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ゆるふわ入門編

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1. ͍͢͝Bareflankָ͠ ֶ͘΅͏ʂ @Dentoo.LT #21 @morimolymoly
2. ͜Μʹͪ͸
3. ࢲ morimolymoly a.k.a. ήΩΧϫͶ͜ΈΈϝΠυ řŐŕŲƄ:morimolymoly.com ࡟আ ීஈ΍ͬͯΔ͜ͱ • ৘ใηΩϡϦςΟ • Hypervisor • Twitter • ΞΠΧπ@੢10߸ؗΞΠΧπࢹௌεϖʔε ࣮͸MMA෦һͳΜͰ͢Ͷʙʙʙʙ
4. ࡟আ
5. ͯ͞ɼ
6. ΋͘͡ • Hypervisorͱ͸ʁ • Bareflankͬͯͳʹ • Ͱ͖Δ͜ͱ • ͭΒ͍͜ͱ • ৄղ Bareflank’s ϏϧυγεςϜ(͕࣌ؒ͋Ε͹ -> ͳͦ͞ ͏ͳͷͰϒϩάͰॻ͘)
7. ΏΔ;Θʹೖ໳͍ͯ͠ ͖·͢
8. Let’s get started!
9. Hypervisorͱ͸ Ծ૝ϚγϯΛ؅ཧ͢ΔͨΊͷγεςϜ Type1 - Baremetal Type2 - Host ϋʔυ΢ΣΞ Hypervisor VM VM VM ϋʔυ΢ΣΞ Hypervisor VM VM VM ήετOS • Xen • KVM • Hyper-V • Bitvisor • VirtualBox • Qemu • Bochs
10. Is Կ •Hypervisor։ൃϑϨʔϜϫʔΫ •Type-1,2͕ͭ͘ΕΔʂ •LinuxɼWIndowsɼUEFIʹରԠ •x86-64ରԠ •ถۭ܉ݚڀॴൃͷελʔτΞοϓ͕։ൃ •ϕΞϝλϧͳͷʹC++Ͱ͔͚Δʂ •΋ͱ΋ͱͷ࣮૷͕͘͢͝ബ͍(࣮૷͕೺Ѳ͠΍͍͢) •։ൃָ͕ʂ(։ൃָ͕ͱ͸ݴ͍ͬͯͳ͍)
11. ͦ͢͝͏(খฒײ)
12. ͏Ε͍͜͠ͱ • ࣮૷͕ബ͍ͷͰίʔυϦʔσΟϯά͸ָ • Ծ૝Խؔ܎ͷߏ଄ମ͕·ͱ·ͬͯͯΑ͖ • ϏϧυγεςϜ͕CMakeͰ૊·Ε͍ͯͯΏΔ;Θ • ϞμϯͳC++Ͱॻ͚Δͷ͸͏Ε͍͠ͱࢥ͏ • STL͕͔ͭ͑Δ • gitterͰ࣭໰͢Δͱ։ൃऀ͕΍͘͞͠ڭ͑ͯ͘ΕΔ •
13. ͭΒ͍͜ͱ • ബ͍ϑϨʔϜϫʔΫ -> ࣗ෼Ͱ༻ҙ͠Ζ • υΩϡϝϯτ͕ແ(͋Δ͚Ͳݹ͍) -> ςετίʔυ͋Δ͍͍͠΍? -> ίϯτϦϏϡʔγϣϯͷ νϟϯε? ଞͷHypervisor(Xen, Bitvisor)ͷιʔεͱIntel SDMΛಡΊʂ͆
14. Αͦ͞͏จݙ • ʰϋΠύʔόΠβͷ࡞Γํʱhttp://syuu1228.github.io/howto_implement_hypervisor/ • ʰHypervisor From Scratchʱhttps://rayanfam.com/topics/hypervisor-from-scratch- part-1/ • Intel SDM • Bitvisorͷιʔε - thin hypervisorͷྲّྀ͕Θ͔Δ(PassThrough Driverͱ͔) ΍Γ͍ͨ͜ͱʹΑͬͯಡΉจݙ͸͋Γ͑Μଟ͘ͳΔ
15. ۩ମతͳ֦ுํ๏͸ʁ • vcpuΫϥε(VMͷίΞ෦෼)Λܧঝͨ͠ΫϥεΛ࡞੒͢Δ͚ͩ
16. ;Μ͍͖
17. ྫ ࢀߟ: http://github.com/Tr4pMafia • syscall -MSR-IA32-LSTARͷվ͟ΜʹΑΔsyscall໋ྩͷtrap • Int3 - INT3ͷtrap • starter_kit - ௒γϯϓϧͳ֦ு ࠓ͸ύεεϧʔυϥΠόͷ࣮૷ͱ͔Λ;͘Ή͍͍ײ͡ͷHypervisorΛ։ൃ͍ͯ͠Δ
18. ͓ΘΓ