----- Original Message ----- > On 11/19/2014 10:23 AM, Peter Robinson wrote: > >>>>> Just trying the F21 beta (and > >>>>> Fedora-Minimal-armhfp-21-20141117-sda.raw) > >>>>> under > >>>>> qemu. Seems like these versions both require explicitly passing in a > >>>>> dtb > >>>>> to > >>>>> qemu to actually boot. Well, maybe it's booting and I'm just not > >>>>> getting > >>>>> any > >>>>> serial output, can't really tell. > >>>>> > >>>>> Passing a dtb to qemu wasn't required for the F20 GA release at least, > >>>>> and > >>>>> still isn't required with F21 qemu-system-arm, so presumably it's not a > >>>>> qemu > >>>>> regression. > >>> > >>> > >>> Fedora 21 requires the use of a dtb to boot the multiplatform kernel. > >>> This > >>> changed > >>> around the 3.16 RC's (iirc). > >>> > >>>>> > >>>>> Having to pass a dtb is kind of a pain for management tools, it's > >>>>> another > >>>>> file > >>>>> that needs to handled. And the docs say it shouldn't be required: > >>>>> > >>>>> https://fedoraproject.org/wiki/Architectures/ARM/F21/Installation#For_Versatile_Express_Emulation_with_QEMU > >>> > >>> > >>> Thanks, I will adjust the page. > >>> > >> > >> Medium/long term we should consider changing the docs to recommend using > >> qemu-system-arm -M virt, since that's where all the virt improvements are > >> generally going to take place, and it doesn't require an explicit dtb > >> (since > >> it generates ones behind the scene). That will also be the virt machine > >> type > >> used for aarch64, so it will be nice to have parity there. What command should be used? When I add in -M virt and do not include a dtb, I dont get any output on the serial console (a9, a15) using qemu-system-arm-2.1.2-6.fc21.x86_64. Many thanks, Paul > > > > That certainly sounds the best route. Does that allow the use of > > virtio* for storage/network/display etc? > > > > It gives virtio for storage/network automatically, in fact it only supports > virtio. > > virtio display doesn't exist upstream yet. There's work on one but it's a > ways > off AIUI > > Though my understanding is that soon people will be looking at adding some > manner of PCI support to -M virt, which may open the doors for getting > graphics to work. But I'm pretty ignorant WRT the technical details so I'm > not > really sure. > > -M virt also has the best integration for KVM for running on arm hardware, so > provides some parity there as well. > > - Cole > _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
