28 May, 2020
1 commit
-
The latest Xilinx design tools called ISE and EDK has been released in
October 2013. New tool doesn't support any PPC405/PPC440 new designs.
These platforms are no longer supported and tested.PowerPC 405/440 port is orphan from 2013 by
commit cdeb89943bfc ("MAINTAINERS: Fix incorrect status tag") and
commit 19624236cce1 ("MAINTAINERS: Update Grant's email address and maintainership")
that's why it is time to remove the support fot these platforms.Signed-off-by: Michal Simek
Signed-off-by: Christophe Leroy
Acked-by: Arnd Bergmann
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/8c593895e2cb57d232d85ce4d8c3a1aa7f0869cc.1590079968.git.christophe.leroy@csgroup.eu
23 Jan, 2020
1 commit
-
ptdump_check_wx() is called from mark_rodata_ro() which only exists
when CONFIG_STRICT_KERNEL_RWX is selected.Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
Signed-off-by: Christophe Leroy
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/922d4939c735c6b52b4137838bcc066fffd4fc33.1578989545.git.christophe.leroy@c-s.fr
25 Nov, 2019
1 commit
-
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */KconfigSigned-off-by: Krzysztof Kozlowski
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/1574306461-7646-1-git-send-email-krzk@kernel.org
03 May, 2019
2 commits
-
Operations which write to memory and special purpose registers should be
restricted on systems with integrity guarantees (such as Secure Boot)
and, optionally, to avoid self-destructive behaviors.Add a config option, XMON_DEFAULT_RO_MODE, to set default xmon behavior.
The kernel cmdline options xmon=ro and xmon=rw override this default.The following xmon operations are affected:
memops:
disable memmove
disable memset
disable memzcan
memex:
no-op'd mwrite
super_regs:
no-op'd write_spr
bpt_cmds:
disable
proc_call:
disableSigned-off-by: Christopher M. Riedl
Reviewed-by: Oliver O'Halloran
Reviewed-by: Andrew Donnellan
Signed-off-by: Michael Ellerman -
Implement code to walk all pages and warn if any are found to be both
writable and executable. Depends on STRICT_KERNEL_RWX enabled, and is
behind the DEBUG_WX config option.This only runs on boot and has no runtime performance implications.
Very heavily influenced (and in some cases copied verbatim) from the
ARM64 code written by Laura Abbott (thanks!), since our ptdump
infrastructure is similar.Signed-off-by: Russell Currey
[mpe: Fixup build error when disabled]
Signed-off-by: Michael Ellerman
02 May, 2019
1 commit
-
This patch prepares a shadow area for KASAN.
The shadow area will be at the top of the kernel virtual
memory space above the fixmap area and will occupy one
eighth of the total kernel virtual memory space.Signed-off-by: Christophe Leroy
Signed-off-by: Michael Ellerman
22 Feb, 2019
1 commit
-
This patch moves the files related to page table dump in a
dedicated subdirectory.The purpose is to clean a bit arch/powerpc/mm by regrouping
multiple files handling a dedicated function.Signed-off-by: Christophe Leroy
[mpe: Shorten the file names while we're at it]
Signed-off-by: Michael Ellerman
13 Oct, 2018
1 commit
-
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:...
One side effect of (and the main motivation for) this change is making
the following two definitions behave exactly the same:config FOO
boolconfig FOO
bool
default nWith this change, neither of these will generate a
'# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
That might make it clearer to people that a bare 'default n' is
redundant.
