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https://github.com/projectacrn/acrn-hypervisor.git
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ce9d5e8779
Provide EFI support for SOS could cause weird issues. For example, hypervisor works based on E820 table whereras it's possible that the memory map from EFI table is not aligned with E820 table. The SOS kernel kaslr will try to find the random address for extracted kernel image in EFI table first. So it's possible that none-RAM in E820 is picked for extracted kernel image. This will make kernel boot fail. This patch removes EFI support for SOS by not passing struct boot_efi_info to SOS kernel zeropage, and reserve a memory to store RSDP table for SOS and pass the RSDP address to SOS kernel zeropage for SOS to locate ACPI table. The patch requires SOS kernel version be high than 4.20, otherwise the kernel might fail to find the RSDP. Tracked-On: #5626 Signed-off-by: Victor Sun <victor.sun@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
34 lines
962 B
C
34 lines
962 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 VACPI_H
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#define VACPI_H
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#include <acpi.h>
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#define ACPI_OEM_ID "ACRN "
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/* Use a pre-loaded multiboot module as pre-launched VM ACPI table.
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* The module file size is fixed to 1MB and loaded to GPA 0x7ff00000.
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* A hardcoded RSDP table at GPA 0x000f2400 will point to the XSDT
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* table which at GPA 0x7ff00080;
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* The module file should be generated by acrn-config tool;
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*/
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#define VIRT_ACPI_DATA_ADDR 0x7ff00000UL
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#define VIRT_ACPI_NVS_ADDR 0x7fff0000UL
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#define VIRT_RSDP_ADDR 0x000f2400UL
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#define VIRT_XSDT_ADDR 0x7ff00080UL
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/* virtual PCI MMCFG address base for pre/post-launched VM. */
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#define UOS_VIRT_PCI_MMCFG_BASE 0xE0000000UL
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#define UOS_VIRT_PCI_MMCFG_START_BUS 0x0U
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#define UOS_VIRT_PCI_MMCFG_END_BUS 0xFFU
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uint64_t get_vrsdp_gpa(struct acrn_vm *vm);
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void build_vrsdp(struct acrn_vm *vm);
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#endif /* VACPI_H */
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