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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 3/7] xen/arm: Initialize correctly IRQ routing
On 09/09/2013 02:17 PM, Ian Campbell wrote: > On Fri, 2013-08-30 at 14:30 +0100, Julien Grall wrote: >> When Xen initialize the GIC distributor, we need to route all the IRQs to >> the boot CPU. The CPU ID can differ between Xen and the GIC. >> >> When ITARGETSR0 is read, each field will return a value that corresponds >> only to the processor reading the register. > > This trick is used a few times in this series, is it really the best way > to figure this out? I forgot to answer to this question. When I wrote this code, I wasn't sure if it's the best way. Linux does the same and the gic documentation doesn't offer a better solution. I saw some device tree with GIC cpu interface node but it's not upstream and disappear from the latest Linaro kernel. -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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