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39fdf4be72
Implement LoongArch vcpu world switch, including vcpu enter guest and vcpu exit from guest, both operations need to save or restore the host and guest registers. Reviewed-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>