Support kCFI + BPF on arm64 #7178
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=860506 expired. Closing PR. |
Currently, bpf_dispatcher_*_func() is marked with `__nocfi` therefore calling BPF programs from this interface doesn't cause CFI warnings. When BPF programs are called directly from C: from BPF helpers or struct_ops, CFI warnings are generated. Implement proper CFI prologues for the BPF programs and callbacks and drop __nocfi for arm64. Fix the trampoline generation code to emit kCFI prologue when a struct_ops trampoline is being prepared. Signed-off-by: Puranjay Mohan <puranjay12@gmail.com> Signed-off-by: Maxwell Bland <mbland@motorola.com>
Corrects Puranjay Mohan's commit to adopt Mark Rutland's suggestion of using a C CFI type macro in kCFI+BPF. Signed-off-by: Maxwell Bland <mbland@motorola.com>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=861246 expired. Closing PR. |
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Pull request for series with
subject: Support kCFI + BPF on arm64
version: 5
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=860506