[Xen-devel] [PATCH v6 4/8] x86/hvm: Introduce hvm_save_cpu_xsave_states_one

[Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>]

This is used to save data from a single instance.

Signed-off-by: Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>
---
 xen/arch/x86/hvm/hvm.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index b254378..e8ecabf 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -1183,6 +1183,13 @@ HVM_REGISTER_SAVE_RESTORE(CPU, hvm_save_cpu_ctxt, 
hvm_load_cpu_ctxt,
                                            save_area) + \
                                   xstate_ctxt_size(xcr0))
 
+static void hvm_save_cpu_xsave_states_one(struct vcpu *v, struct 
hvm_hw_cpu_xsave *ctxt)
+{
+    ctxt->xfeature_mask = xfeature_mask;
+    ctxt->xcr0 = v->arch.xcr0;
+    ctxt->xcr0_accum = v->arch.xcr0_accum;
+}
+
 static int hvm_save_cpu_xsave_states(struct domain *d, hvm_domain_context_t *h)
 {
     struct vcpu *v;
@@ -1202,9 +1209,7 @@ static int hvm_save_cpu_xsave_states(struct domain *d, 
hvm_domain_context_t *h)
         ctxt = (struct hvm_hw_cpu_xsave *)&h->data[h->cur];
         h->cur += size;
 
-        ctxt->xfeature_mask = xfeature_mask;
-        ctxt->xcr0 = v->arch.xcr0;
-        ctxt->xcr0_accum = v->arch.xcr0_accum;
+        hvm_save_cpu_xsave_states_one(v, ctxt);
         expand_xsave_states(v, &ctxt->save_area,
                             size - offsetof(typeof(*ctxt), save_area));
     }
-- 
2.7.4


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