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c723d4c15e
Add the array of virq ports to each vCPU so that we can deliver timers, debug ports, etc. Global virqs are allocated against vCPU 0 initially, but can be migrated to other vCPUs (when we implement that). The kernel needs to know about VIRQ_TIMER in order to accelerate timers, so tell it via KVM_XEN_VCPU_ATTR_TYPE_TIMER. Also save/restore the value of the singleshot timer across migration, as the kernel will handle the hypercalls automatically now. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Reviewed-by: Paul Durrant <paul@xen.org>
27 lines
801 B
C
27 lines
801 B
C
/*
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* QEMU Xen emulation: Event channel support
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*
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* Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Authors: David Woodhouse <dwmw2@infradead.org>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_XEN_EVTCHN_H
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#define QEMU_XEN_EVTCHN_H
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void xen_evtchn_create(void);
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int xen_evtchn_set_callback_param(uint64_t param);
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struct evtchn_status;
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struct evtchn_close;
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struct evtchn_unmask;
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struct evtchn_bind_virq;
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int xen_evtchn_status_op(struct evtchn_status *status);
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int xen_evtchn_close_op(struct evtchn_close *close);
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int xen_evtchn_unmask_op(struct evtchn_unmask *unmask);
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int xen_evtchn_bind_virq_op(struct evtchn_bind_virq *virq);
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#endif /* QEMU_XEN_EVTCHN_H */
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