Or Sagi <[EMAIL PROTECTED]> writes: > Adds a CONFIG_RESERVE_LOWMEM option which reserves all memory below > CONFIG_PHYSICAL_START address. > > Cleans up some of the static early-boot memory allocations (nodemap, > trampoline) > Useful in particular for running virtual machines which require a 1:1 mapping > of the physical memory. This lets a virtual machine control a dma-capable > device > directly without hypervisor involvement.
With the infrastructure in ftp://firstfloor.org/pub/ak/x86_64/quilt/patches/early-reserve you can do this much cleaner (and likely safer) And using CONFIG_* options for such things is wrong anyways. If anything it should be run time options. -Andi > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/

