Re: [PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling

2021-01-13 Thread Alexei Starovoitov
On Wed, Jan 13, 2021 at 2:29 PM KP Singh wrote: > > On Wed, Jan 13, 2021 at 6:38 AM Gilad Reti wrote: > > > > Add support for pointer to mem register spilling, to allow the verifier > > to track pointers to valid memory addresses. Such pointers are returned > > for example by a successful call of

Re: [PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling

2021-01-13 Thread KP Singh
On Wed, Jan 13, 2021 at 6:38 AM Gilad Reti wrote: > > Add support for pointer to mem register spilling, to allow the verifier > to track pointers to valid memory addresses. Such pointers are returned > for example by a successful call of the bpf_ringbuf_reserve helper. > > The patch was partially

[PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling

2021-01-12 Thread Gilad Reti
Add support for pointer to mem register spilling, to allow the verifier to track pointers to valid memory addresses. Such pointers are returned for example by a successful call of the bpf_ringbuf_reserve helper. The patch was partially contributed by CyberArk Software, Inc. Fixes: 457f44363a88 ("