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target/loongarch/kvm: Enable LSX/LASX extension
The kernel had already support LSX and LASX [1], but QEMU is disable LSX/LASX for kvm. This patch adds kvm_check_cpucfg2() to check CPUCFG2. [1]: https://lore.kernel.org/all/CABgObfZHRf7E_7Jk4uPRmSyxTy3EiuuYwHC35jQncNL9s-zTDA@mail.gmail.com/ Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Bibo Mao <maobibo@loongson.cn> Message-Id: <20240122090206.1083584-1-gaosong@loongson.cn>
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