Ubuntuã§KVM
以下ã¯ï¼Œä»®æƒ³ãƒžã‚·ãƒ³åkvm101ã®ã‚¤ãƒ¡ãƒ¼ã‚¸ã‚’ディレクトリ ~/vm/kvm101 ä¸ã«ä½œæˆã™ã‚‹ä¾‹ã§ã™ï¼Ž ユーザID，ユーザå，パスワードã¯é©å®œå¤‰æ›´ã—ã¦ãã ã•ã„． $ mkdir ~/vm $ cd ~/vm $ sudo ubuntu-vm-builder kvm hardy --suite hardy --arch i386 \ --mem 2047 \ --dest kvm101 \ --libvirt qemu:///system \ --mirror http://192.168.122.1:9999/ubuntu \ --part vmbuilder.partition \ --host kvm101 \ --ip 192.168.122.101 \ --user tamura \ --name 'Naoyuki Tamura' \ --pass 'password' \ --a
ioeventfd & irqfd - KVM日記
2.6.32ã§ãƒžãƒ¼ã‚¸ã•ã‚ŒãŸ*1KVMã®æ–°æ©Ÿèƒ½ioeventfdã¨irqfdã«ã¤ã„ã¦èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ eventfd ã©ã¡ã‚‰ã‚‚eventfd(2)を利用ã—ã¦ã„ã‚‹ã®ã§ã€ã¾ãšã¯ãã®æ¦‚ç•¥ã‹ã‚‰ã€‚ eventfdã¯2.6.22ã‹ã‚‰åˆ©ç”¨å¯èƒ½ãªãƒ¦ãƒ¼ã‚¶ãƒ—ãƒã‚»ã‚¹é–“ã‚‚ã—ãã¯ãƒ¦ãƒ¼ã‚¶ãƒ»ã‚«ãƒ¼ãƒãƒ«é–“ã®ã‚¤ãƒ™ãƒ³ãƒˆé€šçŸ¥å°‚用ã®ã‚·ã‚¹ãƒ†ãƒ コールã§ã™ã€‚eventfdã¯eventfdオブジェクトã¨å‘¼ã°ã‚Œã‚‹ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã‚’è¿”ã—ã¾ã™ã€‚利用者ã¯ã“ã®ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—ã‚¿ã«å¯¾ã—ã¦read/write/select/pollãªã©ã‚’ã™ã‚‹ã“ã¨ã§ã‚¤ãƒ™ãƒ³ãƒˆã®é€šçŸ¥ã‚„å—ã‘å–ã‚Šã‚’è¡Œãªã„ã¾ã™ã€‚ã“ã®ç¨®ã®ãƒ‡ã‚£ã‚¹ã‚¯ãƒªãƒ—タを介ã—ãŸã‚¤ãƒ™ãƒ³ãƒˆé€šçŸ¥ã¯pipeã‚„socketã§ã‚‚å¯èƒ½ã§ã™ãŒã€ç‰¹åŒ–ã—ã¦ã„る分eventfdã®æ–¹ãŒç°¡æ½”ã«æ›¸ã‘ã¦è»½é‡ã§ã™ã€‚ åŒç¨®ã®ã‚·ã‚¹ãƒ†ãƒ コールã«signalfdã‚„timerfdãªã©ãŒã‚ã‚Šã€å„種ディスクリプタã¨ã¾ã¨ã‚ã¦select/pollã™ã‚‹ã“ã¨ãŒã§ãã¦ä¾¿åˆ©ã§ã™
ãƒã‚°ã‚¤ãƒ³ - ã¯ã¦ãª
パスワードを忘れãŸæ–¹ã¯ãƒ‘スワードã®å†è¨å®šã‚’è¡Œã£ã¦ãã ã•ã„。 ã†ã¾ããƒã‚°ã‚¤ãƒ³ã§ããªã„æ–¹ã¯ãŠå•ã„åˆã‚ã›ã‚’ã”覧ã„ãŸã ãã€Cookieã®è¨å®šã‚’ã”確èªãã ã•ã„。
Node crashing handling and VM statistics | ioremap.net | Page 370
In a meantime elliptics network got a little bit harden node crash management – all transactions which were not sent prior node crash will be resent to another nodes according to the changed routing table. This was only slightly tested though, since real-life examples are a bit hard to catch. I will write a test script, which will write to the node which will forward all requests to another one, a
Sheepdog Project
Overview Sheepdog is a distributed storage system for KVM. It provides highly available block level storage volumes that can be attached to KVM virtual machines. Sheepdog supports advanced volume management features such as snapshot, cloning, and thin provisioning. sheep is a disk I/O management process, dog is a cluster management process, and KVM is patched virtual machine monitor
ãƒã‚°ã‚¤ãƒ³ - ã¯ã¦ãª
パスワードを忘れãŸæ–¹ã¯ãƒ‘スワードã®å†è¨å®šã‚’è¡Œã£ã¦ãã ã•ã„。 ã†ã¾ããƒã‚°ã‚¤ãƒ³ã§ããªã„æ–¹ã¯ãŠå•ã„åˆã‚ã›ã‚’ã”覧ã„ãŸã ãã€Cookieã®è¨å®šã‚’ã”確èªãã ã•ã„。
shadow pagingã¨kvmã«ãŠã‘る実装ã«ã¤ã„ã¦ã€€VA Linux Systems Japan
