This is a 2nd itteration for arm64, v1 patches were posted by mistake from an older branch which included several bugs. Hopefully didn't waste too much of anyones time. This patch series is a followup to the armv7 fp/simd lazy switch implementation, uses similar approach and depends on the series - see https://lists.cs.columbia.edu/pipermail/kvmarm/2015-September/016516.html It's based on earlier arm64 fp/simd optimization work - see https://lists.cs.columbia.edu/pipermail/kvmarm/2015-July/015748.html And subsequent fixes by Marc and Christoffer at KVM Forum hackathon to handle 32-bit guest on 64 bit host (and may require more here) - see https://lists.cs.columbia.edu/pipermail/kvmarm/2015-August/016128.html This series has be tested with arm64 on arm64 with several FP applications running on host and guest, with substantial decrease on number of fp/simd context switches. From about 30% down to 2% with one guest running. At this time I don't have arm32/arm64 working and hoping Christoffer and/or Marc (or anyone) can test 32-bit guest/64-bit host. Mario Smarduch (2): add hooks for armv8 fp/simd lazy switch enable armv8 fp/simd lazy switch arch/arm/kvm/arm.c | 2 -- arch/arm64/include/asm/kvm_asm.h | 1 + arch/arm64/include/asm/kvm_host.h | 3 ++ arch/arm64/kernel/asm-offsets.c | 1 + arch/arm64/kvm/hyp.S | 58 ++++++++++++++++++++++++++------------- 5 files changed, 44 insertions(+), 21 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
