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> Date: Wed, 15 Aug 2012 16:06:49 +0100 > From: marc.zyngier@xxxxxxx > To: peter.maydell@xxxxxxxxxx > CC: jessica.allison.2012@xxxxxxxxxxx; kvmarm@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: Boot fails with Unexpected/invalid #address-cells/#size-cells in device tree > > On 15/08/12 15:50, Peter Maydell wrote: > > On 15 August 2012 15:45, Jessica Allison > > <jessica.allison.2012@xxxxxxxxxxx> wrote: > >> Yes, when I quickly remove that check in the code, it boots up just fine. > > > > Good (although we should probably do a proper fix and make sure > > we handle 64 bit sizes correctly in the following code). > > > >> Is there already a way to boot up a full graphical user environment on the > >> FastModel simulator with the KVM on ARM kernel? > >> I use > >> http://git.kernel.org/?p=linux/kernel/git/maz/arm-platforms.git;a=summary > >> for my kernel and the system boots fine into a root shell. > >> Is there a kernel driver for the LCD by now, and included in the device > >> tree? > > > > Graphics via the pl11x should work fine, but I don't think anybody has > > actually tested because the effect of stacking KVM on top of the Fast > > Model means it would run pretty slowly. Try getting it running with > > plain QEMU on x86 first, then the same kernel config should behave > > the same on KVM. > > Only the A9 tile code has some support for its private pl111. The new DT > code has no knowledge of the VE baseboard pl111. Not to mention the > HDLCD on TC1/TC2, which doesn't even have a driver. > > As mentioned in an email to Jessica a while ago, this bit is waiting for > a kind soul who'd actually cares about video output to pick it up... When my kernel boots with the rtsm_ve-cortex_a15x2.dts device tree I see the following error which, I assume, is related to the pl111 not working? clcd-pl11x: probe of 1c1f0000.clcd failed with error -22 If I had proper graphics hardware (as opposed to the really slow FastModel simulator), then I would definitely be interested in working on the graphics kernel code. But I don't have that yet... Jess |
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