...Signed-off-by: Bartlomiej Zolnierkiewicz
Signed-off-by: Michael Ellerman
02 Aug, 2018
1 commit
-
Move the source of lib/Kconfig.debug and arch/$(ARCH)/Kconfig.debug to
the top-level Kconfig. For two architectures that means moving their
arch-specific symbols in that menu into a new arch Kconfig.debug file,
and for a few more creating a dummy file so that we can include it
unconditionally.Also move the actual 'Kernel hacking' menu to lib/Kconfig.debug, where
it belongs.Signed-off-by: Christoph Hellwig
Signed-off-by: Masahiro Yamada
19 Jan, 2018
1 commit
-
New Kconfig is added "CONFIG_PPC_IRQ_SOFT_MASK_DEBUG" to add WARN_ON
to alert the invalid transitions. Also moved the code under the
CONFIG_TRACE_IRQFLAGS in arch_local_irq_restore() to new Kconfig.Reviewed-by: Nicholas Piggin
Signed-off-by: Madhavan Srinivasan
[mpe: Fix name of CONFIG option in change log]
Signed-off-by: Michael Ellerman
16 Jan, 2018
1 commit
-
This patch remove CONFIG_PPC_HTDUMP if not PPC_BOOK3S_64 to avoid
below compile failure on BOOK3S_32:In file included from arch/powerpc/mm/dump_hashpagetable.c:27:0:
./arch/powerpc/include/asm/plpar_wrappers.h: In function 'get_cede_latency_hint':
./arch/powerpc/include/asm/plpar_wrappers.h:27:2: error: implicit declaration of function 'get_lppaca' [-Werror=implicit-function-declaration]
...
arch/powerpc/mm/dump_hashpagetable.c: At top level:
arch/powerpc/mm/dump_hashpagetable.c:69:13: error: 'SLB_VSID_B' undeclared here (not in a function)
...
arch/powerpc/mm/dump_hashpagetable.c:506:38: error: 'VMEMMAP_BASE' undeclared (first use in this function)
arch/powerpc/mm/dump_hashpagetable.c:506:35: error: assignment makes integer from pointer without a cast [-Werror]Fixes: dd5ac03e0955 ("powerpc/mm: Fix page table dump build on non-Book3S")
Signed-off-by: Christophe Leroy
[mpe: Trim change log]
Signed-off-by: Michael Ellerman
17 Nov, 2017
1 commit
-
Pull powerpc updates from Michael Ellerman:
"A bit of a small release, I suspect in part due to me travelling for
KS. But my backlog of patches to review is smaller than usual, so I
think in part folks just didn't send as much this cycle.Non-highlights:
- Five fixes for the >128T address space handling, both to fix bugs
in our implementation and to bring the semantics exactly into line
with x86.Highlights:
- Support for a new OPAL call on bare metal machines which gives us a
true NMI (ie. is not masked by MSR[EE]=0) for debugging etc.- Support for Power9 DD2 in the CXL driver.
- Improvements to machine check handling so that uncorrectable errors
can be reported into the generic memory_failure() machinery.- Some fixes and improvements for VPHN, which is used under PowerVM
to notify the Linux partition of topology changes.- Plumbing to enable TM (transactional memory) without suspend on
some Power9 processors (PPC_FEATURE2_HTM_NO_SUSPEND).- Support for emulating vector loads form cache-inhibited memory, on
some Power9 revisions.- Disable the fast-endian switch "syscall" by default (behind a
CONFIG), we believe it has never had any users.- A major rework of the API drivers use when initiating and waiting
for long running operations performed by OPAL firmware, and changes
to the powernv_flash driver to use the new API.- Several fixes for the handling of FP/VMX/VSX while processes are
using transactional memory.- Optimisations of TLB range flushes when using the radix MMU on
Power9.- Improvements to the VAS facility used to access coprocessors on
Power9, and related improvements to the way the NX crypto driver
handles requests.- Implementation of PMEM_API and UACCESS_FLUSHCACHE for 64-bit.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Allen Pais, Andrew
Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Balbir Singh, Benjamin
Herrenschmidt, Breno Leitao, Christophe Leroy, Christophe Lombard,
Cyril Bur, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven,
Guilherme G. Piccoli, Gustavo Romero, Haren Myneni, Joel Stanley,
Kamalesh Babulal, Kautuk Consul, Markus Elfring, Masami Hiramatsu,
Michael Bringmann, Michael Neuling, Michal Suchanek, Naveen N. Rao,
Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pedro Miraglia
Franco de Carvalho, Philippe Bergheaud, Sandipan Das, Seth Forshee,
Shriya, Stephen Rothwell, Stewart Smith, Sukadev Bhattiprolu, Tyrel
Datwyler, Vaibhav Jain, Vaidyanathan Srinivasan, and William A.
