Re: [Qemu-discuss] Hardware component emulation

2016-07-18 Thread Federico Vaga
On Sunday, 17 July 2016 18:56:25 CEST Peter Maydell wrote: > On 16 July 2016 at 23:38, Federico Vaga wrote: > > I'm super new to qemu and I would like to understand more about the > > hardware components emulation. I surfed for some hours on the internet > > but I cannot find much help. > > By loo

[Qemu-discuss] guest can not find my attached physical disk

2016-07-18 Thread wk
hi: I attach a phyical disk to my qemu guest os successfully.But guest can not find the disk. Please give some advise? Below is my steps(opentest os host os, test1 is guest os) [root@opentest ~]# virsh attach-disk instance-0001 /dev/performance_disk1 vdb --cache none --config

[Qemu-discuss] ASan'ed binaries start up very slow under qemu-aarch64.

2016-07-18 Thread Maxim Ostapenko
Hi! When testing AddressSanitizer tool for AArch64 under qemu-aarch64 (user mode), I found out that even trivial helloworld apps start extremely slow (~2 seconds). I've investigated this a bit and noticed that QEMU actually freezes in large mmaps and subsequent reads of /proc/self/maps. Here

Re: [Qemu-discuss] ASan'ed binaries start up very slow under qemu-aarch64.

2016-07-18 Thread Peter Maydell
(CCing qemu-devel, which is more likely to get developer attention) On 18 July 2016 at 15:45, Maxim Ostapenko wrote: > 1) AddressSanitizer mmaps quite large regions of memory for redzones and > shadow gap. In particular, for 39-bit AS it mmapes: > > || `[0x14, 0x1f]` || HighShadow

[Qemu-discuss] qemu kvm problem

2016-07-18 Thread Yuxin Ren
Hi all, When I start qemu, I got such error message ''' Could not access KVM kernel module: No such file or directory failed to initialize KVM: No such file or directory Back to tcg accelerator. ''' Does anyone know how to solve this problem? Thanks a lot!! Yuxin

Re: [Qemu-discuss] [problem] QEMU-GA & Windows 10

2016-07-18 Thread Frank Sfalanga Jr .
Hi Dominique, Just returned from my trip. Thank you for your patience. As requested, here is a copy of the XML for this VM on the host: Windows10 b69f4f7e-84db-faf5-0f93-9b14babdba78 12617728 12617728 4 hvm Haswell Intel

Re: [Qemu-discuss] qemu kvm problem

2016-07-18 Thread Joshua Cannell
Sounds to me like you're missing the kernel module? What is the output of: ls -l /dev/kvm If you don't see anything or it throws an error, then you're missing the kernel module. On Mon, Jul 18, 2016 at 11:36 AM, Yuxin Ren wrote: > Hi all, > > When I start qemu, I got such error message > > ''

Re: [Qemu-discuss] qemu kvm problem

2016-07-18 Thread Yuxin Ren
Thank you for your reply. the output is ls: cannot access /dev/kvm: No such file or directory How can I solve this problem? Thank you again Yuxin On Mon, Jul 18, 2016 at 4:06 PM, Joshua Cannell wrote: > Sounds to me like you're missing the kernel module? > > What is the output of: > > ls -l /d

Re: [Qemu-discuss] qemu kvm problem

2016-07-18 Thread Fam Zheng
On Mon, 07/18 16:36, Yuxin Ren wrote: > Thank you for your reply. > > the output is > ls: cannot access /dev/kvm: No such file or directory > > How can I solve this problem? modprobe kvm_intel (or kvm_amd depending on your CPU type). Fam