Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread David Vrabel
On 18/02/15 06:52, Juergen Gross wrote: > > +if X86_64 > +choice > + prompt "Support pv-domains larger than 512GB" > + default XEN_512GB_NONE > + help > + Support paravirtualized domains with more than 512GB of RAM. > + > + The Xen tools and crash dump analysis tools might

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Paul Bolle
On Wed, 2015-02-18 at 10:37 +0100, Juergen Gross wrote: > On 02/18/2015 10:21 AM, Paul Bolle wrote: > > On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: > >> +choice > >> + prompt "Support pv-domains larger than 512GB" > >> + default XEN_512GB_NONE > >> + help > >> +Support

Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Juergen Gross
On 02/18/2015 10:49 AM, Jan Beulich wrote: On 18.02.15 at 10:37, wrote: On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -23,14 +23,29 @@ config XEN_PVHVM def_bool y

Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Jan Beulich
>>> On 18.02.15 at 10:37, wrote: > On 02/18/2015 10:21 AM, Paul Bolle wrote: >> On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: >>> --- a/arch/x86/xen/Kconfig >>> +++ b/arch/x86/xen/Kconfig >>> @@ -23,14 +23,29 @@ config XEN_PVHVM >>> def_bool y >>> depends on XEN && PCI &&

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Juergen Gross
On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: 64 bit pv-domains under Xen are limited to 512 GB of RAM today. The main reason has been the 3 level p2m tree, which was replaced by the virtual mapped linear p2m list. Parallel to the p2m list

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Paul Bolle
On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: > 64 bit pv-domains under Xen are limited to 512 GB of RAM today. The > main reason has been the 3 level p2m tree, which was replaced by the > virtual mapped linear p2m list. Parallel to the p2m list which is > being used by the kernel itself

Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Jan Beulich
On 18.02.15 at 10:37, jgr...@suse.com wrote: On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -23,14 +23,29 @@ config XEN_PVHVM def_bool y depends on XEN PCI X86_LOCAL_APIC

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Juergen Gross
On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: 64 bit pv-domains under Xen are limited to 512 GB of RAM today. The main reason has been the 3 level p2m tree, which was replaced by the virtual mapped linear p2m list. Parallel to the p2m list

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Paul Bolle
On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: 64 bit pv-domains under Xen are limited to 512 GB of RAM today. The main reason has been the 3 level p2m tree, which was replaced by the virtual mapped linear p2m list. Parallel to the p2m list which is being used by the kernel itself

Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread David Vrabel
On 18/02/15 06:52, Juergen Gross wrote: +if X86_64 +choice + prompt Support pv-domains larger than 512GB + default XEN_512GB_NONE + help + Support paravirtualized domains with more than 512GB of RAM. + + The Xen tools and crash dump analysis tools might not

Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Juergen Gross
On 02/18/2015 10:49 AM, Jan Beulich wrote: On 18.02.15 at 10:37, jgr...@suse.com wrote: On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -23,14 +23,29 @@ config XEN_PVHVM def_bool

Re: [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-18 Thread Paul Bolle
On Wed, 2015-02-18 at 10:37 +0100, Juergen Gross wrote: On 02/18/2015 10:21 AM, Paul Bolle wrote: On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote: +choice + prompt Support pv-domains larger than 512GB + default XEN_512GB_NONE + help +Support paravirtualized domains with

[PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-17 Thread Juergen Gross
64 bit pv-domains under Xen are limited to 512 GB of RAM today. The main reason has been the 3 level p2m tree, which was replaced by the virtual mapped linear p2m list. Parallel to the p2m list which is being used by the kernel itself there is a 3 level mfn tree for usage by the Xen tools and

[PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains

2015-02-17 Thread Juergen Gross
64 bit pv-domains under Xen are limited to 512 GB of RAM today. The main reason has been the 3 level p2m tree, which was replaced by the virtual mapped linear p2m list. Parallel to the p2m list which is being used by the kernel itself there is a 3 level mfn tree for usage by the Xen tools and