mirror of
https://github.com/projectacrn/acrn-hypervisor.git
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fcb95d02d6
this patch save native lapic configuration and restore it to vm0's vlapic before its running, then doing hpet timer interrupt injection through vlapic interface -- this will not mess up vlapic and we can see hpet timer interrupt coming continuously. Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <hypervisor.h>
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#include <hv_lib.h>
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#include <acrn_common.h>
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#include <hv_arch.h>
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#include <hv_debug.h>
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int interrupt_init(uint32_t cpu_id)
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{
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struct host_idt_descriptor *idtd = &HOST_IDTR;
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int status;
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set_idt(idtd);
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status = init_lapic(cpu_id);
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ASSERT(status == 0, "lapic init failed");
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if (status != 0)
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return -ENODEV;
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status = init_default_irqs(cpu_id);
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ASSERT(status == 0, "irqs init failed");
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if (status != 0)
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return -ENODEV;
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#ifndef CONFIG_EFI_STUB
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CPU_IRQ_ENABLE();
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#endif
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return status;
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}
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