Re: [PATCH] powerpc64/bpf: support direct_call on livepatch function
From: Hari Bathini <hbathini@linux.ibm.com>
Date: 2025-10-06 13:21:02
Also in:
bpf, linuxppc-dev, live-patching
On 06/10/25 1:22 pm, Naveen N Rao wrote:
On Fri, Oct 03, 2025 at 12:57:54AM +0530, Hari Bathini wrote:quoted
Today, livepatch takes precedence over direct_call. Instead, save the state and make direct_call before handling livepatch.If we call into the BPF trampoline first and if we have BPF_TRAMP_F_CALL_ORIG set, does this result in the BPF trampoline calling the new copy of the live-patched function or the old one?
Naveen, calls the new copy of the live-patched function.. - Hari