Files
xen/tools/libxc/xc_mem_paging.c
T
Ian Campbell 443701ef0c Replace FSF street address with canonical URL
As recommended in http://www.gnu.org/licenses/gpl-howto.en.html.

This is the result of:
$ git grep -El Mass\|Temple\|Franklin | xargs ./fsf.pl

Where fsf.pl is:
    #!/usr/bin/perl -w -pi.bak -0777
    my $repl = 'If not, see <http://www.gnu.org/licenses/>.';
    my $br = qr/(?:\s*\n\s*(?:[\*\#]|\/\/|\.\\" )?\s*|\s+)/;

    my $inwt = qr/[Ii]f${br}not,${br}write${br}(?:to${br})?the${br}Free${br}Software${br}Foundation,(?:${br}Inc\.,)?/;

    my $mass = qr/675${br}Mass${br}Ave,?${br}Cambridge,?${br}MA${br}02139,?${br}USA,?\.?/;
    my $franklin = qr/51${br}Franklin${br}St(?:reet)?(?:,${br}| - )Fifth${br}Floor,?${br}Boston,?${br}MA,?${br}02110-1301,?${br}USA,?\.?/;
    my $temple = qr/59${br}Temple${br}Place(?:,${br}| - )Suite${br}330,?${br}Boston,?${br}MA,?${br}021110?-1307,?${br}USA,?\.?/;

    s|$inwt$br$mass|$repl|m;
    s|$inwt$br$franklin|$repl|m;
    s|$inwt$br$temple|$repl|m;

The only remaining mentions of these addresses are in COPYING files which I
haven't touched.

Some of the changed files are imports from elsewhere, however
filtering them out is tricky, I think it is tolerable to have these
files be modified here and then perhaps reverted on the next sync,
since it's only 1-2 lines and obvious what is going on.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2015-07-29 11:14:07 +01:00

128 lines
3.5 KiB
C

/******************************************************************************
*
* tools/libxc/xc_mem_paging.c
*
* Interface to low-level memory paging functionality.
*
* Copyright (c) 2009 by Citrix Systems, Inc. (Patrick Colp)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; If not, see <http://www.gnu.org/licenses/>.
*/
#include "xc_private.h"
static int xc_mem_paging_memop(xc_interface *xch, domid_t domain_id,
unsigned int op, uint64_t gfn, void *buffer)
{
xen_mem_paging_op_t mpo;
memset(&mpo, 0, sizeof(mpo));
mpo.op = op;
mpo.domain = domain_id;
mpo.gfn = gfn;
mpo.buffer = (unsigned long) buffer;
return do_memory_op(xch, XENMEM_paging_op, &mpo, sizeof(mpo));
}
int xc_mem_paging_enable(xc_interface *xch, domid_t domain_id,
uint32_t *port)
{
if ( !port )
{
errno = EINVAL;
return -1;
}
return xc_vm_event_control(xch, domain_id,
XEN_VM_EVENT_ENABLE,
XEN_DOMCTL_VM_EVENT_OP_PAGING,
port);
}
int xc_mem_paging_disable(xc_interface *xch, domid_t domain_id)
{
return xc_vm_event_control(xch, domain_id,
XEN_VM_EVENT_DISABLE,
XEN_DOMCTL_VM_EVENT_OP_PAGING,
NULL);
}
int xc_mem_paging_resume(xc_interface *xch, domid_t domain_id)
{
return xc_vm_event_control(xch, domain_id,
XEN_VM_EVENT_RESUME,
XEN_DOMCTL_VM_EVENT_OP_PAGING,
NULL);
}
int xc_mem_paging_nominate(xc_interface *xch, domid_t domain_id, uint64_t gfn)
{
return xc_mem_paging_memop(xch, domain_id,
XENMEM_paging_op_nominate,
gfn, NULL);
}
int xc_mem_paging_evict(xc_interface *xch, domid_t domain_id, uint64_t gfn)
{
return xc_mem_paging_memop(xch, domain_id,
XENMEM_paging_op_evict,
gfn, NULL);
}
int xc_mem_paging_prep(xc_interface *xch, domid_t domain_id, uint64_t gfn)
{
return xc_mem_paging_memop(xch, domain_id,
XENMEM_paging_op_prep,
gfn, NULL);
}
int xc_mem_paging_load(xc_interface *xch, domid_t domain_id,
uint64_t gfn, void *buffer)
{
int rc, old_errno;
errno = EINVAL;
if ( !buffer )
return -1;
if ( ((unsigned long) buffer) & (XC_PAGE_SIZE - 1) )
return -1;
if ( mlock(buffer, XC_PAGE_SIZE) )
return -1;
rc = xc_mem_paging_memop(xch, domain_id,
XENMEM_paging_op_prep,
gfn, buffer);
old_errno = errno;
munlock(buffer, XC_PAGE_SIZE);
errno = old_errno;
return rc;
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/