* [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG @ 2020-03-23 14:38 Roger Pau Monne 2020-03-24 11:55 ` Ian Jackson 0 siblings, 1 reply; 4+ messages in thread From: Roger Pau Monne @ 2020-03-23 14:38 UTC (permalink / raw) To: xen-devel; +Cc: ian.jackson, Roger Pau Monne This allows a PVH/HVM domain to use unpopulated memory ranges to map foreign memory or grants, and is required for a PVH dom0 to function properly. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> --- ts-kernel-build | 1 + 1 file changed, 1 insertion(+) diff --git a/ts-kernel-build b/ts-kernel-build index c976289e..89cdafcb 100755 --- a/ts-kernel-build +++ b/ts-kernel-build @@ -511,6 +511,7 @@ setopt CONFIG_XEN_KBDDEV_FRONTEND y setopt CONFIG_XEN_FBDEV_FRONTEND y setopt CONFIG_XEN_PCIDEV_FRONTEND y setopt CONFIG_XEN_BALLOON y +setopt CONFIG_XEN_BALLOON_MEMORY_HOTPLUG y setopt CONFIG_XEN_SCRUB_PAGES y setopt CONFIG_XEN_DEV_EVTCHN y setopt CONFIG_XEN_BACKEND y -- 2.25.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG 2020-03-23 14:38 [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG Roger Pau Monne @ 2020-03-24 11:55 ` Ian Jackson [not found] ` <24185.62908.869446.447190@mariner.uk.xensource.com> 0 siblings, 1 reply; 4+ messages in thread From: Ian Jackson @ 2020-03-24 11:55 UTC (permalink / raw) To: Roger Pau Monne; +Cc: xen-devel, Ian Jackson Roger Pau Monne writes ("[PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): > This allows a PVH/HVM domain to use unpopulated memory ranges to map > foreign memory or grants, and is required for a PVH dom0 to function > properly. > > Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> I will push this to pretest immediately. Thanks, Ian. ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <24185.62908.869446.447190@mariner.uk.xensource.com>]
* Re: [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG [not found] ` <24185.62908.869446.447190@mariner.uk.xensource.com> @ 2020-03-24 12:00 ` Roger Pau Monné 2020-03-24 13:08 ` Jürgen Groß 0 siblings, 1 reply; 4+ messages in thread From: Roger Pau Monné @ 2020-03-24 12:00 UTC (permalink / raw) To: Juergen Gross, Boris Ostrovsky; +Cc: xen-devel, Ian Jackson Adding Juergen and Boris for feedback. On Tue, Mar 24, 2020 at 11:57:48AM +0000, Ian Jackson wrote: > Ian Jackson writes ("Re: [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): > > Roger Pau Monne writes ("[PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): > > > This allows a PVH/HVM domain to use unpopulated memory ranges to map > > > foreign memory or grants, and is required for a PVH dom0 to function > > > properly. > > > > > > Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> > > > > Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> > > > > I will push this to pretest immediately. > > Now done. Would you consider whether the default should be changed > in Linux and prepare a patch to do so if appropriate ? DYK if there's any reason why this is not on by default? Thanks, Roger. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG 2020-03-24 12:00 ` Roger Pau Monné @ 2020-03-24 13:08 ` Jürgen Groß 0 siblings, 0 replies; 4+ messages in thread From: Jürgen Groß @ 2020-03-24 13:08 UTC (permalink / raw) To: Roger Pau Monné, Boris Ostrovsky; +Cc: xen-devel, Ian Jackson On 24.03.20 13:00, Roger Pau Monné wrote: > Adding Juergen and Boris for feedback. > > On Tue, Mar 24, 2020 at 11:57:48AM +0000, Ian Jackson wrote: >> Ian Jackson writes ("Re: [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): >>> Roger Pau Monne writes ("[PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): >>>> This allows a PVH/HVM domain to use unpopulated memory ranges to map >>>> foreign memory or grants, and is required for a PVH dom0 to function >>>> properly. >>>> >>>> Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> >>> >>> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> >>> >>> I will push this to pretest immediately. >> >> Now done. Would you consider whether the default should be changed >> in Linux and prepare a patch to do so if appropriate ? > > DYK if there's any reason why this is not on by default? AFAIK the default has been off since introduction in 2011. I don't know the reason for that. Juergen ^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-03-23 14:38 [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG Roger Pau Monne
2020-03-24 11:55 ` Ian Jackson
[not found] ` <24185.62908.869446.447190@mariner.uk.xensource.com>
2020-03-24 12:00 ` Roger Pau Monné
2020-03-24 13:08 ` Jürgen Groß
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