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resctrl: Add functions to work with resctrl allocations
With this commit we finally have a way to read and manipulate basic resctrl settings. Locking is done only on exposed functions that read/write from/to resctrlfs. Not in functions that are exposed in virresctrlpriv.h as those are only supposed to be used from tests. More information about how resctrl works: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/x86/intel_rdt_ui.txt Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
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@ -167,7 +167,7 @@ UTIL_SOURCES = \
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util/virprocess.c util/virprocess.h \
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util/virprocess.c util/virprocess.h \
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util/virqemu.c util/virqemu.h \
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util/virqemu.c util/virqemu.h \
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util/virrandom.h util/virrandom.c \
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util/virrandom.h util/virrandom.c \
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util/virresctrl.h util/virresctrl.c \
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util/virresctrl.h util/virresctrl.c util/virresctrlpriv.h \
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util/virrotatingfile.h util/virrotatingfile.c \
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util/virrotatingfile.h util/virrotatingfile.c \
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util/virscsi.c util/virscsi.h \
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util/virscsi.c util/virscsi.h \
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util/virscsihost.c util/virscsihost.h \
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util/virscsihost.c util/virscsihost.h \
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@ -2552,6 +2552,16 @@ virRandomInt;
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# util/virresctrl.h
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# util/virresctrl.h
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virCacheTypeFromString;
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virCacheTypeFromString;
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virCacheTypeToString;
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virCacheTypeToString;
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virResctrlAllocAddPID;
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virResctrlAllocCreate;
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virResctrlAllocForeachSize;
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virResctrlAllocFormat;
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virResctrlAllocGetID;
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virResctrlAllocGetUnused;
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virResctrlAllocNew;
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virResctrlAllocRemove;
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virResctrlAllocSetID;
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virResctrlAllocSetSize;
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virResctrlGetInfo;
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virResctrlGetInfo;
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virResctrlInfoGetCache;
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virResctrlInfoGetCache;
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virResctrlInfoNew;
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virResctrlInfoNew;
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File diff suppressed because it is too large
Load Diff
@ -65,4 +65,53 @@ virResctrlInfoGetCache(virResctrlInfoPtr resctrl,
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size_t *ncontrols,
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size_t *ncontrols,
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virResctrlInfoPerCachePtr **controls);
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virResctrlInfoPerCachePtr **controls);
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/* Alloc-related things */
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typedef struct _virResctrlAlloc virResctrlAlloc;
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typedef virResctrlAlloc *virResctrlAllocPtr;
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typedef int virResctrlAllocForeachSizeCallback(unsigned int level,
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virCacheType type,
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unsigned int cache,
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unsigned long long size,
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void *opaque);
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virResctrlAllocPtr
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virResctrlAllocNew(void);
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bool
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virResctrlAllocIsEmpty(virResctrlAllocPtr resctrl);
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int
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virResctrlAllocSetSize(virResctrlAllocPtr resctrl,
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unsigned int level,
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virCacheType type,
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unsigned int cache,
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unsigned long long size);
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int
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virResctrlAllocForeachSize(virResctrlAllocPtr resctrl,
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virResctrlAllocForeachSizeCallback cb,
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void *opaque);
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int
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virResctrlAllocSetID(virResctrlAllocPtr alloc,
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const char *id);
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const char *
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virResctrlAllocGetID(virResctrlAllocPtr alloc);
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char *
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virResctrlAllocFormat(virResctrlAllocPtr alloc);
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int
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virResctrlAllocCreate(virResctrlInfoPtr r_info,
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virResctrlAllocPtr alloc,
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const char *machinename);
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int
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virResctrlAllocAddPID(virResctrlAllocPtr alloc,
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pid_t pid);
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int
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virResctrlAllocRemove(virResctrlAllocPtr alloc);
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#endif /* __VIR_RESCTRL_H__ */
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#endif /* __VIR_RESCTRL_H__ */
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27
src/util/virresctrlpriv.h
Normal file
27
src/util/virresctrlpriv.h
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@ -0,0 +1,27 @@
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/*
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* virresctrlpriv.h:
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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
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef __VIR_RESCTRL_PRIV_H__
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# define __VIR_RESCTRL_PRIV_H__
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# include "virresctrl.h"
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virResctrlAllocPtr
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virResctrlAllocGetUnused(virResctrlInfoPtr resctrl);
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#endif /* __VIR_RESCTRL_PRIV_H__ */
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