On 13/10/2015 15:26, Laszlo Ersek wrote: >> // >> + // The write to the control register is synchronous and only affects the >> + // current CPU, so bring in the APs first. The SMI handler expects that >> + // all APs will rendez-vous within one PcdCpuSmmApSyncTimeout (though it >> + // helpfully tries sending SMI IPIs to the missing processors if there are >> + // any). >> + // >> + SendSmiIpiAllExcludingSelf (); >> + >> + //
Nevermind, this patch is unfortunately broken. SendSmiIpiAllExcludingSelf does not work after ExitBootServices, because it hardcodes the physical address of the APIC. While that could be fixed in LocalApicLib, it turns out that using SmmSyncModeRelaxedAp is a trivial addition to my series that introduces a SmmCpuFeaturesLib implementation specific to OvmfPkg. Therefore, I'm withdrawing this patch and submitting another in that thread. Paolo _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
