KVM: Bump maximum vcpu count to 64
With slots_lock converted to rcu, the entire kvm hotpath on modern processors
(with npt or ept) now scales beautifully. Increase the maximum vcpu count to
64 to reflect this.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 6c8c7c5..741b897 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -25,7 +25,7 @@
#include <asm/mtrr.h>
#include <asm/msr-index.h>
-#define KVM_MAX_VCPUS 16
+#define KVM_MAX_VCPUS 64
#define KVM_MEMORY_SLOTS 32
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4