Re: [Xen-devel] Need some advices on how to workaround a hardware bug

2018-04-02 Thread Chao Gao
On Fri, Mar 30, 2018 at 02:23:13AM -0600, Jan Beulich wrote: Chao Gao 03/30/18 7:19 AM >>> >>I met an EPT violation and then the guest was destroyed by Xen >>after assigning a device to the guest. After some investigation, I found >>it is caused by the device isn't a

Re: [Xen-devel] Need some advices on how to workaround a hardware bug

2018-03-30 Thread Jan Beulich
>>> Chao Gao 03/30/18 7:19 AM >>> >I met an EPT violation and then the guest was destroyed by Xen >after assigning a device to the guest. After some investigation, I found >it is caused by the device isn't a standard PCI device -- its MSI-x PBA >locates in the same 4k-byte

[Xen-devel] Need some advices on how to workaround a hardware bug

2018-03-29 Thread Chao Gao
Hi, I met an EPT violation and then the guest was destroyed by Xen after assigning a device to the guest. After some investigation, I found it is caused by the device isn't a standard PCI device -- its MSI-x PBA locates in the same 4k-byte page with other CSR. When the driver in guest writes the