On 2/20/21 12:11 PM, Alexander Kanavin wrote:
What I am saying is that -nographic (where the output goes on the host)
and -vga none (what hardware gets emulated in the guest) are
independent, orthogonal options, and you should not bundle them
together. It is a valid use case to have -nographic with emulated
graphical hardware still enabled.
I think I understood what you mean, I was suggesting to not translate
runqemu option 'nographic' one to one to qemu option -nographic but
still address the usecase you are bringing up with another option on the
line like sdl, gtk options we have
Alex
On Sat, 20 Feb 2021 at 21:03, Khem Raj <[email protected]
<mailto:[email protected]>> wrote:
On 2/20/21 11:20 AM, Alexander Kanavin wrote:
> I don't think this is right. You might want to use -nographic,
but still
> keep an emulated graphical device inside the guest for testing the
> userspace applications without seeing their output. It's better
to set
> -vga none via a dedicated runqemu option.
using -display none is better way to control this kind of behaviour
where you still want graphic card to be emulated but not display the
output. perhaps such an option would be better suited and nographic
runqemu option can be used for qemu being a simple cmdline app.
>
> Alex
>
> On Sat, 20 Feb 2021 at 20:09, Khem Raj <[email protected]
<mailto:[email protected]>
> <mailto:[email protected] <mailto:[email protected]>>> wrote:
>
> When using nographic, explicitly disable vga since some qemu
firmware (
> OpenFirmware ) defaults to std vga, and when vga is enabled
then it
> disables output to serial and redirects that to vga which is
by design,
> hwoever we expect the console output to go to serial when using
> nographic, therefore its important to disable vga with nographic
> especially on qemu based ppc platforms
>
> Signed-off-by: Khem Raj <[email protected]
<mailto:[email protected]> <mailto:[email protected]
<mailto:[email protected]>>>
> ---
> scripts/runqemu | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/runqemu b/scripts/runqemu
> index dd92a64553..2e31338d8e 100755
> --- a/scripts/runqemu
> +++ b/scripts/runqemu
> @@ -462,7 +462,7 @@ class BaseConfig(object):
> raise RunQemuError('Option nographic
makes no
> sense alongside the sdl option.' % (arg))
> if ('gtk' in sys.argv):
> raise RunQemuError('Option nographic
makes no
> sense alongside the gtk option.' % (arg))
> - self.qemu_opt_script += ' -nographic'
> + self.qemu_opt_script += ' -nographic -vga none'
> self.kernel_cmdline_script += ' console=ttyS0'
> elif arg == 'sdl':
> if 'gl' in sys.argv[1:]:
> --
> 2.30.1
>
>
>
>
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