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Add a define for the UVC rc 0x0100 that indicates that a UV-call was
successful but may serve more data if called with a larger buffer
again.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20241024062638.1465970-2-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Utilize the new Query Ultravisor Keys UVC to give user space the
information which host-keys are installed on the system.
Create a new sysfs directory 'firmware/uv/keys' that contains the hash
of the host-key and the backup host-key of that system. Additionally,
the file 'all' contains the response from the UVC possibly containing
more key-hashes than currently known.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20241023075529.2561384-1-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Streamline the sysfs generation to make it more extensible.
Add a function to create a sysfs entry in the uv-sysfs dir.
Use this function for the query directory.
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Christoph Schlameuss <schlameuss@linux.ibm.com>
Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
Link: https://lore.kernel.org/r/20241015113940.3088249-2-seiden@linux.ibm.com
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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page_to_phys is duplicated by all architectures, and from some strange
reason placed in <asm/io.h> where it doesn't fit at all.
phys_to_page is only provided by a few architectures despite having a lot
of open coded users.
Provide generic versions in <asm-generic/memory_model.h> to make these
helpers more easily usable.
Note with this patch powerpc loses the CONFIG_DEBUG_VIRTUAL pfn_valid
check. It will be added back in a generic version later.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Use kvm_release_page_dirty() when unpinning guest pages, as the pfn was
retrieved via pin_guest_page(), i.e. is guaranteed to be backed by struct
page memory. This will allow dropping kvm_release_pfn_dirty() and
friends.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-81-seanjc@google.com>
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Remove KVM_ERR_PTR_BAD_PAGE and instead return NULL, as "bad page" is just
a leftover bit of weirdness from days of old when KVM stuffed a "bad" page
into the guest instead of actually handling missing pages. See commit
cea7bb21280e ("KVM: MMU: Make gfn_to_page() always safe").
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20241010182427.1434605-2-seanjc@google.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred for
presenting attributes to user space in sysfs. Convert the left-over uses
in the s390/crypto code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/ipl code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/nospec-sysfs code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/perf_event code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/smp code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/time code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert the left-over
uses in the s390/topology code.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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s390 sets "elfcorehdr_addr = ELFCORE_ADDR_MAX;" early during
setup_arch() to deactivate the "elfcorehdr= kernel" parameter,
resulting in is_kdump_kernel() returning "false".
During vmcore_init()->elfcorehdr_alloc(), if on a dump kernel and
allocation succeeded, elfcorehdr_addr will be set to a valid address
and is_kdump_kernel() will consequently return "true".
is_kdump_kernel() should return a consistent result during all boot
stages, and properly return "true" if in a kdump environment - just
like it is done on powerpc where "false" is indicated in fadump
environments, as added in commit b098f1c32365 ("powerpc/fadump: make
is_kdump_kernel() return false when fadump is active").
Similarly provide a custom is_kdump_kernel() implementation that will only
return "true" in kdump environments, and will do so consistently during
boot.
Update the documentation of dump_available().
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Link: https://lore.kernel.org/r/20241023090651.1115507-1-david@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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kernel_page_present() was intentionally not implemented when adding
ARCH_HAS_SET_DIRECT_MAP support, since it was only used for suspend/resume
which is not supported anymore on s390.
A new bpf use case led to a compile error specific to s390. Even though
this specific use case went away implement kernel_page_present(), so that
the API is complete and potential future users won't run into this problem.
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Closes: https://lore.kernel.org/all/045de961-ac69-40cc-b141-ab70ec9377ec@iogearbox.net
Fixes: 0490d6d7ba0a ("s390/mm: enable ARCH_HAS_SET_DIRECT_MAP")
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Run codespell on arch/s390 and drivers/s390 and fix all typos.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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2fe2abf896c1 ("PCI: augment bus resource table with a list") added
PCI_SUBTRACTIVE_DECODE which is put into the struct pci_bus_resource flags
field but is never read. There seems to never have been users for it.
Remove both PCI_SUBTRACTIVE_DECODE and the flags field from the struct
pci_bus_resource.
