> From: Dexuan Cui <decui@xxxxxxxxxxxxx> > Sent: Monday, November 2, 2020 5:12 PM > > ... Hi tglx, Now this patch is in the x86/apic branch, which is great! Thanks for the quick action! But the third line of the below paragraph of the commit log is missing... Sorry I just realized I should have not prefixed that line with the ">255 APIC IDs" -- it looks a line is ignored if it starts with 2 chars of ">>". :-( > On an old Hyper-V host that doesn't support the Extended Dest ID, nothing > changes with this commit: Linux VM is still able to bring up the CPUs with > >255 APIC IDs with the help of hyperv-iommu.c, but IOAPIC interrupts still > can not go to such CPUs, and the kdump kernel still can not work properly > on such CPUs.
