Messages in this thread | | | Date | Tue, 13 Feb 2007 15:58:50 -0800 | From | Dan Hecht <> | Subject | Re: [patch 14/21] Xen-paravirt: Add XEN config options and disable unsupported config options. |
| |
On 02/13/2007 03:29 PM, Jeremy Fitzhardinge wrote: > Dan Hecht wrote: >> I assume you plan to eventually get all this stuff working but just >> want to prevent configurations that the Xen paravirt-ops isn't ready >> for at the moment? >> >> Instead can you do it this way: >> >> config XEN >> depends on PARAVIRT && !PREEMPT && HZ_100 && !DOUBLEFAULT && !KEXEC > > That's a bit simpler code-wise, but it does make it pretty complex to > get everything just-so to even see the CONFIG_XEN option. >
Not only is it simpler code-wise, but it is more to the point... it is CONFIG_XEN that needs to be fixed to handle PREEMPT, KEXEC, different HZ values, etc. Not the other way around.
Enabling the compile of any paravirt-ops backend shouldn't cripple the kernel in any way... instead, the burden should be on the xen paravirt-ops backend to be completed. CONFIG_PREEMPT shouldn't care about which paravirt-ops are compiled in. Instead, CONFIG_XEN is the one that needs !PREEMPT.
Dan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |