Messages in this thread | | | Subject | Re: [PATCH] Revert "xen/balloon: Mark unallocated host memory as UNUSABLE" | From | Juergen Gross <> | Date | Thu, 29 Nov 2018 17:55:52 +0100 |
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On 27/11/2018 21:58, Igor Druzhinin wrote: > This reverts commit b3cf8528bb21febb650a7ecbf080d0647be40b9f. > > That commit unintentionally broke Xen balloon memory hotplug with > "hotplug_unpopulated" set to 1. As long as "System RAM" resource > got assigned under a new "Unusable memory" resource in IO/Mem tree > any attempt to online this memory would fail due to general kernel > restrictions on having "System RAM" resources as 1st level only. > > The original issue that commit has tried to workaround fa564ad96366 > ("x86/PCI: Enable a 64bit BAR on AMD Family 15h (Models 00-1f, 30-3f, > 60-7f)") also got amended by the following 03a551734 ("x86/PCI: Move > and shrink AMD 64-bit window to avoid conflict") which made the > original fix to Xen ballooning unnecessary. > > Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Pushed to xen/tip.git for-linus-4.20a
Juergen
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