Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Sohil Mehta <sohil.mehta@xxxxxxxxx>
Subject: Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Date: Fri, 4 Jul 2025 12:23:53 +0300
Cc: Andy Lutomirski <luto@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, "H. Peter Anvin" <hpa@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Xiongwei Song <xiongwei.song@xxxxxxxxxxxxx>, Xin Li <xin3.li@xxxxxxxxx>, "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>, Brijesh Singh <brijesh.singh@xxxxxxx>, Michael Roth <michael.roth@xxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Alexey Kardashevskiy <aik@xxxxxxx>, Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx>, Daniel Sneddon <daniel.sneddon@xxxxxxxxxxxxxxx>, Kai Huang <kai.huang@xxxxxxxxx>, Sandipan Das <sandipan.das@xxxxxxx>, Breno Leitao <leitao@xxxxxxxxxx>, Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Hou Tao <houtao1@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Vegard Nossum <vegard.nossum@xxxxxxxxxx>, Kees Cook <kees@xxxxxxxxxx>, Eric Biggers <ebiggers@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, "Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Luis Chamberlain <mcgrof@xxxxxxxxxx>, Yuntao Wang <ytcoode@xxxxxxxxx>, Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Changbin Du <changbin.du@xxxxxxxxxx>, Huang Shijie <shijie@xxxxxxxxxxxxxxxxxxxxxx>, Geert Uytterhoeven <geert+renesas@xxxxxxxxx>, Namhyung Kim <namhyung@xxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx
In-reply-to: <e0c0a8f8-7ec6-4f54-801d-86f7ca1cbf7c@intel.com>
References: <20250701095849.2360685-1-kirill.shutemov@linux.intel.com> <20250701095849.2360685-15-kirill.shutemov@linux.intel.com> <95dc18fd-73b0-4019-92d2-c0e6aaf22c96@intel.com> <mgo3qfjekobe6qflwkpey3p7tzsp3b2mrirama4w2rxyckce7g@3gce3fn5emvu> <bbe9dfb6-88c7-4724-bafd-0524599c9369@intel.com> <h7pjqco4nngern4ucj2krt4uuau5v522ni6w5vjup3qlkvn2yb@oskfps5mlzbc> <e0c0a8f8-7ec6-4f54-801d-86f7ca1cbf7c@intel.com>

On Thu, Jul 03, 2025 at 01:12:11PM -0700, Sohil Mehta wrote:
> I believe we should include a #SS specific notify before calling
> die_addr(). Similar to exc_alignment_check() which dies on kernel
> exceptions.

You are right. Will update this.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov

References:
- [PATCHv8 00/17] x86: Enable Linear Address Space Separation support
  - From: Kirill A. Shutemov
- [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Kirill A. Shutemov
- Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Sohil Mehta
- Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Kirill A. Shutemov
- Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Sohil Mehta
- Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Kirill A. Shutemov
- Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
  - From: Sohil Mehta

Prev by Date: Re: [RFC V2 15/18] famfs_fuse: Plumb dax iomap and fuse read/write/mmap
Next by Date: Re: [PATCH net-next v4] ipv6: add `force_forwarding` sysctl to enable per-interface forwarding
Previous by thread: Re: [PATCHv8 14/17] x86/traps: Handle LASS thrown #SS
Next by thread: [PATCHv8 16/17] x86/cpu: Enable LASS during CPU initialization
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Security] [Netfilter] [Bugtraq] [Linux FS] [Yosemite Forum] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Samba] [Video 4 Linux] [Device Mapper] [Linux Resources]