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Merge pull request #822 from kagurazakakotori/patch-1

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Correct the description of check_cpu()
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0xAX 2022-11-20 15:13:55 +06:00 committed by GitHub
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Booting/linux-bootstrap-2.md
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@ -358,7 +358,7 @@ if (cpu_level < req_level) {
}
```
The `check_cpu` function checks the CPU's flags, the presence of [long mode](http://en.wikipedia.org/wiki/Long_mode) in the case of x86_64(64-bit) CPU, checks the processor's vendor and makes preparations for certain vendors like turning off SSE+SSE2 for AMD if they are missing, etc.
The `check_cpu` function checks the CPU's flags, the presence of [long mode](http://en.wikipedia.org/wiki/Long_mode) in the case of x86_64(64-bit) CPU, checks the processor's vendor and makes preparations for certain vendors like turning on SSE+SSE2 for AMD if they are missing, etc.
at the next step, we may see a call to the `set_bios_mode` function after setup code found that a CPU is suitable. As we may see, this function is implemented only for the `x86_64` mode: