Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752171AbaAKNFz (ORCPT ); Sat, 11 Jan 2014 08:05:55 -0500 Received: from mail-wg0-f41.google.com ([74.125.82.41]:58007 "EHLO mail-wg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751343AbaAKNFx (ORCPT ); Sat, 11 Jan 2014 08:05:53 -0500 From: Leif Lindholm To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, matt.fleming@intel.com, roy.franz@linaro.org, msalter@redhat.com, linux@arm.linux.org.uk, grant.likely@secretlab.ca, patches@linaro.org, Leif Lindholm Subject: [PATCH v4 0/5] arm: add UEFI runtime services support Date: Sat, 11 Jan 2014 13:05:19 +0000 Message-Id: <1389445524-30623-1-git-send-email-leif.lindholm@linaro.org> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In systems based on [U]EFI-conformant firmware, runtime services provide a standardised way for the kernel to update firmware environment variables. This is used for example by efibootmgr to update which image should be loaded on next boot. This patchset implements basic support for UEFI runtime services on ARM platforms, as well as the basic underlying EFI support. It also defines a mechanism by which the required information is passed from the bootloader (the EFI stub submitted separately) to the kernel via FDT entries. This patchset depends on the presence of early_ioremap(). It has been validated against Mark Salter's generic implementation. It also depends on Mark's "efi: add helper function to get UEFI params from FDT" patch. Changes since v3: - Use new common function (from arm64 set) for extracting UEFI params from FDT. - Use new generic early_ioremap implementation (with early_memunmap). - Reworked/simplified phys_call code, using new shared functions/macros. - Slightly refactored to reduce number of explicit casts. - Also preserve and map EFI_ACPI_MEMORY_NVS regions. - Added some ACKs. Change since v2: - Updated FDT bindings. - Preserve regions marked RESERVED (but don't map them). - Rename 'efi' -> 'uefi' within this new port (leaving core code as is). Leif Lindholm (5): arm: break part of __soft_restart out into separate function arm: add new asm macro update_sctlr Documentation: arm: add UEFI support documentation arm: Add [U]EFI runtime services support init: efi: arm: enable (U)EFI runtime services on arm Documentation/arm/00-INDEX | 3 + Documentation/arm/uefi.txt | 61 ++++++ arch/arm/Kconfig | 16 ++ arch/arm/include/asm/assembler.h | 13 ++ arch/arm/include/asm/idmap.h | 1 + arch/arm/include/asm/uefi.h | 28 +++ arch/arm/kernel/Makefile | 2 + arch/arm/kernel/process.c | 12 +- arch/arm/kernel/setup.c | 4 + arch/arm/kernel/uefi.c | 418 ++++++++++++++++++++++++++++++++++++++ arch/arm/kernel/uefi_phys.S | 67 ++++++ arch/arm/mm/idmap.c | 15 ++ include/linux/efi.h | 2 +- init/main.c | 4 + 14 files changed, 634 insertions(+), 12 deletions(-) create mode 100644 Documentation/arm/uefi.txt create mode 100644 arch/arm/include/asm/uefi.h create mode 100644 arch/arm/kernel/uefi.c create mode 100644 arch/arm/kernel/uefi_phys.S -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/