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diff --git a/doc/build/pcie_passthrough.aux b/doc/build/pcie_passthrough.aux
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diff --git a/doc/build/pcie_passthrough.log b/doc/build/pcie_passthrough.log
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+\EU1/lmtt/m/n/10 Per evitare che Debian utilizzi la GPU all’avvio si deve modif
+icare le impostazioni dell’initramfs
+ []
+
+[3]
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+[]\EU1/lmtt/m/n/10 Con questo script possiamo collegare il driver per la virtua
+lizzazione a qualsiasi dispositivo
+ []
+
+
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+[]\EU1/lmtt/m/n/10 Nel mio caso gli indirizzi da passare alla VM sono `0000:02:
+00.0' per il video e `0000:02:00.1'
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+\BOOKMARK [1][-]{section.1}{Introduzione}{}% 1
+\BOOKMARK [1][-]{section.2}{Limitazioni}{}% 2
+\BOOKMARK [1][-]{section.3}{Funzionamento\040\(In\040grandi\040linee\)}{}% 3
+\BOOKMARK [1][-]{section.4}{Hardware\040Requirements}{}% 4
+\BOOKMARK [1][-]{section.5}{Software\040Requirements}{}% 5
+\BOOKMARK [1][-]{section.6}{Hardware\040utilizzato}{}% 6
+\BOOKMARK [1][-]{section.7}{BIOS\040Settings}{}% 7
+\BOOKMARK [1][-]{section.8}{Sistema\040Operativo}{}% 8
+\BOOKMARK [1][-]{section.9}{Kernel\040Modules\040and\040GRUB}{}% 9
+\BOOKMARK [1][-]{section.10}{GPU\040Settings}{}% 10
+\BOOKMARK [1][-]{section.11}{Driver\040binding}{}% 11
diff --git a/doc/build/pcie_passthrough.pdf b/doc/build/pcie_passthrough.pdf
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diff --git a/doc/pcie_passthrough.tex b/doc/pcie_passthrough.tex
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+\documentclass[a4paper,10pt]{article}
+
+\usepackage[outer=2cm,inner=2cm]{geometry}
+\usepackage[hidelinks]{hyperref}
+\usepackage{framed}
+\usepackage{lmodern}
+
+\usepackage{fontspec}
+\usepackage{ragged2e}
+\setmainfont{Latin Modern Mono}
+
+\title{PCIe GPU passthrough on Debian}
+\author{Nao Pross}
+
+\begin{document}\tt
+    \maketitle
+    
+    \section{Introduzione}
+    Recentemente grazie all'evoluzione delle tecnologie di virtualizzazione \`e
+    diventato possibile passare direttamente un dispositivo collegato in uno
+    slot PCI ad una macchina virtuale, che può quindi usufruire dell'hardware a
+    performance quasi nativa. Un computer configurato per funzionare in tale
+    maniera apparirà come se fossero due computer distinti con due monitors (o
+    ad uno con un kvm switch). Il vantaggio di un setup del genere è la
+    possibilità di cambiare immediatamente da un sistema operativo all’altro
+    senza dover attendere che ma macchina si riavvii (in un dualboot) e si
+    evitano potenziali problemi come Windows Update che rendono il PC inusabile.
