55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* Copyright (C) 2014 - Linaro
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* Author: Rob Herring <rob.herring@linaro.org>
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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, or
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* (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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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/helper-proto.h"
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#include "internals.h"
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bool arm_is_psci_call(ARMCPU *cpu, int excp_type)
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{
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/* Return true if the r0/x0 value indicates a PSCI call and
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* the exception type matches the configured PSCI conduit. This is
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* called before the SMC/HVC instruction is executed, to decide whether
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* we should treat it as a PSCI call or with the architecturally
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* defined behaviour for an SMC or HVC (which might be UNDEF or trap
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* to EL2 or to EL3).
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*/
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switch (excp_type) {
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case EXCP_HVC:
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if (cpu->psci_conduit != QEMU_PSCI_CONDUIT_HVC) {
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return false;
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}
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break;
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case EXCP_SMC:
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if (cpu->psci_conduit != QEMU_PSCI_CONDUIT_SMC) {
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return false;
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}
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break;
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default:
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return false;
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}
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return false;
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}
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void arm_handle_psci_call(ARMCPU *cpu)
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{
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}
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