ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
xemu/hw
History
David Woodhouse 4a5780f520 hw/xen: fix XenStore watch delivery to guest 
When fire_watch_cb() found the response buffer empty, it would call
deliver_watch() to generate the XS_WATCH_EVENT message in the response
buffer and send an event channel notification to the guest… without
actually *copying* the response buffer into the ring. So there was
nothing for the guest to see. The pending response didn't actually get
processed into the ring until the guest next triggered some activity
from its side.

Add the missing call to put_rsp().

It might have been slightly nicer to call xen_xenstore_event() here,
which would *almost* have worked. Except for the fact that it calls
xen_be_evtchn_pending() to check that it really does have an event
pending (and clear the eventfd for next time). And under Xen it's
defined that setting that fd to O_NONBLOCK isn't guaranteed to work,
so the emu implementation follows suit.

This fixes Xen device hot-unplug.

Cc: qemu-stable@nongnu.org
Fixes: 0254c4d19d ("hw/xen: Add xenstore wire implementation and implementation stubs")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
 		2023-11-06 10:03:45 +00:00
..
9pfs migration: simplify blockers 2023-10-20 08:51:41 +02:00
acpi virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
adc meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
alpha hw/alpha: Use MachineClass->default_nic in the alpha machine 2023-05-26 09:10:49 +02:00
arm hw/arm: xlnx-versal-virt: Add AMD/Xilinx TRNG device 2023-11-02 14:42:03 +00:00
audio hw/audio/es1370: trace lost interrupts 2023-10-10 12:31:05 +00:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block virtio-blk: remove batch notification BH 2023-10-31 15:42:17 +01:00
char target-arm queue: 2023-11-03 10:04:12 +08:00
core target-arm queue: 2023-11-03 10:04:12 +08:00
cpu hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
cxl hw/cxl: Fix local variable shadowing of cap_hdrs 2023-10-06 10:56:54 +02:00
display target-arm queue: 2023-11-03 10:04:12 +08:00
dma hw/dma: Declare link using static DEFINE_PROP_LINK() macro 2023-10-19 23:13:28 +02:00
gpio hw/gpio/nrf51: implement DETECT signal 2023-08-22 17:30:59 +01:00
hppa hw/hppa: Add new HP C3700 machine 2023-10-20 00:47:38 +02:00
hyperv win32: replace closesocket() with close() wrapper 2023-03-13 15:39:31 +04:00
i2c target-arm queue: 2023-11-03 10:04:12 +08:00
i386 hw/xen: fix XenStore watch delivery to guest 2023-11-06 10:03:45 +00:00
ide migration: Use vmstate_register_any() for isa-ide 2023-11-01 16:13:58 +01:00
input target-arm queue: 2023-11-03 10:04:12 +08:00
intc Migration Pull request (20231102) 2023-11-03 09:57:32 +08:00
ipack meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
ipmi hw/ipmi: Don't call vmstate_register() from instance_init() functions 2023-11-01 16:13:58 +01:00
isa virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
loongarch hw/acpi: Realize ACPI_GED sysbus device before accessing it 2023-10-19 23:13:28 +02:00
m68k m68k: Instantiate the ESP SCSI controller for the NeXTcube machine 2023-11-02 07:26:06 +01:00
mem memory-device,vhost: Support automatic decision on the number of memslots 2023-10-12 14:15:22 +02:00
microblaze hw/microblaze: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
mips virtio,pc,pci: features, cleanups 2023-10-23 14:45:29 -07:00
misc hw/misc: Introduce AMD/Xilix Versal TRNG device 2023-11-02 14:42:03 +00:00
net migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
nios2 hw/nios2: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
nubus trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
nvme hw/nvme: Clean up local variable shadowing in nvme_ns_init() 2023-09-29 10:07:20 +02:00
nvram migration: Use vmstate_register_any() for eeprom93xx 2023-11-01 16:13:58 +01:00
openrisc *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
pci migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
pci-bridge hw/pci-bridge/cxl-upstream: Add serial number extended capability support 2023-10-04 18:15:06 -04:00
pci-host target/hppa: Add emulation of a C3700 HP-PARISC workstation 2023-10-20 06:46:26 -07:00
pcmcia hw/pcmcia/pxa2xx: Inline pxa2xx_pcmcia_init() 2023-10-27 12:48:57 +01:00
ppc migration: Hack to maintain backwards compatibility for ppc 2023-11-01 16:13:58 +01:00
rdma hw/rdma/vmw/pvrdma_cmd: Use correct struct in query_port() 2023-10-21 15:00:22 +03:00
remote migration: simplify blockers 2023-10-20 08:51:41 +02:00
riscv target/riscv: move KVM only files to kvm subdir 2023-10-12 12:20:24 +10:00
rtc hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
rx hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
s390x hw/s390x/s390-stattrib: Don't call register_savevm_live() during instance_init() 2023-11-01 16:13:58 +01:00
scsi cpr: relax vhost migration blockers 2023-11-01 16:13:59 +01:00
sd hw/sd/pxa2xx: Do not open-code sysbus_create_simple() 2023-10-27 12:48:57 +01:00
sensor hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
sh4 hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
smbios hw/acpi: changes towards enabling -Wshadow=local 2023-09-29 10:07:18 +02:00
sparc other architectures: spelling fixes 2023-07-25 17:14:07 +03:00
sparc64 hw/sparc64/ebus: Access memory regions via pci_address_space_io() 2023-10-19 23:13:28 +02:00
ssi hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
timer migration: Use vmstate_register_any() 2023-11-01 16:13:58 +01:00
tpm hw/tpm: spelling fixes 2023-09-20 07:54:34 +03:00
tricore hw/tricore: Log failing test in testdevice 2023-09-29 08:28:02 +02:00
ufs hw/ufs: Modify lu.c to share codes with SCSI subsystem 2023-10-30 10:28:04 +09:00
usb hw/usb: Silence compiler warnings in USB code when compiling with -Wshadow 2023-10-06 13:27:48 +02:00
vfio migration: simplify notifiers 2023-10-20 08:51:41 +02:00
virtio cpr: relax vhost migration blockers 2023-11-01 16:13:59 +01:00
watchdog hw/watchdog/wdt_imx2: Trace timer activity 2023-11-02 13:36:45 +00:00
xen hw/xen: cleanup sourcesets 2023-10-18 10:01:01 +02:00
xenpv hw/xenpv: Initialize Xen backend operations 2023-03-24 14:52:14 +00:00
xtensa trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value 2023-09-08 13:08:52 +03:00
Kconfig hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00
meson.build hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00