Link: https://lore.kernel.org/r/20241017141111.44612-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
- Fix PCI error recovery by handling error events correctly
- Fix CCA crypto card behavior within protected execution environment
- Two KVM commits which fix virtual vs physical address handling bugs
in KVM pfault handling
- Fix return code handling in pckmo_key2protkey()
- Deactivate sclp console as late as possible so that outstanding
messages appear on the console instead of being dropped on reboot
- Convert newlines to CRLF instead of LFCR for the sclp vt220 driver,
as required by the vt220 specification
- Initialize also psw mask in perf_arch_fetch_caller_regs() to make
sure that user_mode(regs) will return false
- Update defconfigs
* tag 's390-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: Update defconfigs
s390: Initialize psw mask in perf_arch_fetch_caller_regs()
s390/sclp_vt220: Convert newlines to CRLF instead of LFCR
s390/sclp: Deactivate sclp after all its users
s390/pkey_pckmo: Return with success for valid protected key types
KVM: s390: Change virtual to physical address access in diag 0x258 handler
KVM: s390: gaccess: Check if guest address is in memslot
s390/ap: Fix CCA crypto card behavior within protected execution environment
s390/pci: Handle PCI error codes other than 0x3a
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Use the irq_get_nr_irqs() function instead of the global variable
'nr_irqs'. Prepare for changing 'nr_irqs' from an exported global
variable into a variable with file scope.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241015190953.1266194-6-bvanassche@acm.org
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The generic memcpy_{from,to}io and memset_io functions have a different
prototype than the zpci_memcpy_{from,to}io and zpci_memset_io functions.
But in driver code zpci functions are used as IO memcpy directly. So,
align their prototypes.
Signed-off-by: Julian Vetter <jvetter@kalrayinc.com>
Link: https://lore.kernel.org/r/20241010130100.710005-2-jvetter@kalrayinc.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Also initialize regs->psw.mask in perf_arch_fetch_caller_regs().
This way user_mode(regs) will return false, like it should.
It looks like all current users initialize regs to zero, so that this
doesn't fix a bug currently. However it is better to not rely on callers
to do this.
Fixes: 914d52e46490 ("s390: implement perf_arch_fetch_caller_regs")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The introduction of vdso/page.h made the definition of _PAGE_SHIFT,
_PAGE_SIZE, _PAGE_MASK redundant.
Refactor the code to remove the macros.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241014151340.1639555-4-vincenzo.frascino@arm.com
Closes: https://lore.kernel.org/oe-kbuild-all/202410112106.mvc2U2p0-lkp@intel.com/
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The VDSO implementation includes headers from outside of the
vdso/ namespace.
Introduce vdso/page.h to make sure that the generic library
uses only the allowed namespace.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Link: https://lore.kernel.org/all/20241014151340.1639555-3-vincenzo.frascino@arm.com
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Since the generic VDSO clock mode storage is used, this header file is
unused and can be removed.
This avoids including a non-VDSO header while building the VDSO,
which can lead to compilation errors.
Also drop the comment which is out of date and in the wrong place.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-6-7fe5a3ea4382@linutronix.de
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Most architectures use pt_regs within ftrace_regs making a lot of the
accessor functions just calls to the pt_regs internally. Instead of
duplication this effort, use a HAVE_ARCH_FTRACE_REGS for architectures
that have their own ftrace_regs that is not based on pt_regs and will
define all the accessor functions, and for the architectures that just use
pt_regs, it will leave it undefined, and the default accessor functions
will be used.
Note, this will also make it easier to add new accessor functions to
ftrace_regs as it will mean having to touch less architectures.
Cc: <linux-arch@vger.kernel.org>
Cc: "x86@kernel.org" <x86@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/20241010202114.2289f6fd@gandalf.local.home
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com> # s390
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> # powerpc
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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This fixes a crash when surprise hot-unplugging a PCI device. This crash
happens because during hot-unplug __iommu_group_set_domain_nofail()
attaching the default domain fails when the platform no longer
recognizes the device as it has already been removed and we end up with
a NULL domain pointer and UAF. This is exactly the case referred to in
the second comment in __iommu_device_set_domain() and just as stated
there if we can instead attach the blocking domain the UAF is prevented
as this can handle the already removed device. Implement the blocking
domain to use this handling. With this change, the crash is fixed but
we still hit a warning attempting to change DMA ownership on a blocked
device.
