xemu/hw
Kevin Wolf 307a5f60eb block: Add qdev_prop_drive_iothread property type
Some qdev block devices have support for iothreads and take care of the
AioContext they are running in, but most devices don't know about any of
this. For the latter category, the qdev drive property must make sure
that their BlockBackend is in the main AioContext.

Unfortunately, while the current code just does the same thing for
devices that do support iothreads, this is not correct and it would show
as soon as we actually try to keep a consistent AioContext assignment
across all nodes and users of a block graph subtree: If a node is
already in a non-default AioContext because of one of its users,
attaching a new device should still be possible if that device can work
in the same AioContext. Switching the node back to the main context
first and only then into the device AioContext causes failure (because
the existing user wouldn't allow the switch to the main context).

So devices that support iothreads need a different kind of drive
property that leaves the node in its current AioContext, but by using
this type, the device promises to check later that it can work with this
context.

This patch adds the qdev infrastructure that allows devices to signal
that they handle iothreads and qdev should leave the AioContext alone.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2019-06-04 15:22:22 +02:00
..
9pfs trace-events: Fix attribution of trace points to source 2019-03-22 16:18:07 +00:00
acpi acpi/pcihp: Add a few more trace points related to unplug 2019-05-20 18:40:02 -04:00
adc kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
alpha * Kconfig improvements (msi_nonbroken, imply for default PCI devices) 2019-03-28 09:18:53 +00:00
arm imx25-pdk: create ds1338 for qtest inside the test 2019-06-03 14:03:02 +02:00
audio Revert "audio: fix pc speaker init" 2019-04-01 08:53:40 +02:00
block block: Add BlockBackend.ctx 2019-06-04 15:22:22 +02:00
bt kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
char Mostly bugfixes and cleanups, the most important being 2019-05-17 16:17:34 +01:00
core block: Add qdev_prop_drive_iothread property type 2019-06-04 15:22:22 +02:00
cpu kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
cris cris-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
display hw/display: add vhost-user-vga & gpu-pci 2019-05-29 06:30:45 +02:00
dma hw/dma: Compile the bcm2835_dma device as common object 2019-04-29 17:36:03 +01:00
gpio Pull request 2019-03-25 17:01:10 +00:00
hppa * Kconfig improvements (msi_nonbroken, imply for default PCI devices) 2019-03-28 09:18:53 +00:00
hyperv hyperv: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
i2c hw/arm: Express dependencies of realview, versatile and vexpress with Kconfig 2019-05-13 09:36:31 +02:00
i386 q35: Revert to kernel irqchip 2019-06-03 14:03:03 +02:00
ide block: Add BlockBackend.ctx 2019-06-04 15:22:22 +02:00
input hw/input: Add a CONFIG_PS2 switch for the ps2.c file 2019-05-15 11:56:53 +02:00
intc spapr/xive: fix multiple resets when using the 'dual' interrupt mode 2019-05-29 11:39:47 +10:00
ipack build: convert pci.mak to Kconfig 2019-03-07 21:45:53 +01:00
ipmi ipmi: express dependencies with kconfig 2019-03-07 21:45:53 +01:00
isa hw/ppc/40p: Move the MC146818 RTC to the board where it belongs 2019-05-29 11:39:44 +10:00
lm32 pflash: Clean up after commit 368a354f02, part 2 2019-03-11 22:53:44 +01:00
m68k m68k-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
mem trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
microblaze hw/microblaze/zynqmp: Use object_initialize_child for correct ref. counting 2019-05-24 15:29:02 -03:00
mips Various testing updates 2019-05-28 17:38:32 +01:00
misc edu: uses uint64_t in dma operation 2019-06-03 14:03:01 +02:00
moxie moxie-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
net Mostly bugfixes and cleanups, the most important being 2019-05-17 16:17:34 +01:00
nios2 Add generic Nios II board. 2019-04-29 16:09:51 +01:00
nvram hw/nvram/fw_cfg: Store 'reboot-timeout' as little endian 2019-05-23 14:10:31 +02:00
openrisc target/openrisc: Fix LGPL information in the file headers 2019-05-08 17:45:54 +02:00
pci pci: msix: move 'MSIX_CAP_LENGTH' to header file 2019-05-22 17:35:27 +02:00
pci-bridge pci: Simplify pci_bus_is_root() 2019-05-20 18:40:02 -04:00
pci-host hw/pci-host: Use object_initialize_child for correct reference counting 2019-05-02 16:56:33 +02:00
pcmcia kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
ppc ppc/pnv: add dummy XSCOM registers for PRD initialization 2019-05-29 11:39:47 +10:00
rdma Clean up header guards that don't match their file name 2019-05-13 08:58:55 +02:00
riscv riscv: spike: Add a generic spike machine 2019-05-24 12:09:24 -07:00
s390x s390/css: handle CCW_FLAG_SKIP 2019-05-17 08:16:02 +02:00
scsi block: Add BlockBackend.ctx 2019-06-04 15:22:22 +02:00
sd Clean up header guards that don't match their file name 2019-05-13 08:58:55 +02:00
semihosting semihosting: enable chardev backed output for console 2019-05-28 10:28:50 +01:00
sh4 hw/usb/hcd-ohci: Move PCI-related code into a separate file 2019-05-02 08:42:17 +02:00
smbios kconfig: introduce kconfig files 2019-03-07 21:45:53 +01:00
sparc hw/sparc: Implement fw_cfg_arch_key_name() 2019-05-23 14:10:31 +02:00
sparc64 hw/sparc64: Implement fw_cfg_arch_key_name() 2019-05-23 14:10:31 +02:00
ssi hw/ssi/xilinx_spips: Avoid variable length array 2019-04-29 17:35:57 +01:00
timer grlib, gptimer: get rid of the old-style create function 2019-05-17 09:17:11 +01:00
tpm Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
tricore - qtest fixes 2019-03-08 16:31:34 +00:00
unicore32 unicore32-softmmu.mak: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
usb usb-hub: emulate per port power switching 2019-05-29 07:04:05 +02:00
vfio hw/display/ramfb: initialize fw-config space with xres/ yres 2019-05-24 09:10:29 +02:00
virtio vga: add vhost-user-gpu. 2019-05-30 13:10:00 +01:00
watchdog trace-events: Fix attribution of trace points to source 2019-03-22 16:18:07 +00:00
xen trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
xenpv xen: Replace few mentions of xend by libxl 2019-01-14 13:45:40 +00:00
xtensa Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
Kconfig semihosting: introduce CONFIG_SEMIHOSTING 2019-05-28 10:28:50 +01:00
Makefile.objs semihosting: move semihosting configuration into its own directory 2019-05-28 10:28:50 +01:00