+    
+    \section{Limitazioni}
+    Come ogni sistema si ha delle limitazioni quali
+    \begin{itemize}
+        \item Per poter vedere l'uscita video della VM si deve collegare un
+            display ad una delle uscite della scheda grafica passata
+        \item Non \`e possibile passare la iGPU ad una VM (\`e possibile ma con
+            altre tecnologie ancora sperimentali)
+        \item Non \`e possibile passare una GPU discreta di un laptop (es NVIDIA
+            Optimus) poich\`e non \`e possibile visualizzare il video in uscita
+    \end{itemize}
+    
+    \section{Funzionamento (In grandi linee)}
+    Le macchine virtuali vengono emulate grazie ad un software chiamato QEMU che
+    supporta il passaggio di hardware PCI alla VM, inoltre QEMU utilizza un
+    estensione chiamata KVM che permette di creare delle macchine virtuali
+    collegate alla kernel dunque ottimizzate. Altrimenti QEMU dovrebbe emulare
+    l’intero processore su cui viene virtualizzato il sistema operativo. Infine
+    per gestire questi due componenti LibVirt è un software che salva le
+    configurazioni di QEMU in dei file XML e che permette alle VM di essere
+    tenute accese in background. \\
+    
+    Passando una scheda video in PCI ad una macchina virtuale permette di
+    utilizzare la potenza grafica hardware che sarebbe altrimenti emulata (le
+    grafichce virtuali di QEMU non sono per niente ottimizzate, per tali scopi è
+    meglio utilizzare VirtualBox o VMWare Fusion). Quindi per poter vedere la
+    grafica della macchina virtuale si deve collegare un monitor ad una delle
+    entrate della scheda video.
+    
+    \section{Hardware Requirements}
+    \begin{itemize}
+        \item Intel processor with iGPU (or 2 GPUs)
+        \item Processor with VT-x and VT-d
+        \item NVIDIA or AMD graphics card (2 if with no iGPU)
+        \item Motherboard with VT-d support
+        \item Motherboard with UEFI based bootloader
+        \item Motherboard with IOMMU support (per configurazioni avanzate)
+    \end{itemize}
+    
+    \section{Software Requirements}
+    \begin{itemize}
+        \item Linux Kernel with iommu\_groups support ( kernel >= 3.9 )
+    \end{itemize}
+    
+    \section{Hardware utilizzato}
+    Per questo questo test ho usato una configurazione hardware esagerata, anche
+    con un sistema decisamente meno costoso \`e possibile realizzare il
+    progetto.
+    \begin{itemize}
+        \item ASUS Z170-A motherboard
+        \item Intel Core i7 Skylake 6700 CPU with Intel Graphics 530
+        \item MSI NVIDIA GTX1050Ti OC 4GB
+        \item 32GB DDR4
+    \end{itemize}
+    
+    \section{BIOS Settings}
+    Per incominciare è necessario controllare che nel BIOS siano attivate le
+    tecnologie di virtualizzazione VT-x e VT-d. Inoltre se si vuole utilizzare
+    la iGPU in alcune motherboard (come nel mio caso) si deve modificare un
+    impostazione nel bios per non disattivarla qundo viene inserita una scheda
+    grafica secondaria.
+    
+    \section{Sistema Operativo}
+    Per avere un sistema stabile consiglio di utilizzare Debian Linux poiché
+    essendo utilizzato soprattuto nei servers il ciclo di testing e updates è
+    molto lento in modo da avere sempre un supporto legacy e un sistema stabile.
+    Purtroppo però attualmente (12.2016) Debian 8 Jessie ha ancora la kernel
+    3.16 quindi si deve abilitare il supporto backport per poter installare una
+    versione aggiornata della kernel. \\
+    
+    Prima di installare il sistema operativo è consigliato rimuovere la GPU che
+    si utilizzerà per il passthrough dallo slot PCI per evitare che Linux si
+    autoconfiguri per utilizzare i suoi driver grafici. Una volta installato il
+    sistema si devono installare i seguenti pacchetti:
+    \begin{framed}\raggedright
+        \% sudo apt-get install \textbackslash \\
+        ~ qemu-kvm libvirt-bin virtinst bridge-utils virt-manager ssh-askpass ovmf
+    \end{framed}
+    
+    \section{Kernel Modules and GRUB}
+    Normalmente Debian viene con GRUB2 preinstallato come bootloader, se si
+    dovesse avere un altro bootloader si deve semplicemente passare gli stessi
+    parametri alla kernel quando si avvia. \\
+    
+    Dalla kernel 3.9 Linux ha introdotto gli iommu\_groups che permettono di
+    mappare dispositivi di memoria reale ad indirizzi virtuali che possono
+    essere a loro volta passati alla VM. Per poter utilizzare questa
+    funzionalit\`a la si deve abilitare inoltre \`e necessario anche il supporto
+    degli ACS per poter suddividere i sottocomponenti del gruppo iommu (per
+    esempio le porte individuali di un estensione di USB via PCI). Per attivare
+    le funzionalit\`a si deve passare alla kernel i seguenti parametri:
+    \begin{framed}\raggedright \footnotesize
+        \# file: /etc/default/grub \\
+        ... \\
+        GRUB\_DEFAULT\_CMDLINE\_LINUX\_DEFAULT="intel\_iommu=on iommu=1 pcie\_acs\_override=downstream" \\
+        ...
