mirror of
https://github.com/MintCN/linux-insides-zh.git
synced 2026-05-11 19:17:10 +08:00
unify the github repo
This commit is contained in:
Dongliang Mu
@@ -611,7 +611,7 @@ write_cr3(__pa_nodebug(early_level4_pgt));
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第一部分关于Linux内核的初始化过程到这里就结束了。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/MintCN/linux-insides-zh/issues/new)。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/hust-open-atom-club/linux-insides-zh/issues/new)。
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下一部分我们会看到初期中断处理程序的初始化过程、内核空间的内存映射等。
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@@ -444,7 +444,7 @@ It is the end of the tenth part about the linux kernel [initialization process](
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If you have any questions or suggestions write me a comment or ping me at [twitter](https://twitter.com/0xAX).
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/MintCN/linux-insides-zh).**
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh).**
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Links
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--------------------------------------------------------------------------------
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@@ -480,7 +480,7 @@ pmd_p[pmd_index(address)] = pmd;
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本书的第二部分到此结束了。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/MintCN/linux-insides-zh/issues/new)。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/hust-open-atom-club/linux-insides-zh/issues/new)。
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接下来我们将会看到进入内核入口点 `start_kernel` 函数之前剩下所有的准备工作。
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@@ -5,7 +5,7 @@
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--------------------------------------------------------------------------------
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这是 Linux 内核初始化过程的第三部分。在[上一个部分](https://github.com/MintCN/linux-insides-zh/blob/master/Initialization/linux-initialization-2.md) 中我们接触到了初期中断和异常处理，而在这个部分中我们要继续看一看 Linux 内核的初始化过程。在之后的章节我们将会关注“内核入口点”—— [init/main.c](https://github.com/torvalds/linux/blob/master/init/main.c) 文件中的`start_kernel` 函数。没错，从技术上说这并不是内核的入口点，只是不依赖于特定架构的通用内核代码的开始。不过，在我们调用 `start_kernel` 之前，有些准备必须要做。下面我们就来看一看。
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这是 Linux 内核初始化过程的第三部分。在[上一个部分](https://github.com/hust-open-atom-club/linux-insides-zh/blob/master/Initialization/linux-initialization-2.md) 中我们接触到了初期中断和异常处理，而在这个部分中我们要继续看一看 Linux 内核的初始化过程。在之后的章节我们将会关注“内核入口点”—— [init/main.c](https://github.com/torvalds/linux/blob/master/init/main.c) 文件中的`start_kernel` 函数。没错，从技术上说这并不是内核的入口点，只是不依赖于特定架构的通用内核代码的开始。不过，在我们调用 `start_kernel` 之前，有些准备必须要做。下面我们就来看一看。
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boot_params again
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--------------------------------------------------------------------------------
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@@ -417,11 +417,11 @@ start_kernel()
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本书的第三部分到这里就结束了。在下一部分中，我们将会见到内核入口点处的初始化工作 —— 位于 `start_kernel` 函数中。这些工作是在启动第一个进程 `init` 之前首先要完成的工作。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/MintCN/linux-insides-zh/issues/new)。
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如果你有任何问题或建议，请在twitter上联系我 [0xAX](https://twitter.com/0xAX)，或者通过[邮件](anotherworldofworld@gmail.com)与我沟通，还可以新开[issue](https://github.com/hust-open-atom-club/linux-insides-zh/issues/new)。
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相关链接
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--------------------------------------------------------------------------------
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* [BIOS data area](http://stanislavs.org/helppc/bios_data_area.html)
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* [What is in the extended BIOS data area on a PC?](http://www.kryslix.com/nsfaq/Q.6.html)
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* [Previous part](https://github.com/MintCN/linux-insides-zh/blob/master/Initialization/linux-initialization-2.md)
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* [Previous part](https://github.com/hust-open-atom-club/linux-insides-zh/blob/master/Initialization/linux-initialization-2.md)
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@@ -49,7 +49,7 @@ char *after_dashes;
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lockdep_init();
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```
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`lockdep_init` 初始化 [lock validator](https://www.kernel.org/doc/Documentation/locking/lockdep-design.txt). 其实现是相当简单的，它只是初始化了两个哈希表 [list_head](https://github.com/MintCN/linux-insides-zh/blob/master/DataStructures/linux-datastructures-1.md)并设置`lockdep_initialized` 全局变量为`1`。
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`lockdep_init` 初始化 [lock validator](https://www.kernel.org/doc/Documentation/locking/lockdep-design.txt). 其实现是相当简单的，它只是初始化了两个哈希表 [list_head](https://github.com/hust-open-atom-club/linux-insides-zh/blob/master/DataStructures/linux-datastructures-1.md)并设置`lockdep_initialized` 全局变量为`1`。
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关于自旋锁 [spinlock](http://en.wikipedia.org/wiki/Spinlock)以及互斥锁[mutex](http://en.wikipedia.org/wiki/Mutual_exclusion) 如何获取请参考链接.
