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9cf4fd872d
qemu/hw
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Greg Kurz 9cf4fd872d virtio: Clarify MR transaction optimization 
The device model batching its ioeventfds in a single MR transaction is
an optimization. Clarify this in virtio-scsi, virtio-blk and generic
virtio code. Also clarify that the transaction must commit before
closing ioeventfds so that no one is tempted to merge the loops
in the start functions error path and in the stop functions.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <162125799728.1394228.339855768563326832.stgit@bahia.lan>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-02 11:13:39 -04:00
..
9pfs docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
acpi hw/acpi: Provide function acpi_ghes_present() 2021-06-21 16:49:37 +01:00
adc docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
alpha hw/alpha: Provide a PCI-ISA bridge device node 2021-06-28 07:27:32 -07:00
arm target-arm queue: 2021-06-16 17:02:30 +01:00
audio hw/audio/sb16: Restrict I/O sampling rate range for command 41h/42h 2021-06-24 11:42:54 +02:00
avr hw/avr/atmega.c: use the avr51 cpu for atmega1280 2021-05-13 19:11:42 +02:00
block virtio: Clarify MR transaction optimization 2021-07-02 11:13:39 -04:00
char hw/char/ibex_uart: Make the register layout private 2021-06-24 05:00:12 -07:00
core hw/nvme patches 2021-06-30 21:09:27 +01:00
cpu cpu/core: Fix "help" of CPU core device types 2021-04-09 16:05:16 -04:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
display vhost: Distinguish errors in vhost_dev_get_config() 2021-06-30 13:18:42 +02:00
dma docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
gpio misc: Correct relative include path 2021-06-05 21:10:42 +02:00
hppa docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
hyperv qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
i2c docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
i386 * Some Meson test conversions 2021-06-28 21:04:22 +01:00
ide docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
input vhost: Distinguish errors in vhost_dev_get_config() 2021-06-30 13:18:42 +02:00
intc hw/intc/armv7m_nvic: Remove stale comment 2021-06-15 16:18:48 +01:00
ipack Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ipmi hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
isa hw/block/fdc: Extract ISA floppy controllers to fdc-isa.c 2021-06-25 08:53:28 -04:00
m68k softmmu/memory: Pass ram_flags to memory_region_init_ram_shared_nomigrate() 2021-06-15 20:27:38 +02:00
mem docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
microblaze Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
mips hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c 2021-06-25 08:53:28 -04:00
misc softmmu/memory: Pass ram_flags to qemu_ram_alloc_from_fd() 2021-06-15 20:27:38 +02:00
net vhost: Distinguish errors in vhost_dev_get_config() 2021-06-30 13:18:42 +02:00
nios2 Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
nubus hw: Do not include hw/sysbus.h if it is not necessary 2021-05-02 17:24:50 +02:00
nvme hw/nvme: fix pin-based interrupt behavior (again) 2021-06-29 07:18:10 +02:00
nvram docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
openrisc Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
pci docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
pci-bridge Kconfig: Compile PXB for ARM_VIRT 2021-01-17 06:42:54 -05:00
pci-host docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
pcmcia hw/pcmcia: Do not register PCMCIA type if not required 2021-05-02 17:24:50 +02:00
ppc ppc/pef.c: initialize cgs->ready in kvmppc_svm_init() 2021-06-03 18:10:31 +10:00
rdma docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
remote multi-process: Initialize variables declared with g_auto* 2021-05-21 15:43:57 +01:00
riscv hw/riscv: OpenTitan: Connect the mtime and mtimecmp timer 2021-06-24 05:00:13 -07:00
rtc docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
rx hw/rx/rx-gdbsim: Do not accept invalid memory size 2021-05-03 10:07:41 +02:00
s390x virtio: disable ioeventfd for record/replay 2021-07-02 10:20:13 -04:00
scsi virtio: Clarify MR transaction optimization 2021-07-02 11:13:39 -04:00
sd docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
sh4 Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
smbios hw/smbios: support for type 41 (onboard devices extended information) 2021-05-14 10:26:18 -04:00
sparc hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c 2021-06-25 08:53:28 -04:00
sparc64 hw/block/fdc: Extract ISA floppy controllers to fdc-isa.c 2021-06-25 08:53:28 -04:00
ssi Trivial patches pull request 20210503 2021-05-05 13:52:00 +01:00
timer hw/timer: Initial commit of Ibex Timer 2021-06-24 05:00:12 -07:00
tpm docs: fix references to docs/specs/tpm.rst 2021-06-02 06:51:09 +02:00
tricore hw/tricore: Add testdevice for tests in tests/tcg/ 2021-05-18 09:36:21 +01:00
usb configure, meson: convert libusbredir detection to meson 2021-06-25 10:54:12 +02:00
vfio s390x/css: Add passthrough IRB 2021-06-21 08:48:21 +02:00
virtio virtio: Clarify MR transaction optimization 2021-07-02 11:13:39 -04:00
watchdog docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
xen docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
xenpv meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
xtensa Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
Kconfig hw/nvme: move nvme emulation out of hw/block 2021-05-17 09:19:00 +02:00
meson.build hw/nvme: move nvme emulation out of hw/block 2021-05-17 09:19:00 +02:00