u-boot.git/arch/x86/cpu, branch v2018.09

x86: zimage: Support booting Linux kernel from an EFI payload

2018-08-30T03:23:14Z

At present Linux kernel loaded from U-Boot as an EFI payload does not boot. This fills in kernel's boot params structure with the required critical EFI information like system table address and memory map stuff so that kernel can obtain essential data like runtime services and ACPI table to boot. With this patch, now U-Boot as an EFI payload becomes much more practical: it is another option of kernel bootloader, ie, can be a replacement for grub. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: efi: payload: Install E820 map from EFI memory map

2018-08-30T01:56:58Z

This implements payload-specific install_e820_map() to get E820 map from the EFI memory map descriptors. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

Merge tag 'signed-efi-2018.09' of git://github.com/agraf/u-boot

2018-08-21T17:15:21Z

Patch queue for efi - 2018-08-21 A few fixes for 2018.09. Most noticable are: - unbreak x86 target (-fdata-section fallout) - fix undefined behavior in a few corner cases - make Jetson TX1 boot again - RTS fixes - implement reset for simple output

x86: Include bss subsections in linker script

2018-08-20T12:17:43Z

When we build with -fdata-sections we may end up with bss subsections. Our linker script explicitly lists only a single consecutive bss section though. Adapt the statement to also include subsections. This fixes booting efi-x86_app_defconfig. Signed-off-by: Alexander Graf

x86: coreboot: Add generic coreboot payload support

2018-08-20T05:52:06Z

Currently building U-Boot as the coreboot payload requires user to change the build configuration for a specific board during menuconfig process. This uses the board's native device tree to configure the hardware. For example, the device tree provides PCI address range for the PCI host controller and U-Boot will re-program all PCI devices' BAR to be within this range. In order to make sure we don't mess up the hardware, we should guarantee the range matches what coreboot programs the chipset. But we really should make the coreboot payload support easier. Just like EFI payload, we can create a generic coreboot payload for all x86 boards as well. The payload is configured to include as many generic drivers as possible. All stuff that touches low level initialization are not allowed as such is the coreboot's responsibility. Platform specific drivers (like gpio, spi, etc) are not included. Signed-off-by: Bin Meng Reviewed-by: Christian Gmeiner

x86: Add efi_loader bits to x86_64 linker script

2018-07-25T12:57:44Z

The x86_64 linker script was missing efi runtime information. Add it. Signed-off-by: Alexander Graf

efi_loader: Rename sections to allow for implicit data

2018-07-25T12:57:44Z

Some times gcc may generate data that is then used within code that may be part of an efi runtime section. That data could be jump tables, constants or strings. In order to make sure we catch these, we need to ensure that gcc emits them into a section that we can relocate together with all the other efi runtime bits. This only works if the -ffunction-sections and -fdata-sections flags are passed and the efi runtime functions are in a section that starts with ".text". Up to now we had all efi runtime bits in sections that did not interfere with the normal section naming scheme, but this forces us to do so. Hence we need to move the efi_loader text/data/rodata sections before the global *(.text*) catch-all section. With this patch in place, we should hopefully have an easier time to extend the efi runtime functionality in the future. Signed-off-by: Alexander Graf [agraf: Fix x86_64 breakage]

x86: acpi: Don't touch ACPI hardware in write_acpi_tables()

2018-07-20T01:33:22Z

write_acpi_tables() currently touches ACPI hardware to switch to ACPI mode at the end. Move such operation out of this function, so that it only does what the function name tells us. Signed-off-by: Bin Meng Reviewed-by: Simon Glass Tested-by: Andy Shevchenko

x86: acpi: Move APIs unrelated to ACPI tables generation to a separate library

2018-07-20T01:33:22Z

acpi_find_fadt(), acpi_find_wakeup_vector() and enter_acpi_mode() are something unrelated to ACPI tables generation. Move these to a separate library. This also fixes several style issues reported by checkpatch in the original codes. Signed-off-by: Bin Meng Reviewed-by: Simon Glass Tested-by: Andy Shevchenko

x86: Switch to use DM sysreset driver

2018-07-20T01:33:22Z

This converts all x86 boards over to DM sysreset. Signed-off-by: Bin Meng Reviewed-by: Simon Glass Tested-by: Andy Shevchenko