+    \end{framed}
+    Per aggiornale le impostazioni installate
+    \begin{framed}\raggedright
+        \% sudo update-grub
+    \end{framed}
+    
+    \section{GPU Settings}
+    Per evitare che Debian utilizzi la GPU all’avvio si deve modificare le
+    impostazioni dell’initramfs in maniera tale che il modulo della kernel non
+    venga avviato. Per sapere il nome del modulo della kernel caricato per la
+    GPU si può usare il seguente comando (nel mio caso la scheda è una NVIDIA):
+    \begin{framed}\raggedright \scriptsize
+        \% lspci -nnk | grep -i -A2 nvidia \\
+        02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1) \\
+        ~~~~~~~~Subsystem: Micro-Star International Co., Ltd. [MSI] GP107 [GeForce GTX 1050 Ti] [1462:8c96] \\
+        ~~~~~~~~Kernel driver in use: nouveau \\
+        -- \\
+        02:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fb9] (rev a1) \\
+        ~~~~~~~~Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:8c96] \\
+        ~~~~~~~~Kernel driver in use: snd\_hda\_intel
+    \end{framed}
+    Nel file di configurazione
+    \begin{framed}\raggedright
+        \# file: /etc/modprobe.d/blacklist.conf \\
+        ... \\
+        blacklist nouveau
+    \end{framed}
+    Infine per aggiornare la configurazione
+    \begin{framed}\raggedright
+        \% sudo update-initramfs -u
+    \end{framed}
+    
+    \section{Driver binding}
+    Per passare un dispositivo ad una VM si deve indicare alla kernel di
+    utilizzare il modulo `vfio-pci', perci\`o \`e necessario inizializzare
+    questi dispositivi all'avvio. Per questo possiamo usare questo script preso
+    da \href{https://www.reddit.com/r/pcmasterrace/comments/3lno0t/gpu_passthrough_revisited_an_updated_guide_on_how/?ref=share&ref_source=link}{qui}
+    salvandolo come `/usr/local/bin/vfio-bind'.
+    \begin{framed}\raggedright
+        \# file: /usr/local/bin/vfio-bind
+        \begin{verbatim}
+#!/bin/bash
+
+modprobe vfio-pci
+
+for dev in "$@"; do
+        vendor=$(cat /sys/bus/pci/devices/$dev/vendor)
+        device=$(cat /sys/bus/pci/devices/$dev/device)
+        if [ -e /sys/bus/pci/devices/$dev/driver ]; then
+                echo $dev > /sys/bus/pci/devices/$dev/driver/unbind
+        fi
+        echo $vendor $device > /sys/bus/pci/drivers/vfio-pci/new_id
+done \end{verbatim}
+    \end{framed}
+    Attivando la flag per poterlo eseguire:
+    \begin{framed}\raggedright
+        \% sudo chmod +x /usr/local/bin/vfio-bind
+    \end{framed}
+    Con questo script possiamo collegare il driver per la virtualizzazione a
+    qualsiasi dispositivo PCI nella seguente maniera:
+    \begin{framed}\raggedright
+        \% sudo vfio-bind <indirizzi pci>
+    \end{framed}
+    Per trovare l'indizirro dei dispositivi che vogliamo passare utilizziamo di
+    nuovo il seguente comando:
+    \begin{framed}\raggedright \scriptsize
+        \% lspci -nnk | grep -i -A2 nvidia \\
+        02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1) \\
+        ~~~~~~~~Subsystem: Micro-Star International Co., Ltd. [MSI] GP107 [GeForce GTX 1050 Ti] [1462:8c96] \\
+        ~~~~~~~~Kernel driver in use: nouveau \\
+        -- \\
+        02:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fb9] (rev a1) \\
+        ~~~~~~~~Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:8c96] \\
+        ~~~~~~~~Kernel driver in use: snd\_hda\_intel
+    \end{framed}
+    Nel mio caso gli indirizzi da passare alla VM sono `0000:02:00.0' per il
+    video e `0000:02:00.1' per l'audio.  Successivamente possiamo automatizzare
+    la configurazione in modo che il driver per la virtualizzazione venga
+    avviato subito all'avvio della macchina. Quindi lo facciamo con una unit di
+    SystemD.
