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...an event channel. Now during this VM exit , is the guest OS blocked ? Specifically, what about VGA writes are they blocked too during a VM exit ? The following link explains that to speed up performance a shared memory area was built between qemu and the hvm guest . http://www.intel.com/technology/itj/2006/v10i3/3-xen/5-performance-tuning-vt-x.htm But I am unable to understand as to whether is this shared memory area is still accessible by the guest vga when a VM exit has taken place due to another I/O event like a mouse click? Would appreciate if you could answer my queries. Thanks Sujata __...

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Hello all, please tell me, how can I be sure that my Xen installation is built with Intel VT-d support? Something like xm info | grep -i KEY-REGULAR-EXPRESSION xm dmesg | grep -i KEY-REGULAR-EXPRESSION What line I should look for? And if it''s really built with it, how can I be sure, that Xen has successfully initialized VT-d hardware? I have read [1] and the lists archives

...0000000000000000..bd99c71acb11fb0308d26760110e66d470317cc8 GIT binary patch literal 429 zcmV;e0aE^nP)<h;3K|Lk000e1NJLTq000XB000XJ1^@s6sjPP<0000PbVXQnQ*UN; zcVTj606}DLVr3vnZDD6+Qe|Oed2z{QJOBUzPf0{URCwB4Q9WzIP!zpStpyhyoW(j6 z)5W>P2<8W<jazU{aCPq7rTqg5u7z%bQ^i3M`v*G3+5b=~B=6pyr%fxpaNfx~?{ITJ zl!%at at p#+ at xqt&$Kn$#aSr~@z#*;IL?*}8zda5-~G;?b>bc+mzHi0$`e1Bwo`Tc(1 z7U5 at MX@W_Zsn_e#X0yS!n0u8)Zszm(M=niMH%Zebm@<?~C4xq^T8;YsKD5NVyM-i4 z9QqfPN`>wR19BXPJkO(Yxol*|n5{pX0_2$4wrvW6;O8$1DIv?4W6Yza&N45TONye1 zz77YvC=@a|&Nmv3Yjl1KP=>d~f|OE}Lk8Br`fL8GUjM|n?$CMFh!_`L7K>!&a...