函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\bugs.c Create Date:2022-07-27 08:56:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：cpu_bugs_smt_update

函数原型：void cpu_bugs_smt_update(void)

返回类型：void

参数：无

915  mutex_lock( & spec_ctrl_mutex)
918  当:spectre_v2_user恒等于SPECTRE_V2_USER_NONE
919  退出
920  当:spectre_v2_user恒等于SPECTRE_V2_USER_STRICT
921  当:spectre_v2_user恒等于SPECTRE_V2_USER_STRICT_PREFERRED
922  Update x86_spec_ctrl_base in case SMT state changed.
923  退出
924  当:spectre_v2_user恒等于SPECTRE_V2_USER_PRCTL
925  当:spectre_v2_user恒等于SPECTRE_V2_USER_SECCOMP
926  Update the static key controlling the evaluation of TIF_SPEC_IB
927  退出
931  当:Default mitigation for MDS-affected CPUs 恒等于MDS_MITIGATION_FULL
932  当:Default mitigation for MDS-affected CPUs 恒等于MDS_MITIGATION_VMWERV
933  如果sched_smt_active()且非boot_cpu_has(CPU is only affected by the MSDBS variant of BUG_MDS )则pr_warn_once(MDS_MSG_SMT)
935  Update the static key controlling the MDS CPU buffer clear in idle
936  退出
937  当:Default mitigation for MDS-affected CPUs 恒等于MDS_MITIGATION_OFF
938  退出
942  当:Default mitigation for TAA-affected CPUs 恒等于TAA_MITIGATION_VERW
943  当:Default mitigation for TAA-affected CPUs 恒等于TAA_MITIGATION_UCODE_NEEDED
947  当:Default mitigation for TAA-affected CPUs 恒等于TAA_MITIGATION_TSX_DISABLED
948  当:Default mitigation for TAA-affected CPUs 恒等于TAA_MITIGATION_OFF
949  退出
952  mutex_unlock( & spec_ctrl_mutex)
调用者
名称描述
arch_smt_updateInvoked from core CPU hotplug code after hotplug operations