To obtain an address to a PFN in init_hypervisor_platform (called from arch/x86/kernel/setup.c:setup_arch) I use early_ioremap. Later the address to that PFN needs to be obtained with ioremap, and early_iounmap needs to be called on the first address.
When is the time to obtain and use the new pointer, and to release to old pointer? Right now I do that in the pci-device setup code, which happens to work. Unfortunately early_ioremap is not mentioned in Documentation/, hence the question. Olaf -- 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/
