[Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread Juergen Gross
Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set regions above the end of RAM as 1:1") introduced a regression. To be able to add memory pages which were added via memory hotplug to a pv domain, the pages must be "invalid" instead of "identity" in the p2m list before they can be adde

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread David Vrabel
On 19/03/15 14:31, Juergen Gross wrote: > Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set > regions above the end of RAM as 1:1") introduced a regression. > > To be able to add memory pages which were added via memory hotplug to > a pv domain, the pages must be "invalid" instead of

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread Daniel Kiper
On Thu, Mar 19, 2015 at 03:31:02PM +0100, Juergen Gross wrote: > Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set > regions above the end of RAM as 1:1") introduced a regression. > > To be able to add memory pages which were added via memory hotplug to > a pv domain, the pages must be

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread Juergen Gross
On 03/19/2015 05:18 PM, David Vrabel wrote: On 19/03/15 14:31, Juergen Gross wrote: Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set regions above the end of RAM as 1:1") introduced a regression. To be able to add memory pages which were added via memory hotplug to a pv domain, th

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread Juergen Gross
On 03/19/2015 05:21 PM, Daniel Kiper wrote: On Thu, Mar 19, 2015 at 03:31:02PM +0100, Juergen Gross wrote: Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set regions above the end of RAM as 1:1") introduced a regression. To be able to add memory pages which were added via memory hot

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread David Vrabel
On 19/03/15 17:19, Juergen Gross wrote: > On 03/19/2015 05:18 PM, David Vrabel wrote: >> On 19/03/15 14:31, Juergen Gross wrote: >>> Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set >>> regions above the end of RAM as 1:1") introduced a regression. >>> >>> To be able to add memory pag

Re: [Xen-devel] [PATCH 2/2] xen: before ballooning hotplugged memory, set frames to invalid

2015-03-19 Thread Daniel Kiper
On Thu, Mar 19, 2015 at 06:22:06PM +0100, Juergen Gross wrote: > On 03/19/2015 05:21 PM, Daniel Kiper wrote: > >On Thu, Mar 19, 2015 at 03:31:02PM +0100, Juergen Gross wrote: > >>Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set > >>regions above the end of RAM as 1:1") introduced a re