Re: [Qemu-devel] [PATCH v9 17/20] cpu: TLB_FLAGS_MASK bit to force memory slow path

[Richard Henderson]

On 8/23/19 11:36 AM, Tony Nguyen wrote:
> The fast path is taken when TLB_FLAGS_MASK is all zero.
> 
> TLB_FORCE_SLOW is simply a TLB_FLAGS_MASK bit to force the slow path,
> there are no other side effects.
> 
> Signed-off-by: Tony Nguyen <address@hidden>
> Reviewed-by: Richard Henderson <address@hidden>
> ---
>  include/exec/cpu-all.h | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)

FYI, while looking at this again, we do not need a new bit.  You can simply set
TLB_MMIO for this use case, like we do for ROM.

This seems to be the only change to be made for this patch set; I can fix this
up myself while queuing.


r~