On 13/04/16 20:14, Luis R. Rodriguez wrote: > On Wed, Apr 13, 2016 at 03:02:26PM -0400, Konrad Rzeszutek Wilk wrote: >> On Wed, Apr 13, 2016 at 08:50:10PM +0200, Luis R. Rodriguez wrote: >>> On Wed, Apr 13, 2016 at 11:54:29AM +0200, Roger Pau Monné wrote: >>>> On Fri, Apr 08, 2016 at 11:58:54PM +0200, Luis R. Rodriguez wrote: >>>>> OK thanks for the clarification -- still no custom entries for Xen! >>>>> We should strive for that, at the very least. >>>>> >>>>> You do have a point about the legacy stuff. There are two options there: >>>>> >>>>> * Fold legacy support under HVMLite -- which seems to be what we >>>>> currently want to do (we should evaluate the implications and >>>>> requirements here for that); or >>>> >>>> I'm not following here. What does it mean to fold legacy support under >>>> HVMlite? HVMlite doesn't have any legacy hardware, and that's the issue >>>> when >>>> it comes to using native Linux entry points. Linux might expect some >>>> legacy >>>> PC hardware to be always present, which is not true for HVMlite. >>>> >>>> Could you please clarify this point? >>> >>> It seems there is a confusion on terms used. By folding legacy support under >>> HVMLite I meant folding legacy PV path (classic PV with PV interfaces) under >>> HVMlite. >> >> Ewww. > > Probably a confusion again on terms, by the above I meant to say what you seem > to be indicating below, which is to keep old PV guest support with PV > interfaces > using a new shiny entry. > > Or are we really going to nuke full support for old PV guests ?
Just to be clear: In this case "support for old PV guests" really means, "Support for running new versions of Linux in PV mode on old (non-HVMLite-capable) hypervisors". And yes, that is the plan: in 5 years' time, if you're still running Xen 4.6, to run a Linux 5.17* guest you'll have to run it in HVM mode, and you won't be able to use it as a dom0. (Xen 6.1 will still support Linux 4.5 running in PV mode, however.) -George * Making up version numbers here, obviously _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