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下一个函数是`set_task_stack_end_magic`，参数为`init_task`和设置`STACK_END_MAGIC` (`0x57AC6E9D`)。`init_task`代表初始化进程(任务)数据结构:
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@@ -434,7 +434,7 @@ memblock_reserve(ramdisk_image, ramdisk_end - ramdisk_image);
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如果你有任何的问题或者建议，你可以留言，也可以直接发消息给我[twitter](https://twitter.com/0xAX)。
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，请提交一个 PR 到 [linux-insides](https://github.com/MintCN/linux-insides-zh).**
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，请提交一个 PR 到 [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh).**
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链接
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--------------------------------------------------------------------------------
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@@ -543,7 +543,7 @@ void x86_configure_nx(void)
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如果你有任何问题或者建议，你可以留言，也可以直接发送消息给我[twitter](https://twitter.com/0xAX)。
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，清提交一个 PR 到 [linux-insides](https://github.com/MintCN/linux-insides-zh)。**
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，清提交一个 PR 到 [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh)。**
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链接
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--------------------------------------------------------------------------------
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@@ -558,4 +558,4 @@ void x86_configure_nx(void)
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* [CFI directives](https://sourceware.org/binutils/docs/as/CFI-directives.html)
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* [PDF. dwarf4 specification](http://dwarfstd.org/doc/DWARF4.pdf)
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* [Call stack](http://en.wikipedia.org/wiki/Call_stack)
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* [内核初始化. Part 4.](http://github.com/MintCN/linux-insides-zh/blob/master/Initialization/linux-initialization-4.md)
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* [内核初始化. Part 4.](http://github.com/hust-open-atom-club/linux-insides-zh/blob/master/Initialization/linux-initialization-4.md)
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@@ -506,7 +506,7 @@ for (; pmd < last_pmd; pmd++, vaddr += PMD_SIZE) {
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}
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```
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在这之后，我们使用 `memblock_set_current_limit` (你可以在[linux 内存管理 第二章节](https://github.com/MintCN/linux-insides-zh/blob/master/MM/linux-mm-2.md) 阅读关于 `memblock` 的更多内容) 函数来为 `memblock` 分配内存设置一个界限，这个界限可以是 `ISA_END_ADDRESS` 或者 `0x100000` ，然后调用 `memblock_x86_fill` 函数根据 `e820` 来填充 `memblock` 相关信息。你可以在内核初始化的时候看到这个函数运行的结果:
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在这之后，我们使用 `memblock_set_current_limit` (你可以在[linux 内存管理 第二章节](https://github.com/hust-open-atom-club/linux-insides-zh/blob/master/MM/linux-mm-2.md) 阅读关于 `memblock` 的更多内容) 函数来为 `memblock` 分配内存设置一个界限，这个界限可以是 `ISA_END_ADDRESS` 或者 `0x100000` ，然后调用 `memblock_x86_fill` 函数根据 `e820` 来填充 `memblock` 相关信息。你可以在内核初始化的时候看到这个函数运行的结果:
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```
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MEMBLOCK configuration:
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@@ -532,7 +532,7 @@ MEMBLOCK configuration:
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如果你有任何的疑问或者建议，你可以留言，也可以直接发消息给我[twitter](https://twitter.com/0xAX)。
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，请提交一个 PR 到 [linux-insides](https://github.com/MintCN/linux-insides-zh).**
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**很抱歉，英语并不是我的母语，非常抱歉给您阅读带来不便，如果你发现文中描述有任何问题，请提交一个 PR 到 [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh).**
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链接
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--------------------------------------------------------------------------------
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@@ -4,7 +4,7 @@ Kernel initialization. Part 8.
