On Sun, Aug 18, 2013 at 8:07 PM, Tang Chen <tangchen@xxxxxxxxxxxxxx> wrote: > On 08/16/2013 12:21 PM, Yinghai Lu wrote: > ...... > >>> By "put acpi_initrd_override in BRK", do you mean increase the BRK by >>> default ? >> >> >> Peter, >> >> Do you agree on extending BRK 256k to put copied override acpi tables? >> >> then we can find and copy them early in >> arch/x86/kernel/head64.c::x86_64_start_kernel() or >> arch/x86/kernel/head_32.S. > > > Hi Yinghai, > > If we use BRK to store acpi tables, we don't need to setup page tables. > If we do acpi_initrd_override() in setup_arch(), after early_ioremap is > available, we don't need to split it into find & copy. It would be much > easier. we don't need to use early_ioremap if acpi_initrd_override is called in arch/x86/kernel/head64.c::x86_64_start_kernel() or arch/x86/kernel/head_32.S. Thanks Yinghai -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>