Fixes: c76c067e488c ("s390/pci: Use dma-iommu layer")
Co-developed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240910211516.137933-1-mjrosato@linux.ibm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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ftrace_regs was created to hold registers that store information to save
function parameters, return value and stack. Since it is a subset of
pt_regs, it should only be used by its accessor functions. But because
pt_regs can easily be taken from ftrace_regs (on most archs), it is
tempting to use it directly. But when running on other architectures, it
may fail to build or worse, build but crash the kernel!
Instead, make struct ftrace_regs an empty structure and have the
architectures define __arch_ftrace_regs and all the accessor functions
will typecast to it to get to the actual fields. This will help avoid
usage of ftrace_regs directly.
Link: https://lore.kernel.org/all/20241007171027.629bdafd@gandalf.local.home/
Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>
Cc: "x86@kernel.org" <x86@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Naveen N Rao <naveen@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/20241008230628.958778821@goodmis.org
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Heiko Carstens <hca@linux.ibm.com> # s390
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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This attribute will be used to communicate function type specific
firmware controlled flag bits.
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Signed-off-by: Antonia Jonas <antonia@toertel.de>
Link: https://lore.kernel.org/r/20241003115648.26188-1-antonia@toertel.de
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Compiling the kernel with clang W=2 produces a warning that the
parameter declarations in some routines would shadow the definition of
the global variable stfle_fac_list. Address this warning by renaming the
parameters to fac_list.
Fixes: 17e89e1340a3 ("s390/facilities: move stfl information from lowcore to global data")
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Per Documentation/filesystems/sysfs.rst, sysfs_emit() is preferred over
sprintf for presenting attributes to user space. Convert over two
left-over uses in the s390 PCI code.
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Set PMU enabled bit after lpp() call. This ensures the proper
task PID is loaded by the llp instruction into Program Parameter
register from where it is copied to each sampling data buffer
(SDB) sample entry after the sampling was enabled.
The barrier() instruction is not needed as cpumsf_pmu_enable()
changes a CPU specific variable. Only the CPU that task is
running on changes structure members.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Ensure that VFs used in isolation, that is with their parent PF not
visible to the configuration but with their RID exposed, are treated
compatibly with existing isolated VF use cases without exposed RID
including RoCE Express VFs. This allows creating configurations where
one LPAR manages PFs while their child VFs are used by other LPARs. This
gives the LPAR managing the PFs a role analogous to that of the
hypervisor in a typical use case of passing child VFs to guests.
Instead of creating a multifunction struct zpci_bus whenever a PCI
function with RID exposed is discovered only create such a bus for
configured physical functions and only consider multifunction busses
when searching for an existing bus. Additionally only set zdev->devfn to
the devfn part of the RID once the function is added to a multifunction
bus.
This also fixes probing of more than 7 such isolated VFs from the same
physical bus. This is because common PCI code in pci_scan_slot() only
looks for more functions when pdev->multifunction is set which somewhat
counter intutively is not the case for VFs.
Note that PFs are looked at before their child VFs is guaranteed because
we sort the zpci_list by RID ascending.
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The newly introduced topology ID (TID) field in the CLP Query PCI
Function explicitly identifies groups of PCI functions whose RIDs belong
to the same (sub-)topology. When available use the TID instead of the
PCHID to match zPCI busses/domains for multi-function devices. Note that
currently only a single PCI bus per TID is supported. This change is
required because in future machines the PCHID will not identify a PCI
card but a specific port in the case of some multi-port NICs while from
a PCI point of view the entire card is a subtopology.
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Instead of relying on the observed but not architected firmware behavior
that PCI functions from the same card are listed in ascending RID order
in clp_list_pci() ensure this by sorting. To allow for sorting separate
the initial clp_list_pci() and creation of the virtual PCI busses.
Note that fundamentally in our per-PCI function hotplug design non RID
order of discovery is still possible. For example when the two PFs of
a two port NIC are hotplugged after initial boot and in descending RID
order. In this case the virtual PCI bus would be created by the second
PF using that PF's UID as domain number instead of that of the first PF.
Thus the domain number would then change from the UID of the second PF
to that of the first PF on reboot but there is really nothing we can do
about that since changing domain numbers at runtime seems even worse.
This only impacts the domain number as the RIDs are consistent and thus
even with just the second PF visible it will show up in the correct
position on the virtual bus.
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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The parameters for the diag 0x258 are real addresses, not virtual, but
KVM was using them as virtual addresses. This only happened to work, since
the Linux kernel as a guest used to have a 1:1 mapping for physical vs
virtual addresses.
