[Qemu-devel] Some issues of hotpluging memory and cpus

[linzhecheng]

Hi, all,
I had some problems when doing memory hot plugging. After a lot of tests, I was 
able to stably reproduce the following issues with Windows 2012 R2:

1. If I hot-plug the memory immediately after hot-plugging the CPUs, these 
memory devices will not be detected by windows OS because I cannot see them in 
the device manager.
2. If I add a certain delay (for example, 2s or more) between the hot-plugging 
memory and the CPU, the memory devices will be detected but some of them may 
not be online.
And Memory Module Properties displaying the following contents:

This device cannot start. (Code 10)
{Conflicting Address Range}
The specified address range conflicts with the address space.

3. usb tablet mouse would not work probability after hot adding memory.

Due to the closed nature of windows OS, I can't know what's going on inside.
Is it related to acpi tables exposure?
I hope you can give me some advice, thank you.