kvm: x86: increase user memory slots to 509

With the 3 private slots, this gives us 512 slots total. Motivation for this is in addition to assigned devices support more memory hotplug slots, where 1 slot is used by a hotplugged memory stick. It will allow to support upto 256 hotplug memory slots and leave 253 slots for assigned devices and other devices that use them. Signed-off-by: Igor Mammedov <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
cbmeeks · Nov 14, 2014 · 1d4e7e3 · 1d4e7e3
1 parent d913b90
commit 1d4e7e3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
@@ -33,7 +33,7 @@
 
 #define KVM_MAX_VCPUS 255
 #define KVM_SOFT_MAX_VCPUS 160
-#define KVM_USER_MEM_SLOTS 125
+#define KVM_USER_MEM_SLOTS 509
 /* memory slots that are not exposed to userspace */
 #define KVM_PRIVATE_MEM_SLOTS 3
 #define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)