Fix KVM so that it correctly uses the addresses as real addresses.
Cc: stable@vger.kernel.org
Fixes: 8ae04b8f500b ("KVM: s390: Guest's memory access functions get access registers")
Suggested-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Michael Mueller <mimu@linux.ibm.com>
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20240917151904.74314-3-nrb@linux.ibm.com
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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Previously, access_guest_page() did not check whether the given guest
address is inside of a memslot. This is not a problem, since
kvm_write_guest_page/kvm_read_guest_page return -EFAULT in this case.
However, -EFAULT is also returned when copy_to/from_user fails.
When emulating a guest instruction, the address being outside a memslot
usually means that an addressing exception should be injected into the
guest.
Failure in copy_to/from_user however indicates that something is wrong
in userspace and hence should be handled there.
To be able to distinguish these two cases, return PGM_ADDRESSING in
access_guest_page() when the guest address is outside guest memory. In
access_guest_real(), populate vcpu->arch.pgm.code such that
kvm_s390_inject_prog_cond() can be used in the caller for injecting into
the guest (if applicable).
Since this adds a new return value to access_guest_page(), we need to make
sure that other callers are not confused by the new positive return value.
There are the following users of access_guest_page():
- access_guest_with_key() does the checking itself (in
guest_range_to_gpas()), so this case should never happen. Even if, the
handling is set up properly.
- access_guest_real() just passes the return code to its callers, which
are:
- read_guest_real() - see below
- write_guest_real() - see below
There are the following users of read_guest_real():
- ar_translation() in gaccess.c which already returns PGM_*
- setup_apcb10(), setup_apcb00(), setup_apcb11() in vsie.c which always
return -EFAULT on read_guest_read() nonzero return - no change
- shadow_crycb(), handle_stfle() always present this as validity, this
could be handled better but doesn't change current behaviour - no change
There are the following users of write_guest_real():
- kvm_s390_store_status_unloaded() always returns -EFAULT on
write_guest_real() failure.
Fixes: 2293897805c2 ("KVM: s390: add architecture compliant guest access functions")
Cc: stable@vger.kernel.org
Signed-off-by: Nico Boehr <nrb@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20240917151904.74314-2-nrb@linux.ibm.com
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
|
|
The Linux implementation of PCI error recovery for s390 was based on the
understanding that firmware error recovery is a two step process with an
optional initial error event to indicate the cause of the error if known
followed by either error event 0x3A (Success) or 0x3B (Failure) to
indicate whether firmware was able to recover. While this has been the
case in testing and the error cases seen in the wild it turns out this
is not correct. Instead firmware only generates 0x3A for some error and
service scenarios and expects the OS to perform recovery for all PCI
events codes except for those indicating permanent error (0x3B, 0x40)
and those indicating errors on the function measurement block (0x2A,
0x2B, 0x2C). Align Linux behavior with these expectations.
Fixes: 4cdf2f4e24ff ("s390/pci: implement minimal PCI error recovery")
Reviewed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
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|
When /proc/kcore is read an attempt to read the first two pages results in
HW-specific page swap on s390 and another (so called prefix) pages are
accessed instead. That leads to a wrong read.
Allow architecture-specific translation of memory addresses using
kc_xlate_dev_mem_ptr() and kc_unxlate_dev_mem_ptr() callbacks similarily
to /dev/mem xlate_dev_mem_ptr() and unxlate_dev_mem_ptr() callbacks. That
way an architecture can deal with specific physical memory ranges.
Re-use the existing /dev/mem callback implementation on s390, which
handles the described prefix pages swapping correctly.
For other architectures the default callback is basically NOP. It is
expected the condition (vaddr == __va(__pa(vaddr))) always holds true for
KCORE_RAM memory type.
Link: https://lkml.kernel.org/r/20240930122119.1651546-1-agordeev@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Pull x86 kvm updates from Paolo Bonzini:
"x86:
- KVM currently invalidates the entirety of the page tables, not just
those for the memslot being touched, when a memslot is moved or
deleted.
This does not traditionally have particularly noticeable overhead,
but Intel's TDX will require the guest to re-accept private pages
if they are dropped from the secure EPT, which is a non starter.
