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/*
* hvm.h: Hardware virtual machine assist interface definitions.
*
* Copyright (c) 2016 Citrix Systems Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_X86_HVM_IOREQ_H__
#define __ASM_X86_HVM_IOREQ_H__
#define HANDLE_BUFIOREQ(s) \
((s)->bufioreq_handling != HVM_IOREQSRV_BUFIOREQ_OFF)
bool arch_vcpu_ioreq_completion(enum hvm_io_completion io_completion);
int arch_ioreq_server_map_pages(struct hvm_ioreq_server *s);
void arch_ioreq_server_unmap_pages(struct hvm_ioreq_server *s);
void arch_ioreq_server_enable(struct hvm_ioreq_server *s);
void arch_ioreq_server_disable(struct hvm_ioreq_server *s);
void arch_ioreq_server_destroy(struct hvm_ioreq_server *s);
int arch_ioreq_server_map_mem_type(struct domain *d,
struct hvm_ioreq_server *s,
uint32_t flags);
bool arch_ioreq_server_destroy_all(struct domain *d);
int arch_ioreq_server_get_type_addr(const struct domain *d,
const ioreq_t *p,
uint8_t *type,
uint64_t *addr);
void arch_ioreq_domain_init(struct domain *d);
bool hvm_io_pending(struct vcpu *v);
bool handle_hvm_io_completion(struct vcpu *v);
bool is_ioreq_server_page(struct domain *d, const struct page_info *page);
int hvm_create_ioreq_server(struct domain *d, int bufioreq_handling,
ioservid_t *id);
int hvm_destroy_ioreq_server(struct domain *d, ioservid_t id);
int hvm_get_ioreq_server_info(struct domain *d, ioservid_t id,
unsigned long *ioreq_gfn,
unsigned long *bufioreq_gfn,
evtchn_port_t *bufioreq_port);
int hvm_get_ioreq_server_frame(struct domain *d, ioservid_t id,
unsigned long idx, mfn_t *mfn);
int hvm_map_io_range_to_ioreq_server(struct domain *d, ioservid_t id,
uint32_t type, uint64_t start,
uint64_t end);
int hvm_unmap_io_range_from_ioreq_server(struct domain *d, ioservid_t id,
uint32_t type, uint64_t start,
uint64_t end);
int hvm_map_mem_type_to_ioreq_server(struct domain *d, ioservid_t id,
uint32_t type, uint32_t flags);
int hvm_set_ioreq_server_state(struct domain *d, ioservid_t id,
bool enabled);
int hvm_all_ioreq_servers_add_vcpu(struct domain *d, struct vcpu *v);
void hvm_all_ioreq_servers_remove_vcpu(struct domain *d, struct vcpu *v);
void hvm_destroy_all_ioreq_servers(struct domain *d);
struct hvm_ioreq_server *hvm_select_ioreq_server(struct domain *d,
ioreq_t *p);
int hvm_send_ioreq(struct hvm_ioreq_server *s, ioreq_t *proto_p,
bool buffered);
unsigned int hvm_broadcast_ioreq(ioreq_t *p, bool buffered);
void hvm_ioreq_init(struct domain *d);
#endif /* __ASM_X86_HVM_IOREQ_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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