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The btsl not only tests the bit, it tests the bit by transfering it into the carry flag and then sets it as well. Otherwise the wrmsr would not make sense. Signed-off-by: Andreas J. Reichel <webmaster@6th-dimension.com> |
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Kernel Boot Process
This chapter describes the linux kernel boot process. Here you will see a series of posts which describes the full cycle of the kernel loading process:
- From the bootloader to kernel - describes all stages from turning on the computer to running the first instruction of the kernel.
- First steps in the kernel setup code - describes first steps in the kernel setup code. You will see heap initialization, query of different parameters like EDD, IST and etc...
- Video mode initialization and transition to protected mode - describes video mode initialization in the kernel setup code and transition to protected mode.
- Transition to 64-bit mode - describes preparation for transition into 64-bit mode and details of transition.
- Kernel Decompression - describes preparation before kernel decompression and details of direct decompression.
- Kernel random address randomization - describes randomization of the Linux kernel load address.
This chapter coincides with Linux kernel v4.17.