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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/arch/powerpc/kernel
История
Paul Mackerras 91a0030295 powerpc: Sync RPA note in zImage with kernel's RPA note 
Commit 9b09c6d909 ("powerpc: Change the
default link address for pSeries zImage kernels") changed the
real-base value in the CHRP note added by the addnote program from
12MB to 32MB to give more space for Open Firmware to load the zImage.
(The real-base value says where we want OF to position itself in
memory.)  However, this change was ineffective on most pSeries
machines, because the RPA note added by addnote has the "ignore me"
flag set to 1.  This was intended to tell OF to ignore just the RPA
note, but has the side effect of also making OF ignore the CHRP note
(at least on most pSeries machines).

To solve this we have to set the "ignore me" flag to 0 in the RPA
note.  (We can't just omit the RPA note because that is equivalent to
having an RPA note with default values, and the default values are not
what we want.)  However, then we have to make sure the values in the
zImage's RPA note match up with the values that the kernel supplies
later in prom_init.c with either the ibm,client-architecture-support
call or the process-elf-header call in prom_send_capabilities().

So this sets the "ignore me" flag in the RPA note in addnote to 0, and
adjusts the RPA note values in addnote.c and in prom_init.c to be
consistent with each other and with the values in ibm_architecture_vec.

However, since the wrapper is independent of the kernel, this doesn't
ensure that the notes will stay consistent.  To ensure that, this adds
code to addnote.c so that it can extract the kernel's RPA note from
the kernel binary and put that in the zImage.  To that end, we put the
kernel's fake ELF header (which contains the kernel's RPA note) into
its own section, and arrange for wrapper to pull out that section with
objcopy and pass it to addnote, which then extracts the RPA note from
it and transfers it to the zImage.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 		2008-10-10 15:55:19 +11:00
..
vdso32 powerpc: Fixup lwsync at runtime 2008-07-03 16:58:10 +10:00
vdso64 powerpc: Fixup lwsync at runtime 2008-07-03 16:58:10 +10:00
.gitignore powerpc: Ignore generated vmlinux.lds in git 2008-10-07 14:26:18 +11:00
Makefile powerpc: Merge 32 and 64-bit dma code 2008-09-24 16:26:45 -05:00
align.c powerpc: Fix uninitialised variable in VSX alignment code 2008-09-03 20:53:14 +10:00
asm-offsets.c POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical 2008-09-24 16:29:44 -05:00
audit.c [PATCH] audit signal recipients 2007-05-11 05:38:25 -04:00
btext.c powerpc: Use the common ascii hex helpers 2008-08-20 16:34:57 +10:00
clock.c [POWERPC] clk.h interface for platforms 2007-10-03 09:11:56 +10:00
compat_audit.c [PATCH] add SIGNAL syscall class (v3) 2007-05-11 05:38:25 -04:00
cpu_setup_6xx.S [POWERPC] ppc32: Fix errata for 603 CPUs 2008-04-21 15:00:32 -05:00
cpu_setup_44x.S powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
cpu_setup_pa6t.S [POWERPC] pasemi: Enable one more hid bit 2007-04-24 21:31:49 +10:00
cpu_setup_ppc970.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
cputable.c powerpc: Expose PMCs & cache topology in sysfs on 32-bit 2008-08-20 16:34:58 +10:00
crash.c powerpc: Increase CRASH_HANDLER_MAX 2008-06-30 22:31:00 +10:00
crash_dump.c powerpc: Fix /dev/oldmem interface for kdump 2008-08-20 09:50:21 +10:00
dma-iommu.c powerpc: Drop archdata numa_node 2008-09-24 16:26:43 -05:00
dma.c powerpc: Merge 32 and 64-bit dma code 2008-09-24 16:26:45 -05:00
entry_32.S powerpc: Add TIF_NOTIFY_RESUME support for tracehook 2008-07-28 16:30:50 +10:00
entry_64.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
