From: Dave Hansen <dave.hansen@intel.com>
To: Kyle Huey <me@kylehuey.com>, Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>, Ingo Molnar <mingo@redhat.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Sean Christopherson <seanjc@google.com>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
Robert O'Callahan <robert@ocallahan.org>,
David Manouchehri <david.manouchehri@riseup.net>
Subject: Re: [PATCH v7 0/6] x86/fpu: Allow PKRU to be (once again) written by ptrace
Date: Wed, 16 Nov 2022 15:31:12 -0800 [thread overview]
Message-ID: <773a9deb-b017-20e5-cebe-d9c35ac4fd3d@intel.com> (raw)
In-Reply-To: <20221115230932.7126-1-khuey@kylehuey.com>
On 11/15/22 15:09, Kyle Huey wrote:
> Following last week's discussion I've reorganized this patch. The goal
> remains to restore the pre-5.14 behavior of ptrace(PTRACE_SET_REGSET,
> NT_X86_XSTATE) for the PKRU register (which was equivalent to a hardware
> XRSTOR instruction).
The new version looks great. I've applied it.
I did remove the stable@ tags for now. There were a couple reasons for
that. First, most of the x86 stuff marked for stable@ goes via our
tip/urgent branch and this doesn't seem super urgent. It also touches
code that's exposed in at least three separate UABIs, so I want a bit
more soak time than x86/urgent normally provides.
I have zero objections if anyone wants to submit it to stable@ after it
hits Linus's tree.
next prev parent reply other threads:[~2022-11-16 23:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-15 23:09 [PATCH v7 0/6] x86/fpu: Allow PKRU to be (once again) written by ptrace Kyle Huey
2022-11-15 23:09 ` [PATCH v7 1/6] x86/fpu: Take task_struct* in copy_sigframe_from_user_to_xstate() Kyle Huey
2022-11-15 23:09 ` [PATCH v7 2/6] x86/fpu: Add a pkru argument to copy_uabi_from_kernel_to_xstate() Kyle Huey
2022-11-15 23:09 ` [PATCH v7 3/6] x86/fpu: Add a pkru argument to copy_uabi_to_xstate() Kyle Huey
2022-11-15 23:09 ` [PATCH v7 4/6] x86/fpu: Allow PKRU to be (once again) written by ptrace Kyle Huey
2022-11-15 23:09 ` [PATCH v7 5/6] x86/fpu: Emulate XRSTOR's behavior if the xfeatures PKRU bit is not set Kyle Huey
2022-11-15 23:09 ` [PATCH v7 6/6] selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace Kyle Huey
2022-11-16 23:31 ` Dave Hansen [this message]
2022-11-17 0:45 ` [PATCH v7 0/6] x86/fpu: Allow PKRU to be (once again) written by ptrace Kyle Huey
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