diff options
| author | David Woodhouse <dwmw@amazon.co.uk> | 2022-12-03 09:51:13 -0800 |
|---|---|---|
| committer | David Woodhouse <dwmw@amazon.co.uk> | 2023-03-01 08:22:49 +0000 |
| commit | 61491cf4410423b2d3162143c43b9aeb4ccf7f26 (patch) | |
| tree | fabf7744e8a4193d32b1aeed518369fd501553b8 /include | |
| parent | faa4e80071f5114f8113263b5303ac18e7df0a9d (diff) | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sysemu/kvm_int.h | 2 | ||||
| -rw-r--r-- | include/sysemu/kvm_xen.h | 20 |
2 files changed, 22 insertions, 0 deletions
diff --git a/include/sysemu/kvm_int.h b/include/sysemu/kvm_int.h index 60b520a13e..7f945bc763 100644 --- a/include/sysemu/kvm_int.h +++ b/include/sysemu/kvm_int.h @@ -118,6 +118,8 @@ struct KVMState struct KVMDirtyRingReaper reaper; NotifyVmexitOption notify_vmexit; uint32_t notify_window; + uint32_t xen_version; + uint32_t xen_caps; }; void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml, diff --git a/include/sysemu/kvm_xen.h b/include/sysemu/kvm_xen.h new file mode 100644 index 0000000000..296533f2d5 --- /dev/null +++ b/include/sysemu/kvm_xen.h @@ -0,0 +1,20 @@ +/* + * Xen HVM emulation support in KVM + * + * Copyright © 2019 Oracle and/or its affiliates. All rights reserved. + * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef QEMU_SYSEMU_KVM_XEN_H +#define QEMU_SYSEMU_KVM_XEN_H + +uint32_t kvm_xen_get_caps(void); + +#define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() & \ + KVM_XEN_HVM_CONFIG_ ## cap)) + +#endif /* QEMU_SYSEMU_KVM_XEN_H */ |