From: Cornelia Huck <cohuck@redhat.com>
To: Thomas Huth <thuth@redhat.com>
Cc: qemu-devel@nongnu.org, Richard Henderson <rth@twiddle.net>,
David Hildenbrand <david@redhat.com>,
qemu-s390x@nongnu.org, borntraeger@de.ibm.com,
"Jason J. Herne" <jjherne@linux.ibm.com>
Subject: Re: [Qemu-devel] [PATCH v3] target/s390x: Remove non-architected entries from struct LowCore
Date: Tue, 5 Mar 2019 10:55:28 +0100 [thread overview]
Message-ID: <20190305105528.60d4e4c3.cohuck@redhat.com> (raw)
In-Reply-To: <1551775581-27989-1-git-send-email-thuth@redhat.com>
On Tue, 5 Mar 2019 09:46:21 +0100
Thomas Huth <thuth@redhat.com> wrote:
> There are some fields in our struct LowCore which apparently have
> been copied from a very old version of the Linux kernel. These
> fields are not architected in the "Principles of Operation", and
> only used on these memory locations in Linux kernels older than
> 2.6.29. Newer Linux kernels moved the entries to different locations
> or are not using them at all anymore. Thus we should never access
> these fields from the QEMU side, so they should be removed.
>
> While we're at it, also add a QEMU_BUILD_BUG_MSG() statement to
s/QEMU_BUILD_BUG_MSG/QEMU_BUILD_BUG_ON/ :)
(fixed up while applying)
> assert that struct LowCore has the right size.
>
> Reviewed-by: David Hildenbrand <david@redhat.com>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
> v3: Use QEMU_BUILD_BUG_ON instead of QEMU_BUILD_BUG_MSG
>
> target/s390x/internal.h | 41 ++---------------------------------------
> 1 file changed, 2 insertions(+), 39 deletions(-)
Thanks, applied.
next prev parent reply other threads:[~2019-03-05 10:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-05 8:46 [Qemu-devel] [PATCH v3] target/s390x: Remove non-architected entries from struct LowCore Thomas Huth
2019-03-05 9:55 ` Cornelia Huck [this message]
2019-03-05 10:28 ` Christian Borntraeger
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