From: Nia Su <nia.su@sifive.com>
To: opensbi@lists.infradead.org
Cc: Nia Su <nia.su@sifive.com>, Nylon Chen <nylon.chen@sifive.com>,
Nick Hu <nick.hu@sifive.com>, Zong Li <zong.li@sifive.com>,
Evgeny Voevodin <evvoevod@tenstorrent.com>
Subject: [PATCH 0/2] lib: sbi: Fix stale trap_context/prev_context linking
Date: Fri, 04 Sep 2026 01:16:42 -0700 [thread overview]
Message-ID: <20260904-trap-context-fix-v1-0-6bf7fa45d5f1@sifive.com> (raw)
Patch 1 clears scratch->trap_context on warm boot, since
non-retentive suspend/resume jumps straight there without restoring
it, leaving a stale pointer misused as the next trap's prev_context.
Patch 2 fixes sbi_trap_rnmi_handler() to link prev_context on entry
and restore it on exit, the same way sbi_trap_handler() does.
Signed-off-by: Nia Su <nia.su@sifive.com>
---
Nia Su (2):
firmware: Clear scratch->trap_context on warm boot
lib: sbi: Fix stale prev_context in RNMI handler
firmware/fw_base.S | 3 +++
lib/sbi/sbi_trap.c | 10 ++++++++--
2 files changed, 11 insertions(+), 2 deletions(-)
---
base-commit: 35511bc6ee1c9c17b6a89b44c52e2044bb51b979
change-id: 20260902-trap-context-fix-b9e78441953e
--
--
opensbi mailing list
opensbi@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/opensbi
next reply other threads:[~2026-09-04 8:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 8:16 Nia Su [this message]
2026-09-04 8:16 ` [PATCH 1/2] firmware: Clear scratch->trap_context on warm boot Nia Su
2026-09-04 8:16 ` [PATCH 2/2] lib: sbi: Fix stale prev_context in RNMI handler Nia Su
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-all 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=20260904-trap-context-fix-v1-0-6bf7fa45d5f1@sifive.com \
--to=nia.su@sifive.com \
--cc=evvoevod@tenstorrent.com \
--cc=nick.hu@sifive.com \
--cc=nylon.chen@sifive.com \
--cc=opensbi@lists.infradead.org \
--cc=zong.li@sifive.com \
/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