Subject: Re: [PATCH v2 07/29] LoongArch: KVM: Implement vcpu run interface
To:     Paolo Bonzini <pbonzini@redhat.com>
References: <20230220065735.1282809-1-zhaotianrui@loongson.cn>
 <20230220065735.1282809-8-zhaotianrui@loongson.cn>
 <489768bf-34e1-305b-9264-cdb1cebf3be2@redhat.com>
Cc:     Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        loongarch@lists.linux.dev, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
        Mark Brown <broonie@kernel.org>,
        Alex Deucher <alexander.deucher@amd.com>,
        Oliver Upton <oliver.upton@linux.dev>, maobibo@loongson.cn
From:   Tianrui Zhao <zhaotianrui@loongson.cn>
Message-ID: <6f78f884-2d57-d112-a179-bac6be6688bc@loongson.cn>
Date:   Wed, 22 Feb 2023 10:08:21 +0800
User-Agent: Mozilla/5.0 (X11; Linux mips64; rv:45.0) Gecko/20100101
 Thunderbird/45.4.0
MIME-Version: 1.0
In-Reply-To: <489768bf-34e1-305b-9264-cdb1cebf3be2@redhat.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk


在 2023年02月21日 02:44, Paolo Bonzini 写道:
> On 2/20/23 07:57, Tianrui Zhao wrote:
>> +    lose_fpu(1);
>
> Is this enough to clear CSR_EUEN_FPEN?

Yes, in lose_fpu function, the task's CSR_EUEN_FPEN flag is unmasked.

Thanks
Tianrui Zhao

>
>
> Paolo