780ec86730
| libxc change #1 is to have xfrd's forked child munmap each 4MB batch | of foreign RAM after it's done writing it, rather than unmapping only | the last one and letting the process's exit clean up the rest. This | really does look like a simple mistake, and strictly speaking it's not | that big a deal -- but on NetBSD, the foreign mappings count against | the process's locked memory rlimit as if it were the dom0's own RAM. | | libxc change #2... I don't really understand the problem; it has | something to do with live migration and the domU releasing | pseudo-physical pages after they were sent but before it's suspended. | Except that, for non-live mode, I think it's reporting all the holes | in the pseudo-physical range, even though those pages haven't been | sent. In any case, the result is that the restoring xfrd fails to | decrease_reservation the pages away. And I distinctly recall this | working at least once under Linux with Xen 2, but I have little idea | what NetBSD might be doing differently. Bump PKGREVISION. This, along with a up to date -current kernel, make xm (save|restore) work properly for a linux domU.
105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/* NetBSD: xenio.h,v 1.3 2005/05/24 12:07:12 yamt Exp $ */
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/******************************************************************************
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* privcmd.h
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*
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* Copyright (c) 2003-2004, K A Fraser
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*
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* This file may be distributed separately from the Linux kernel, or
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* incorporated into other software packages, subject to the following license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this source file (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy, modify,
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* merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef __PRIVCMD_H__
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#define __PRIVCMD_H__
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/* Interface to /proc/xen/privcmd */
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typedef struct privcmd_hypercall
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{
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unsigned long op;
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unsigned long arg[5];
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} privcmd_hypercall_t;
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typedef struct privcmd_mmap_entry {
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unsigned long va;
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unsigned long mfn;
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unsigned long npages;
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} privcmd_mmap_entry_t;
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typedef struct privcmd_mmap {
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int num;
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domid_t dom; /* target domain */
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privcmd_mmap_entry_t *entry;
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} privcmd_mmap_t;
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typedef struct privcmd_mmapbatch {
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int num; /* number of pages to populate */
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domid_t dom; /* target domain */
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unsigned long addr; /* virtual address */
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unsigned long *arr; /* array of mfns - top nibble set on err */
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} privcmd_mmapbatch_t;
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typedef struct privcmd_blkmsg
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{
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unsigned long op;
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void *buf;
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int buf_size;
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} privcmd_blkmsg_t;
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/*
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* @cmd: IOCTL_PRIVCMD_HYPERCALL
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* @arg: &privcmd_hypercall_t
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* Return: Value returned from execution of the specified hypercall.
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*/
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#define IOCTL_PRIVCMD_HYPERCALL \
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_IOWR('P', 0, privcmd_hypercall_t)
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#if defined(_KERNEL)
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/* compat */
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#define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN_OLD \
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_IO('P', 1)
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#endif /* defined(_KERNEL) */
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#define IOCTL_PRIVCMD_MMAP \
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_IOW('P', 2, privcmd_mmap_t)
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#define IOCTL_PRIVCMD_MMAPBATCH \
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_IOW('P', 3, privcmd_mmapbatch_t)
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#define IOCTL_PRIVCMD_GET_MACH2PHYS_START_MFN \
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_IOR('P', 4, unsigned long)
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/*
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* @cmd: IOCTL_PRIVCMD_INITDOMAIN_EVTCHN
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* @arg: n/a
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* Return: Port associated with domain-controller end of control event channel
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* for the initial domain.
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*/
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#define IOCTL_PRIVCMD_INITDOMAIN_EVTCHN \
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_IOR('P', 5, int)
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/* Interface to /dev/xenevt */
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/* EVTCHN_RESET: Clear and reinit the event buffer. Clear error condition. */
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#define EVTCHN_RESET _IO('E', 1)
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/* EVTCHN_BIND: Bind to the specified event-channel port. */
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#define EVTCHN_BIND _IOW('E', 2, unsigned long)
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/* EVTCHN_UNBIND: Unbind from the specified event-channel port. */
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#define EVTCHN_UNBIND _IOW('E', 3, unsigned long)
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#endif /* __PRIVCMD_H__ */
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