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Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output |
Date: |
Mon, 4 Jul 2016 17:45:56 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1.1 |
On 04/07/2016 17:26, Kevin O'Connor wrote:
> > 4k, we need both character and attribute. But, yes, if we can allocate
> > that somewhere in real mode address space without running into memory
> > pressure this might be the best option.
>
> Unfortunately, the screen can be larger than 80x25.
It can with SVGA BIOS, but Gerd here only supports mode 3, doesn't he?
Paolo
> If a large buffer is desired, it's also possible to malloc_high() it
> and then use either: call32() to access it, or int1587 to read/write
> it (see ramdisk.c:ramdisk_copy() as an example). Either way it seems
> ugly.
>
> At one point I looked through the sgabios code and was able to
> understand how it did caching. I'll take another look and see if I
> can describe it.
- [Qemu-devel] [RFC PATCH 0/2] seabios: add serial console support, Gerd Hoffmann, 2016/07/01
- [Qemu-devel] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/01
- Re: [Qemu-devel] [SeaBIOS] [RFC PATCH 1/2] serial console, output, Kevin O'Connor, 2016/07/01
- Re: [Qemu-devel] [SeaBIOS] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Paolo Bonzini, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Paolo Bonzini, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Kevin O'Connor, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output,
Paolo Bonzini <=
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Kevin O'Connor, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Paolo Bonzini, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Kevin O'Connor, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/04
- Re: [Qemu-devel] [RFC PATCH 1/2] serial console, output, Gerd Hoffmann, 2016/07/04
[Qemu-devel] [RFC PATCH 2/2] serial console, input, Gerd Hoffmann, 2016/07/01