本書ã¯ã€Linux KVMã®shadow pagingã®å®Ÿè£…ã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚èªè€…ã®å‰ææ¡ä»¶ã¨ã—ã¦ã€ä»®æƒ³åŒ–åŠã³x86アーã‚テクãƒãƒ£ã«ãŠã‘るアドレス変æ›æ©Ÿæ§‹ï¼ˆMMU）ã«é–¢ã™ã‚‹åŸºç¤ŽçŸ¥è˜ã‚’有ã—ã¦ã„る方を対象ã¨ã—ã¦ãŠã‚Šã¾ã™ã®ã§ã€ã‚らã‹ã˜ã‚ã”了承ãã ã•ã„。 KVMã¯ç±³å›½Qumranet社ã«ã‚ˆã‚Šé–‹ç™ºã•ã‚Œã¦ã„る仮想マシンã§ã€å®Œå…¨ä»®æƒ³åŒ–をサãƒãƒ¼ãƒˆã—ã¾ã™ã€‚当åˆã¯ä»®æƒ³åŒ–拡張機能（Intel VT-x〠AMD SVM）をもã¤x86アーã‚テクãƒãƒ£ã‚’対象ã«é–‹ç™ºã•ã‚Œã¦ãã¾ã—ãŸãŒã€ç¾åœ¨ã§ã¯ãã®ä»–ã®CPUアーã‚テクãƒãƒ£ã«ã‚‚移æ¤ã•ã‚Œã¦ã„ã¾ã™ã€‚本書内ã§ã¯ç‰¹ã«è¨˜è¼‰ãŒã‚る部分を除ãã€x86アーã‚テクãƒãƒ£ã®ã¿ã‚’対象ã¨ã„ãŸã—ã¾ã™ã€‚ 実装ã®ç‰¹å¾´ã¨ã—ã¦ã¯æ¬¡ã®ã‚ˆã†ãªã‚‚ã®ãŒæŒ™ã’られã¾ã™ã€‚
Memory management notifiers [LWN.net]
Virtualized guests running under Linux like to think that they are doing their own memory management. The truth of the matter, though, is that the host system cannot allow guests to directly modify the page tables used by the hardware; allowing that sort of access would compromise the security of the host. So, somehow, the host must be involved in the guest's memory management. One common techniqu
第66回　「Ubuntuらã—ãã€ä»®æƒ³ãƒžã‚·ãƒ³ã‚’使ã†ï¼ˆ2）：ubuntu-vm-builderをターミナルã§å‹•ã‹ã™ | gihyo.jp
Ubuntu Weekly Recipe 第66回「Ubuntuらã—ãã€ä»®æƒ³ãƒžã‚·ãƒ³ã‚’使ã†ï¼ˆ2）：ubuntu-vm-builderをターミナルã§å‹•ã‹ã™ 今回ã¯61回ã§ç´¹ä»‹ã—ãŸubuntu-vm-builderã§æ§‹æˆã—ãŸä»®æƒ³ãƒžã‚·ãƒ³ã‚’ã€ã€Œâ ターミナル内ã§ã€å‹•ä½œã•ã›ã‚‹æ–¹æ³•ã‚’紹介ã—ã¾ã™ã€‚ サーãƒãƒ¼ã«ãŠã‘るビデオカードã®å¿…然性（仮想マシンã«é™ã‚‰ãªã„話） 仮想マシンを「ターミナルã§ã€å‹•ä½œã•ã›ã‚‹å‰ã«ã€å°‘ã—ã ã‘「ビデオカードã®å˜åœ¨ã—ãªã„マシンã€ã®è©±ã«ã¤ã„ã¦è§¦ã‚Œã¦ã¿ã¾ã—ょã†ã€‚ 一般的ãªPCã®åˆ©ç”¨å½¢æ…‹ã§ã¯ã€ãƒ“デオカード（もã—ãã¯ãƒŽãƒ¼ã‚¹ãƒ–リッジç‰ã«å†…蔵ã•ã‚ŒãŸãƒ“デオãƒãƒƒãƒ—機能）ã®å˜åœ¨ã¯æ¬ ã‹ã›ã¾ã›ã‚“。モニタã«ç”»é¢ã‚’表示ã™ã‚‹ãŸã‚ã«ã¯ã“れらã®ãƒãƒƒãƒ—を用ã„ã¦ã‚¢ãƒŠãƒã‚°ã€ãªã„ã—ã¯ãƒ‡ã‚¸ã‚¿ãƒ«ã§å‡ºåŠ›ã™ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ ã—ã‹ã—ã€ã»ã¨ã‚“ã©ã®ã‚µãƒ¼ãƒãƒ¼ã¯ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯è¶Šã—ã«åˆ©ç”¨ã•ã‚Œã‚‹ã‚‚ã®ã§ã™ã—ã€ç®¡ç†è€…ãŒè¡Œã†ã¹ã作æ¥ã®ã»ã¨ã‚“ã©ã‚‚SSH越ã—ã«
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git.kernel.org - linux/kernel/git/rusty/linux-2.6-for-linus.git/commit
kvm/kvm.git - kernel-based virtual machine - kvm
http://git.kernel.org/?p=virt/kvm/kvm-kmod.git;a=summary
unhandled exit 0x80000021
Design
[KVM PATCH 0/2] irqfd enhancements
kvm guest: hrtimer: interrupt too slow
[PATCH v2: kvm 1/4] Code motion. Separate timer intialization into an indepedent function.
[ kvm-Bugs-2826486 ] Clock speed in FreeBSD
[PATCH v2 0/2] Automatically grab wallclock time updates from hypervisor
An Interview With Linus Torvalds: Linux and Git - Part 1 30 Years Of Linux
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