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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> |
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