firmware.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fpu.S powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ftrace.c ftrace: store mcount address in rec->ip 2008-06-23 22:10:56 +02:00
head_8xx.S [POWERPC] 8xx: fix swap 2008-03-07 08:42:28 -06:00
head_32.S POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical 2008-09-24 16:29:44 -05:00
head_40x.S [POWERPC] 40x/Book-E: Save/restore volatile exception registers 2008-06-02 14:56:35 -05:00
head_44x.S powerpc: rework 4xx PTE access and TLB miss 2008-07-09 13:36:17 -04:00
head_64.S powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
head_booke.h powerpc: rework 4xx PTE access and TLB miss 2008-07-09 13:36:17 -04:00
head_fsl_booke.S POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical 2008-09-24 16:29:44 -05:00
ibmebus.c powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices 2008-08-20 09:50:21 +10:00
idle.c nohz: prevent tick stop outside of the idle loop 2008-07-18 18:10:28 +02:00
idle_6xx.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_e500.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_power4.S [POWERPC] powermac: Support G5 CPU hotplug 2007-05-07 20:31:13 +10:00
init_task.c [PATCH] take init_files to fs/file.c 2008-05-16 17:22:20 -04:00
io.c ftrace: support for PowerPC 2008-05-23 22:43:11 +02:00
iomap.c [POWERPC] Add 64-bit resources support to pci_iomap 2007-09-20 07:36:52 -05:00
iommu.c powerpc/pseries: iommu enablement for CMO 2008-07-25 15:44:43 +10:00
irq.c powerpc: Make the irq reverse mapping radix tree lockless 2008-09-15 11:08:45 -07:00
isa-bridge.c [POWERPC] Remove leftover printk in isa-bridge.c 2008-05-09 20:22:59 +10:00
kgdb.c kgdb, powerpc: arch specific powerpc kgdb support 2008-07-23 11:30:15 -05:00
kprobes.c kprobes: improve kretprobe scalability with hashed locking 2008-07-25 10:53:30 -07:00
l2cr_6xx.S Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
legacy_serial.c powerpc/powermac: Fixup default serial port device for pmac_zilog 2008-07-28 16:30:53 +10:00
lparcfg.c powerpc: Replace __FUNCTION__ with __func__ 2008-08-20 16:34:57 +10:00
machine_kexec.c kexec jump 2008-07-26 12:00:04 -07:00
machine_kexec_32.c kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15 08:35:42 -07:00
machine_kexec_64.c Merge commit 'origin/master' 2008-07-16 11:07:59 +10:00
misc.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
misc_32.S powerpc: Fix error path in kernel_thread function 2008-10-10 15:55:18 +11:00
misc_64.S powerpc: Fix error path in kernel_thread function 2008-10-10 15:55:18 +11:00
module.c powerpc: Remove dead module_find_bug code 2008-08-18 14:22:35 +10:00
module_32.c powerpc: Move common module code into its own file 2008-07-01 11:28:05 +10:00
module_64.c lib: Correct printk %pF to work on all architectures 2008-09-09 11:51:15 -07:00
msi.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
nvram_64.c [POWERPC] pseries: Eliminate global error_log_cnt variable 2007-08-17 11:01:52 +10:00
of_device.c powerpc: Drop archdata numa_node 2008-09-24 16:26:43 -05:00
of_platform.c powerpc: Add missing reference to coherent_dma_mask 2008-07-08 21:06:35 -07:00
paca.c powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
pci-common.c powerpc: Fix sysfs pci mmap on 32-bit machines with 64-bit PCI 2008-10-07 14:26:21 +11:00
pci_32.c powerpc: Merge 32 and 64-bit dma code 2008-09-24 16:26:45 -05:00
pci_64.c powerpc: Merge 32 and 64-bit dma code 2008-09-24 16:26:45 -05:00
pci_dn.c [POWERPC] iSeries: eliminate pci_dn bussubno 2008-01-17 14:57:05 +11:00
pmc.c [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
ppc32.h powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ppc_ksyms.c powerpc: Introduce local (non-broadcast) forms of tlb invalidates 2008-09-24 16:29:40 -05:00
proc_ppc64.c powerpc: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