Kennington III"* tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (151 commits)
powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature
powerpc/64s: Fix masking of SRR1 bits on instruction fault
powerpc/64s: mm_context.addr_limit is only used on hash
powerpc/64s/radix: Fix 128TB-512TB virtual address boundary case allocation
powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary
powerpc/64s/hash: Fix fork() with 512TB process address space
powerpc/64s/hash: Fix 128TB-512TB virtual address boundary case allocation
powerpc/64s/hash: Fix 512T hint detection to use >= 128T
powerpc: Fix DABR match on hash based systems
powerpc/signal: Properly handle return value from uprobe_deny_signal()
powerpc/fadump: use kstrtoint to handle sysfs store
powerpc/lib: Implement UACCESS_FLUSHCACHE API
powerpc/lib: Implement PMEM API
powerpc/powernv/npu: Don't explicitly flush nmmu tlb
powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm()
powerpc/powernv/idle: Round up latency and residency values
powerpc/kprobes: refactor kprobe_lookup_name for safer string operations
powerpc/kprobes: Blacklist emulate_update_regs() from kprobes
powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace
powerpc/kprobes: Disable preemption before invoking probe handler for optprobes
...
02 Nov, 2017
1 commit
-
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
22 Oct, 2017
1 commit
-
Back in 2008 we added support for "fast little-endian switch" in the
syscall path. This added a special case syscall number 0x1ebe, which
is caught very early in the system call exception and switches endian
with as little overhead as possible. See commit 745a14cc264b
("[POWERPC] Add fast little-endian switch system call") for full
details.Although it is fast, it's also completely non standard. The "syscall
number" is out of the range of normal syscalls, it can't be traced or
audited, and it's a bit of a wart. To the best of our knowledge it was
only used by one program, now long since discontinued.So in an effort to shake out any current users, put it behind a config
option, and make it default n. If anyone *is* using it they can
quickly reinstate it with a rebuild, and we can flip it to default y.Signed-off-by: Michael Ellerman
02 Feb, 2017
1 commit
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CONFIG_PPC_PTDUMP currently selects CONFIG_DEBUG_FS. But CONFIG_DEBUG_FS
is user-selectable, so we shouldn't select it. Instead depend on it.Signed-off-by: Michael Ellerman
01 Dec, 2016
1 commit
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In the recent commit 1515ab932156 ("powerpc/mm: Dump hash table") we
added code to dump the hage page table. Currently this can be selected
to build on any platform. However it breaks the build if we're building
for a non-Book3S platform, because none of the hash page table related
defines and so on exist. So restrict it to building only on Book3S.Similarly in commit 8eb07b187000 ("powerpc/mm: Dump linux pagetables")
we added code to dump the Linux page tables, which uses some constants
which are only defined on Book3S - so guard those with an #ifdef.Fixes: 1515ab932156 ("powerpc/mm: Dump hash table")
Fixes: 8eb07b187000 ("powerpc/mm: Dump linux pagetables")
Signed-off-by: Michael Ellerman
17 Nov, 2016
1 commit
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Useful to be able to dump the kernels page tables to check permissions
and memory types - derived from arm64's implementation.Add a debugfs file to check the page tables. To use this the PPC_PTDUMP
config option must be selected.Signed-off-by: Rashmica Gupta
Signed-off-by: Michael Ellerman
01 Aug, 2016
2 commits
-
This allows us to catch incorrect usage of cpu_has_feature() and
mmu_has_feature() prior to jump labels being initialised.mpe: Use printk() and dump_stack() rather than WARN_ON(), because
WARN_ON() may not work this early in boot. Rename the Kconfig.Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Michael Ellerman -
Add a kconfig option to control whether we use jump label for the
cpu/mmu_has_feature() checks. Currently this does nothing, but we will
enabled it in the subsequent patches.Signed-off-by: Michael Ellerman
30 Jul, 2016
1 commit
-
Freescale updates from Scott:
"Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
15 Jul, 2016
1 commit
-
The pseries HVC early debug options, CONFIG_PPC_EARLY_DEBUG_LPAR and
CONFIG_PPC_EARLY_DEBUG_LPAR_HVSI both require code that is part of the
hvc driver. If we turn them on but not CONFIG_HVC_CONSOLE then we get:arch/powerpc/kernel/built-in.o: In function `.udbg_early_init':
arch/powerpc/kernel/built-in.o:(.debug_addr+0x9a00): undefined reference to `udbg_init_debug_lpar'Similarly for HVSI. So make them both depend on CONFIG_HVC_CONSOLE.
