tree fabf7744e8a4193d32b1aeed518369fd501553b8
parent faa4e80071f5114f8113263b5303ac18e7df0a9d
author David Woodhouse <dwmw@amazon.co.uk> 1670089873 -0800
committer David Woodhouse <dwmw@amazon.co.uk> 1677658969 +0000

i386/kvm: Add xen-version KVM accelerator property and init KVM Xen support

This just initializes the basic Xen support in KVM for now. Only permitted
on TYPE_PC_MACHINE because that's where the sysbus devices for Xen heap
overlay, event channel, grant tables and other stuff will exist. There's
no point having the basic hypercall support if nothing else works.

Provide sysemu/kvm_xen.h and a kvm_xen_get_caps() which will be used
later by support devices.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>