> > From: Li, Liang Z > > Sent: Tuesday, December 13, 2016 11:58 AM > > > > Hi All, > > > > We are now working on enabling 5 level paging & 5 level EPT for XEN. We need > the > > community's opinions about the following aspects: > > > > 1. Should we enable 5 level paging for PV guest ? (You are discussing) > > 2. Should we make the 5 level paging and 4 level paging supported with one > binary? [Zhang, Xiong Y] If we plan to enable 5 level paging at runtime, we have to reconstruct xen mm code first as some constants (especially in asm-x86/config.h) are defined static for 4 level paging and are used before __start_xen. If we plan to enable 5 level paging with separate binary, things will be much easier with CONFIG option.
> > 3. When should the 5 level EPT be enabled? > > Isn't it as usual i.e. let's enable once the spec is published? Or could you > elaborate any concern of asking this question? > > > 4. Should we extend shadow page to support 5 level paging guest? > > > > I don't think so. EPT has been there for so many years. We can assume > EPT available on new platform which supports 5-level. > > Thanks > Kevin _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
