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xen: update Kconfig to allow 64-bit Xen

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Allow Xen to be enabled on 64-bit.

Also extend domain size limit from 8 GB (on 32-bit) to 32 GB on 64-bit.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jeremy Fitzhardinge
2008-07-08 15:07:17 -07:00
committed by Ingo Molnar
parent 1153968a48
commit 51dd660a2c
1 changed files with 5 additions and 4 deletions
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9
arch/x86/xen/Kconfig
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@@ -6,8 +6,8 @@ config XEN
bool "Xen guest support" bool "Xen guest support"
select PARAVIRT select PARAVIRT
select PARAVIRT_CLOCK select PARAVIRT_CLOCK
depends on X86_32 depends on X86_64 || (X86_32 && X86_PAE && !(X86_VISWS || X86_VOYAGER))
depends on X86_CMPXCHG && X86_TSC && X86_PAE && !(X86_VISWS || X86_VOYAGER) depends on X86_CMPXCHG && X86_TSC
help help
This is the Linux Xen port. Enabling this will allow the This is the Linux Xen port. Enabling this will allow the
kernel to boot in a paravirtualized environment under the kernel to boot in a paravirtualized environment under the
@@ -15,10 +15,11 @@ config XEN
config XEN_MAX_DOMAIN_MEMORY config XEN_MAX_DOMAIN_MEMORY
int "Maximum allowed size of a domain in gigabytes" int "Maximum allowed size of a domain in gigabytes"
default 8 default 8 if X86_32
default 32 if X86_64
depends on XEN depends on XEN
help help
The pseudo-physical to machine address array is sized The pseudo-physical to machine address array is sized
according to the maximum possible memory size of a Xen according to the maximum possible memory size of a Xen
domain. This array uses 1 page per gigabyte, so there's no domain. This array uses 1 page per gigabyte, so there's no
need to be too stingy here. need to be too stingy here.