函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\microcode\intel.c Create Date:2022-07-27 09:08:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Get microcode matching with BSP's model. Only CPUs with the same model as* BSP can stay in the platform.

函数原型：static struct microcode_intel *scan_microcode(void *data, size_t size, struct ucode_cpu_info *uci, bool save)

返回类型：struct microcode_intel

参数：

类型参数名称
void *data
size_tsize
struct ucode_cpu_info *uci
boolsave
330  struct microcode_intel * patch = NULL
333  当size循环
334  如果size小于sizeof(structmicrocode_header_intel)则退出
337  mc_header等于data
339  mc_size等于get_totalsize(mc_header)
340  如果非mc_size或mc_size大于size或microcode_sanity_check(data, 0)小于0则退出
345  size减等于mc_size
347  如果非Given CPU signature and a microcode patch, this function finds if the* microcode patch has matching family and model with the CPU.* %true - if there's a match* %false - otherwise则
348  data加等于mc_size
349  继续下一循环
352  如果save则
353  save_microcode_patch(data, mc_size)
354  转到:next
358  如果非patch则
359  如果非Returns 1 if update has been found, 0 otherwise.则转到:next
365  否则
366  phdr等于hdr
368  如果非Returns 1 if update has been found, 0 otherwise.则转到:next
376  patch等于data
378  :
379  data加等于mc_size
382  如果size则返回:NULL
385  返回:patch
调用者
名称描述
save_microcode_in_initrd_intel
__load_ucode_intel@res_patch, output: a pointer to the patch we found.