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On Saturday 30 Apr 2016 10:05:40 Jonathan Callen wrote: |
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> The proper way to load microcode into the kernel is now to have it be |
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> part of an initramfs (the initramfs doesn't (I think) have to actually |
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> do anything, just have the microcode firmware in the appropriate |
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> location). This is because some things in userspace (like glibc itself) |
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> only check once for certain CPU features at startup, and newer microcode |
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> will actually disable some of those features on some CPUs (because they |
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> are completely broken anyway). This means that loading the microcode |
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> before any userspace programs run will ensure that applications like |
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> /sbin/init won't crash just because a feature they thought they could |
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> use suddenly disappeared. |
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Still, it would be better if all kernel versions behaved the same way in |
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this respect. |
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-- |
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Rgds |
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Peter |
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