From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Laszlo Ersek <lersek@redhat.com>
Cc: "Ard Biesheuvel" <ardb@kernel.org>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Xiaoyao Li" <xiaoyao.li@intel.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Peter Maydell" <peter.maydell@linaro.org>,
"Gerd Hoffmann" <kraxel@redhat.com>,
linux-efi <linux-efi@vger.kernel.org>
Subject: Re: [PATCH v2] hw/i386: place setup_data at fixed place in memory
Date: Thu, 4 Aug 2022 14:11:13 +0200 [thread overview]
Message-ID: <Yuu3YeTRLE/gx6YC@zx2c4.com> (raw)
In-Reply-To: <eadc852a-63f9-a017-aef7-f046eb56e28f@redhat.com>
Hi Laszlo,
On Thu, Aug 04, 2022 at 01:31:36PM +0200, Laszlo Ersek wrote:
> None of the existing info passing methods seem early enough, generic
> enough, and secure enough (at the same time)...
Can you look at the v2 patch? It seems to work on every configuration I
throw at it. Keep in mind that setup_data is only used very, very early.
I can think of a few other places to put it too, looking at the x86
memory map, that will survive long enough.
I think this might actually be a straightforwardly solvable problem if
you think about it more basically.
Jason
next prev parent reply other threads:[~2022-08-04 12:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-03 17:02 [PATCH RFC v1] hw/i386: place setup_data at fixed place in memory Jason A. Donenfeld
2022-08-03 22:25 ` Michael S. Tsirkin
2022-08-03 22:50 ` Jason A. Donenfeld
2022-08-04 0:39 ` Jason A. Donenfeld
2022-08-04 0:44 ` [PATCH v2] " Jason A. Donenfeld
2022-08-04 7:03 ` Michael S. Tsirkin
[not found] ` <bfa5704d-755c-5a52-e7cc-bd9b34e5bb03@redhat.com>
2022-08-04 9:25 ` Daniel P. Berrangé
2022-08-04 10:26 ` Ard Biesheuvel
[not found] ` <eadc852a-63f9-a017-aef7-f046eb56e28f@redhat.com>
2022-08-04 12:11 ` Jason A. Donenfeld [this message]
2022-08-04 12:47 ` Jason A. Donenfeld
[not found] ` <5528ca40-50fb-8e92-7f24-80e20c4c983e@redhat.com>
2022-08-04 13:25 ` Jason A. Donenfeld
2022-08-04 12:03 ` Jason A. Donenfeld
2022-08-04 12:11 ` Daniel P. Berrangé
2022-08-04 12:16 ` Ard Biesheuvel
2022-08-04 12:17 ` Jason A. Donenfeld
2022-08-04 12:28 ` Jason A. Donenfeld
[not found] ` <cf60456e-a2cd-a64d-0cee-4bea30708fc9@redhat.com>
2022-08-04 13:28 ` Jason A. Donenfeld
[not found] ` <8254819e-d509-59f4-79e6-e8c0ba4eb2a6@redhat.com>
2022-08-04 14:03 ` Daniel P. Berrangé
2022-08-04 22:56 ` Jason A. Donenfeld
2022-08-04 23:04 ` [PATCH v3] " Jason A. Donenfeld
2022-08-05 8:10 ` Paolo Bonzini
2022-08-05 11:08 ` Ard Biesheuvel
2022-08-05 17:29 ` Paolo Bonzini
2022-08-05 17:56 ` Ard Biesheuvel
2022-08-09 9:17 ` Michael S. Tsirkin
2022-08-09 14:19 ` Paolo Bonzini
2022-08-05 12:47 ` Jason A. Donenfeld
2022-08-09 12:17 ` Jason A. Donenfeld
2022-08-09 14:07 ` Michael S. Tsirkin
2022-08-09 14:15 ` Daniel P. Berrangé
2022-08-16 8:55 ` [PATCH v2] " Gerd Hoffmann
2022-08-18 15:38 ` Jason A. Donenfeld
2022-08-19 6:40 ` Gerd Hoffmann
2022-08-19 7:16 ` Ard Biesheuvel
2022-08-04 12:54 ` Daniel P. Berrangé
2022-08-04 13:07 ` Jason A. Donenfeld
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