Re: [PATCH bpf-next v2 0/6] bpf trampoline support "jmp" mode

From: Alexei Starovoitov
Date: Tue Nov 18 2025 - 01:31:25 EST

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On Sun, Nov 16, 2025 at 7:49 PM Menglong Dong <menglong8.dong@xxxxxxxxx> wrote:
>
> For now, the bpf trampoline is called by the "call" instruction. However,
> it break the RSB and introduce extra overhead in x86_64 arch.

Please include performance numbers in the cover letter when you respin.

Next message: Yan Zhao: "Re: [RFC PATCH v2 12/23] KVM: x86/mmu: Introduce kvm_split_cross_boundary_leafs()"
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In reply to: kernel test robot: "Re: [PATCH bpf-next v2 6/6] bpf: implement "jmp" mode for trampoline"
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