The MASM Forum

Miscellaneous => Hardware & Software Corner => Topic started by: Vortex on November 09, 2012, 06:12:57 AM

Title: Qemu for Windows
Post by: Vortex on November 09, 2012, 06:12:57 AM
Here is the latest version of the popular CPU emulator for Windows users :

http://lassauge.free.fr/qemu/

Title: Re: Qemu for Windows
Post by: sinsi on November 11, 2012, 04:07:20 PM
I generally use bochs for things like OS dev, switching to PM, activating cores, going to long mode.
Does qemu do smp in 64-bit? I thought, way back, that bochs and qemu were the same, with qemu the poor cousin.
Title: Re: Qemu for Windows
Post by: Vortex on November 11, 2012, 08:05:39 PM
QuoteKernel Based Virtual Machine

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko. KVM also requires a modified QEMU although work is underway to get the required changes upstream.

http://www.linux-kvm.org/page/Main_Page

QuoteDoes KVM support SMP hosts?
Yes.

Does KVM support SMP guests?
Yes. Up to 16 CPUs can be specified using the -smp option.

http://www.linux-kvm.org/page/FAQ#Does_KVM_support_SMP_hosts.3F

32 or 64 bit virtual CPU in KVM :

http://rwmj.wordpress.com/2010/10/08/32-or-64-bit-virtual-cpu-in-kvm/


Title: Re: Qemu for Windows
Post by: japheth on November 11, 2012, 09:09:27 PM

KVM is not for Windows, so it's off-topic.

Qemu for Windows was once pretty good, but today it's a neglected branch with lots of problems. Just downloaded the newest version and it still crashes as soon as I press Ctrl-Alt-F to switch to fullscreen mode. Also, the keyboard emulation has become very "slow".

The last usable version of Qemu for Windows was 0.91.
Title: Re: Qemu for Windows
Post by: Vortex on November 11, 2012, 09:16:02 PM
What is good for me is that qemu is portable. You can put a copy of your qemu directory to your USB memory and it will work on another computer. Also, qemu works on Windows PE 1.x environment.
Title: Re: Qemu for Windows
Post by: mitchi on November 12, 2012, 08:02:03 AM
What do you use QEMU for Vortex?
I am curious.
Title: Re: Qemu for Windows
Post by: Vortex on November 12, 2012, 08:29:06 AM
Quote from: mitchi on November 12, 2012, 08:02:03 AM
What do you use QEMU for Vortex?
I am curious.

Feel free to visit the WinBuilder section of the reboot forum and try to figure out the reason :

http://reboot.pro/forum/22/