libvirt/src/util/virhostcpu.h
Paolo Bonzini 04502fd54f util: introduce virHostCPUGetMicrocodeVersion
This new API reads host's CPU microcode version from /proc/cpuinfo.

Unfortunately, there is no other way of reading microcode version which
would be usable from both system and session daemon.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2018-01-04 16:52:03 +01:00

72 lines
2.3 KiB
C

/*
* virhostcpu.h: helper APIs for host CPU info
*
* Copyright (C) 2006-2016 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* 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/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_HOSTCPU_H__
# define __VIR_HOSTCPU_H__
# include "internal.h"
# include "virarch.h"
# include "virbitmap.h"
int virHostCPUGetStats(int cpuNum,
virNodeCPUStatsPtr params,
int *nparams,
unsigned int flags);
bool virHostCPUHasBitmap(void);
virBitmapPtr virHostCPUGetPresentBitmap(void);
virBitmapPtr virHostCPUGetOnlineBitmap(void);
int virHostCPUGetCount(void);
int virHostCPUGetThreadsPerSubcore(virArch arch) ATTRIBUTE_NOINLINE;
int virHostCPUGetMap(unsigned char **cpumap,
unsigned int *online,
unsigned int flags);
int virHostCPUGetInfo(virArch hostarch,
unsigned int *cpus,
unsigned int *mhz,
unsigned int *nodes,
unsigned int *sockets,
unsigned int *cores,
unsigned int *threads);
int virHostCPUGetKVMMaxVCPUs(void) ATTRIBUTE_NOINLINE;
int virHostCPUStatsAssign(virNodeCPUStatsPtr param,
const char *name,
unsigned long long value);
# ifdef __linux__
int virHostCPUGetSocket(unsigned int cpu, unsigned int *socket);
int virHostCPUGetCore(unsigned int cpu, unsigned int *core);
virBitmapPtr virHostCPUGetSiblingsList(unsigned int cpu);
# endif
int virHostCPUGetOnline(unsigned int cpu, bool *online);
unsigned int virHostCPUGetMicrocodeVersion(void);
#endif /* __VIR_HOSTCPU_H__*/