With the 3 private slots, this gives us a nice round 128 slots total. The primary motivation for this is to support more assigned devices. Each assigned device can theoretically use up to 8 slots (6 MMIO BARs, 1 ROM BAR, 1 spare for a split MSI-X table mapping) though it's far more typical for a device to use 3-4 slots. If we assume a typical VM uses a dozen slots for non-assigned devices purposes, we should always be able to support 14 worst case assigned devices or 28 to 37 typical devices. Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index ce8b037..9558a1e 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -31,7 +31,7 @@ #define KVM_MAX_VCPUS 254 #define KVM_SOFT_MAX_VCPUS 160 -#define KVM_USER_MEM_SLOTS 32 +#define KVM_USER_MEM_SLOTS 125 /* 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) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
