History log of /qemu/include/qemu-main.h (Results 1 – 6 of 6)
Revision Date Author Comments
# 8b70d7f2 01-Jan-2025 Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'hw-misc-20241231' of https://github.com/philmd/qemu into staging

Misc HW patches queue

- Allow more than 4 legacy IRQs on Generic PCI Express Bridge (Alexander)
- Add MMIO-based Inter-VM

Merge tag 'hw-misc-20241231' of https://github.com/philmd/qemu into staging

Misc HW patches queue

- Allow more than 4 legacy IRQs on Generic PCI Express Bridge (Alexander)
- Add MMIO-based Inter-VM shared memory device 'ivshmem-flat' (Gustavo)
- Use UHCI register definitions (Guenter)
- Propagate CPU endianness to microblaze_load_kernel (Philippe)
- Mark x86/TriCore devices as little-endian, OpenRISC/SPARC as big (Philippe)
- Don't set callback_opaque NULL in fw_cfg_modify_bytes_read (Shameer)
- Simplify non-KVM checks on AMD IOMMU XTSup feature (Philippe)
- Trivial cleanups on xilinx_ethlite, vmcoreinfo, qxl (Philippe, Hyman)
- Move USB-HCD-XHCI msi/msix properties from NEC to superclass (Phil)
- Redesign of main thread event handling due to macOS Cocoa (Phil)
- Introduce ParavirtualizedGraphics.Framework support 'apple-gfx' (Phil)
- Pad short Ethernet frames on macOS vmnet (William)

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# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE

* tag 'hw-misc-20241231' of https://github.com/philmd/qemu: (29 commits)
hw/display/qxl: Do not use C99 // comments
net/vmnet: Pad short Ethernet frames
MAINTAINERS: Add myself as maintainer for apple-gfx, reviewer for HVF
hw/display/apple-gfx: Adds configurable mode list
hw/display/apple-gfx: Adds PCI implementation
hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
ui & main loop: Redesign of system-specific main thread event handling
hw/usb/hcd-xhci: Unimplemented/guest error logging for port MMIO
hw/usb/hcd-xhci-pci: Move msi/msix properties from NEC to superclass
hw/block/virtio-blk: Replaces request free function with g_free
hw/i386/amd_iommu: Simplify non-KVM checks on XTSup feature
hw/misc/vmcoreinfo: Rename opaque pointer as 'opaque'
hw/misc/vmcoreinfo: Declare QOM type using DEFINE_TYPES macro
fw_cfg: Don't set callback_opaque NULL in fw_cfg_modify_bytes_read()
hw/net/xilinx_ethlite: Rename rxbuf -> port_index
hw/net/xilinx_ethlite: Correct maximum RX buffer size
hw/net/xilinx_ethlite: Update QOM style
hw/net/xilinx_ethlite: Remove unuseful debug logs
hw/net/xilinx_ethlite: Convert some debug logs to trace events
hw/sparc: Mark devices as big-endian
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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# f5ab12ca 24-Oct-2024 Phil Dennis-Jordan <phil@philjordan.eu>

ui & main loop: Redesign of system-specific main thread event handling

macOS's Cocoa event handling must be done on the initial (main) thread
of the process. Furthermore, if library or application c

ui & main loop: Redesign of system-specific main thread event handling

macOS's Cocoa event handling must be done on the initial (main) thread
of the process. Furthermore, if library or application code uses
libdispatch, the main dispatch queue must be handling events on the main
thread as well.

So far, this has affected Qemu in both the Cocoa and SDL UIs, although
in different ways: the Cocoa UI replaces the default qemu_main function
with one that spins Qemu's internal main event loop off onto a
background thread. SDL (which uses Cocoa internally) on the other hand
uses a polling approach within Qemu's main event loop. Events are
polled during the SDL UI's dpy_refresh callback, which happens to run
on the main thread by default.

As UIs are mutually exclusive, this works OK as long as nothing else
needs platform-native event handling. In the next patch, a new device is
introduced based on the ParavirtualizedGraphics.framework in macOS.
This uses libdispatch internally, and only works when events are being
handled on the main runloop. With the current system, it works when
using either the Cocoa or the SDL UI. However, it does not when running
headless. Moreover, any attempt to install a similar scheme to the
Cocoa UI's main thread replacement fails when combined with the SDL
UI.

This change tidies up main thread management to be more flexible.

* The qemu_main global function pointer is a custom function for the
main thread, and it may now be NULL. When it is, the main thread
runs the main Qemu loop. This represents the traditional setup.
* When non-null, spawning the main Qemu event loop on a separate
thread is now done centrally rather than inside the Cocoa UI code.
* For most platforms, qemu_main is indeed NULL by default, but on
Darwin, it defaults to a function that runs the CFRunLoop.
* The Cocoa UI sets qemu_main to a function which runs the
NSApplication event handling runloop, as is usual for a Cocoa app.
* The SDL UI overrides the qemu_main function to NULL, thus
specifying that Qemu's main loop must run on the main
thread.
* The GTK UI also overrides the qemu_main function to NULL.
* For other UIs, or in the absence of UIs, the platform's default
behaviour is followed.

This means that on macOS, the platform's runloop events are always
handled, regardless of chosen UI. The new PV graphics device will
thus work in all configurations. There is no functional change on other
operating systems.

