Sounds great in theory at least, as long as it doesn't mean pushing a bunch of #ifdefs into other code.
Borislav Petkov <b...@alien8.de> wrote: >On Wed, Jan 23, 2013 at 05:56:09PM -0800, K. Y. Srinivasan wrote: >> diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S >> index 1975122..803ca69 100644 >> --- a/arch/x86/kernel/entry_64.S >> +++ b/arch/x86/kernel/entry_64.S >> @@ -1446,11 +1446,16 @@ ENTRY(xen_failsafe_callback) >> CFI_ENDPROC >> END(xen_failsafe_callback) >> >> -apicinterrupt XEN_HVM_EVTCHN_CALLBACK \ >> +apicinterrupt HYPERVISOR_CALLBACK_VECTOR \ >> xen_hvm_callback_vector xen_evtchn_do_upcall >> >> #endif /* CONFIG_XEN */ >> >> +#if IS_ENABLED(CONFIG_HYPERV) >> +apicinterrupt HYPERVISOR_CALLBACK_VECTOR \ >> + hyperv_callback_vector hyperv_vector_handler >> +#endif /* CONFIG_HYPERV */ > >arch/x86/built-in.o: In function `_set_gate': >/w/kernel/linux-2.6/arch/x86/include/asm/desc.h:328: undefined >reference to `hyperv_callback_vector' >make: *** [vmlinux] Error 1 > >because, of course: > ># CONFIG_HYPERV is not set > >But, I have a more serious pet-peeve with the whole hypervisors >detection stuff: we're building arch/x86/kernel/cpu/hypervisor.c >unconditionally and yet, we have CONFIG_PARAVIRT_GUEST to ask the user >whether she wants to enable some options for running linux as a guest. > >And actually, it would be better to put all that virt-related stuff >under a config option called HYPERVISOR or whatever, under "Processor >type and features" which opens a menu with all virt stuff for people >and >distros to select. > >This way, init_hypervisor_platform and the rest of hypervisors stuff >won't run needlessly on baremetal and setups who don't want that. > >Any non-starter reasons for not doing that? -- Sent from my mobile phone. Please excuse brevity and lack of formatting. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
