[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] irq_guest_eoi_timer interaction with MSI
On 25/11/08 08:40, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: >>> But just as map_domain_page(), map_domain_page_global() can't be used >>> out of IRQ context... >> >> I would have kept the page mapped from when it was registered until domain >> death. Same as we do for guest-registered vcpu_info. > > Oh, I indeed didn't consider that option. The question is - does it scale? > 2Mb doesn't seem all that much for a global pool, but otoh it's perhaps > unlikely that 32-bit hypervisors would have to manage too large an > amount of domains/vCPU-s. So yes, I'll go that route. Yeah, exactly. Anyone who wants a larger number of domains/VCPUs probably has 64-bit-capable hardware. And lack of 64-bit capability is the only reason not to run 64-bit Xen these days. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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