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

("bpf: Implement BPF ring buffer and verifier support for it") Suggested-by: Yonghong Song Signed-off-by: Gilad Reti --- kernel/bpf/verifier.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 17270b8404f1..36af69fac591 100644 --

[PATCH bpf v2 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

partially contributed by CyberArk Software, Inc. Signed-off-by: Gilad Reti --- tools/testing/selftests/bpf/test_verifier.c | 12 +++- .../selftests/bpf/verifier/spill_fill.c | 30 +++ 2 files changed, 41 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf

Re: [PATCH 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

On Tue, Jan 12, 2021 at 6:17 PM KP Singh wrote: > > On Tue, Jan 12, 2021 at 4:43 PM Daniel Borkmann wrote: > > > > On 1/12/21 4:35 PM, Gilad Reti wrote: > > > On Tue, Jan 12, 2021 at 4:56 PM KP Singh wrote: > > >> On Tue, Jan 12, 2021 at 10:16 AM Gilad R

Re: [PATCH 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

On Tue, Jan 12, 2021 at 4:56 PM KP Singh wrote: > > On Tue, Jan 12, 2021 at 10:16 AM Gilad Reti wrote: > > > > Add test to check that the verifier is able to recognize spilling of > > PTR_TO_MEM registers. > > > > It would be nice to have some explanation of w

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

On Tue, Jan 12, 2021 at 3:57 PM KP Singh wrote: > > On Tue, Jan 12, 2021 at 10:14 AM Gilad Reti wrote: > > > > Add support for pointer to mem register spilling, to allow the verifier > > to track pointer to valid memory addresses. Such pointers are returned > > ni

[PATCH bpf 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

Add test to check that the verifier is able to recognize spilling of PTR_TO_MEM registers. The patch was partially contibuted by CyberArk Software, Inc. Signed-off-by: Gilad Reti --- tools/testing/selftests/bpf/test_verifier.c | 12 +++- .../selftests/bpf/verifier/spill_fill.c | 30

[PATCH 2/2] selftests/bpf: add verifier test for PTR_TO_MEM spill

Add test to check that the verifier is able to recognize spilling of PTR_TO_MEM registers. The patch was partially contibuted by CyberArk Software, Inc. Signed-off-by: Gilad Reti --- tools/testing/selftests/bpf/test_verifier.c | 12 +++- .../selftests/bpf/verifier/spill_fill.c | 30

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

contibuted by CyberArk Software, Inc. Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") Signed-off-by: Gilad Reti --- kernel/bpf/verifier.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 17

Re: [PATCH] Signed-off-by: giladreti

t; for example by a successful call of the bpf_ringbuf_reserve helper. > > > > This patch was suggested as a solution by Yonghong Song. > > The SoB should not be in subject line but as part of the commit message > instead > and with proper name, e.g. > > Signed-off-by:

Re: [PATCH bpf-next 3/3] selftests/bpf: add tests for user- and non-CO-RE BPF_CORE_READ() variants

On Wed, Jan 6, 2021 at 8:09 AM Alexei Starovoitov wrote: > > On Tue, Jan 05, 2021 at 01:03:47PM -0800, Andrii Nakryiko wrote: > > > > > > > > - handling 32-bit vs 64-bit UAPI structs uniformly; > > > > > > what do you mean? > > > 32-bit user space running on 64-bit kernel works through 'compat'