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https://github.com/xen-project/xen.git
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Ian Campbell
3248691679
libxenforeignmemory will provide a stable API and ABI for mapping foreign domain memory (subject to appropriate privileges). The new library exposes an interface equivalent to xc_map_foreign_memory_bulk, which all the other xc_map_foreign_memory_* functions (which remain in libxc) are implemented in terms of. Upon request (via #define XC_WANT_COMPAT_MAP_FOREIGN_API) libxenctrl will provide a compat API for the old names. This is used by qemu-xen and qemu-trad as well as various in tree things (which required de-dupping various #includes in some too to get the #define before the first). Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> [ ijc -- updated MINIOS_UPSTREAM_REVISION and QEMU_TRADITIONAL_REVISION ]
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
/******************************************************************************
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* tools/xenpaging/xenpaging.h
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*
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* Xen domain paging.
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*
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* Copyright (c) 2009 Citrix Systems, Inc. (Patrick Colp)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __XEN_PAGING2_H__
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#define __XEN_PAGING2_H__
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#include <xenevtchn.h>
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#define XC_WANT_COMPAT_MAP_FOREIGN_API
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#include <xenctrl.h>
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#include <xc_private.h>
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#include <xen/event_channel.h>
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#include <xen/vm_event.h>
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#define XENPAGING_PAGEIN_QUEUE_SIZE 64
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struct vm_event {
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domid_t domain_id;
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xenevtchn_handle *xce_handle;
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int port;
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vm_event_back_ring_t back_ring;
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uint32_t evtchn_port;
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void *ring_page;
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};
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struct xenpaging {
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xc_interface *xc_handle;
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struct xs_handle *xs_handle;
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unsigned long *bitmap;
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unsigned long *slot_to_gfn;
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int *gfn_to_slot;
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void *paging_buffer;
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struct vm_event vm_event;
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int fd;
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/* number of pages for which data structures were allocated */
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int max_pages;
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int num_paged_out;
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int target_tot_pages;
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int policy_mru_size;
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int use_poll_timeout;
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int debug;
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int stack_count;
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int *free_slot_stack;
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unsigned long pagein_queue[XENPAGING_PAGEIN_QUEUE_SIZE];
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};
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extern void create_page_in_thread(struct xenpaging *paging);
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extern void page_in_trigger(void);
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#endif // __XEN_PAGING_H__
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/*
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* Local variables:
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* mode: C
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* c-file-style: "BSD"
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* c-basic-offset: 4
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* tab-width: 4
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* indent-tabs-mode: nil
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* End:
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*/
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