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Re: [Qemu-devel] [PATCH] target-arm: Do not reset sysregs marked as ALIA
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] target-arm: Do not reset sysregs marked as ALIAS |
Date: |
Thu, 18 Jun 2015 21:46:10 +0100 |
On 17 June 2015 at 16:25, Sergey Fedorov <address@hidden> wrote:
> cp_reg_reset() is called from g_hash_table_foreach() which does not
> define a specific ordering of the hash table iteration. Thus doing reset
> for registers marked as ALIAS would give an ambiguous result when
> resetvalue is different for original and alias resisters.
Was this actually the case for any of our registers? ie, is this
patch fixing a bug, or just cleaning up a potential cause of
confusion?
> Exit
> cp_reg_reset() early when passed an alias register. Then clean up alias
> register definitions from needless resetvalue and resetfn.
>
> Signed-off-by: Sergey Fedorov <address@hidden>
I've applied it to target-arm.next, but if this is fixing a bug
it would be nice if I could update the commit message to say so.
thanks
-- PMM