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From: Peter Maydell <peter.maydell@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Subject: Re: [PATCH] target/arm: Enable SCTLR_EL1.BT0 for aarch64-linux-user
Date: Tue, 3 May 2022 16:24:43 +0100	[thread overview]
Message-ID: <CAFEAcA_twqKhn2CttPSx78W21UXoOrm8hfoObQ9a9ejPJqPJ-A@mail.gmail.com> (raw)
In-Reply-To: <40272c05-c2d5-756e-5096-a05f53367095@linaro.org>

On Thu, 28 Apr 2022 at 16:19, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> On 4/28/22 05:56, Peter Maydell wrote:
> > On Wed, 27 Apr 2022 at 05:23, Richard Henderson
> > <richard.henderson@linaro.org> wrote:
> >>
> >> This controls whether the PACI{A,B}SP instructions trap with BTYPE=3
> >> (indirect branch from register other than x16/x17).  The linux kernel
> >> sets this in bti_enable().
> >>
> >> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/998
> >> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> >
> >> --- a/tests/tcg/aarch64/Makefile.target
> >> +++ b/tests/tcg/aarch64/Makefile.target
> >> @@ -26,11 +26,11 @@ run-plugin-pauth-%: QEMU_OPTS += -cpu max
> >>   endif
> >>
> >>   # BTI Tests
> >> -# bti-1 tests the elf notes, so we require special compiler support.
> >> +# bti-1 test the elf notes, so we require special compiler support.
> >
> > Did you intend to edit this comment line ?
> >
> > Otherwise
> > Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
>
> Oops, no.  At one point I had bti-3 sharing this line, and following code, but it didn't work.

OK; applied to target-arm.next with that line fixed up, thanks.

-- PMM


      reply	other threads:[~2022-05-03 15:26 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-27  4:23 [PATCH] target/arm: Enable SCTLR_EL1.BT0 for aarch64-linux-user Richard Henderson
2022-04-28 12:56 ` Peter Maydell
2022-04-28 15:19   ` Richard Henderson
2022-05-03 15:24     ` Peter Maydell [this message]

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