On Wed, May 20, 2015 at 03:26:12PM +1000, Sam Bobroff wrote:
> In 64 bit kernels, the Fixed Point Exception Register (XER) is a 64
> bit field (e.g. in kvm_regs and kvm_vcpu_arch) and in most places it is
> accessed as such.
> 
> This patch corrects places where it is accessed as a 32 bit field by a
> 64 bit kernel.  In some cases this is via a 32 bit load or store
> instruction which, depending on endianness, will cause either the
> lower or upper 32 bits to be missed.  In another case it is cast as a
> u32, causing the upper 32 bits to be cleared.
> 
> This patch corrects those places by extending the access methods to
> 64 bits.
> 
> Signed-off-by: Sam Bobroff <[email protected]>

Acked-by: Paul Mackerras <[email protected]>
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