Signed-off-by: Michael Ellerman
09 Jul, 2016
1 commit
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IMMR is now mapped by a fixed 512k page managed by the TLB miss
handler so it is not anymore necessary to PIN TLBsSigned-off-by: Christophe Leroy
Signed-off-by: Scott Wood
01 May, 2016
1 commit
-
Testing done by Paul Mackerras has shown that with a modern compiler
there is no negative effect on code generation from enabling
STRICT_MM_TYPECHECKS.So remove the option, and always use the strict type definitions.
Acked-by: Paul Mackerras
Signed-off-by: Michael Ellerman
16 Jan, 2016
1 commit
-
Pull powerpc updates from Michael Ellerman:
"Core:
- Ground work for the new Power9 MMU from Aneesh Kumar K.V
- Optimise FP/VMX/VSX context switching from Anton BlanchardMisc:
- Various cleanups from Krzysztof Kozlowski, John Ogness, Rashmica
Gupta, Russell Currey, Gavin Shan, Daniel Axtens, Michael Neuling,
Andrew Donnellan
- Allow wrapper to work on non-english system from Laurent Vivier
- Add rN aliases to the pt_regs_offset table from Rashmica Gupta
- Fix module autoload for rackmeter & axonram drivers from Luis de
Bethencourt
- Include KVM guest test in all interrupt vectors from Paul Mackerras
- Fix DSCR inheritance over fork() from Anton Blanchard
- Make value-returning atomics & {cmp}xchg* & their atomic_ versions
fully ordered from Boqun Feng
- Print MSR TM bits in oops messages from Michael Neuling
- Add TM signal return & invalid stack selftests from Michael Neuling
- Limit EPOW reset event warnings from Vipin K Parashar
- Remove the Cell QPACE code from Rashmica Gupta
- Append linux_banner to exception information in xmon from Rashmica
Gupta
- Add selftest to check if VSRs are corrupted from Rashmica Gupta
- Remove broken GregorianDay() from Daniel Axtens
- Import Anton's context_switch2 benchmark into selftests from
Michael Ellerman
- Add selftest script to test HMI functionality from Daniel Axtens
- Remove obsolete OPAL v2 support from Stewart Smith
- Make enter_rtas() private from Michael Ellerman
- PPR exception cleanups from Michael Ellerman
- Add page soft dirty tracking from Laurent Dufour
- Add support for Nvlink NPUs from Alistair Popple
- Add support for kexec on 476fpe from Alistair Popple
- Enable kernel CPU dlpar from sysfs from Nathan Fontenot
- Copy only required pieces of the mm_context_t to the paca from
Michael Neuling
- Add a kmsg_dumper that flushes OPAL console output on panic from
Russell Currey
- Implement save_stack_trace_regs() to enable kprobe stack tracing
from Steven Rostedt
- Add HWCAP bits for Power9 from Michael Ellerman
- Fix _PAGE_PTE breaking swapoff from Aneesh Kumar K.V
- Fix _PAGE_SWP_SOFT_DIRTY breaking swapoff from Hugh Dickins
- scripts/recordmcount.pl: support data in text section on powerpc
from Ulrich Weigand
- Handle R_PPC64_ENTRY relocations in modules from Ulrich Weigandcxl:
- cxl: Fix possible idr warning when contexts are released from
Vaibhav Jain
- cxl: use correct operator when writing pcie config space values
from Andrew Donnellan
- cxl: Fix DSI misses when the context owning task exits from Vaibhav
Jain
- cxl: fix build for GCC 4.6.x from Brian Norris
- cxl: use -Werror only with CONFIG_PPC_WERROR from Brian Norris
- cxl: Enable PCI device ID for future IBM CXL adapter from Uma
KrishnanFreescale:
- Freescale updates from Scott: Highlights include moving QE code out
of arch/powerpc (to be shared with arm), device tree updates, and
minor fixes"* tag 'powerpc-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (149 commits)
powerpc/module: Handle R_PPC64_ENTRY relocations
scripts/recordmcount.pl: support data in text section on powerpc
powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages
powerpc/mm: fix _PAGE_SWP_SOFT_DIRTY breaking swapoff
powerpc/mm: Fix _PAGE_PTE breaking swapoff
cxl: Enable PCI device ID for future IBM CXL adapter
cxl: use -Werror only with CONFIG_PPC_WERROR
cxl: fix build for GCC 4.6.x
powerpc: Add HWCAP bits for Power9
powerpc/powernv: Reserve PE#0 on NPU
powerpc/powernv: Change NPU PE# assignment
powerpc/powernv: Fix update of NVLink DMA mask
powerpc/powernv: Remove misleading comment in pci.c
powerpc: Implement save_stack_trace_regs() to enable kprobe stack tracing
powerpc: Fix build break due to paca mm_context_t changes
cxl: Fix DSI misses when the context owning task exits
MAINTAINERS: Update Scott Wood's e-mail address
powerpc/powernv: Fix minor off-by-one error in opal_mce_check_early_recovery()
powerpc: Fix style of self-test config prompts
powerpc/powernv: Only delay opal_rtc_read() retry when necessary
...
