Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF

[PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Will Drewry <wad@chromium.org> · 2012-02-16
[PATCH v8 2/8] seccomp: kill the seccomp_t typedef · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 2/8] seccomp: kill the seccomp_t typedef · James Morris <jmorris@namei.org> · 2012-02-20
[PATCH v8 5/8] seccomp: Add SECCOMP_RET_TRAP · Will Drewry <wad@chromium.org> · 2012-02-16
[PATCH v8 7/8] x86: Enable HAVE_ARCH_SECCOMP_FILTER · Will Drewry <wad@chromium.org> · 2012-02-16
[PATCH v8 8/8] Documentation: prctl/seccomp_filter · Will Drewry <wad@chromium.org> · 2012-02-16
[PATCH v8 6/8] ptrace,seccomp: Add PTRACE_SECCOMP support · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 6/8] ptrace,seccomp: Add PTRACE_SECCOMP support · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 6/8] ptrace,seccomp: Add PTRACE_SECCOMP support · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 6/8] ptrace,seccomp: Add PTRACE_SECCOMP support · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 6/8] ptrace,seccomp: Add PTRACE_SECCOMP support · Will Drewry <wad@chromium.org> · 2012-02-21
[PATCH v8 4/8] seccomp: add SECCOMP_RET_ERRNO · Will Drewry <wad@chromium.org> · 2012-02-16
[PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Markus Gutschke <hidden> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Andrew Lutomirski <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Eric Paris <eparis@redhat.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Andrew Lutomirski <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Andrew Lutomirski <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · "H. Peter Anvin" <hpa@zytor.com> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Indan Zupancic <hidden> · 2012-02-17
Re: [kernel-hardening] Re: [PATCH v8 3/8] seccomp: add system call filtering using BPF · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Will Drewry <wad@chromium.org> · 2012-02-16
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Joe Perches <joe@perches.com> · 2012-02-17
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Indan Zupancic <hidden> · 2012-02-17
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Will Drewry <wad@chromium.org> · 2012-02-17
Re: [PATCH v8 1/8] sk_run_filter: add support for custom load_pointer · Indan Zupancic <hidden> · 2012-02-17

From: "H. Peter Anvin" <hpa@zytor.com>
Date: 2012-02-17 04:11:30
Also in: linux-arch, lkml

On 02/16/2012 07:27 PM, Indan Zupancic wrote:

A JIT won't be able to merge accesses because it also has to merge other
instructions and recognize when 64-bit operations are done with 32-bit
instructions. I think that will be too hard for a JIT.

Please Google "peephole optimizer".

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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