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09a63560f4
The current implement will trigger shutdown vm request on the BSP VCPU on the VM, not the VCPU will trap out because triple fault. However, if the BSP VCPU on the VM is handling another IO emulation, it may overwrite the triple fault IO request on the vhm_request_buffer in function acrn_insert_request. The atomic operation of get_vhm_req_state can't guarantee the vhm_request_buffer will not access by another IO request if it is not running on the corresponding VCPU. So it should trigger triple fault shutdown VM IO request on the VCPU which trap out because of triple fault exception. Besides, rt_vm_pm1a_io_write will do the right thing which we shouldn't do it in triple_fault_shutdown_vm. Tracked-On: #1842 Signed-off-by: Li, Fei1 <fei1.li@intel.com>
23 lines
492 B
C
23 lines
492 B
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef VM_RESET_H_
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#define VM_RESET_H_
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#include <acrn_common.h>
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struct acpi_reset_reg {
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struct acpi_generic_address reg;
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uint8_t val;
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};
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void register_reset_port_handler(struct acrn_vm *vm);
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void shutdown_vm_from_idle(uint16_t pcpu_id);
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void triple_fault_shutdown_vm(struct acrn_vcpu *vcpu);
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struct acpi_reset_reg *get_host_reset_reg_data(void);
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#endif /* VM_RESET_H_ */
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