[PATCH v4 11/12] KVM: arm64: BTI: Reset BTYPE when skipping emulated instructions

Catalin Marinas catalin.marinas at arm.com
Tue Jan 14 09:36:56 PST 2020


On Wed, Dec 11, 2019 at 03:42:05PM +0000, Mark Brown wrote:
> From: Dave Martin <Dave.Martin at arm.com>
> 
> Since normal execution of any non-branch instruction resets the
> PSTATE BTYPE field to 0, so do the same thing when emulating a
> trapped instruction.
> 
> Branches don't trap directly, so we should never need to assign a
> non-zero value to BTYPE here.
> 
> Signed-off-by: Dave Martin <Dave.Martin at arm.com>
> Signed-off-by: Mark Brown <broonie at kernel.org>

Reviewed-by: Catalin Marinas <catalin.marinas at arm.com>



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