On 2015/4/15 9:08, Rob Landley wrote: > On Mon, Apr 13, 2015 at 6:29 AM, vt <v...@sangfor.com.cn> wrote: >> Hi, guys >> >> I saw the architecture code about mips in the qemu and kvm modules, so it is >> no doubt that mips cpu can be supported. > > It looks like the 32 bit one should work fine. I haven't played with > 64 bit yet but there's some support for it in the tree, give it a try? > > http://en.wikipedia.org/wiki/Loongson > > Heh. The background on the "4 patented instructions" mentioned above > is mips' lawsuit against Lexra many years ago: > > http://landley.net/notes-2009.html#14-12-2009 > > If you were wondering why mips had a lost decade where most of its > customers switched over to arm, convincing the world you're a patent > troll will do that. But it's been well over a decade and most people > seem to have forgotten now. And china never cared about US > intellectual property infighting anyway... > >> But I wonder if anyone have used qemu/kvm virtualization with China loongson >> processor (MIPS architecture) without modification of qemu/kvm code. >> All the infomation I have searched in the Internet can't answer my question. > > I have a mips r4k system emulation working fine at: > > http://landley.net/aboriginal/bin/system-image-mips.tar.gz > > (That's based off of linux 3.18 I think, I have 3.19 building locally, > 4.0 is on the todo list.) > > I haven't tried 64 bit yet but: > > $ qemu-system-mips64 -cpu ? | grep Loongson > MIPS 'Loongson-2E' > MIPS 'Loongson-2F' > > It's apparently there... > > Rob >
Rob, Thanks for your help. Sangfor VT
