[PATCH v2 1/2] arm64: KVM: Optimize arm64 fp/simd save/restore

Marc Zyngier marc.zyngier at arm.com
Thu Jun 18 10:04:14 PDT 2015


On 16/06/15 22:50, Mario Smarduch wrote:
> This patch only saves and restores FP/SIMD registers on Guest access. To do
> this cptr_el2 FP/SIMD trap is set on Guest entry and later checked on exit.
> lmbench, hackbench show significant improvements, for 30-50% exits FP/SIMD
> context is not saved/restored
> 
> Signed-off-by: Mario Smarduch <m.smarduch at samsung.com>

Looks nice and clean.

Reviewed-by: Marc Zyngier <marc.zyngier at arm.com>

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...



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