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Scheduler initialization
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================================================================================
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This is the eighth [part](http://xinqiu.gitbooks.io/linux-insides-cn/content/Initialization/index.html) of the Linux kernel initialization process and we stopped on the `setup_nr_cpu_ids` function in the [previous](https://github.com/MintCN/linux-insides-zh/blob/master/Initialization/linux-initialization-7.md) part. The main point of the current part is [scheduler](http://en.wikipedia.org/wiki/Scheduling_%28computing%29) initialization. But before we will start to learn initialization process of the scheduler, we need to do some stuff. The next step in the [init/main.c](https://github.com/torvalds/linux/blob/master/init/main.c) is the `setup_per_cpu_areas` function. This function setups areas for the `percpu` variables, more about it you can read in the special part about the [Per-CPU variables](https://xinqiu.gitbooks.io/linux-insides-cn/content/Concepts/linux-cpu-1.html). After `percpu` areas is up and running, the next step is the `smp_prepare_boot_cpu` function. This function does some preparations for the [SMP](http://en.wikipedia.org/wiki/Symmetric_multiprocessing):
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This is the eighth [part](http://xinqiu.gitbooks.io/linux-insides-cn/content/Initialization/index.html) of the Linux kernel initialization process and we stopped on the `setup_nr_cpu_ids` function in the [previous](https://github.com/hust-open-atom-club/linux-insides-zh/blob/master/Initialization/linux-initialization-7.md) part. The main point of the current part is [scheduler](http://en.wikipedia.org/wiki/Scheduling_%28computing%29) initialization. But before we will start to learn initialization process of the scheduler, we need to do some stuff. The next step in the [init/main.c](https://github.com/torvalds/linux/blob/master/init/main.c) is the `setup_per_cpu_areas` function. This function setups areas for the `percpu` variables, more about it you can read in the special part about the [Per-CPU variables](https://xinqiu.gitbooks.io/linux-insides-cn/content/Concepts/linux-cpu-1.html). After `percpu` areas is up and running, the next step is the `smp_prepare_boot_cpu` function. This function does some preparations for the [SMP](http://en.wikipedia.org/wiki/Symmetric_multiprocessing):
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```C
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static inline void smp_prepare_boot_cpu(void)
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@@ -456,7 +456,7 @@ It is the end of the eighth part about the linux kernel initialization process.
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If you have any questions or suggestions write me a comment or ping me at [twitter](https://twitter.com/0xAX).
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||||
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/MintCN/linux-insides-zh).**
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh).**
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Links
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--------------------------------------------------------------------------------
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@@ -409,7 +409,7 @@ It is the end of the ninth part about the linux kernel [initialization process](
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If you have any questions or suggestions write me a comment or ping me at [twitter](https://twitter.com/0xAX).
|
||||
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/MintCN/linux-insides-zh).**
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**Please note that English is not my first language, And I am really sorry for any inconvenience. If you find any mistakes please send me PR to [linux-insides](https://github.com/hust-open-atom-club/linux-insides-zh).**
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Links
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--------------------------------------------------------------------------------
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