public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: "Pedro Falcato" <pedro.falcato@gmail.com>
To: edk2-devel-groups-io <devel@edk2.groups.io>
Subject: Question about UEFI, AddressSanitizer and MMU mappings
Date: Thu, 24 Mar 2022 22:32:29 +0000	[thread overview]
Message-ID: <CAKbZUD0McHc7-n5OCM5Z8UgT5fWtBgrJcioqzmwpVRK2My+4YA@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 578 bytes --]

Hi!

I've been thinking about adding sanitizer support (UBSan and KASAN), like
coreboot already has, to the wiki's Tasks for the upcoming GSoC, but I'm a
bit confused by something.
Is there anything in the UEFI spec that stops us from doing non-identity
memory mappings? I know it specifies the need for the identity mappings (in
the architectures where it requires the MMU being enabled), but nowhere do
I see anything about the other parts of the address space.
Of course, UEFI supporting AddressSanitizer would be kind of dependent on
fancier memory mappings.

Thanks,
Pedro

[-- Attachment #2: Type: text/html, Size: 804 bytes --]

             reply	other threads:[~2022-03-24 22:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-24 22:32 Pedro Falcato [this message]
2022-03-25  9:07 ` [edk2-devel] Question about UEFI, AddressSanitizer and MMU mappings Marvin Häuser
2022-03-25 18:42   ` Andrew Fish
2022-03-25 20:47     ` Pedro Falcato
2022-03-26 18:30       ` Vitaly Cheptsov
2022-03-28 11:32       ` Steven Shi
2022-03-28 16:30         ` Pedro Falcato
2022-03-29 11:58           ` Steven Shi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAKbZUD0McHc7-n5OCM5Z8UgT5fWtBgrJcioqzmwpVRK2My+4YA@mail.gmail.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox