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-rw-r--r--Documentation/bpf/standardization/abi.rst25
-rw-r--r--Documentation/bpf/standardization/index.rst1
-rw-r--r--Documentation/bpf/standardization/instruction-set.rst16
3 files changed, 26 insertions, 16 deletions
diff --git a/Documentation/bpf/standardization/abi.rst b/Documentation/bpf/standardization/abi.rst
new file mode 100644
index 000000000000..0c2e10eeb89a
--- /dev/null
+++ b/Documentation/bpf/standardization/abi.rst
@@ -0,0 +1,25 @@
+.. contents::
+.. sectnum::
+
+===================================================
+BPF ABI Recommended Conventions and Guidelines v1.0
+===================================================
+
+This is version 1.0 of an informational document containing recommended
+conventions and guidelines for producing portable BPF program binaries.
+
+Registers and calling convention
+================================
+
+BPF has 10 general purpose registers and a read-only frame pointer register,
+all of which are 64-bits wide.
+
+The BPF calling convention is defined as:
+
+* R0: return value from function calls, and exit value for BPF programs
+* R1 - R5: arguments for function calls
+* R6 - R9: callee saved registers that function calls will preserve
+* R10: read-only frame pointer to access stack
+
+R0 - R5 are scratch registers and BPF programs needs to spill/fill them if
+necessary across calls.
diff --git a/Documentation/bpf/standardization/index.rst b/Documentation/bpf/standardization/index.rst
index d7b946f71261..a50c3baf6345 100644
--- a/Documentation/bpf/standardization/index.rst
+++ b/Documentation/bpf/standardization/index.rst
@@ -12,6 +12,7 @@ for the working group charter, documents, and more.
:maxdepth: 1
instruction-set
+ abi
.. Links:
.. _IETF BPF Working Group: https://datatracker.ietf.org/wg/bpf/about/
diff --git a/Documentation/bpf/standardization/instruction-set.rst b/Documentation/bpf/standardization/instruction-set.rst
index c5b0b2011f16..83583d735e38 100644
--- a/Documentation/bpf/standardization/instruction-set.rst
+++ b/Documentation/bpf/standardization/instruction-set.rst
@@ -97,22 +97,6 @@ Definitions
A: 10000110
B: 11111111 10000110
-Registers and calling convention
-================================
-
-eBPF has 10 general purpose registers and a read-only frame pointer register,
-all of which are 64-bits wide.
-
-The eBPF calling convention is defined as:
-
-* R0: return value from function calls, and exit value for eBPF programs
-* R1 - R5: arguments for function calls
-* R6 - R9: callee saved registers that function calls will preserve
-* R10: read-only frame pointer to access stack
-
-R0 - R5 are scratch registers and eBPF programs needs to spill/fill them if
-necessary across calls.
-
Instruction encoding
====================