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Re: [Qemu-devel] [PATCH 5/6] target-arm/kvm64: fix save/restore of SPSR
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH 5/6] target-arm/kvm64: fix save/restore of SPSR regs |
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Date: |
Mon, 9 Mar 2015 22:31:19 +0900 |
On 9 March 2015 at 21:56, Christoffer Dall <address@hidden> wrote:
> this function, however, is not used only when migration, but should
> generally cover the case where you want to synchronize QEMU's state into
> KVM's state, right? So while it may not be harmful in currently
> supported use cases, is there ever a situation where (is_a64(env) && el
> == 0) and env->spsr != banked_spsr[el], and where env->spsr is
> out-of-date?
If EL == 0 then you can't access any SPSR, so env->spsr is by
definition out of date.
-- PMM