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https://github.com/projectacrn/acrn-hypervisor.git
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9f684d04e4
Set kernel bootargs through FDT path "/chosen/bootargs". Tracked-On: #8841 Signed-off-by: Yifan Liu <yifan1.liu@intel.com> Acked-by: Wang Yu1 <yu1.wang@intel.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* Copyright (C) 2025 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <vm.h>
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#include <reloc.h>
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#include <vm_config.h>
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#include <libfdt.h>
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#include <vfdt.h>
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#include <fdt_api.h>
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void init_vm_vfdt_common(struct acrn_vm *vm)
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{
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struct acrn_vm_config *vm_config = get_vm_config(vm->vm_id);
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void *fdt = vm_get_vfdt(vm);
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if (vm_config->os_config.bootargs[0] != '\0') {
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fdt_set_kernel_bootargs(fdt, vm_config->os_config.bootargs);
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}
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vm->sw.fdt_info.src_addr = fdt;
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vm->sw.fdt_info.size = fdt_totalsize(fdt);
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/* load addr is initialized in image loader */
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}
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void init_service_vm_vfdt(struct acrn_vm *vm)
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{
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void *fdt = vm_get_vfdt(vm);
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struct acrn_vm_config *vm_config;
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uint16_t vm_id;
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uint64_t i, addr, size;
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/* Re-use host FDT */
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fdt_move(get_host_fdt(), fdt, MAX_FDT_SIZE);
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/* Reserve hypervisor mem range */
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fdt_add_rsvd_node(fdt, get_hv_image_base(), get_hv_image_size());
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/* Remove hv owned devices */
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/* TODO: to be implemented */
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/* Reserve pre-launched VM mem range */
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for (vm_id = 0; vm_id < CONFIG_MAX_VM_NUM; vm_id++) {
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vm_config = get_vm_config(vm_id);
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if (vm_config->load_order == PRE_LAUNCHED_VM) {
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for (i = 0; i < vm_config->memory.region_num; i++) {
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addr = vm_config->memory.host_regions[i].start_hpa;
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size = vm_config->memory.host_regions[i].size_hpa;
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fdt_add_rsvd_node(fdt, addr, size);
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}
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}
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}
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/* Remove pre-launch owned devices */
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/* TODO: to be implemented */
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arch_init_service_vm_vfdt(vm);
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init_vm_vfdt_common(vm);
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}
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