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9139b46a6b
This looks for existance of DMAR (Intel) and IVRS (AMD) files under /sys/firmware/acpi/tables/, as a sign that the platform has IOMMU present & enabled in the BIOS. If these are present and /sys/kernel/iommu_groups does not contain any entries this is taken as a sign that the kernel has not enabled the IOMMU currently. If no ACPI tables are found we can't distinguish between disabled in BIOS and not present in the hardware, so we have to give the user a generic hint. Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*
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* virt-host-validate-common.h: Sanity check helper APIs
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*
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* Copyright (C) 2012 Red Hat, Inc.
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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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*/
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#ifndef __VIRT_HOST_VALIDATE_COMMON_H__
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# define __VIRT_HOST_VALIDATE_COMMON_H__
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# include "internal.h"
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typedef enum {
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VIR_HOST_VALIDATE_FAIL,
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VIR_HOST_VALIDATE_WARN,
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VIR_HOST_VALIDATE_NOTE,
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VIR_HOST_VALIDATE_LAST,
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} virHostValidateLevel;
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extern void virHostMsgSetQuiet(bool quietFlag);
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extern void virHostMsgCheck(const char *prefix,
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const char *format,
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...) ATTRIBUTE_FMT_PRINTF(2, 3);
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extern void virHostMsgPass(void);
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extern void virHostMsgFail(virHostValidateLevel level,
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const char *format,
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...) ATTRIBUTE_FMT_PRINTF(2, 3);
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extern int virHostValidateDeviceExists(const char *hvname,
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const char *dev_name,
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virHostValidateLevel level,
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const char *hint);
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extern int virHostValidateDeviceAccessible(const char *hvname,
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const char *dev_name,
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virHostValidateLevel level,
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const char *hint);
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extern bool virHostValidateHasCPUFlag(const char *name);
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extern int virHostValidateLinuxKernel(const char *hvname,
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int version,
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virHostValidateLevel level,
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const char *hint);
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extern int virHostValidateNamespace(const char *hvname,
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const char *ns_name,
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virHostValidateLevel level,
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const char *hint);
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extern int virHostValidateCGroupController(const char *hvname,
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const char *cg_name,
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virHostValidateLevel level,
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const char *config_name);
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extern int virHostValidateIOMMU(const char *hvname,
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virHostValidateLevel level);
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#endif /* __VIRT_HOST_VALIDATE_COMMON_H__ */
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