Jamie Lokier wrote: > Alexander Graf wrote: > >> Am 18.12.2009 um 03:39 schrieb Jun Koi <junkoi2...@gmail.com> >> >> >>> On Fri, Dec 18, 2009 at 11:37 AM, Jun Koi <junkoi2...@gmail.com> >>> wrote: >>> >>>> Hi, >>>> >>>> I am running latest Qemu 0.12-rc. My guest VM runs Linux kernel >>>> 2.6.31. >>>> >>>> Because Qemu now supports SVM, I expect to see the SVM flag in >>>> /proc/cpuinfo, but that is not the case. >>>> >>>> So it seems SVM support is not enabled by default configuration?? >>>> >>>> >>> My host and guest are both 32 bit Linux, if that matters. >>> >>> (And this is pure Qemu, without using KVM or KQemu) >>> >> Kqemu actually works with svm emulation. >> >> Have you tried -cpu qemu32,+svm? I think I only enabled svm on qemu64, >> because I'm not aware of 32-bit AMD CPUs that can do svm. >> > > 32-bit VT (Intel) definitely exists. > > If there aren't any 32-bit AMDs with SVM, does SVM even have defined > 32-bit semantics? >
Yes, it does. > But I see the kvm kernel code can build 32-bit SVM support. I wonder > if it has ever been tested :-) > Well, just because all SVM capable CPUs are long mode capable doesn't mean you have to run an x86_64 kernel on them. >> Also, back when I developed it, 32-bit kvm didn't really work >> properly. So please let me know what you find out! >> > > Do you mean 32-bit kvm on a 32-bit host, or 32-bit kvm inside your SVM > emulation? kvm works very well on 32-bit Intel hosts. > 32-bit kvm inside my SVM emulation. Alex
