[PATCH v3 02/12] x86/hvm: Map/unmap xsave area in hvm_save_cpu_ctxt()

[Alejandro Vallejo <alejandro.vallejo@xxxxxxxxx>]

No functional change.

Signed-off-by: Alejandro Vallejo <alejandro.vallejo@xxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
v2->v3:
  * Added A-by

v1->v2:
  * No change
---
 xen/arch/x86/hvm/hvm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index 922c9b3af64d..884b2b9d32cd 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -914,11 +914,11 @@ static int cf_check hvm_save_cpu_ctxt(struct vcpu *v, 
hvm_domain_context_t *h)
 
     if ( v->fpu_initialised )
     {
-        BUILD_BUG_ON(sizeof(ctxt.fpu_regs) !=
-                     sizeof(v->arch.xsave_area->fpu_sse));
-        memcpy(ctxt.fpu_regs, &v->arch.xsave_area->fpu_sse,
-               sizeof(ctxt.fpu_regs));
+        const struct xsave_struct *xsave_area = VCPU_MAP_XSAVE_AREA(v);
 
+        BUILD_BUG_ON(sizeof(ctxt.fpu_regs) != sizeof(xsave_area->fpu_sse));
+        memcpy(ctxt.fpu_regs, &xsave_area->fpu_sse, sizeof(ctxt.fpu_regs));
+        VCPU_UNMAP_XSAVE_AREA(v, xsave_area);
         ctxt.flags = XEN_X86_FPU_INITIALISED;
     }
 
-- 
2.47.1