Yaya48
cf256aa081
Upstream: https://gitlab.com/qemu-project/qemu.git Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* NMI monitor handler class and helpers definitions.
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*
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* Copyright IBM Corp., 2014
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*
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* Author: Alexey Kardashevskiy <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NMI_H
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#define NMI_H
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#include "qom/object.h"
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#define TYPE_NMI "nmi"
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typedef struct NMIClass NMIClass;
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DECLARE_CLASS_CHECKERS(NMIClass, NMI,
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TYPE_NMI)
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#define NMI(obj) \
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INTERFACE_CHECK(NMIState, (obj), TYPE_NMI)
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typedef struct NMIState NMIState;
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struct NMIClass {
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InterfaceClass parent_class;
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/**
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* raise_nmi: Callback to handle NMI notifications.
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* @ns: Class #NMIState state
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*
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* Called by nmi_inject() to perform the machine-specific
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* action when a NMI is requested.
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*/
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void (*raise_nmi)(NMIState *ns);
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};
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/**
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* nmi_inject: Inject an NMI, in a machine-specific way
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* @errp: pointer to error object
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*
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* This function injects an NMI, in a machine-specific way. The
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* intention is that this should typically trigger a guest kernel
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* dump or reboot, and might happen as a result of user request
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* from the monitor, watchdog timeouts, and similar events.
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* (For example on the x86 PC it triggers an NMI on all CPUs,
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* and on s390 it triggers the RESTART interrupt on the first CPU.)
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*
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* The NMI is injected by looking for a QOM object which implements
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* the TYPE_NMI interface, and calling its raise_nmi method. Usually
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* it is the machine model class that implements this interface.
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*
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* Not all machines implement NMI handling; this function
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* will return an error if used on a machine which does not
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* implement NMIs.
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*
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* On success, return %true.
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* On failure, store an error through @errp and return %false.
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*/
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bool nmi_inject(Error **errp);
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#endif /* NMI_H */
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