[Qemu-devel] Qemu atags passing in register.

2012-02-06 Thread d...@ucore.info
Hi, I'm doing some tricks with Linux kernel and I'm dependent on bootloader atags passing. On PandaBoard the u-boot is always passing DTF/Atags pointer in r2 register, and I'm kind of depending on it. I need to emulate this behavior by -initrd qemu's argument. However it seems that

Re: [Qemu-devel] Qemu atags passing in register.

2012-02-06 Thread d...@ucore.info
On Mon, Feb 6, 2012 at 5:35 PM, Peter Maydell peter.mayd...@linaro.org wrote: No, qemu will correctly pass the atags in r2 if it is booting a linux kernel (ie if you pass it a non ELF file via the -kernel argument). Otherwise we wouldn't be able to boot Linux. How are you starting qemu ? Well

Re: [Qemu-devel] Qemu atags passing in register.

2012-02-06 Thread d...@ucore.info
On Mon, Feb 6, 2012 at 6:48 PM, d...@ucore.info d...@ucore.info wrote: In the sourcode (current release) I couldn't find any place where any register except PC is being modified. While looking for some data to paste here, I've notice that the pointers should be set by the smallest bootlader

Re: [Qemu-devel] qemu: hardware error: Failed to create USB device 'usb-tablet'

2011-06-30 Thread d...@ucore.info
On Wed, Jun 29, 2011 at 7:25 PM, Peter Maydell peter.mayd...@linaro.org wrote: Unfortunately there isn't a QEMU model of the ISP1761 USB controller which the Versatile Express uses, so that machine model doesn't have USB support. (versatilepb gets USB support via its PCI bus, but there is no

Re: [Qemu-devel] qemu: hardware error: Failed to create USB device 'usb-tablet'

2011-06-30 Thread d...@ucore.info
On Thu, Jun 30, 2011 at 9:56 AM, Peter Maydell peter.mayd...@linaro.org wrote: You're probably thinking of the USB support in the OMAP3 beagle/overo models in qemu-linaro: different chip. I don't have any plans for vexpress USB support, I'm afraid. (We only have limited resources for qemu

Re: [Qemu-devel] qemu: hardware error: Failed to create USB device 'usb-tablet'

2011-06-30 Thread d...@ucore.info
On Thu, Jun 30, 2011 at 10:01 AM, Alexander Graf ag...@suse.de wrote: For relative pointing devices, the guest does something called mouse acceleration where it tries to find out how quickly you're moving the mouse and set the pointer accordingly. Hence the coordinates the guest window

[Qemu-devel] qemu: hardware error: Failed to create USB device 'usb-tablet'

2011-06-29 Thread d...@ucore.info
Hi, I'm trying to get the tablet emulation for Qemu's VNC server to handle the mouse better. I'm using `qemu-system-arm` and everything is OK except for the mouse movement. After I add `-usb -usbdevie table` argument to `qemu-system-arm` invocation I get: qemu: hardware error: Failed to create

Re: [Qemu-devel] qemu: hardware error: Failed to create USB device 'usb-tablet'

2011-06-29 Thread d...@ucore.info
On Wed, Jun 29, 2011 at 4:52 PM, Peter Maydell peter.mayd...@linaro.org wrote: Which machine are you using? The default (integratorcp) does not have a USB controller modelled, so there's nothing to plug the tablet into and QEMU fails with the above slightly cryptic message... Try -M