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[Xen-ia64-devel] vcpu_translate issue
| To: | "Magenheimer, Dan \(HP Labs Fort Collins\)" <dan.magenheimer@xxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel] vcpu_translate issue |
| From: | "Xu, Anthony" <anthony.xu@xxxxxxxxx> |
| Date: | Fri, 4 Nov 2005 18:20:00 +0800 |
| Cc: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 04 Nov 2005 10:20:06 +0000 |
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| Thread-index: | AcXhKVAX2ekaVUdwQTebibJkSrMe9A== |
| Thread-topic: | vcpu_translate issue |
Dan, In vcpu_translate function, if guest address is within region 0 and guest is in virtual mode, vcpu_translate will print warning message and don't translate. It seems you assume guest will not access this kind of address, but actually guest application can allocate region 0 address spaces by using system call mmap. You can try testcase mmap09 of ltp on both native and xen0 to find out this. So, Can we remove this code segment in vcpu_translate? Thanks, Anthony. _______________________________________________ Xen-ia64-devel mailing list Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-ia64-devel |
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