09 Jan, 2016
1 commit
-
Let all the archs that implement devmem_is_allowed() opt-in to a common
definition of CONFIG_STRICT_DEVM in lib/Kconfig.debug.Cc: Kees Cook
Cc: Russell King
Cc: Will Deacon
Cc: Benjamin Herrenschmidt
Cc: Martin Schwidefsky
Cc: Thomas Gleixner
Cc: "H. Peter Anvin"
Cc: Andrew Morton
Cc: Greg Kroah-Hartman
Cc: "David S. Miller"
Acked-by: Catalin Marinas
Acked-by: Heiko Carstens
[heiko: drop 'default y' for s390]
Acked-by: Ingo Molnar
Suggested-by: Arnd Bergmann
Signed-off-by: Dan Williams
27 Dec, 2015
1 commit
-
A few of the config prompts for powerpc self-tests have periods at the
end, which is inconsistent with the rest of the prompts. Remove the
periods.Signed-off-by: Andrew Donnellan
Signed-off-by: Michael Ellerman
11 May, 2015
1 commit
-
The STRICT_MM_TYPECHECKS code has bit-rotted over the years. To make it
possible to easily build test it, make it a CONFIG option.Signed-off-by: Michael Ellerman
07 Apr, 2015
1 commit
-
The celleb code has seen no actual development for ~7 years.
We (maintainers) have no access to test hardware, and it is highly
likely the code has bit-rotted.As far as we're aware the hardware was never widely available, and is
certainly no longer available, and no one on the list has shown any
interest in it over the years.So remove it. If anyone has one and cares please speak up.
Signed-off-by: Michael Ellerman
Acked-by: Benjamin Herrenschmidt
Acked-by: Jeremy Kerr
17 Mar, 2015
1 commit
-
We have set CONFIG_PPC_OF to always 'y' in commit 0a498d96a332
("powerpc: set CONFIG_PPC_OF=y always for ARCH=powerpc") nine years
ago. And the arch/ppc also has gone away for many years. The OF
functionality was also moved to a common place and be used by many
archs. So it does make no sense to keep such a option in the current
kernel. Just kill it.Signed-off-by: Kevin Hao
Acked-by: Benjamin Herrenschmidt
Signed-off-by: Michael Ellerman
05 Aug, 2014
1 commit
-
Patch queue for ppc - 2014-08-01
Highlights in this release include:
- BookE: Rework instruction fetch, not racy anymore now
- BookE HV: Fix ONE_REG accessors for some in-hardware registers
- Book3S: Good number of LE host fixes, enable HV on LE
- Book3S: Some misc bug fixes
- Book3S HV: Add in-guest debug support
- Book3S HV: Preload cache lines on context switch
- Remove 440 supportAlexander Graf (31):
KVM: PPC: Book3s PR: Disable AIL mode with OPAL
KVM: PPC: Book3s HV: Fix tlbie compile error
KVM: PPC: Book3S PR: Handle hyp doorbell exits
KVM: PPC: Book3S PR: Fix ABIv2 on LE
KVM: PPC: Book3S PR: Fix sparse endian checks
PPC: Add asm helpers for BE 32bit load/store
KVM: PPC: Book3S HV: Make HTAB code LE host aware
KVM: PPC: Book3S HV: Access guest VPA in BE
KVM: PPC: Book3S HV: Access host lppaca and shadow slb in BE
KVM: PPC: Book3S HV: Access XICS in BE
KVM: PPC: Book3S HV: Fix ABIv2 on LE
KVM: PPC: Book3S HV: Enable for little endian hosts
KVM: PPC: Book3S: Move vcore definition to end of kvm_arch struct
KVM: PPC: Deflect page write faults properly in kvmppc_st
KVM: PPC: Book3S: Stop PTE lookup on write errors
