Re: [Xen-devel] RMRR Fix Design for Xen

2015-01-05 Thread Chen, Tiejun
On 2015/1/6 1:01, George Dunlap wrote: On Fri, Dec 19, 2014 at 1:21 AM, Tiejun Chen wrote: RMRR Fix Design for Xen This design is a goal to fix RMRR for Xen. It includes four sectors as follows: * Background * What is RMRR * Current RMRR Issues * Desig

Re: [Xen-devel] RMRR Fix Design for Xen

2015-01-05 Thread George Dunlap
On Fri, Dec 19, 2014 at 1:21 AM, Tiejun Chen wrote: > RMRR Fix Design for Xen > > This design is a goal to fix RMRR for Xen. It includes four sectors as > follows: > > * Background > * What is RMRR > * Current RMRR Issues > * Design Overview > > We hope this can

Re: [Xen-devel] RMRR Fix Design for Xen

2014-12-21 Thread Tian, Kevin
I'll work out a new design proposal based on below content and previous discussions. Thanks Tiejun for your hard-working and Jan for your careful reviews so far. For below comment: > > Also there's clearly an alternative proposal: Drop support for sharing > > page tables. Your colleagues will sure

Re: [Xen-devel] RMRR Fix Design for Xen

2014-12-21 Thread Chen, Tiejun
Jan, Thanks for your time but I'm not going to address your comments here. Because I heard this design is totally not satisfied your expectation. But this really was reviewed with several revisions by Kevin and Yang before sending in public... Anyway, I guess the only thing what I can do is

Re: [Xen-devel] RMRR Fix Design for Xen

2014-12-19 Thread Jan Beulich
>>> On 19.12.14 at 02:21, wrote: > #4 Something like USB, is still restricted to current RMRR implementation. We >should work out this case. This can mean all or nothing. My understanding is that right now code assumes that USB devices won't use their RMRR-specified memory regions post-boot (

Re: [Xen-devel] RMRR Fix Design for Xen

2014-12-19 Thread Fabio Fantoni
Il 19/12/2014 02:21, Tiejun Chen ha scritto: RMRR Fix Design for Xen This design is a goal to fix RMRR for Xen. It includes four sectors as follows: * Background * What is RMRR * Current RMRR Issues * Design Overview We hope this can help us to understa