Re: [Xen-devel] [PATCH] xen/video: Set EFI framebuffer to WC by default

2015-06-11 Thread Jan Beulich
>>> On 11.06.15 at 15:03, wrote: > On 06/11/2015 01:35 PM, Jan Beulich wrote: > On 11.06.15 at 14:09, wrote: >>> Both Linux and FreeBSD map the EFI framebuffer as write-combining by >>> default, so I assume (hope) that this is a safe change to make. >> >> No, an unaware Dom0 OS may not work c

Re: [Xen-devel] [PATCH] xen/video: Set EFI framebuffer to WC by default

2015-06-11 Thread Ross Lagerwall
On 06/11/2015 01:35 PM, Jan Beulich wrote: On 11.06.15 at 14:09, wrote: Set the EFI framebuffer to write-combining by default. This makes booting somewhat faster, but more importantly avoids tripping the watchdog. In particular, before on my test machine, each frame redraw would take around 80m

Re: [Xen-devel] [PATCH] xen/video: Set EFI framebuffer to WC by default

2015-06-11 Thread Jan Beulich
>>> On 11.06.15 at 14:09, wrote: > Set the EFI framebuffer to write-combining by default. This makes > booting somewhat faster, but more importantly avoids tripping the > watchdog. In particular, before on my test machine, each frame redraw > would take around 80ms, which can trip the 5s watchdog

[Xen-devel] [PATCH] xen/video: Set EFI framebuffer to WC by default

2015-06-11 Thread Ross Lagerwall
Set the EFI framebuffer to write-combining by default. This makes booting somewhat faster, but more importantly avoids tripping the watchdog. In particular, before on my test machine, each frame redraw would take around 80ms, which can trip the 5s watchdog when constructing dom0, since it outputs s