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Re: [Qemu-devel] [PATCH 1/2] target/arm: Use extract2 for EXTR

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH 1/2] target/arm: Use extract2 for EXTR
Date: Tue, 9 Jul 2019 17:40:48 +0100

On Tue, 14 May 2019 at 02:11, Richard Henderson
<address@hidden> wrote:
> This is, after all, how we implement extract2 in tcg/aarch64.
> Reviewed-by: Peter Maydell <address@hidden>
> Signed-off-by: Richard Henderson <address@hidden>
> ---
>  target/arm/translate-a64.c | 38 ++++++++++++++++++++------------------
>  1 file changed, 20 insertions(+), 18 deletions(-)

It turns out that we have a regression in booting at least
some Linux kernels with TCG on aarch64 hosts (the same
config works fine on x86-64 hosts). Git bisect points to
this commit (80ac954c369e7e61bd1ed0) as the cause, and
reverting this commit on top of current master also fixes
the problem.

-- PMM

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