Re: [Qemu-devel] [PATCH 0/4] linux framebuffer display driver

[Alon Levy]

> Hi,
> 
> Undusting an pretty old patch series, rebasing it, testing it, fixing
> a bug or two, fixing codestyle issues:  Qemu can run on the linux
> framebuffer console as graphical display now.

Patch 4 doesn't apply (hmp.h), missing SoB on a few patches. 

Tested with Seabios. Works as advertised, tested console switching, quit, 
serial console. Some minor point:
 To switch to serial: Ctrl-Alt-1. To switch back to console output you have to 
release Ctrl & release Alt, then repress them, i.e. can't just release 1 and 
press 0.

Verified systemtap points using the following script:

$ cat scripts/simple-qemu-trace.py 
#!/usr/bin/env python

import sys

start = sys.argv[1]

for line in sys.stdin:
    if not line.startswith(start):
        continue
    probe = line.split('(')[0]
    print """probe qemu.system.x86_64.%s {
    printf("%s\\n");
}
""" % (probe, probe)

./scripts/simple-qemu-trace.py fbdev < trace-events | sudo stap -v -s1 -I 
x86_64-softmmu -

> 
> enjoy,
>   Gerd
> 
> Gerd Hoffmann (4):
>   QLIST-ify display change listeners.
>   add unregister_displaychangelistener
>   fbdev: add linux framebuffer display driver.
>   fbdev: add monitor command to enable/disable
> 
>  console.h           |   86 +++--
>  hmp-commands.hx     |   15 +
>  hmp.c               |    9 +
>  hmp.h               |    1 +
>  hw/xenfb.c          |    2 +-
>  qapi-schema.json    |   15 +
>  qemu-options.hx     |    8 +
>  qmp-commands.hx     |    6 +
>  qmp.c               |   17 +
>  sysemu.h            |    1 +
>  trace-events        |   14 +
>  ui/Makefile.objs    |    1 +
>  ui/fbdev.c          |  953
>  +++++++++++++++++++++++++++++++++++++++++++++++++++
>  ui/linux-keynames.h |  388 +++++++++++++++++++++
>  vl.c                |   50 ++-
>  15 files changed, 1518 insertions(+), 48 deletions(-)
>  create mode 100644 ui/fbdev.c
>  create mode 100644 ui/linux-keynames.h
> 
> 
>