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Merge pull request #540 from jenglamlow/patch-2

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Update link for check_cpu function
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0xAX 2017-11-06 21:48:03 +06:00 committed by GitHub
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Booting/linux-bootstrap-2.md
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@ -343,7 +343,7 @@ CPU validation
The next step as we can see is cpu validation by `validate_cpu` from [arch/x86/boot/cpu.c](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/cpu.c). The next step as we can see is cpu validation by `validate_cpu` from [arch/x86/boot/cpu.c](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/cpu.c).
It calls the [`check_cpu`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/cpucheck.c#L102) function and passes cpu level and required cpu level to it and checks that the kernel launches on the right cpu level. It calls the [`check_cpu`](https://github.com/torvalds/linux/blob/16f73eb02d7e1765ccab3d2018e0bd98eb93d973/arch/x86/boot/cpucheck.c#L112) function and passes cpu level and required cpu level to it and checks that the kernel launches on the right cpu level.
```c ```c
check_cpu(&cpu_level, &req_level, &err_flags); check_cpu(&cpu_level, &req_level, &err_flags);
if (cpu_level < req_level) { if (cpu_level < req_level) {