1*32cad1ffSPhilippe Mathieu-Daudé /* 2*32cad1ffSPhilippe Mathieu-Daudé * Xen HVM emulation support in KVM 3*32cad1ffSPhilippe Mathieu-Daudé * 4*32cad1ffSPhilippe Mathieu-Daudé * Copyright © 2019 Oracle and/or its affiliates. All rights reserved. 5*32cad1ffSPhilippe Mathieu-Daudé * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved. 6*32cad1ffSPhilippe Mathieu-Daudé * 7*32cad1ffSPhilippe Mathieu-Daudé * This work is licensed under the terms of the GNU GPL, version 2 or later. 8*32cad1ffSPhilippe Mathieu-Daudé * See the COPYING file in the top-level directory. 9*32cad1ffSPhilippe Mathieu-Daudé * 10*32cad1ffSPhilippe Mathieu-Daudé */ 11*32cad1ffSPhilippe Mathieu-Daudé 12*32cad1ffSPhilippe Mathieu-Daudé #ifndef QEMU_SYSTEM_KVM_XEN_H 13*32cad1ffSPhilippe Mathieu-Daudé #define QEMU_SYSTEM_KVM_XEN_H 14*32cad1ffSPhilippe Mathieu-Daudé 15*32cad1ffSPhilippe Mathieu-Daudé /* The KVM API uses these to indicate "no GPA" or "no GFN" */ 16*32cad1ffSPhilippe Mathieu-Daudé #define INVALID_GPA UINT64_MAX 17*32cad1ffSPhilippe Mathieu-Daudé #define INVALID_GFN UINT64_MAX 18*32cad1ffSPhilippe Mathieu-Daudé 19*32cad1ffSPhilippe Mathieu-Daudé /* QEMU plays the rôle of dom0 for "interdomain" communication. */ 20*32cad1ffSPhilippe Mathieu-Daudé #define DOMID_QEMU 0 21*32cad1ffSPhilippe Mathieu-Daudé 22*32cad1ffSPhilippe Mathieu-Daudé int kvm_xen_soft_reset(void); 23*32cad1ffSPhilippe Mathieu-Daudé uint32_t kvm_xen_get_caps(void); 24*32cad1ffSPhilippe Mathieu-Daudé void *kvm_xen_get_vcpu_info_hva(uint32_t vcpu_id); 25*32cad1ffSPhilippe Mathieu-Daudé bool kvm_xen_has_vcpu_callback_vector(void); 26*32cad1ffSPhilippe Mathieu-Daudé void kvm_xen_inject_vcpu_callback_vector(uint32_t vcpu_id, int type); 27*32cad1ffSPhilippe Mathieu-Daudé void kvm_xen_set_callback_asserted(void); 28*32cad1ffSPhilippe Mathieu-Daudé int kvm_xen_set_vcpu_virq(uint32_t vcpu_id, uint16_t virq, uint16_t port); 29*32cad1ffSPhilippe Mathieu-Daudé uint16_t kvm_xen_get_gnttab_max_frames(void); 30*32cad1ffSPhilippe Mathieu-Daudé uint16_t kvm_xen_get_evtchn_max_pirq(void); 31*32cad1ffSPhilippe Mathieu-Daudé 32*32cad1ffSPhilippe Mathieu-Daudé #define kvm_xen_has_cap(cap) (!!(kvm_xen_get_caps() & \ 33*32cad1ffSPhilippe Mathieu-Daudé KVM_XEN_HVM_CONFIG_ ## cap)) 34*32cad1ffSPhilippe Mathieu-Daudé 35*32cad1ffSPhilippe Mathieu-Daudé #define XEN_SPECIAL_AREA_ADDR 0xfeff8000UL 36*32cad1ffSPhilippe Mathieu-Daudé #define XEN_SPECIAL_AREA_SIZE 0x4000UL 37*32cad1ffSPhilippe Mathieu-Daudé 38*32cad1ffSPhilippe Mathieu-Daudé #define XEN_SPECIALPAGE_CONSOLE 0 39*32cad1ffSPhilippe Mathieu-Daudé #define XEN_SPECIALPAGE_XENSTORE 1 40*32cad1ffSPhilippe Mathieu-Daudé 41*32cad1ffSPhilippe Mathieu-Daudé #define XEN_SPECIAL_PFN(x) ((XEN_SPECIAL_AREA_ADDR >> TARGET_PAGE_BITS) + \ 42*32cad1ffSPhilippe Mathieu-Daudé XEN_SPECIALPAGE_##x) 43*32cad1ffSPhilippe Mathieu-Daudé 44*32cad1ffSPhilippe Mathieu-Daudé #endif /* QEMU_SYSTEM_KVM_XEN_H */ 45