Re: [Xen-devel] [PATCH] rombios/ata: Wait for BSY to clear after write

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Jun 13, 2017 at 09:56:32AM +0100, Andrew Cooper wrote:
> On 13/06/17 09:34, Ross Lagerwall wrote:
> > After rombios transfers the data for a write, it checks the status and
> > fails if BSY is set. qemu-trad doesn't set BSY for PIO writes, but QEMU
> > upstream does, and this causes rombios to fail writes because they are
> > marked as BSY. Instead, wait for BSY to clear after a write.
> >
> > INT 13 writes are probably rarely used these days, but they are used by
> > GRUB 2 to write to its environment file which happens by default on
> > Ubuntu.
> >
> > Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> 
> Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> 
> Ian/Wei: RomBIOS should probably join hvmloader under x86
> maintainership, if you don't object?
> 

No I don't.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel