xen/20101-hvm-no-compat-virt-start.patch

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# HG changeset patch
# User Keir Fraser <keir.fraser@citrix.com>
# Date 1250789251 -3600
# Node ID 100699877583818a54bc16360dfd5cf80daa5dc7
# Parent 280fff79f7371981bb0bbda34205414fff14737e
x86_64 hvm: Adjust COMPAT_VIRT_START for 32-bit HVM guests.
The PV limit should not apply as there is no M2P table mapped into an
HVM guest's virtual address space.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Index: xen-3.4.1-testing/xen/arch/x86/domain.c
===================================================================
--- xen-3.4.1-testing.orig/xen/arch/x86/domain.c
+++ xen-3.4.1-testing/xen/arch/x86/domain.c
@@ -428,7 +428,8 @@ int arch_domain_create(struct domain *d,
#endif /* __x86_64__ */
#ifdef CONFIG_COMPAT
- HYPERVISOR_COMPAT_VIRT_START(d) = __HYPERVISOR_COMPAT_VIRT_START;
+ HYPERVISOR_COMPAT_VIRT_START(d) =
+ is_hvm_domain(d) ? ~0u : __HYPERVISOR_COMPAT_VIRT_START;
#endif
if ( (rc = paging_domain_init(d)) != 0 )