutine-lock.c block: Repair the throttling code. 2013-07-29 17:07:37 +02:00
qemu-coroutine-sleep.c aio / timers: convert block_job_sleep_ns and co_sleep_ns to new API 2013-08-22 19:14:24 +02:00
qemu-coroutine.c coroutine: add ./configure --disable-coroutine-pool 2013-09-12 10:12:48 +02:00
qemu-doc.texi doc: we use seabios, not bochs bios 2013-06-28 22:10:34 +04:00
qemu-img-cmds.hx block: Image file option amendment 2013-09-12 10:12:46 +02:00
qemu-img.c qemu-img: fix invalid JSON 2013-09-12 13:49:50 +02:00
qemu-img.texi block: Image file option amendment 2013-09-12 10:12:46 +02:00
qemu-io-cmds.c block: expect errors from bdrv_co_is_allocated 2013-09-06 15:25:09 +02:00
qemu-io.c block: Error parameter for open functions 2013-09-12 10:12:48 +02:00
qemu-log.c qemu-log: default to stderr for logging output 2013-02-26 13:31:47 -06:00
qemu-nbd.c block: Error parameter for open functions 2013-09-12 10:12:48 +02:00
qemu-nbd.texi Add -f FMT / --format FMT arg to qemu-nbd 2013-04-15 14:29:20 -05:00
qemu-options-wrapper.h vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
qemu-options.h vl.c: Move option generation logic into a wrapper file 2011-12-19 10:27:33 -06:00
qemu-options.hx block: Add iops_size to do the iops accounting for a given io size. 2013-09-06 15:25:07 +02:00
qemu-seccomp.c seccomp: add arch_prctl() to the syscall whitelist 2013-07-29 19:56:52 -05:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c qemu-timer: do not take the lock in timer_pending 2013-09-18 15:48:33 +02:00
qemu.nsi w32, w64: Add build rule for installer 2013-07-29 11:43:37 +02:00
qemu.sasl Fix command example in qemu.sasl 2013-07-19 12:52:03 +04:00
qmp-commands.hx qmp: add interface blockdev-snapshot-delete-internal-sync 2013-09-12 10:12:47 +02:00
qmp.c QMP: Add cpu-add command 2013-05-01 13:06:07 +02:00
qtest.c qtest: Fix FMT_timeval vs time_t 2013-09-02 09:08:29 -07:00
readline.c monitor: avoid use of global *cur_mon in readline_completion() 2013-08-30 07:41:14 -04:00
README
rules.mak configure: Support configuring C++ compiler 2013-09-09 14:17:56 -05:00
savevm.c savevm: fix wrong initialization by ram_control_load_hook 2013-09-24 13:22:08 +02:00
spice-qemu-char.c qemu-char: don't issue CHR_EVENT_OPEN in a BH 2013-06-10 11:38:37 -05:00
tcg-runtime.c tcg: Implement multiword multiply helpers 2013-02-23 17:25:28 +00:00
tci.c tci: Fix qemu-alpha on 32 bit hosts (wrong assertions) 2013-09-20 20:09:24 +04:00
thread-pool.c aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
tpm.c tpm.c: Don't try to put -1 in a variable of type TpmModel 2013-07-29 10:37:10 -05:00
trace-events Merge remote-tracking branch 'mjt/trivial-patches' into staging 2013-09-23 11:52:55 -05:00
translate-all.c translate-all: Fix formatting of dump output 2013-09-20 20:09:24 +04:00
translate-all.h cputlb: Pass CPUState to cpu_unlink_tb() 2013-02-16 14:51:00 +01:00
user-exec.c linux-user: fix segmentation fault passing with h2g(x) != x 2013-07-23 17:28:28 +03:00
VERSION Open up 1.7 development branch 2013-08-15 15:41:13 -05:00
version.rc w32: Add an icon resource 2013-08-27 14:21:16 +02:00
vl.c pc,pci,virtio fixes and cleanups 2013-09-30 17:15:01 -05:00
xbzrle.c Move XBZRLE encoding code to a separate file to allow testing 2013-02-01 08:32:20 +01:00
xen-all.c xen: Fix vcpu initialization. 2013-09-25 16:41:48 +00:00
xen-mapcache.c hw: move headers to include/ 2013-04-08 18:13:10 +02:00
xen-stub.c pc: Initializing ram_memory under Xen. 2013-09-09 16:22:19 +00:00

README 

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

- QEMU team