Re: [PATCH v2 02/39] x86/cet/shstk: Add Kconfig option for Shadow Stack

Edgecombe, Rick P
2022-10-03T19:50:36Z

On Mon, 2022-10-03 at 12:42 -0700, Dave Hansen wrote:
> On 9/29/22 15:28, Rick Edgecombe wrote:
> > +config X86_SHADOW_STACK
> > + prompt "X86 Shadow Stack"
> > + def_bool n
> > + depends on ARCH_HAS_SHADOW_STACK
> > + select ARCH_USES_HIGH_VMA_FLAGS
> > + help
> > + Shadow Stack protection is a hardware feature that detects
> > function
> > + return address corruption. Today the kernel's support is
> > limited to
> > + virtualizing it in KVM guests.
> > +
>
> Is this help text up to date? It seems a bit at odds with the series
> title.

Arg, yes. This patch got screwed up when I converted it back and forth
for the KVM series.