Actually, the only reason why this is not already being done is a
bug which was never fully investigated and caused VM instability
with assigned GeForce GPUs, so allow userspace to opt into the new
behavior.
- Advertise AVX10.1 to userspace (effectively prep work for the
"real" AVX10 functionality that is on the horizon)
- Rework common MSR handling code to suppress errors on userspace
accesses to unsupported-but-advertised MSRs
This will allow removing (almost?) all of KVM's exemptions for
userspace access to MSRs that shouldn't exist based on the vCPU
model (the actual cleanup is non-trivial future work)
- Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC)
splits the 64-bit value into the legacy ICR and ICR2 storage,
whereas Intel (APICv) stores the entire 64-bit value at the ICR
offset
- Fix a bug where KVM would fail to exit to userspace if one was
triggered by a fastpath exit handler
- Add fastpath handling of HLT VM-Exit to expedite re-entering the
guest when there's already a pending wake event at the time of the
exit
- Fix a WARN caused by RSM entering a nested guest from SMM with
invalid guest state, by forcing the vCPU out of guest mode prior to
signalling SHUTDOWN (the SHUTDOWN hits the VM altogether, not the
nested guest)
- Overhaul the "unprotect and retry" logic to more precisely identify
cases where retrying is actually helpful, and to harden all retry
paths against putting the guest into an infinite retry loop
- Add support for yielding, e.g. to honor NEED_RESCHED, when zapping
rmaps in the shadow MMU
- Refactor pieces of the shadow MMU related to aging SPTEs in
prepartion for adding multi generation LRU support in KVM
- Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is
enabled, i.e. when the CPU has already flushed the RSB
- Trace the per-CPU host save area as a VMCB pointer to improve
readability and cleanup the retrieval of the SEV-ES host save area
- Remove unnecessary accounting of temporary nested VMCB related
allocations
- Set FINAL/PAGE in the page fault error code for EPT violations if
and only if the GVA is valid. If the GVA is NOT valid, there is no
guest-side page table walk and so stuffing paging related metadata
is nonsensical
- Fix a bug where KVM would incorrectly synthesize a nested VM-Exit
instead of emulating posted interrupt delivery to L2
- Add a lockdep assertion to detect unsafe accesses of vmcs12
structures
- Harden eVMCS loading against an impossible NULL pointer deref
(really truly should be impossible)
- Minor SGX fix and a cleanup
- Misc cleanups
Generic:
- Register KVM's cpuhp and syscore callbacks when enabling
virtualization in hardware, as the sole purpose of said callbacks
is to disable and re-enable virtualization as needed
- Enable virtualization when KVM is loaded, not right before the
first VM is created
Together with the previous change, this simplifies a lot the logic
of the callbacks, because their very existence implies
virtualization is enabled
- Fix a bug that results in KVM prematurely exiting to userspace for
coalesced MMIO/PIO in many cases, clean up the related code, and
add a testcase
- Fix a bug in kvm_clear_guest() where it would trigger a buffer
overflow _if_ the gpa+len crosses a page boundary, which thankfully
is guaranteed to not happen in the current code base. Add WARNs in
more helpers that read/write guest memory to detect similar bugs
Selftests:
- Fix a goof that caused some Hyper-V tests to be skipped when run on
bare metal, i.e. NOT in a VM
- Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES
guest
- Explicitly include one-off assets in .gitignore. Past Sean was
completely wrong about not being able to detect missing .gitignore
entries
- Verify userspace single-stepping works when KVM happens to handle a
VM-Exit in its fastpath
- Misc cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
Documentation: KVM: fix warning in "make htmldocs"
s390: Enable KVM_S390_UCONTROL config in debug_defconfig
selftests: kvm: s390: Add VM run test case
KVM: SVM: let alternatives handle the cases when RSB filling is required
KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid
KVM: x86/mmu: Use KVM_PAGES_PER_HPAGE() instead of an open coded equivalent
KVM: x86/mmu: Add KVM_RMAP_MANY to replace open coded '1' and '1ul' literals
KVM: x86/mmu: Fold mmu_spte_age() into kvm_rmap_age_gfn_range()
KVM: x86/mmu: Morph kvm_handle_gfn_range() into an aging specific helper
KVM: x86/mmu: Honor NEED_RESCHED when zapping rmaps and blocking is allowed
KVM: x86/mmu: Add a helper to walk and zap rmaps for a memslot
