Re: [SeaBIOS] Xen PV block device support in Seabios

2016-03-19 Thread Gerd Hoffmann
Hi, > > Ian, thanks for your reply! It looks like the problem is how and when to > > clear PV resources in seabios before handing over to guest. But I wonder > > why virtio works in seabios. Does seabios using virtio need to clear > > things like vrings? Or seabios doesn't clear the things and g

Re: [SeaBIOS] [Xen-devel] Xen PV block device support in Seabios

2016-03-19 Thread Ian Campbell
On Wed, 2016-03-16 at 07:33 -0600, Jan Beulich wrote: > > > > > > > > > > > > > On 16.03.16 at 14:15, wrote: > > On Wed, Mar 16, 2016 at 12:22:32PM +, Ian Campbell wrote: > > > > > > On Wed, 2016-03-16 at 20:13 +0800, Shannon Zhao wrote: > > > > > > > > > > > > On 2016/3/16 19:20, Ian Ca

Re: [SeaBIOS] Xen PV block device support in Seabios

2016-03-19 Thread Ian Campbell
(nb, my citrix.com email is no longer valid) On Wed, 2016-03-16 at 11:33 +0800, Shannon Zhao wrote: > Hi, > > I noticed there are some efforts to add Xen PV block device support in > Seabios in a GSoC project and there is a wiki page [1] for it. I found > some patches [2] to add Xenstore R/W suppo

[SeaBIOS] [PATCH] sdcard: abort controller setup if capabilities invalid

2016-03-19 Thread Matt DeVillier
If the version and low/high capabilities flags of a sdcard controller are invalid (0x), assume the controller address is invalid, and exit setup before attempting to reset the controller, which would introduce an unnecessary delay, since the reset would ultimately fail after timing out. Thi

Re: [SeaBIOS] [Xen-devel] Xen PV block device support in Seabios

2016-03-19 Thread Jan Beulich
>>> On 16.03.16 at 14:15, wrote: > On Wed, Mar 16, 2016 at 12:22:32PM +, Ian Campbell wrote: >> On Wed, 2016-03-16 at 20:13 +0800, Shannon Zhao wrote: >> > >> > On 2016/3/16 19:20, Ian Campbell wrote: >> > > >> > > (nb, my citrix.com email is no longer valid) >> > > On Wed, 2016-03-16 at 11:

Re: [SeaBIOS] Xen PV block device support in Seabios

2016-03-19 Thread Shannon Zhao
On 2016/3/16 20:22, Ian Campbell wrote: > On Wed, 2016-03-16 at 20:13 +0800, Shannon Zhao wrote: >> > >> > On 2016/3/16 19:20, Ian Campbell wrote: >>> > > >>> > > (nb, my citrix.com email is no longer valid) >>> > > On Wed, 2016-03-16 at 11:33 +0800, Shannon Zhao wrote: > > > > > > >