tree 469b2f72e74046a7aec5061df194c3f68812a224
parent 7017fc3d1a12e30ea7df4992152978a188433457
author Eddie Dong <eddie.dong@intel.com> 1189583884 +0300
committer Avi Kivity <avi@qumranet.com> 1192263505 +0200

KVM: Emulate local APIC in kernel

Because lightweight exits (exits which don't involve userspace) are many
times faster than heavyweight exits, it makes sense to emulate high usage
devices in the kernel.  The local APIC is one such device, especially for
Windows and for SMP, so we add an APIC model to kvm.

It also allows in-kernel host-side drivers to inject interrupts without
going through userspace.

[compile fix on i386 from Jindrich Makovicka]

Signed-off-by: Yaozu (Eddie) Dong <Eddie.Dong@intel.com>
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>