x86: enable VIA CPU support

Newer VIA CPUs have both 64-bit and VMX support. Enable them to be
recognized for these purposes, at once stripping off any 32-bit CPU
only bits from the respective CPU support file, and adding 64-bit ones
found in recent Linux.

This particularly implies untying the VMX == Intel assumption in a few
places.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>

1 files changed, 2 insertions, 9 deletions

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index 12b2f73088..0929a098f7 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -111,17 +111,10 @@ static int __init hvm_enable(void)
 {
     struct hvm_function_table *fns = NULL;
 
-    switch ( boot_cpu_data.x86_vendor )
-    {
-    case X86_VENDOR_INTEL:
+    if ( cpu_has_vmx )
         fns = start_vmx();
-        break;
-    case X86_VENDOR_AMD:
+    else if ( cpu_has_svm )
         fns = start_svm();
-        break;
-    default:
-        break;
-    }
 
     if ( fns == NULL )
         return 0;