| Message ID | 20220927185958.14995-12-dthaler1968@googlemail.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | BPF |
| Headers | show |
| Series | [01/15] ebpf-docs: Move legacy packet instructions to a separate file | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch |
| bpf/vmtest-bpf-next-VM_Test-4 | success | Logs for llvm-toolchain |
| bpf/vmtest-bpf-next-VM_Test-5 | success | Logs for set-matrix |
| bpf/vmtest-bpf-next-VM_Test-2 | success | Logs for build for x86_64 with gcc |
| bpf/vmtest-bpf-next-VM_Test-3 | success | Logs for build for x86_64 with llvm-16 |
| bpf/vmtest-bpf-next-VM_Test-1 | success | Logs for build for s390x with gcc |
| bpf/vmtest-bpf-next-VM_Test-16 | success | Logs for test_verifier on x86_64 with gcc |
| bpf/vmtest-bpf-next-VM_Test-13 | success | Logs for test_progs_no_alu32 on x86_64 with gcc |
| bpf/vmtest-bpf-next-VM_Test-15 | success | Logs for test_verifier on s390x with gcc |
| bpf/vmtest-bpf-next-VM_Test-17 | success | Logs for test_verifier on x86_64 with llvm-16 |
| bpf/vmtest-bpf-next-VM_Test-7 | success | Logs for test_maps on x86_64 with gcc |
| bpf/vmtest-bpf-next-VM_Test-9 | success | Logs for test_progs on s390x with gcc |
| bpf/vmtest-bpf-next-VM_Test-10 | success | Logs for test_progs on x86_64 with gcc |
| bpf/vmtest-bpf-next-VM_Test-11 | fail | Logs for test_progs on x86_64 with llvm-16 |
| bpf/vmtest-bpf-next-VM_Test-12 | success | Logs for test_progs_no_alu32 on s390x with gcc |
| bpf/vmtest-bpf-next-VM_Test-14 | success | Logs for test_progs_no_alu32 on x86_64 with llvm-16 |
| bpf/vmtest-bpf-next-VM_Test-8 | success | Logs for test_maps on x86_64 with llvm-16 |
| bpf/vmtest-bpf-next-PR | fail | PR summary |
| bpf/vmtest-bpf-next-VM_Test-6 | success | Logs for test_maps on s390x with gcc |
On Tue, Sep 27, 2022 at 06:59:55PM +0000, dthaler1968@googlemail.com wrote: > From: Dave Thaler <dthaler@microsoft.com> > > Signed-off-by: Dave Thaler <dthaler@microsoft.com> > --- > Documentation/bpf/linux-notes.rst | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/bpf/linux-notes.rst b/Documentation/bpf/linux-notes.rst > index 522ebe27d..0581ba326 100644 > --- a/Documentation/bpf/linux-notes.rst > +++ b/Documentation/bpf/linux-notes.rst > @@ -7,6 +7,12 @@ Linux implementation notes > > This document provides more details specific to the Linux kernel implementation of the eBPF instruction set. > > +Registers and calling convention > +================================ > + > +All program types only use R1 which contains the "context", which is typically a structure containing all > +the inputs needed, and the exit value for eBPF programs is passed as a 32 bit value. There is a patch pending that makes return values 64-bit. Also bpf progs that replace other bpf progs have all 5 input args. I think this paragraph is unnecessary. > + > Arithmetic instructions > ======================= > > -- > 2.33.4 >
diff --git a/Documentation/bpf/linux-notes.rst b/Documentation/bpf/linux-notes.rst index 522ebe27d..0581ba326 100644 --- a/Documentation/bpf/linux-notes.rst +++ b/Documentation/bpf/linux-notes.rst @@ -7,6 +7,12 @@ Linux implementation notes This document provides more details specific to the Linux kernel implementation of the eBPF instruction set. +Registers and calling convention +================================ + +All program types only use R1 which contains the "context", which is typically a structure containing all +the inputs needed, and the exit value for eBPF programs is passed as a 32 bit value. + Arithmetic instructions =======================