Now we setup_data is reserved via memblock and e820 and different handlers have different ways, and it is confusing. 1. SETUP_E820_EXT: is consumed early and will not copy or access again. have memory wasted. 2. SETUP_EFI: is accessed via ioremap every time at early stage. have memory wasted. 3. SETUP_DTB: is copied locally. have memory wasted. 4. SETUP_PCI: is accessed via ioremap for every pci devices, even run-time. 5. SETUP_KASLR: is accessed early, will not copy or access again. have memory wasted. Also setup_data is exported to debugfs for debug purpose. Here will convert to let every handler to decide how to handle it. and will not reserve the setup_data generally, so will not waste memory and also make memblock/e820 keep page aligned. 1. not touch E820 anymore. 2. copy SETUP_EFI to __initdata variable and access it without ioremap. 3. SETUP_DTB: reserver and copy to local and free. 4. SETUP_PCI: reverve localy and convert to list, to avoid keeping ioremap. 5. SETUP_KASLR: fix accessing kaslr_enabled accessing... 6. export SETUP_PCI via sysfs. Those patches could be applied on top of tip/x86/urgent with SETUP_KASLR support. Yinghai Lu (8): x86, kaslr: get kaslr_enabled back correctly x86: Kill E820_RESERVED_KERN x86, efi: copy SETUP_EFI data and access directly x86, of: let add_dtb reserve by itself x86, boot: Add add_pci handler for SETUP_PCI x86: kill not used setup_data handling code x86, pci: convert SETUP_PCI data to list x86, pci: export SETUP_PCI data via sysfs arch/x86/include/asm/efi.h | 2 +- arch/x86/include/asm/pci.h | 2 + arch/x86/include/asm/prom.h | 9 +- arch/x86/include/uapi/asm/e820.h | 9 -- arch/x86/kernel/devicetree.c | 39 +++--- arch/x86/kernel/e820.c | 6 +- arch/x86/kernel/kdebugfs.c | 142 -------------------- arch/x86/kernel/setup.c | 57 ++------ arch/x86/kernel/tboot.c | 3 +- arch/x86/mm/init_64.c | 11 +- arch/x86/pci/common.c | 281 ++++++++++++++++++++++++++++++++++++--- arch/x86/platform/efi/efi.c | 13 +- arch/x86/platform/efi/efi_64.c | 13 +- arch/x86/platform/efi/quirks.c | 23 +--- 14 files changed, 336 insertions(+), 274 deletions(-) -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