KVM: PPC: Book3S: Add hack for split real mode
KVM: PPC: Book3S: Make magic page properly 4k mappable
KVM: PPC: Remove 440 support
KVM: Rename and add argument to check_extension
KVM: Allow KVM_CHECK_EXTENSION on the vm fd
KVM: PPC: Book3S: Provide different CAPs based on HV or PR mode
KVM: PPC: Implement kvmppc_xlate for all targets
KVM: PPC: Move kvmppc_ld/st to common code
KVM: PPC: Remove kvmppc_bad_hva()
KVM: PPC: Use kvm_read_guest in kvmppc_ld
KVM: PPC: Handle magic page in kvmppc_ld/st
KVM: PPC: Separate loadstore emulation from priv emulation
KVM: PPC: Expose helper functions for data/inst faults
KVM: PPC: Remove DCR handling
KVM: PPC: HV: Remove generic instruction emulation
KVM: PPC: PR: Handle FSCR feature deselectsAlexey Kardashevskiy (1):
KVM: PPC: Book3S: Fix LPCR one_reg interfaceAneesh Kumar K.V (4):
KVM: PPC: BOOK3S: PR: Fix PURR and SPURR emulation
KVM: PPC: BOOK3S: PR: Emulate virtual timebase register
KVM: PPC: BOOK3S: PR: Emulate instruction counter
KVM: PPC: BOOK3S: HV: Update compute_tlbie_rb to handle 16MB base pageAnton Blanchard (2):
KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue
KVM: PPC: Assembly functions exported to modules need _GLOBAL_TOC()Bharat Bhushan (10):
kvm: ppc: bookehv: Added wrapper macros for shadow registers
kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1
kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR
kvm: ppc: booke: Add shared struct helpers of SPRN_ESR
kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7
kvm: ppc: Add SPRN_EPR get helper function
kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit
KVM: PPC: Booke-hv: Add one reg interface for SPRG9
KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer
KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_sprMichael Neuling (1):
KVM: PPC: Book3S HV: Add H_SET_MODE hcall handlingMihai Caraman (8):
KVM: PPC: e500mc: Enhance tlb invalidation condition on vcpu schedule
KVM: PPC: e500: Fix default tlb for victim hint
KVM: PPC: e500: Emulate power management control SPR
KVM: PPC: e500mc: Revert "add load inst fixup"
KVM: PPC: Book3e: Add TLBSEL/TSIZE defines for MAS0/1
KVM: PPC: Book3s: Remove kvmppc_read_inst() function
KVM: PPC: Allow kvmppc_get_last_inst() to fail
KVM: PPC: Bookehv: Get vcpu's last instruction for emulationPaul Mackerras (4):
KVM: PPC: Book3S: Controls for in-kernel sPAPR hypercall handling
KVM: PPC: Book3S: Allow only implemented hcalls to be enabled or disabled
KVM: PPC: Book3S PR: Take SRCU read lock around RTAS kvm_read_guest() call
KVM: PPC: Book3S: Make kvmppc_ld return a more accurate error indicationStewart Smith (2):
Split out struct kvmppc_vcore creation to separate function
Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8Conflicts:
Documentation/virtual/kvm/api.txt
28 Jul, 2014
1 commit
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The 440 target hasn't been properly functioning for a few releases and
before I was the only one who fixes a very serious bug that indicates to
me that nobody used it before either.Furthermore KVM on 440 is slow to the extent of unusable.
