On Tue, Feb 11, 2020 at 5:53 AM Joerg Roedel <joro@xxxxxxxxxx> wrote: > > From: Joerg Roedel <jroedel@xxxxxxx> > > With SEV-ES, exception handling is needed very early, even before the > kernel has cleared the bss segment. In order to prevent clearing the > currently used IDT, move the IDT to the data segment. Ugh. At the very least this needs a comment in the code. I had a patch to fix the kernel ELF loader to clear BSS, which would fix this problem once and for all, but it didn't work due to the messy way that the decompressor handles memory. I never got around to fixing this, sadly.
