mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-05-03 22:17:03 +00:00
c5e072432a
1. add static for local functions and variables. 2. move vm_sw_loader from vcpu to vm 3. refine uefi.c to follow the code rules. 4. separate uefi.c for vm0 boot and bsp two parts. bsp layer just access native HW related, can't access vm/vcpu, vm0 boot part can access vm / vcpu data structure. Tracked-On: #1842 Signed-off-by: Minggui Cao <minggui.cao@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* Copyright (C) 2018 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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#include <hypervisor.h>
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#include <multiboot.h>
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#include <boot_context.h>
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#include <vm0_boot.h>
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#ifdef CONFIG_EFI_STUB
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static void efi_spurious_handler(int32_t vector)
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{
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if (get_cpu_id() == BOOT_CPU_ID) {
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struct acrn_vcpu *vcpu = per_cpu(vcpu, BOOT_CPU_ID);
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if (vcpu != NULL) {
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vlapic_set_intr(vcpu, vector, 0);
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} else {
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pr_err("%s vcpu or vlapic is not ready, interrupt lost\n", __func__);
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}
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}
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}
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static int32_t uefi_sw_loader(struct acrn_vm *vm)
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{
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int32_t ret = 0;
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struct acrn_vcpu *vcpu = get_primary_vcpu(vm);
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struct acrn_vcpu_regs *vcpu_regs = &boot_context;
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const struct efi_context *efi_ctx = get_efi_ctx();
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const struct lapic_regs *uefi_lapic_regs = get_efi_lapic_regs();
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pr_dbg("Loading guest to run-time location");
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vlapic_restore(vcpu_vlapic(vcpu), uefi_lapic_regs);
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/* For UEFI platform, the bsp init regs come from two places:
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* 1. saved in efi_boot: gpregs, rip
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* 2. saved when HV started: other registers
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* We copy the info saved in efi_boot to boot_context and
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* init bsp with boot_context.
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*/
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memcpy_s(&(vcpu_regs->gprs), sizeof(struct acrn_gp_regs),
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&(efi_ctx->vcpu_regs.gprs), sizeof(struct acrn_gp_regs));
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vcpu_regs->rip = efi_ctx->vcpu_regs.rip;
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set_vcpu_regs(vcpu, vcpu_regs);
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/* defer irq enabling till vlapic is ready */
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CPU_IRQ_ENABLE();
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return ret;
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}
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int32_t efi_boot_init(void)
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{
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vm_sw_loader = uefi_sw_loader;
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spurious_handler = (spurious_handler_t)efi_spurious_handler;
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return 0;
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}
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#endif
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