函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\crash.c Create Date:2022-07-27 09:36:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cpu_crash_vmclear_loaded_vmcss

函数原型：static inline void cpu_crash_vmclear_loaded_vmcss(void)

返回类型：void

参数：无

64  crash_vmclear_fn * do_vmclear_operation = NULL
66  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
67  do_vmclear_operation等于cu_dereference() - fetch RCU-protected pointer for dereferencing*@p: The pointer to read, prior to dereferencing* This is a simple wrapper around rcu_dereference_check().(This is used to VMCLEAR all VMCSs loaded on the* processor. And when loading kvm_intel module, the* callback function pointer will be assigned.* protected by rcu.)
68  如果do_vmclear_operation则do_vmclear_operation()
70  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
调用者
名称描述
native_machine_crash_shutdown