在 2023年02月21日 12:36, Xi Ruoyao 写道:
On Mon, 2023-02-20 at 14:57 +0800, Tianrui Zhao wrote: /* snip */+/* + * for KVM_GET_FPU and KVM_SET_FPU + */ +struct kvm_fpu { + __u32 fcsr; + __u32 none; + __u64 fcc; /* 8x8 */ + struct kvm_fpureg { + __u64 val64[4]; //support max 256 bits + } fpr[32];Do we need __attribute__((__aligned__(16))) for fpureg (like sc_extcontext in struct sigcontext)?
Thanks, the loongarch_fpu variable is already has FPU_ALIGN feature in the kvm_vcpu_arch structure, so it need not to use __aligned__(16).
Thanks Tianrui Zhao
+}; + +/* + * For LOONGARCH, we use KVM_SET_ONE_REG and KVM_GET_ONE_REG to^^^^^^^^^ LoongArch
Thanks, I will fix it Thanks Tianrui Zhao
access various + * registers. The id field is broken down as follows: + * + * bits[63..52] - As per linux/kvm.h + * bits[51..32] - Must be zero. + * bits[31..16] - Register set.
