On 2024/8/6 20:46, Xiangkai Yang wrote:
virtcca inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/IADD42
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virtCCA feature Signed-off-by: Xiangkai Yang <yangxiangkai@huawei.com> --- arch/arm64/include/asm/kvm_tmi.h | 244 +++-- arch/arm64/include/asm/kvm_tmm.h | 22 + arch/arm64/kvm/tmi.c | 128 ++- arch/arm64/kvm/virtcca_cvm.c | 10 +- drivers/iommu/arm/arm-smmu-v3/Makefile | 1 + drivers/iommu/arm/arm-smmu-v3/arm-s-smmu-v3.c | 841 ++++++++++++++++++ drivers/iommu/arm/arm-smmu-v3/arm-s-smmu-v3.h | 198 +++++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 168 +++- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 16 + include/linux/iommu.h | 4 + 10 files changed, 1548 insertions(+), 84 deletions(-)
请问你这是啥？为啥要这个东西？怎么保持跟现有系统兼容？你的侵入式改动对现有系统有什么影响？ 1600+行代码的修改，就一个补丁，大家怎么review？