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Ian Campbell
443701ef0c
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>
242 lines
6.6 KiB
C
242 lines
6.6 KiB
C
/******************************************************************************
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*
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* xc_memshr.c
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*
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* Interface to low-level memory sharing functionality.
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*
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* Copyright (c) 2009 Citrix Systems, Inc. (Grzegorz Milos)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "xc_private.h"
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#include <xen/memory.h>
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#include <xen/grant_table.h>
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int xc_memshr_control(xc_interface *xch,
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domid_t domid,
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int enable)
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{
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DECLARE_DOMCTL;
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struct xen_domctl_mem_sharing_op *op;
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domctl.cmd = XEN_DOMCTL_mem_sharing_op;
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domctl.interface_version = XEN_DOMCTL_INTERFACE_VERSION;
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domctl.domain = domid;
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op = &(domctl.u.mem_sharing_op);
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op->op = XEN_DOMCTL_MEM_SHARING_CONTROL;
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op->u.enable = enable;
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return do_domctl(xch, &domctl);
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}
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int xc_memshr_ring_enable(xc_interface *xch,
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domid_t domid,
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uint32_t *port)
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{
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if ( !port )
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{
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errno = EINVAL;
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return -1;
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}
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return xc_vm_event_control(xch, domid,
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XEN_VM_EVENT_ENABLE,
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XEN_DOMCTL_VM_EVENT_OP_SHARING,
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port);
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}
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int xc_memshr_ring_disable(xc_interface *xch,
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domid_t domid)
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{
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return xc_vm_event_control(xch, domid,
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XEN_VM_EVENT_DISABLE,
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XEN_DOMCTL_VM_EVENT_OP_SHARING,
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NULL);
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}
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static int xc_memshr_memop(xc_interface *xch, domid_t domid,
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xen_mem_sharing_op_t *mso)
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{
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mso->domain = domid;
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return do_memory_op(xch, XENMEM_sharing_op, mso, sizeof(*mso));
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}
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int xc_memshr_nominate_gfn(xc_interface *xch,
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domid_t domid,
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unsigned long gfn,
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uint64_t *handle)
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{
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int rc;
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_nominate_gfn;
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mso.u.nominate.u.gfn = gfn;
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rc = xc_memshr_memop(xch, domid, &mso);
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if (!rc) *handle = mso.u.nominate.handle;
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return rc;
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}
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int xc_memshr_nominate_gref(xc_interface *xch,
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domid_t domid,
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grant_ref_t gref,
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uint64_t *handle)
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{
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int rc;
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_nominate_gref;
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mso.u.nominate.u.grant_ref = gref;
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rc = xc_memshr_memop(xch, domid, &mso);
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if (!rc) *handle = mso.u.nominate.handle;
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return rc;
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}
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int xc_memshr_share_gfns(xc_interface *xch,
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domid_t source_domain,
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unsigned long source_gfn,
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uint64_t source_handle,
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domid_t client_domain,
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unsigned long client_gfn,
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uint64_t client_handle)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_share;
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mso.u.share.source_handle = source_handle;
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mso.u.share.source_gfn = source_gfn;
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mso.u.share.client_domain = client_domain;
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mso.u.share.client_gfn = client_gfn;
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mso.u.share.client_handle = client_handle;
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return xc_memshr_memop(xch, source_domain, &mso);
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}
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int xc_memshr_share_grefs(xc_interface *xch,
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domid_t source_domain,
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grant_ref_t source_gref,
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uint64_t source_handle,
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domid_t client_domain,
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grant_ref_t client_gref,
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uint64_t client_handle)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_share;
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mso.u.share.source_handle = source_handle;
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XENMEM_SHARING_OP_FIELD_MAKE_GREF(mso.u.share.source_gfn, source_gref);
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mso.u.share.client_domain = client_domain;
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XENMEM_SHARING_OP_FIELD_MAKE_GREF(mso.u.share.client_gfn, client_gref);
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mso.u.share.client_handle = client_handle;
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return xc_memshr_memop(xch, source_domain, &mso);
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}
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int xc_memshr_add_to_physmap(xc_interface *xch,
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domid_t source_domain,
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unsigned long source_gfn,
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uint64_t source_handle,
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domid_t client_domain,
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unsigned long client_gfn)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_add_physmap;
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mso.u.share.source_handle = source_handle;
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mso.u.share.source_gfn = source_gfn;
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mso.u.share.client_domain = client_domain;
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mso.u.share.client_gfn = client_gfn;
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return xc_memshr_memop(xch, source_domain, &mso);
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}
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int xc_memshr_domain_resume(xc_interface *xch,
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domid_t domid)
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{
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return xc_vm_event_control(xch, domid,
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XEN_VM_EVENT_RESUME,
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XEN_DOMCTL_VM_EVENT_OP_SHARING,
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NULL);
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}
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int xc_memshr_debug_gfn(xc_interface *xch,
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domid_t domid,
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unsigned long gfn)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_debug_gfn;
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mso.u.debug.u.gfn = gfn;
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return xc_memshr_memop(xch, domid, &mso);
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}
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int xc_memshr_debug_gref(xc_interface *xch,
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domid_t domid,
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grant_ref_t gref)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_debug_gref;
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mso.u.debug.u.gref = gref;
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return xc_memshr_memop(xch, domid, &mso);
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}
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int xc_memshr_audit(xc_interface *xch)
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{
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xen_mem_sharing_op_t mso;
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memset(&mso, 0, sizeof(mso));
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mso.op = XENMEM_sharing_op_audit;
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return do_memory_op(xch, XENMEM_sharing_op, &mso, sizeof(mso));
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}
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long xc_sharing_freed_pages(xc_interface *xch)
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{
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return do_memory_op(xch, XENMEM_get_sharing_freed_pages, NULL, 0);
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}
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long xc_sharing_used_frames(xc_interface *xch)
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{
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return do_memory_op(xch, XENMEM_get_sharing_shared_pages, NULL, 0);
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}
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