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1121070
2020 Apr 28
0
[PATCH v3 70/75] x86/head/64: Setup TSS early for secondary CPUs
From: Joerg Roedel <jroedel at suse.de>
The #VC exception will trigger very early in head_64.S, when the first
CPUID instruction is executed. When secondary CPUs boot, they already
load the real system IDT, which has the #VC handler configured to be
using an IST stack. IST stacks require a TSS to be loaded, to set up the
TSS early for bringing up the secondary CPUs. Use the RW version of