[Jubi, I'm afraid this is the second copy of this you'll see, because you accidentally sent your reply to linaro-toolchain-request rather than to the actual mailing list, and so my first reply was misdirected. This reply is to the correct list address...]
On 22 November 2011 13:28, Jubi Taneja <jubitan...@gmail.com> wrote: > Thanks for your reply. Please find the response inline .. > On Tue, Nov 22, 2011 at 6:44 PM, Peter Maydell <peter.mayd...@linaro.org> > wrote: >> On 22 November 2011 13:06, Jubi Taneja <jubitan...@gmail.com> wrote: >> > But if i enable the LPAE support in the config file, the kernel builds >> > and >> > when I boot the kernel image on QEMU, it just prints the output as : >> > >> > Uncompressing Linux... done, booting the kernel. >> >> Does your kernel boot OK on real hardware? >> >> (ie, is a kernel with LPAE support expected to boot on a CPU like the >> A9 which doesn't have LPAE?) > > Yes, it is expected to boot ARM Cortex A15 CPU. The A9 and the A15 are different CPUs. QEMU currently supports only the A9. This is why I asked if this kernel boots OK on real Versatile Express A9 hardware. >> Also if your config/kernel command line don't turn on earlyprintk it's >> worth enabling this as it usually gets you better diagnostic messages >> for early kernel boot failures. > > Ok, I will try to check this. But, unfortunately now I again tried enabling > LPAE in config file and the current status is that when I boot the kernel > image on Qemu. it simply hangs. It now don't show that message of > Uncompressing kernel.. I am trying to debug it using gdb, but could not find > much. Please guide me how shall I proceed ahead. If you've turned on kernel support for the Versatile Express A15 rather than the Versatile Express A9 then this is expected behaviour: the VE-A15 has a different memory layout and in particular the serial ports are in a different place. So if you try to boot the kernel on a VE-A9 system (which is what QEMU is modelling) then it will display nothing because the kernel is trying to write to UARTs which aren't there. What are you actually trying to achieve here? -- PMM _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
