On 11/27/2018 07:24 PM, Daniel Borkmann wrote: > On 11/27/2018 07:22 PM, Will Deacon wrote: >> Hi Ard, >> >> On Fri, Nov 23, 2018 at 06:29:02PM +0100, Ard Biesheuvel wrote: >>> On arm64, all executable code is guaranteed to reside in the vmalloc >>> space (or the module space), and so jump targets will only use 48 >>> bits at most, and the remaining bits are guaranteed to be 0x1. >>> >>> This means we can generate an immediate jump address using a sequence >>> of one MOVN (move wide negated) and two MOVK instructions, where the >>> first one sets the lower 16 bits but also sets all top bits to 0x1. >>> >>> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> >>> --- >> >> Acked-by: Will Deacon <will.dea...@arm.com> >> >> Denial, Alexei, shall I take this via arm64, or would you rather take >> it via davem? > > Yeah we can take it via bpf trees, thanks.
And now applied, thanks!
