[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH RFC 0/N] xen: arm: rework early bring up
On 09/17/2013 02:37 AM, Ian Campbell wrote: > Hi, > > The following reworks early bring up on ARM to use a separate set of > boot pagetables. This simplifies things by avoiding the need to bring up > all CPUs in lock step, which in turn allows us to do secondary CPU > bringup in C code. > > Unfortunately the main bulk of this change is a single large patch which > is hard to decompose any further since it is basically pulling on the > thread and then knitting a new jumper from it. > > With these changes Xen now absolutely requires that the bootloader calls > the hypervisor in HYP mode, the previous workarounds have been removed. > For use on models a bootwrapper is now required. See > git://xenbits.xen.org/people/ianc/boot-wrapper.git xen-arm32 > git://xenbits.xen.org/people/ianc/boot-wrapper-aarch64.git xen-arm64 > > I have implemented support for CPU bringup on the fastmodel vexpress > platforms (v7and v8) here, I suppose it should work OK on a real > vexpress too but I've not tried it. I have just tried the patch series on the versatile express and it doesn't work. I'm using the u-boot from Andre and all the cpus already boot in hyp mode (checked without this patch series). Xen log here: http://pastebin.com/eJ21dqRm Andre, do you know if we need a specific kick cpus for the versatile express and your hyp mode patch series? -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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