On Fri, Dec 11, 2020 at 5:52 PM Alexei Starovoitov
wrote:
>
> On Fri, Dec 11, 2020 at 02:15:28PM -0800, Andrii Nakryiko wrote:
> > On Fri, Dec 11, 2020 at 1:27 PM Alexei Starovoitov
> > wrote:
> > >
> > > On Thu, Dec 10, 2020 at 08:27:32PM -0800, Andrii Nakryiko wrote:
> > > > During BPF program
On Fri, Dec 11, 2020 at 02:15:28PM -0800, Andrii Nakryiko wrote:
> On Fri, Dec 11, 2020 at 1:27 PM Alexei Starovoitov
> wrote:
> >
> > On Thu, Dec 10, 2020 at 08:27:32PM -0800, Andrii Nakryiko wrote:
> > > During BPF program load time, verifier will resolve FD to BTF object and
> > > will
> > > t
On Fri, Dec 11, 2020 at 1:27 PM Alexei Starovoitov
wrote:
>
> On Thu, Dec 10, 2020 at 08:27:32PM -0800, Andrii Nakryiko wrote:
> > During BPF program load time, verifier will resolve FD to BTF object and
> > will
> > take reference on BTF object itself and, for module BTFs, corresponding
> > mod
On Thu, Dec 10, 2020 at 08:27:32PM -0800, Andrii Nakryiko wrote:
> During BPF program load time, verifier will resolve FD to BTF object and will
> take reference on BTF object itself and, for module BTFs, corresponding module
> as well, to make sure it won't be unloaded from under running BPF progr
Add support for directly accessing kernel module variables from BPF programs
using special ldimm64 instructions. This functionality builds upon vmlinux
ksym support, but extends ldimm64 with src_reg=BPF_PSEUDO_BTF_ID to allow
specifying kernel module BTF's FD in insn[1].imm field.
During BPF progr
