191cce756SDavid Woodhouse /* 291cce756SDavid Woodhouse * QEMU Xen emulation: Event channel support 391cce756SDavid Woodhouse * 491cce756SDavid Woodhouse * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. 591cce756SDavid Woodhouse * 691cce756SDavid Woodhouse * Authors: David Woodhouse <dwmw2@infradead.org> 791cce756SDavid Woodhouse * 891cce756SDavid Woodhouse * This work is licensed under the terms of the GNU GPL, version 2 or later. 991cce756SDavid Woodhouse * See the COPYING file in the top-level directory. 1091cce756SDavid Woodhouse */ 1191cce756SDavid Woodhouse 1291cce756SDavid Woodhouse #ifndef QEMU_XEN_EVTCHN_H 1391cce756SDavid Woodhouse #define QEMU_XEN_EVTCHN_H 1491cce756SDavid Woodhouse 15ddf0fd9aSDavid Woodhouse #include "hw/sysbus.h" 16ddf0fd9aSDavid Woodhouse 17794fba23SDavid Woodhouse typedef uint32_t evtchn_port_t; 18794fba23SDavid Woodhouse 1991cce756SDavid Woodhouse void xen_evtchn_create(void); 20a15b1097SDavid Woodhouse int xen_evtchn_soft_reset(void); 2191cce756SDavid Woodhouse int xen_evtchn_set_callback_param(uint64_t param); 22ddf0fd9aSDavid Woodhouse void xen_evtchn_connect_gsis(qemu_irq *system_gsis); 23ddf0fd9aSDavid Woodhouse void xen_evtchn_set_callback_level(int level); 2491cce756SDavid Woodhouse 25b746a779SJoao Martins int xen_evtchn_set_port(uint16_t port); 26b746a779SJoao Martins 274f81baa3SDavid Woodhouse bool xen_evtchn_set_gsi(int gsi, int level); 28*6096cf78SDavid Woodhouse void xen_evtchn_snoop_msi(PCIDevice *dev, bool is_msix, unsigned int vector, 29*6096cf78SDavid Woodhouse uint64_t addr, uint32_t data, bool is_masked); 30*6096cf78SDavid Woodhouse void xen_evtchn_remove_pci_device(PCIDevice *dev); 31*6096cf78SDavid Woodhouse struct kvm_irq_routing_entry; 32*6096cf78SDavid Woodhouse int xen_evtchn_translate_pirq_msi(struct kvm_irq_routing_entry *route, 33*6096cf78SDavid Woodhouse uint64_t address, uint32_t data); 34*6096cf78SDavid Woodhouse bool xen_evtchn_deliver_pirq_msi(uint64_t address, uint32_t data); 35*6096cf78SDavid Woodhouse 364f81baa3SDavid Woodhouse 37794fba23SDavid Woodhouse /* 38794fba23SDavid Woodhouse * These functions mirror the libxenevtchn library API, providing the QEMU 39794fba23SDavid Woodhouse * backend side of "interdomain" event channels. 40794fba23SDavid Woodhouse */ 41794fba23SDavid Woodhouse struct xenevtchn_handle; 42794fba23SDavid Woodhouse struct xenevtchn_handle *xen_be_evtchn_open(void); 43794fba23SDavid Woodhouse int xen_be_evtchn_bind_interdomain(struct xenevtchn_handle *xc, uint32_t domid, 44794fba23SDavid Woodhouse evtchn_port_t guest_port); 45794fba23SDavid Woodhouse int xen_be_evtchn_unbind(struct xenevtchn_handle *xc, evtchn_port_t port); 46794fba23SDavid Woodhouse int xen_be_evtchn_close(struct xenevtchn_handle *xc); 47794fba23SDavid Woodhouse int xen_be_evtchn_fd(struct xenevtchn_handle *xc); 48794fba23SDavid Woodhouse int xen_be_evtchn_notify(struct xenevtchn_handle *xc, evtchn_port_t port); 49794fba23SDavid Woodhouse int xen_be_evtchn_unmask(struct xenevtchn_handle *xc, evtchn_port_t port); 50794fba23SDavid Woodhouse int xen_be_evtchn_pending(struct xenevtchn_handle *xc); 51794fba23SDavid Woodhouse /* Apart from this which is a local addition */ 52794fba23SDavid Woodhouse int xen_be_evtchn_get_guest_port(struct xenevtchn_handle *xc); 53794fba23SDavid Woodhouse 544858ba20SDavid Woodhouse struct evtchn_status; 5583eb5811SDavid Woodhouse struct evtchn_close; 56190cc3c0SDavid Woodhouse struct evtchn_unmask; 57c723d4c1SDavid Woodhouse struct evtchn_bind_virq; 58aa98ee38SDavid Woodhouse struct evtchn_bind_pirq; 59f5417856SDavid Woodhouse struct evtchn_bind_ipi; 60cf7679abSDavid Woodhouse struct evtchn_send; 61e1db61b8SDavid Woodhouse struct evtchn_alloc_unbound; 6284327881SDavid Woodhouse struct evtchn_bind_interdomain; 6330667046SDavid Woodhouse struct evtchn_bind_vcpu; 64a15b1097SDavid Woodhouse struct evtchn_reset; 654858ba20SDavid Woodhouse int xen_evtchn_status_op(struct evtchn_status *status); 6683eb5811SDavid Woodhouse int xen_evtchn_close_op(struct evtchn_close *close); 67190cc3c0SDavid Woodhouse int xen_evtchn_unmask_op(struct evtchn_unmask *unmask); 68c723d4c1SDavid Woodhouse int xen_evtchn_bind_virq_op(struct evtchn_bind_virq *virq); 69aa98ee38SDavid Woodhouse int xen_evtchn_bind_pirq_op(struct evtchn_bind_pirq *pirq); 70f5417856SDavid Woodhouse int xen_evtchn_bind_ipi_op(struct evtchn_bind_ipi *ipi); 71cf7679abSDavid Woodhouse int xen_evtchn_send_op(struct evtchn_send *send); 72e1db61b8SDavid Woodhouse int xen_evtchn_alloc_unbound_op(struct evtchn_alloc_unbound *alloc); 7384327881SDavid Woodhouse int xen_evtchn_bind_interdomain_op(struct evtchn_bind_interdomain *interdomain); 7430667046SDavid Woodhouse int xen_evtchn_bind_vcpu_op(struct evtchn_bind_vcpu *vcpu); 75a15b1097SDavid Woodhouse int xen_evtchn_reset_op(struct evtchn_reset *reset); 764858ba20SDavid Woodhouse 77799c2354SDavid Woodhouse struct physdev_map_pirq; 78799c2354SDavid Woodhouse struct physdev_unmap_pirq; 79799c2354SDavid Woodhouse struct physdev_eoi; 80799c2354SDavid Woodhouse struct physdev_irq_status_query; 81799c2354SDavid Woodhouse struct physdev_get_free_pirq; 82799c2354SDavid Woodhouse int xen_physdev_map_pirq(struct physdev_map_pirq *map); 83799c2354SDavid Woodhouse int xen_physdev_unmap_pirq(struct physdev_unmap_pirq *unmap); 84799c2354SDavid Woodhouse int xen_physdev_eoi_pirq(struct physdev_eoi *eoi); 85799c2354SDavid Woodhouse int xen_physdev_query_pirq(struct physdev_irq_status_query *query); 86799c2354SDavid Woodhouse int xen_physdev_get_free_pirq(struct physdev_get_free_pirq *get); 87799c2354SDavid Woodhouse 8891cce756SDavid Woodhouse #endif /* QEMU_XEN_EVTCHN_H */ 89