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Loongson SIMD Extension (LSX), Loongson Advanced SIMD Extension (LASX) and Loongson Binary Translation (LBT) features are defined in register CPUCFG2. Two kinds of LSX/LASX/LBT feature detection are added here, one is VCPU feature, and the other is VM feature. VCPU feature dection can only work with VCPU thread itself, and requires VCPU thread is created already. So LSX/LASX/LBT feature detection for VM is added also, it can be done even if VM is not created, and also can be done by any threads besides VCPU threads. Here ioctl command KVM_HAS_DEVICE_ATTR is added for VM, and macro KVM_LOONGARCH_VM_FEAT_CTRL is added to check supported feature. And five sub-features relative with LSX/LASX/LBT are added as following: KVM_LOONGARCH_VM_FEAT_LSX KVM_LOONGARCH_VM_FEAT_LASX KVM_LOONGARCH_VM_FEAT_X86BT KVM_LOONGARCH_VM_FEAT_ARMBT KVM_LOONGARCH_VM_FEAT_MIPSBT Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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| .. | ||
| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| pci | ||
| power | ||
| vdso | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||