On Thu, 4 Jan 2018 09:56:46 -0800 Tim Chen <tim.c.c...@linux.intel.com> wrote:
> From: David Woodhouse <d...@amazon.co.uk> > > We are impervious to the indirect branch prediction attack with retpoline > but firmware won't be, so we still need to set IBRS to protect > firmware code execution when calling into firmware at runtime. If you are going to care about APM then you also need to care about BIOS32 interfaces (arch/x86/pc/pcibios.c) and PNPBIOS (drivers/pnp/pnpbios/bioscalls.c) Alan
