On Tue, Feb 28, 2023 at 10:51:29AM +0100, Jose E. Marchesi wrote: > > [Changes from V4: > - s/regs:16/regs:8 in figure.] > > [Changes from V3: > - Back to src_reg and dst_reg, since they denote register numbers > as opposed to the values stored in these registers.] > > [Changes from V2: > - Use src and dst consistently in the document. > - Use a more graphical depiction of the 128-bit instruction. > - Remove `Where:' fragment. > - Clarify that unused bits are reserved and shall be zeroed.] > > [Changes from V1: > - Use rst literal blocks for figures. > - Avoid using | in the basic instruction/pseudo instruction figure. > - Rebased to today's bpf-next master branch.] > > This patch modifies instruction-set.rst so it documents the encoding > of BPF instructions in terms of how the bytes are stored (be it in an > ELF file or as bytes in a memory buffer to be loaded into the kernel > or some other BPF consumer) as opposed to how the instruction looks > like once loaded. > > This is hopefully easier to understand by implementors looking to > generate and/or consume bytes conforming BPF instructions. > > The patch also clarifies that the unused bytes in a pseudo-instruction > shall be cleared with zeros. > > Signed-off-by: Jose E. Marchesi <jose.marchesi@xxxxxxxxxx> Acked-by: David Vernet <void@xxxxxxxxxxxxx>
