Implement CPUID feature checks (!5) · Merge requests · redox-os / bootloader

Nagy Tibor requested to merge xTibor/bootloader:cpuid into master Jun 07, 2020

This MR makes the bootloader display an error message instead of hanging with a black screen on incompatible CPUs. A couple people has encountered this black screen so far trying to run Redox on old hardware.

Only tested on QEMU (i386/x86_64). Requires code review and some testing on real hardware.

Implement CPUID feature checks

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