Hi, Experts: There is a TimeLib implementation in UefiCpuPkg\Library\SecPeiDxeTimerLibUefiCpu . It uses cpu's local apic timer.
I wonder whether it could be used in smm drivers? If using MicroSecondDelay function (which provided in this timerlib), maybe we should save OS's CPU local apic timer setting first. And restore OS's CPU local apic timer setting before return to OS environment. Thanks 保密声明： 本邮件含有保密或专有信息，仅供指定收件人使用。严禁对本邮件或其内容做任何未经授权的查阅、使用、复制或转发。 CONFIDENTIAL NOTE: This email contains confidential or legally privileged information and is for the sole use of its intended recipient. Any unauthorized review, use, copying or forwarding of this email or the content of this email is strictly prohibited. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#57503): https://edk2.groups.io/g/devel/message/57503 Mute This Topic: https://groups.io/mt/73073476/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
