发现ACPI但它位于512MB以上，2767MB。所以有什么问题？ [英] Found ACPI but it was located above 512MB at 2767MB. So what's the problem?

问题描述

我正在使用基于x86的平台。我的目的是为这个平台创建一个BSP

I am using x86 based platform. My intention is to create a BSP for this platform

我使用的是串行Kitl。

I am using serial Kitl.

启动时，我看到一些消息说，

While booting, I see some messages that say,

"找到ACPI，但它位于512MB以上，为2767MB"

"Found ACPI but it was located above 512MB at 2767MB"

这样可以吗？或者会有任何问题？

Is this OK? or there is going to be any problem?

此外，我也看到，在加载EHCI驱动程序时，一旦写入请求EHCI控制器所有权的PCI配置数据，它就会正在导致SMI，并在SMI处理程序中旋转并且永远不会返回，因此系统挂起。这个问题
与ACPI相关的位于dwOEMTotalRAM之外吗？

In addition, I am also seeing that, while loading EHCI driver, as soon as it writes a PCI config data requesting ownership of EHCI controller, it is causing an SMI, and spins in the SMI handler and never returns, consequently the system hangs. Is this problem related to ACPI located beyond dwOEMTotalRAM?

请告知我如何解决这个问题。

Please advice how I can solve this hang issue.

谢谢，

Madhusudan

Madhusudan

推荐答案

没有问题使用提示消息"找到ACPI，但它位于512MB以上，2767MB"。

There is not an issue with the tip message "Found ACPI but it was located above 512MB at 2767MB".

在WEC7中，对于内存映射，它将首先找到RSDP，然后为ACPI表保留一个区域。在其他操作系统中，例如Linux和Windows 7，E820可以正常工作。

In WEC7 for memory map, it will find RSDP first and then reserve an area for ACPI tables. In other OS, such as Linux and windows 7 it is E820 that works.

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