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...ations where the p2m entry is changed but the mfn is the same, the VTd tables will be unnecessarily flushed. old_entry is left untouched in the second case, since having a present old_entry will cause the an unnecessary check to be taken at the end of the function. Spotted-by: Zhang, Peng Fei <zpfalpc23@gmail.com> Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> diff -r 3caed2112c65 -r 56b32e6fd315 xen/arch/x86/mm/hap/p2m-ept.c --- a/xen/arch/x86/mm/hap/p2m-ept.c Tue Mar 15 10:14:27 2011 +0000 +++ b/xen/arch/x86/mm/hap/p2m-ept.c Tue Mar 15 15:41:17 2011 +0000 @@ -374,7 +374,9 @...

I recently used the Xen virtual machine backup tools, such as ''xm save'' command. And I found that before this tool save the memory and CPU state, it first pauses the VM. Do Xen have same tools for online backup the VMs? If it do not have one, can I saty that Xen don''t support VM online backup? -- View this message in context:

I come across some problem when using xen-4.1.1-rc1-pre from xen-4.1-testing tree and 2.6.32.36xen linux kernel from git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git. when I use ''xend restart'' , it hangs when kernel dmesg printing ''Bridge firewalling registered'' and the console show below messages: localhost# xend restart Nothing to flush. Cannot