Implementing this via a global function pointer variable is a bit
ugly, but it's probably worth investigating the existing UI thread rule
violations in the SDL (e.g. #2537) and GTK+ back-ends. Fixing those
issues might precipitate requirements similar but not identical to those
of the Cocoa UI; hopefully we'll see some kind of pattern emerge, which
can then be used as a basis for an overhaul. (In fact, it may turn
out to be simplest to split the UI/native platform event thread from the
QEMU main event loop on all platforms, with any UI or even none at all.)

Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20241223221645.29911-2-phil@philjordan.eu>
[PMD: Declare 'qemu_main' symbol in tests/qtest/fuzz/fuzz.c,
add missing g_assert_not_reached() call in main()]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

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# c48c9c6b 27-Sep-2022 Stefan Hajnoczi <stefanha@redhat.com>

Merge tag 'kraxel-20220927-pull-request' of https://gitlab.com/kraxel/qemu into staging

usb: make usbnet work with xhci.
audio: add sndio backend.
misc bugfixes for console, xhci, audio, ati-vga and

Merge tag 'kraxel-20220927-pull-request' of https://gitlab.com/kraxel/qemu into staging

usb: make usbnet work with xhci.
audio: add sndio backend.
misc bugfixes for console, xhci, audio, ati-vga and virtio-gpu.

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# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138

* tag 'kraxel-20220927-pull-request' of https://gitlab.com/kraxel/qemu: (24 commits)
virtio-gpu: update scanout if there is any area covered by the rect
hw/display/ati_2d: Fix buffer overflow in ati_2d_blt (CVE-2021-3638)
audio: remove abort() in audio_bug()
Revert "audio: Log context for audio bug"
audio: Add sndio backend
usbnet: Report link-up via interrupt endpoint in CDC-ECM mode
usbnet: Detect short packets as sent by the xHCI controller
usbnet: Accept mandatory USB_CDC_SET_ETHERNET_PACKET_FILTER request
usbnet: Add missing usb_wakeup() call in usbnet_receive()
hcd-xhci: drop operation with secondary stream arrays enabled
usb/msd: add usb_msd_fatal_error() and fix guest-triggerable assert
usb/msd: move usb_msd_packet_complete()
hcd-ohci: Drop ohci_service_iso_td() if ed->head & OHCI_DPTR_MASK is zero
hw/usb/hcd-xhci: Check whether DMA accesses fail
ui/console: fix three double frees in png_save()
ui/vdagent: fix serial reset of guest agent
ui/clipboard: reset the serial state on reset
ui/vdagent: always reset the clipboard serial on caps
ui/clipboard: fix serial priority
ui: add some vdagent related traces
...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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# bab6a301 19-Aug-2022 Akihiko Odaki <akihiko.odaki@gmail.com>

ui/cocoa: Run qemu_init in the main thread

This work is based on:
https://patchew.org/QEMU/20220317125534.38706-1-philippe.mathieu.daude@gmail.com/

Simplify the initialization dance by running qemu

ui/cocoa: Run qemu_init in the main thread

This work is based on:
https://patchew.org/QEMU/20220317125534.38706-1-philippe.mathieu.daude@gmail.com/

Simplify the initialization dance by running qemu_init() in the main
thread before the Cocoa event loop starts. The secondary thread only
runs only qemu_main_loop() and qemu_cleanup().

This fixes a case where addRemovableDevicesMenuItems() calls
qmp_query_block() while expecting the main thread to still hold
the BQL.

Overriding the code after calling qemu_init() is done by dynamically
replacing a function pointer variable, qemu_main when initializing
ui/cocoa, which unifies the static implementation of main() for
builds with ui/cocoa and ones without ui/cocoa.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20220819132756.74641-2-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

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# 28298069 21-Apr-2022 Richard Henderson <richard.henderson@linaro.org>

Merge tag 'misc-pull-request' of gitlab.com:marcandre.lureau/qemu into staging

Misc cleanups

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Merge tag 'misc-pull-request' of gitlab.com:marcandre.lureau/qemu into staging

Misc cleanups

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# gpg: issuer "marcandre.lureau@redhat.com"
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg: aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]

* tag 'misc-pull-request' of gitlab.com:marcandre.lureau/qemu: (30 commits)
qga: use fixed-length and GDateTime for log timestamp
tests/fuzz: fix warning
qga: remove need for QEMU atomic.h
util: replace qemu_get_local_state_pathname()
util: use qemu_create() in qemu_write_pidfile()
util: use qemu_write_full() in qemu_write_pidfile()
util: simplify write in signal handler
qtest: simplify socket_send()
qga: move qga_get_host_name()
Move error_printf_unless_qmp() with monitor unit
tests: run-time skip test-qga if TSAN is enabled
compiler.h: add QEMU_SANITIZE_{ADDRESS,THREAD}
tests: remove block/qdict checks from check-qobject.c
include: move qdict_{crumple,flatten} declarations
include: add qemu/keyval.h
include: move qemu_fdatasync() to osdep
include: move qemu_msync() to osdep
compiler.h: replace QEMU_NORETURN with G_NORETURN
osdep.h: move qemu_build_not_reached()
doc/style: CLang -> Clang
...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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# 88c39c86 20-Apr-2022 Marc-André Lureau <marcandre.lureau@redhat.com>

Simplify softmmu/main.c

Move qemu_main() declaration to a new header.

Simplify main.c since both cocoa & sdl cannot be enabled together.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.c

Simplify softmmu/main.c

Move qemu_main() declaration to a new header.

Simplify main.c since both cocoa & sdl cannot be enabled together.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220420132624.2439741-5-marcandre.lureau@redhat.com>

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