From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shannon Zhao <shannon.zhao@linaro.org>
Subject: Re: [PATCH v11 20/21] KVM: ARM: Introduce per-vcpu kvm device controls
Date: Sat, 20 Feb 2016 21:38:16 +0800
Message-ID: <56C86C48.2060702@linaro.org>
References: <1454656456-11640-1-git-send-email-zhaoshenglong@huawei.com> <1454656456-11640-21-git-send-email-zhaoshenglong@huawei.com> <20160208124059.GF620@cbox>
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Cc: kvmarm@lists.cs.columbia.edu, marc.zyngier@arm.com,
	linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
	will.deacon@arm.com, wei@redhat.com, cov@codeaurora.org,
	peter.huangpeng@huawei.com, hangaohuai@huawei.com,
	Peter Maydell <peter.maydell@linaro.org>,
	Paolo Bonzini <pbonzini@redhat.com>
To: Christoffer Dall <christoffer.dall@linaro.org>,
	Shannon Zhao <zhaoshenglong@huawei.com>
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On 2016/2/8 20:40, Christoffer Dall wrote:
>> +	case KVM_SET_DEVICE_ATTR: {
>> >+		if (copy_from_user(&attr, argp, sizeof(attr)))
>> >+			return -EFAULT;
>> >+		return kvm_arm_vcpu_set_attr(vcpu, &attr);
>> >+	}
>> >+	case KVM_GET_DEVICE_ATTR: {
>> >+		if (copy_from_user(&attr, argp, sizeof(attr)))
>> >+			return -EFAULT;
>> >+		return kvm_arm_vcpu_get_attr(vcpu, &attr);
>> >+	}
>> >+	case KVM_HAS_DEVICE_ATTR: {
>> >+		if (copy_from_user(&attr, argp, sizeof(attr)))
>> >+			return -EFAULT;
>> >+		return kvm_arm_vcpu_has_attr(vcpu, &attr);
>> >+	}
> do we share the ioctl number space across device, VM, and VCPU file
> descriptors?
Yeah, they're shared across device, VM, and VCPU.

Thanks,
-- 
Shannon