fixrsdp

command
v7.0.0+incompatible Latest Latest
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Published: Aug 31, 2020 License: BSD-3-Clause Imports: 6 Imported by: 0

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Overview

fixrsdp copies the existing RSDP into the EBDA region in low mem.

This is because LinuxBoot tends to be EFI booted, which places the RSDP outside of the low 1M or the EBDA. If Linuxboot legacy boots the following operating systems, such as with kexec, they may not have a way to find the RSDP afterwards. All u-root commands that open /dev/mem should also flock it to ensure safe, sequential access.

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