From: Bill Wendling <morbo@google.com>
To: Juergen Gross <jgross@suse.com>,
"Srivatsa S. Bhat (VMware)" <srivatsa@csail.mit.edu>,
Alexey Makhalov <amakhalov@vmware.com>,
VMware PV-Drivers Reviewers <pv-drivers@vmware.com>,
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, "H. Peter Anvin" <hpa@zytor.com>,
virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
llvm@lists.linux.dev
Cc: Bill Wendling <morbo@google.com>
Subject: [PATCH 0/2] fix clobbers list with ZERO_CALL_USED_REGS feature
Date: Fri, 2 Sep 2022 21:37:48 +0000 [thread overview]
Message-ID: <20220902213750.1124421-1-morbo@google.com> (raw)
The ZERO_CALL_USED_REGS feature may zero out callee-saved registers. This needs
to be properly modeled by things like code alternatives. Otherwise, it's
possible that a callee-saved register would be expected to remain unchanged
past an ASM statement when in reality it isn't.
Bill Wendling (2):
x86/paravirt: clean up typos and grammaros
x86/paravirt: add extra clobbers with ZERO_CALL_USED_REGS enabled
arch/x86/include/asm/paravirt_types.h | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
--
2.37.2.789.g6183377224-goog
next reply other threads:[~2022-09-02 21:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 21:37 Bill Wendling [this message]
2022-09-02 21:37 ` [PATCH 1/2] x86/paravirt: clean up typos and grammaros Bill Wendling
2022-09-03 4:28 ` Borislav Petkov
2022-09-04 2:13 ` Bill Wendling
2022-09-02 21:37 ` [PATCH 2/2] x86/paravirt: add extra clobbers with ZERO_CALL_USED_REGS enabled Bill Wendling
2022-09-03 7:18 ` Kees Cook
2022-09-05 6:02 ` Bill Wendling
2022-09-07 6:00 ` Nick Desaulniers
2022-09-07 8:50 ` Peter Zijlstra
2022-09-07 23:10 ` Kees Cook
2022-09-08 21:16 ` Bill Wendling
2022-09-14 14:40 ` Nathan Chancellor
2022-09-14 15:49 ` Bill Wendling
[not found] ` <20220914162149.71271-1-morbo@google.com>
2022-09-15 6:59 ` [PATCH v2 1/1] x86/paravirt: write paravirt ident function in assembly Juergen Gross
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=20220902213750.1124421-1-morbo@google.com \
--to=morbo@google.com \
--cc=amakhalov@vmware.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=jgross@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=mingo@redhat.com \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=pv-drivers@vmware.com \
--cc=srivatsa@csail.mit.edu \
--cc=tglx@linutronix.de \
--cc=virtualization@lists.linux-foundation.org \
--cc=x86@kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).