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7b2c7b92be
freebsd-dev/sys/conf
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Breno Leitao 7b2c7b92be md: use prestaged mfs_root 
On PowerNV systems, the rootfs is passed through kexec, which loads the rootfs
into memory and set two fdt entries to describe where the file is located in
the memory;

I need to pass this memory region to the md device as a mfs_root, but, current
md driver does not support two things:

 * Just getting a pointer from an external (bootloader) memory. If I need to
workaround it, I would need to declare a static array and memcopy from this
external memory to this static variable.

 * The size of the image. The usage of mfs_root_end, which is not a pointer,
seems to be not possible for this prestaged scenario.

This patch simply adds a new way to load mfs_root from memory.

Differential Revision: https://reviews.freebsd.org/D15625
Approved by: kib, jhibbits (mentor)
2018-06-07 13:57:34 +00:00
..
config.mk Reduce overhead for simple 'make -V' lookups by avoiding 'find sys/'. 2018-03-10 02:09:36 +00:00
dtb.mk Add dtb overlays support 2018-03-24 21:30:24 +00:00
files cxgbe(4): Add code to deal with the chip's source MAC table (aka SMT). 2018-05-31 21:31:08 +00:00
files.amd64 Finish COMPAT_AOUT support for amd64. It wasn't in any amd64 or MI 2018-06-02 06:40:15 +00:00
files.arm Revert r327250 as it broke the build for some armv6 kernel and all armv4/5 2017-12-28 07:31:14 +00:00
files.arm64 arm64: rockchip: Add proper armclock support 2018-05-23 19:07:03 +00:00
files.i386 hwpmc: remove unused pre-table driven bits for intel 2018-05-31 22:41:07 +00:00
files.mips Make memmove an alias for memcpy 2018-05-24 21:11:24 +00:00
files.powerpc Add an IPMI attachment for PowerNV systems 2018-05-22 03:57:32 +00:00
files.riscv Simplify things a little 2018-05-10 02:31:48 +00:00
files.sparc64 Define memmove and make bcopy alt entry point 2018-05-24 21:11:28 +00:00
kern.mk Fix build: ignore a GCC 7.2.0 warning which says that third argument of 2018-06-04 16:20:22 +00:00
kern.opts.mk Add EFI to kernel options. 2018-03-17 17:18:29 +00:00
kern.post.mk Remove MK_AUTO_OBJ from env passed to PORTS_MODULES 2018-03-31 05:17:12 +00:00
kern.pre.mk Error out on attempt to link amd64 kernel with old binutils linker 2018-05-10 20:10:02 +00:00
kmod_syms_prefix.awk Add the infrastructure to support loading multiple versions of TCP 2017-06-08 20:41:28 +00:00
kmod_syms.awk
kmod.mk Allocate epoch for networking at startup 2018-05-10 19:13:00 +00:00
ldscript.amd64 amd64: tweak the read_frequently section 2018-05-18 07:31:26 +00:00
ldscript.arm remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.arm64 Explicitly include all .rodata.* sections in the kernel .rodata. This 2016-09-03 17:23:24 +00:00
ldscript.i386 i386 4/4G split. 2018-04-13 20:30:49 +00:00
ldscript.mips remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.mips.cfe remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.mips.mips64 remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.mips.octeon1 remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.powerpc remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
ldscript.powerpc64 Add support for 64-bit PowerPC kernels to be directly loaded by kexec, which 2017-12-29 20:30:10 +00:00
ldscript.powerpcspe Create a new MACHINE_ARCH for Freescale PowerPC e500v2 2016-10-22 01:57:15 +00:00
ldscript.riscv o Remove operation in machine mode. 2016-08-10 12:41:36 +00:00
ldscript.sparc64 remove CONSTRUCTORS from kernel linker scripts 2016-07-28 13:54:46 +00:00
Makefile.amd64
Makefile.arm Make kernel option KERNVIRTADDR optional, remove it from std.<platform> 2017-12-30 00:20:49 +00:00
Makefile.arm64
Makefile.i386
Makefile.mips Compile trampoline with soft-float on MIPS, to match the rest of the kernel 2016-11-16 03:24:20 +00:00
Makefile.powerpc Don't pass -Wa,-many through clang, the integrated as doesn't support it. 2017-01-22 06:00:05 +00:00
Makefile.riscv Support for v1.10 (latest) of RISC-V privilege specification. 2017-08-10 14:18:09 +00:00
Makefile.sparc64
makeLINT.mk Remove the mlx5 driver from LINT kernel config for 32-bit PPC 2018-05-30 02:26:36 +00:00
makeLINT.sed
newvers.sh Indent protection and some other oops from the prvious commits. 2017-11-20 19:56:11 +00:00
NOTES md: use prestaged mfs_root 2018-06-07 13:57:34 +00:00
options md: use prestaged mfs_root 2018-06-07 13:57:34 +00:00
options.amd64 Finish COMPAT_AOUT support for amd64. It wasn't in any amd64 or MI 2018-06-02 06:40:15 +00:00
options.arm Add a new ARM kernel option, LOCORE_MAP_MB, to control the size of the 2017-12-26 19:02:56 +00:00
options.arm64 Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
options.i386 Remove SVR4 (System V Release 4) binary compatibility support. 2017-02-28 05:14:42 +00:00
options.mips Add SMP support for BERI CPU. 2018-04-12 17:43:19 +00:00
options.powerpc Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
options.riscv Add full softfloat and hardfloat support for RISC-V. 2016-11-16 15:21:32 +00:00
options.sparc64
systags.sh sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
WITHOUT_SOURCELESS
WITHOUT_SOURCELESS_HOST
WITHOUT_SOURCELESS_UCODE rtwn(4), urtwn(4): merge common code, add support for 11ac devices. 2016-10-17 20:38:24 +00:00