Re: [Xen-devel] [PATCH] x86/HVM: never retain emulated insn cache when exiting back to guest

[Juergen Gross <jgross@xxxxxxxx>]

On 20/04/18 16:19, Jan Beulich wrote:
> Commit 5fcb26e69e ("x86/HVM: don't retain emulated insn cache when
> exiting back to guest") didn't go quite far enough: The insn emulator
> may itself decide to return X86EMUL_RETRY (currently for certain
> CMPXCHG failures and AVX2 gather insns), in which case we'd also exit
> back to guest context. Tie the caching to whether we have an I/O
> completion pending, instead of x86_emulate()'s return value.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Release-acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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