161491cf4SDavid Woodhouse /* 261491cf4SDavid Woodhouse * Xen HVM emulation support in KVM 361491cf4SDavid Woodhouse * 461491cf4SDavid Woodhouse * Copyright © 2019 Oracle and/or its affiliates. All rights reserved. 561491cf4SDavid Woodhouse * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. 661491cf4SDavid Woodhouse * 761491cf4SDavid Woodhouse * This work is licensed under the terms of the GNU GPL, version 2 or later. 861491cf4SDavid Woodhouse * See the COPYING file in the top-level directory. 961491cf4SDavid Woodhouse * 1061491cf4SDavid Woodhouse */ 1161491cf4SDavid Woodhouse 1261491cf4SDavid Woodhouse #ifndef QEMU_SYSEMU_KVM_XEN_H 1361491cf4SDavid Woodhouse #define QEMU_SYSEMU_KVM_XEN_H 1461491cf4SDavid Woodhouse 15d40ddd52SDavid Woodhouse /* The KVM API uses these to indicate "no GPA" or "no GFN" */ 16d40ddd52SDavid Woodhouse #define INVALID_GPA UINT64_MAX 17d40ddd52SDavid Woodhouse #define INVALID_GFN UINT64_MAX 18d40ddd52SDavid Woodhouse 19d40ddd52SDavid Woodhouse /* QEMU plays the rôle of dom0 for "interdomain" communication. */ 20d40ddd52SDavid Woodhouse #define DOMID_QEMU 0 21d40ddd52SDavid Woodhouse 2279b7067dSJoao Martins int kvm_xen_soft_reset(void); 2361491cf4SDavid Woodhouse uint32_t kvm_xen_get_caps(void); 2427d4075dSDavid Woodhouse void *kvm_xen_get_vcpu_info_hva(uint32_t vcpu_id); 25*18e83f28SDavid Woodhouse bool kvm_xen_has_vcpu_callback_vector(void); 2627d4075dSDavid Woodhouse void kvm_xen_inject_vcpu_callback_vector(uint32_t vcpu_id, int type); 27ddf0fd9aSDavid Woodhouse void kvm_xen_set_callback_asserted(void); 28c723d4c1SDavid Woodhouse int kvm_xen_set_vcpu_virq(uint32_t vcpu_id, uint16_t virq, uint16_t port); 296f43f2eeSDavid Woodhouse uint16_t kvm_xen_get_gnttab_max_frames(void); 30e16aff4cSDavid Woodhouse uint16_t kvm_xen_get_evtchn_max_pirq(void); 3161491cf4SDavid Woodhouse 3261491cf4SDavid Woodhouse #define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() & \ 3361491cf4SDavid Woodhouse KVM_XEN_HVM_CONFIG_ ## cap)) 3461491cf4SDavid Woodhouse 358b57d5c5SDavid Woodhouse #define XEN_SPECIAL_AREA_ADDR 0xfeff8000UL 368b57d5c5SDavid Woodhouse #define XEN_SPECIAL_AREA_SIZE 0x4000UL 378b57d5c5SDavid Woodhouse 388b57d5c5SDavid Woodhouse #define XEN_SPECIALPAGE_CONSOLE 0 398b57d5c5SDavid Woodhouse #define XEN_SPECIALPAGE_XENSTORE 1 408b57d5c5SDavid Woodhouse 418b57d5c5SDavid Woodhouse #define XEN_SPECIAL_PFN(x) ((XEN_SPECIAL_AREA_ADDR >> TARGET_PAGE_BITS) + \ 428b57d5c5SDavid Woodhouse XEN_SPECIALPAGE_##x) 438b57d5c5SDavid Woodhouse 4461491cf4SDavid Woodhouse #endif /* QEMU_SYSEMU_KVM_XEN_H */ 45