libvirt/src/qemu/qemu_capspriv.h
Jiri Denemark 25ba9c31f5 qemu: Enable KVM when probing capabilities
CPU related capabilities may differ depending on accelerator used when
probing. Let's use KVM if available when probing QEMU and fall back to
TCG. The created capabilities already contain all we need to distinguish
whether KVM or TCG was used:

    - KVM was used when probing capabilities:
        QEMU_CAPS_KVM is set
        QEMU_CAPS_ENABLE_KVM is not set

    - TCG was used and QEMU supports KVM, but it failed (e.g., missing
      kernel module or wrong /dev/kvm permissions)
        QEMU_CAPS_KVM is not set
        QEMU_CAPS_ENABLE_KVM is set

    - KVM was not used and QEMU does not support it
        QEMU_CAPS_KVM is not set
        QEMU_CAPS_ENABLE_KVM is not set

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-25 20:34:26 +01:00

76 lines
2.4 KiB
C

/*
* qemu_capspriv.h: private declarations for QEMU capabilities generation
*
* Copyright (C) 2015 Samsung Electronics Co. Ltd
* Copyright (C) 2015 Pavel Fedin
*
* 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: Pavel Fedin <p.fedin@samsung.com>
*/
#ifndef __QEMU_CAPSRIV_H_ALLOW__
# error "qemu_capspriv.h may only be included by qemu_capabilities.c or test suites"
#endif
#ifndef __QEMU_CAPSPRIV_H__
# define __QEMU_CAPSPRIV_H__
struct _virQEMUCapsCache {
virMutex lock;
virHashTablePtr binaries;
char *libDir;
char *cacheDir;
uid_t runUid;
gid_t runGid;
};
virQEMUCapsPtr virQEMUCapsNewCopy(virQEMUCapsPtr qemuCaps);
virQEMUCapsPtr
virQEMUCapsNewForBinaryInternal(virCapsPtr caps,
const char *binary,
const char *libDir,
const char *cacheDir,
uid_t runUid,
gid_t runGid,
bool qmpOnly);
int virQEMUCapsLoadCache(virCapsPtr caps,
virQEMUCapsPtr qemuCaps,
const char *filename,
time_t *selfctime,
unsigned long *selfvers);
char *virQEMUCapsFormatCache(virQEMUCapsPtr qemuCaps,
time_t selfCTime,
unsigned long selfVersion);
int
virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon);
int
virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon);
void
virQEMUCapsSetArch(virQEMUCapsPtr qemuCaps,
virArch arch);
void
virQEMUCapsInitHostCPUModel(virQEMUCapsPtr qemuCaps,
virCapsPtr caps);
#endif