neel 0bd53a85fb Add an API to rendezvous all active vcpus in a virtual machine. The rendezvous ... can be initiated in the context of a vcpu thread or from the bhyve(8) control process. The first use of this functionality is to update the vlapic trigger-mode register when the IOAPIC pin configuration is changed. Prior to this change we would update the TMR in the virtual-APIC page at the time of interrupt delivery. But this doesn't work with Posted Interrupts because there is no way to program the EOI_exit_bitmap[] in the VMCS of the target at the time of interrupt delivery. Discussed with: grehan@		2014-01-14 01:55:58 +00:00
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amdv.c	Add an API to rendezvous all active vcpus in a virtual machine. The rendezvous	2014-01-14 01:55:58 +00:00