* [V0 PATCH] PVH: Don't set EFER_SCE for pvh guest
@ 2014-08-22 3:14 Mukesh Rathor
2014-08-22 9:57 ` Roger Pau Monné
0 siblings, 1 reply; 2+ messages in thread
From: Mukesh Rathor @ 2014-08-22 3:14 UTC (permalink / raw)
To: jbeulich, roger.pau; +Cc: xen-devel
Just like NX is guest managed, SCE should be too. Remove setting of
the EFER_SCE for pvh guest.
Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
---
xen/arch/x86/hvm/hvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index d40c48e..7ec618b 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -2283,7 +2283,7 @@ int hvm_vcpu_initialise(struct vcpu *v)
{
v->arch.hvm_vcpu.hcall_64bit = 1; /* PVH 32bitfixme. */
/* This is for hvm_long_mode_enabled(v). */
- v->arch.hvm_vcpu.guest_efer = EFER_SCE | EFER_LMA | EFER_LME;
+ v->arch.hvm_vcpu.guest_efer = EFER_LMA | EFER_LME;
return 0;
}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [V0 PATCH] PVH: Don't set EFER_SCE for pvh guest
2014-08-22 3:14 [V0 PATCH] PVH: Don't set EFER_SCE for pvh guest Mukesh Rathor
@ 2014-08-22 9:57 ` Roger Pau Monné
0 siblings, 0 replies; 2+ messages in thread
From: Roger Pau Monné @ 2014-08-22 9:57 UTC (permalink / raw)
To: Mukesh Rathor, jbeulich; +Cc: xen-devel
On 22/08/14 05:14, Mukesh Rathor wrote:
> Just like NX is guest managed, SCE should be too. Remove setting of
> the EFER_SCE for pvh guest.
>
> Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
FYI, FreeBSD PVH was already setting SCE on it's own during BSP/AP
initialization.
^ permalink raw reply [flat|nested] 2+ messages in thread
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