[RFC,v0,1/2] kvm: API to obtain max supported mem slots

Commit Message

Bharata B Rao June 1, 2016, 9:51 a.m. UTC

Introduce kvm_get_max_memslots() API that can be used to obtain the
maximum number of memslots supported by KVM.

Signed-off-by: Bharata B Rao <[e-mail]>
---
 include/sysemu/kvm.h | 1 +
 kvm-all.c            | 7 +++++++
 2 files changed, 8 insertions(+)

Patch

diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 65569ed..ad6f837 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -527,4 +527,5 @@  int kvm_set_one_reg(CPUState *cs, uint64_t id, void *source);
  * Returns: 0 on success, or a negative errno on failure.
  */
 int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target);
+int kvm_get_max_memslots(void);
 #endif
diff --git a/kvm-all.c b/kvm-all.c
index d317dcb..fbd2d93 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -126,6 +126,13 @@  static const KVMCapabilityInfo kvm_required_capabilites[] = {
     KVM_CAP_LAST_INFO
 };
 
+int kvm_get_max_memslots(void)
+{
+    KVMState *s = KVM_STATE(current_machine->accelerator);
+
+    return s->nr_slots;
+}
+
 static KVMSlot *kvm_get_free_slot(KVMMemoryListener *kml)
 {
     KVMState *s = kvm_state;