We don't have to carry along completely unused code. Remove 440 and give
us one less thing to worry about.Signed-off-by: Alexander Graf
25 Jun, 2014
1 commit
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In commit 27f4488872d9 "Add OPAL takeover from PowerVM" we added support
for "takeover" on OPAL v1 machines.This was a mode of operation where we would boot under pHyp, and query
for the presence of OPAL. If detected we would then do a special
sequence to take over the machine, and the kernel would end up running
in hypervisor mode.OPAL v1 was never a supported product, and was never shipped outside
IBM. As far as we know no one is still using it.Newer versions of OPAL do not use the takeover mechanism. Although the
query for OPAL should be harmless on machines with newer OPAL, we have
seen a machine where it causes a crash in Open Firmware.The code in early_init_devtree() to copy boot_command_line into cmd_line
was added in commit 817c21ad9a1f "Get kernel command line accross OPAL
takeover", and AFAIK is only used by takeover, so should also be
removed.Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt
11 Jun, 2014
1 commit
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__attribute__ ((unused))
WSP is the last user of CONFIG_PPC_A2, so we remove that as well.
Although CONFIG_PPC_ICSWX still exists, it's no longer selectable for
any Book3E platform, so we can remove the code in mmu-book3e.h that
depended on it.Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt
05 Jul, 2013
2 commits
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Merge Kconfig menu diet patches from Dave Hansen:
"I think the "Kernel Hacking" menu has gotten a bit out of hand. It is
over 120 lines long on my system with everything enabled and options
are scattered around it haphazardly.http://sr71.net/~dave/linux/kconfig-horror.png
Let's try to introduce some sanity. This set takes that 120 lines
down to 55 and makes it vastly easier to find some things. It's a
start.This set stands on its own, but there is plenty of room for follow-up
patches. The arch-specific debug options still end up getting stuck
in the top-level "kernel hacking" menu. OPTIMIZE_INLINING, for
instance, could obviously go in to the "compiler options" menu, but
the fact that it is defined in arch/ in a separate Kconfig file keeps
it on its own for the moment.The Signed-off-by's in here look funky. I changed employers while
working on this set, so I have signoffs from both email addresses"* emailed patches from Dave Hansen :
hang and lockup detection menu
kconfig: consolidate printk options
group locking debugging options
consolidate compilation option configs
consolidate runtime testing configs
order memory debugging Kconfig options
consolidate per-arch stack overflow debugging options -
Original posting:
http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com
Several architectures have similar stack debugging config options.
They all pretty much do the same thing, some with slightly
differing help text.This patch changes the architectures to instead enable a Kconfig
boolean, and then use that boolean in the generic Kconfig.debug
to present the actual menu option. This removes a bunch of
duplication and adds consistency across arches.Signed-off-by: Dave Hansen
Reviewed-by: H. Peter Anvin
Reviewed-by: James Hogan
Acked-by: Chris Metcalf [for tile]
Signed-off-by: Dave Hansen
Signed-off-by: Linus Torvalds
20 Jun, 2013
1 commit
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Signed-off-by: Alistair Popple
Signed-off-by: Benjamin Herrenschmidt
08 May, 2013
1 commit
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This patch adds a new udbg early debug console which utilises
statically defined input and output buffers stored within the kernel
BSS. It is primarily designed to assist with bring up of new hardware
which may not have a working console but which has a method of
reading/writing kernel memory.This version incorporates comments made by Ben H (thanks!).
Changes from v1:
- Add memory barriers.
- Ensure updating of read/write positions is atomic.Signed-off-by: Alistair Popple
Signed-off-by: Benjamin Herrenschmidt
10 Jul, 2012
1 commit
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Add the ability to inject IOMMU faults. We enable this per device
via a fail_iommu sysfs property, similar to fault injection on other
subsystems.An example:
...
0003:01:00.1 Ethernet controller: Emulex Corporation OneConnect 10Gb NIC (be3) (rev 02)To inject one error to this device:
echo 1 > /sys/bus/pci/devices/0003:01:00.1/fail_iommu
echo 1 > /sys/kernel/debug/fail_iommu/probability
echo 1 > /sys/kernel/debug/fail_iommu/timesAs feared, the first failure injected on the be3 results in an
unrecoverable error, taking down both functions of the card
permanently:be2net 0003:01:00.1: Unrecoverable error in the card
Signed-off-by: Anton Blanchard
Signed-off-by: Benjamin Herrenschmidt
30 Mar, 2012
1 commit
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The debugfs code is really generic for all platforms. This patch removes the
powerpc-specific directory reference and makes it available to all
architectures.Signed-off-by: Grant Likely
27 Feb, 2012
1 commit
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After this, we can remove the legacy iSeries code more easily.
Signed-off-by: Stephen Rothwell
Signed-off-by: Benjamin Herrenschmidt