+    \begin{framed}\raggedright
+        \# file: /etc/systemd/system/vfio-pci-bind.service
+        
+        \begin{verbatim}
+[Unit]
+Description=Bind PCI devices to the virtio driver
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/vfio-bind 0000:02:00.0 0000:02:00.1
+
+[Install]
+WantedBy=multi-user.target
+Before=libvirt-guests.service \end{verbatim}
+    \end{framed}
+
+    \section*{Appendici}
+    \subsection*{i915 Skylake iGPU support} \label{skylakeigpu}
+    Attualmente (12.2016) i driver grafici per i nuovi processori intel di
+    architettura skylake sono disponibili e relativamente stabili dalle kernel
+    4.7+, quindi nella mia installazione di debian ho deciso di utilizzare il
+    backport della kernel 4.8.0. Per abilitare i backports si deve aggiungere 
+    un nuovo repo nel file `/etc/apt/sources.list'.
+    \begin{framed}\raggedright
+        \# file: /etc/apt/sources.list \\
+        deb http://ftp.debian.org/debian jessie-backports main non-free
+    \end{framed}
+    Successivamente si deve aggiornare la kernel e i driver grafici mesa 
+
+\end{document}
diff --git a/doc/sources/links.txt b/doc/sources/links.txt
new file mode 100644
index 0000000..bd1e48f
--- /dev/null
+++ b/doc/sources/links.txt
@@ -0,0 +1,33 @@
+i915 skylake driver fix (see thread)
+http://forums.debian.net/viewtopic.php?f=6&t=125136&start=45
+
+Debian tutorial
+https://www.reddit.com/r/linuxmasterrace/comments/3qk9ee/my_notes_on_kvmqemu_vgapassthrough_on_debian/
+
+Arch tutorial
+https://www.reddit.com/r/pcmasterrace/comments/2z0evz/gpu_passthrough_or_how_to_play_any_game_at_near/
+https://www.reddit.com/r/pcmasterrace/comments/3lno0t/gpu_passthrough_revisited_an_updated_guide_on_how/
+
+ACS
+https://lkml.org/lkml/2013/6/18/582
+https://lime-technology.com/forum/index.php?topic=48010.0
+https://github.com/zman0900/linux-vfio-aur
+
+IOMMU
+https://en.wikipedia.org/wiki/Input%E2%80%93output_memory_management_unit
+https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-iommu-deep-dive.html
+
+Intel passthrough (?!?)
+https://www.reddit.com/r/linux_gaming/comments/3ez95g/does_vtd_gpu_passthrough_work_for_intel/
+
+Windows 7 installer stuff
+https://lime-technology.com/forum/index.php?topic=41652.0
+
+Windows NVIDIA drivers fix
+https://lime-technology.com/forum/index.php?topic=38664.0
+
+Windows Audio Fix
+
+http://forums.guru3d.com/showthread.php?t=378044
+http://vfio.blogspot.ch/2014/09/vfio-interrupts-and-how-to-coax-windows.html?m=1
+https://www.reddit.com/r/linux/comments/3z3g87/help_audio_problems_after_pci_passthrough_with_kvm/
diff --git a/doc/sources/pcie_passthrough.odt b/doc/sources/pcie_passthrough.odt
new file mode 100644
index 0000000..4d1b241
--- /dev/null
+++ b/doc/sources/pcie_passthrough.odt