Necessary to disable "Above 4G Decoding" for View with vGPU?

大家好，
我正在通过以下链接阅读View 6.2的GRID部署指南：
https://www.vmware.com/files/pdf/products/horizo​​n/grid-vgpu-deployment-guide.pdf
在第17页，它为几个服务器制造商提供了BIOS建议。
它建议禁用SuperMicro的“Above 4G Decoding”。
对于Dom0为32位的XenServer 6.2，这是必需的。
在64位Dom0的XenServer 6.5中，没有必要禁用此设置。
vmkernel是64位所以我想知道是否真的有必要禁用此设置？
在我们的SuperMicro测试中，禁用此设置会生成“检测到PCI资源不足”警告。
所有SuperMicro支持文章都建议启用“Above 4G Decoding”来解决此警告消息。
BIOS是最新版本，SuperMicro直接出厂，我们在XenServer 6.2和6.5上使用相同型号的GRID而没有问题。
如果您有使用vSphere 6的“Above 4G Decoding”设置和使用vGPU查看的经验，请提供建议。
谢谢！
理查德



以下为原文

Hi All,

I am reading through the GRID deployment guide for View 6.2 at the following link:


https://www.vmware.com/files/pdf/products/horizon/grid-vgpu-deployment-guide.pdf


On page 17, it gives the BIOS recommendations for several server manufacturers.  It advises to disable the "Above 4G Decoding" for SuperMicro.  This was necessary for XenServer 6.2 where Dom0 was 32bit.  In the 64bit Dom0 of XenServer 6.5, it is not necessary to disable this setting.  The vmkernel is 64 bit so I want to know if it is really necessary to disable this setting?  

On our test SuperMicro, disabling this setting generates an "Insufficient PCI Resources Detected" warning.  All the SuperMicro support articles advise to enable "Above 4G Decoding" to resolve this warning message.   The BIOS is at the latest version and SuperMicro is straight from the factory and we've used this same model for GRID on XenServer 6.2 and 6.5 without issue.

If you have experience with the "Above 4G Decoding" setting for vSphere 6 and View with vGPU, please advise.

Thanks!

Richard