Quoting Keith Owens <kaos@xxxxxxxxxx>: {...} > A combination of options (2) and (3) would work. Have a single source > file for the IVT, using conditional macros. Use that source file to > build (at least) two copies of the IVT, for native and any virtualized > modes. The native copy of the IVT starts at label ia64_ivt in section > .text.ivt, as it does now. Any IVT versions for virtualized mode are > defined as __cpuinitdata, so they are discarded after boot, unless > CONFIG_HOTPLUG_CPU=y. arch/ia64/kernel/head.S copies the relevant > virtualized version over ia64_ivt when necessary, before initializing > cr.iva. > > Single source for maintenance. No indirect function overhead at run > time. Binary patching at boot time for the right mode. No wasted > space in the kernel. Good idea. The linker script will be slightly more complex however... Tristan. - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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