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0be8491b71
There is no method for obtaining the number of PCI buses when using PCIAPI_DIRECT, and we therefore currently scan all possible bus numbers. This can cause a several-second startup delay in some virtualised environments, since PCI configuration space access will necessarily require the involvement of the hypervisor. Ameliorate this situation by defaulting to scanning only a single bus, and expanding the number of PCI buses to accommodate any subordinate buses that are detected during enumeration. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org