> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: Monday, March 13, 2017 7:05 PM
>
> When an FPU instruction with a memory destination fails during the memory
> write, it should not affect FPU register state. Due to the way we emulate FPU
> (and SIMD) instructions, we can only guarantee this
On 13/03/17 11:05, Jan Beulich wrote:
> When an FPU instruction with a memory destination fails during the
> memory write, it should not affect FPU register state. Due to the way
> we emulate FPU (and SIMD) instructions, we can only guarantee this by
> - backing out changes to the FPU register stat
When an FPU instruction with a memory destination fails during the
memory write, it should not affect FPU register state. Due to the way
we emulate FPU (and SIMD) instructions, we can only guarantee this by
- backing out changes to the FPU register state in such a case or
- doing a descriptor read
