From: "Luck, Tony" <tony.luck@intel.com>
To: Kees Cook <keescook@chromium.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-trace-kernel@vger.kernel.org"
<linux-trace-kernel@vger.kernel.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>,
Lorenzo Stoakes <lstoakes@gmail.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
"Guilherme G. Piccoli" <gpiccoli@igalia.com>,
"linux-hardening@vger.kernel.org"
<linux-hardening@vger.kernel.org>,
"Guenter Roeck" <linux@roeck-us.net>,
Ross Zwisler <zwisler@google.com>,
"wklin@google.com" <wklin@google.com>,
Vineeth Remanan Pillai <vineeth@bitbyteword.org>,
Joel Fernandes <joel@joelfernandes.org>,
"Suleiman Souhlal" <suleiman@google.com>,
Linus Torvalds <torvalds@linuxfoundation.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>
Subject: RE: [POC][RFC][PATCH 0/2] pstore/mm/x86: Add wildcard memmap to map pstore consistently
Date: Tue, 9 Apr 2024 22:25:33 +0000 [thread overview]
Message-ID: <SJ1PR11MB608317E066B6B3390F55FCB1FC072@SJ1PR11MB6083.namprd11.prod.outlook.com> (raw)
In-Reply-To: <202404091519.B7B2221@keescook>
>> I forgot to mention that this makes it trivial for any machine that doesn't
>> clear memory on soft-reboot, to enable console ramoops (to have access to
>> the last boot dmesg without needing serial).
>>
>> I tested this on a couple of my test boxes and on QEMU, and it works rather
>> well.
>
> I've long wanted a "stable for this machine and kernel" memory region
> like this for pstore. It would make testing much easier.
Which systems does this work on? I'd assume that servers (and anything
else with ECC memory) would nuke contents while resetting ECC to clean
state.
-Tony
next prev parent reply other threads:[~2024-04-09 22:25 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-09 21:02 [POC][RFC][PATCH 0/2] pstore/mm/x86: Add wildcard memmap to map pstore consistently Steven Rostedt
2024-04-09 21:02 ` [POC][RFC][PATCH 1/2] mm/x86: Add wildcard * option as memmap=nn*align:name Steven Rostedt
2024-04-09 22:23 ` Kees Cook
2024-04-09 23:11 ` Steven Rostedt
2024-04-09 23:41 ` Kees Cook
2024-04-12 20:59 ` Mike Rapoport
2024-04-12 22:19 ` Steven Rostedt
2024-04-15 17:22 ` Kees Cook
2024-05-01 14:57 ` Mike Rapoport
2024-05-06 10:38 ` Ard Biesheuvel
2024-05-08 23:23 ` Steven Rostedt
2024-04-09 21:02 ` [POC][RFC][PATCH 2/2] pstore/ramoops: Add ramoops.mem_name= command line option Steven Rostedt
2024-04-09 22:18 ` Kees Cook
2024-04-09 23:14 ` Steven Rostedt
2024-04-09 21:23 ` [POC][RFC][PATCH 0/2] pstore/mm/x86: Add wildcard memmap to map pstore consistently Steven Rostedt
2024-04-09 22:19 ` Kees Cook
2024-04-09 22:25 ` Luck, Tony [this message]
2024-04-09 22:41 ` Joel Fernandes
2024-04-09 23:16 ` Steven Rostedt
2024-04-09 23:37 ` Kees Cook
2024-04-09 23:52 ` Luck, Tony
2024-04-11 19:11 ` Guilherme G. Piccoli
2024-04-11 19:40 ` Steven Rostedt
2024-04-12 12:17 ` Guilherme G. Piccoli
2024-04-12 17:22 ` Steven Rostedt
2024-05-01 14:45 ` Mike Rapoport
2024-05-01 14:54 ` Steven Rostedt
2024-05-01 15:30 ` Mike Rapoport
2024-05-01 16:09 ` Steven Rostedt
2024-05-01 16:11 ` Mike Rapoport
2024-05-09 4:00 ` Steven Rostedt
2024-05-09 17:31 ` Steven Rostedt
2024-05-09 20:24 ` Mike Rapoport
2024-05-09 20:33 ` Steven Rostedt
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