Messages in this thread | | | Date | Thu, 11 Jul 2013 22:56:17 +1000 | From | Alexey Kardashevskiy <> | Subject | Re: [PATCH 6/8] KVM: PPC: Add support for multiple-TCE hcalls |
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On 07/11/2013 10:51 PM, Alexander Graf wrote: > > On 11.07.2013, at 14:39, Benjamin Herrenschmidt wrote: > >> On Thu, 2013-07-11 at 13:15 +0200, Alexander Graf wrote: >>> And that's bad. Jeez, seriously. Don't argue this case. We enable new >>> features individually unless we're 100% sure we can keep everything >>> working. In this case an ENABLE_CAP doesn't hurt at all, because user >>> space still needs to handle the hypercalls if it wants them anyways. >>> But you get debugging for free for example. >> >> An ENABLE_CAP is utterly pointless. More bloat. But you seem to like >> it :-) >
> I don't like bloat usually. But Alexey even had an #ifdef DEBUG in there > to selectively disable in-kernel handling of multi-TCE. Not calling > ENABLE_CAP would give him exactly that without ugly #ifdefs in the > kernel.
No, it would not give m anithing. My ugly debug was to disable realmode only and still leave virtual mode on, not to disable both real and virtual modes. It is a lot easier to disable in kernel handling in QEMU.
-- Alexey
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