From: Peter Zijlstra <peterz@infradead.org>
To: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
kernel-team@fb.com, x86@kernel.org, KP Singh <kpsingh@kernel.org>
Subject: Re: [PATCH bpf] x86/bpf: handle bpf-program-triggered exceptions properly
Date: Wed, 27 Jan 2021 10:30:56 +0100 [thread overview]
Message-ID: <YBEy0OfeVgOwdHaT@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <66f46df5-8d47-8e4f-a6ab-ab794e57332d@fb.com>
On Tue, Jan 26, 2021 at 11:21:01AM -0800, Yonghong Song wrote:
> Do we have any x64 cpus which does not support X86_FEATURE_SMAP?
x64 is not an achitecture I know of. If you typoed x86_64 then sure, I
think SMAP is fairly recent, Wikipedia seems to suggest Broadwell and
later. AMD seems to sport it since Zen.
next prev parent reply other threads:[~2021-01-27 9:36 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-26 0:12 [PATCH bpf] x86/bpf: handle bpf-program-triggered exceptions properly Yonghong Song
2021-01-26 9:15 ` Peter Zijlstra
2021-01-26 19:21 ` Yonghong Song
2021-01-27 9:30 ` Peter Zijlstra [this message]
2021-01-27 21:07 ` Andrii Nakryiko
2021-01-27 21:47 ` Andy Lutomirski
2021-01-28 1:05 ` Yonghong Song
2021-01-28 23:51 ` Andy Lutomirski
2021-01-29 0:11 ` Alexei Starovoitov
2021-01-29 0:18 ` Andy Lutomirski
2021-01-29 0:26 ` Alexei Starovoitov
2021-01-29 0:29 ` Andy Lutomirski
2021-01-29 0:32 ` Andy Lutomirski
2021-01-29 0:41 ` Alexei Starovoitov
2021-01-29 0:45 ` Andy Lutomirski
2021-01-29 1:04 ` Alexei Starovoitov
2021-01-29 1:31 ` Andy Lutomirski
2021-01-29 1:53 ` Alexei Starovoitov
2021-01-29 2:18 ` Andy Lutomirski
2021-01-29 2:32 ` Alexei Starovoitov
2021-01-29 3:09 ` Andy Lutomirski
2021-01-29 3:26 ` Alexei Starovoitov
2021-01-29 0:35 ` Jann Horn
2021-01-29 0:43 ` Alexei Starovoitov
2021-01-29 1:03 ` Jann Horn
2021-01-29 1:08 ` Alexei Starovoitov
[not found] <YBPToXfWV1ekRo4q@hirez.programming.kicks-ass.net>
[not found] ` <97EF0157-F068-4234-B826-C08B7324F356@amacapital.net>
2021-01-29 23:11 ` Alexei Starovoitov
2021-01-29 23:30 ` Andy Lutomirski
2021-01-30 2:54 ` Alexei Starovoitov
2021-01-31 17:32 ` Andy Lutomirski
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