xen: update Kconfig to allow 64-bit Xen
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>
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index c2cc995..20b4972 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -6,8 +6,8 @@
bool "Xen guest support"
select PARAVIRT
select PARAVIRT_CLOCK
- depends on X86_32
- depends on X86_CMPXCHG && X86_TSC && X86_PAE && !(X86_VISWS || X86_VOYAGER)
+ depends on X86_64 || (X86_32 && X86_PAE && !(X86_VISWS || X86_VOYAGER))
+ depends on X86_CMPXCHG && X86_TSC
help
This is the Linux Xen port. Enabling this will allow the
kernel to boot in a paravirtualized environment under the
@@ -15,10 +15,11 @@
config XEN_MAX_DOMAIN_MEMORY
int "Maximum allowed size of a domain in gigabytes"
- default 8
+ default 8 if X86_32
+ default 32 if X86_64
depends on XEN
help
The pseudo-physical to machine address array is sized
according to the maximum possible memory size of a Xen
domain. This array uses 1 page per gigabyte, so there's no
- need to be too stingy here.
\ No newline at end of file
+ need to be too stingy here.