process.c powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
prom.c powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
prom_init.c powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00
prom_init_check.sh [POWERPC] Fix -Os kernel builds with newer gcc versions 2008-06-16 15:00:54 +10:00
prom_parse.c powerpc: Fix OF parsing of 64 bits PCI addresses 2008-07-22 10:39:34 +10:00
ptrace.c powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs 2008-07-30 15:26:54 +10:00
ptrace32.c powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes 2008-07-30 15:26:54 +10:00
reloc_64.S powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
rtas-proc.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
rtas-rtc.c [PATCH] powerpc: reorg RTAS delay code 2006-06-09 21:21:06 +10:00
rtas.c powerpc: Zero fill the return values of rtas argument buffer 2008-08-11 10:09:56 +10:00
rtas_flash.c SL*B: drop kmem cache argument from constructor 2008-07-26 12:00:07 -07:00
rtas_pci.c [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
setup-common.c powerpc: Fix major revision number for Freescale cores 2008-09-15 11:08:48 -07:00
setup.h [PATCH] powerpc: Make early xmon logic immune to location of early parsing 2006-05-19 15:02:12 +10:00
setup_32.c powerpc: Expose PMCs & cache topology in sysfs on 32-bit 2008-08-20 16:34:58 +10:00
setup_64.c powerpc: Make it possible to move the interrupt handlers away from the kernel 2008-09-15 11:08:08 -07:00
signal.c powerpc: Add TIF_NOTIFY_RESUME support for tracehook 2008-07-28 16:30:50 +10:00
signal.h powerpc: Clean up copy_to/from_user for vsx and fpr 2008-07-03 16:58:11 +10:00
signal_32.c powerpc: fix giveup_vsx to save registers correctly 2008-07-15 12:29:23 +10:00
signal_64.c powerpc: fix giveup_vsx to save registers correctly 2008-07-15 12:29:23 +10:00
smp-tbsync.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
smp.c powerpc: Make core id information available to userspace 2008-07-28 16:30:52 +10:00
softemu8xx.c powerpc: Add macros to access floating point registers in thread_struct. 2008-07-01 11:28:43 +10:00
stacktrace.c powerpc: Removed duplicated include in stacktrace.c 2008-07-28 16:30:47 +10:00
suspend.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
swsusp.c powerpc: fixup hard_irq_disable semantics 2007-05-11 08:29:34 -07:00
swsusp_32.S [POWERPC] Make altivec code in swsusp_32.S depend on CONFIG_ALTIVEC 2007-11-08 14:15:34 +11:00
swsusp_64.c [POWERPC] powermac: Suspend to disk on G5 2007-05-07 20:31:14 +10:00
swsusp_asm64.S powerpc: Fix 64-bit hibernation with 64k pages 2008-10-07 14:26:20 +11:00
sys_ppc32.c powerpc: Use sys_pause for 32-bit pause entry point 2008-09-15 11:08:39 -07:00
syscalls.c powerpc/mm: Add Strong Access Ordering support 2008-07-09 16:30:45 +10:00
sysfs.c powerpc: Fix build warnings introduced by PMC support on 32-bit 2008-09-18 17:57:50 -05:00
systbl.S [POWERPC] Align the sys_call_table 2007-10-11 14:36:47 +10:00
systbl_chk.c [POWERPC] Fix a couple of copyright symbols 2008-01-25 22:52:50 +11:00
systbl_chk.sh [POWERPC] Fix a couple of copyright symbols 2008-01-25 22:52:50 +11:00
tau_6xx.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
time.c Merge commit 'origin/master' 2008-07-16 11:07:59 +10:00
traps.c powerpc: BookE hardware watchpoint support 2008-07-25 15:44:39 +10:00
udbg.c [POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot 2008-04-24 21:08:11 +10:00
udbg_16550.c [POWERPC] 4xx: Add early udbg support for 40x processors 2007-12-23 13:13:03 -06:00
vdso.c powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00
vecemu.c
…
vector.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
vio.c powerpc: Drop archdata numa_node 2008-09-24 16:26:43 -05:00
vmlinux.lds.S powerpc: Sync RPA note in zImage with kernel's RPA note 2008-10-10 15:55:19 +11:00