KVM: x86/mmu: Plumb a @can_yield parameter into __walk_slot_rmaps()
KVM: x86/mmu: Move walk_slot_rmaps() up near for_each_slot_rmap_range()
KVM: x86/mmu: WARN on MMIO cache hit when emulating write-protected gfn
KVM: x86/mmu: Detect if unprotect will do anything based on invalid_list
KVM: x86/mmu: Subsume kvm_mmu_unprotect_page() into the and_retry() version
KVM: x86: Rename reexecute_instruction()=>kvm_unprotect_and_retry_on_failure()
KVM: x86: Update retry protection fields when forcing retry on emulation failure
KVM: x86: Apply retry protection to "unprotect on failure" path
KVM: x86: Check EMULTYPE_WRITE_PF_TO_SP before unprotecting gfn
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Clean up and improve vdso code: use SYM_* macros for function and
data annotations, add CFI annotations to fix GDB unwinding, optimize
the chacha20 implementation
- Add vfio-ap driver feature advertisement for use by libvirt and
mdevctl
* tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/vfio-ap: Driver feature advertisement
s390/vdso: Use one large alternative instead of an alternative branch
s390/vdso: Use SYM_DATA_START_LOCAL()/SYM_DATA_END() for data objects
tools: Add additional SYM_*() stubs to linkage.h
s390/vdso: Use macros for annotation of asm functions
s390/vdso: Add CFI annotations to __arch_chacha20_blocks_nostack()
s390/vdso: Fix comment within __arch_chacha20_blocks_nostack()
s390/vdso: Get rid of permutation constants
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no_llseek had been defined to NULL two years ago, in commit 868941b14441
("fs: remove no_llseek")
To quote that commit,
At -rc1 we'll need do a mechanical removal of no_llseek -
git grep -l -w no_llseek | grep -v porting.rst | while read i; do
sed -i '/\<no_llseek\>/d' $i
done
would do it.
Unfortunately, that hadn't been done. Linus, could you do that now, so
that we could finally put that thing to rest? All instances are of the
form
.llseek = no_llseek,
so it's obviously safe.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"These are only two small patches, one cleanup for arch/alpha and a
preparation patch cleaning up the handling of runtime constants in the
linker scripts"
* tag 'asm-generic-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
runtime constants: move list of constants to vmlinux.lds.h
alpha: no need to include asm/xchg.h twice
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
- new memblock_estimated_nr_free_pages() helper to replace
totalram_pages() which is less accurate when
CONFIG_DEFERRED_STRUCT_PAGE_INIT is set
- fixes for memblock tests
* tag 'memblock-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
s390/mm: get estimated free pages by memblock api
kernel/fork.c: get estimated free pages by memblock api
mm/memblock: introduce a new helper memblock_estimated_nr_free_pages()
memblock test: fix implicit declaration of function 'strscpy'
memblock test: fix implicit declaration of function 'isspace'
memblock test: fix implicit declaration of function 'memparse'
memblock test: add the definition of __setup()
memblock test: fix implicit declaration of function 'virt_to_phys'
tools/testing: abstract two init.h into common include directory
memblock tests: include export.h in linkage.h as kernel dose
memblock tests: include memory_hotplug.h in mmzone.h as kernel dose
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- Disable buggy p10 aes-gcm code on powerpc
- Fix module aliases in paes_s390
- Fix buffer overread in caam
* tag 'v6.12-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: powerpc/p10-aes-gcm - Disable CRYPTO_AES_GCM_P10
crypto: s390/paes - Fix module aliases
crypto: caam - Pad SG length when allocating hash edesc
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Wait for device readiness after reset by polling Vendor ID and
looking for Configuration RRS instead of polling the Command
register and looking for non-error completions, to avoid hardware
retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)
- Rename CRS Completion Status to RRS ('Request Retry Status') to
match PCIe r6.0 spec usage (Bjorn Helgaas)
- Clear LBMS bit after a manual link retrain so we don't try to
retrain a link when there's no downstream device anymore (Maciej W.
Rozycki)
- Revert to the original link speed after retraining fails instead of
leaving it restricted to 2.5GT/s, so a future device has a chance
to use higher speeds (Maciej W. Rozycki)
- Wait for each level of downstream bus, not just the first, to
become accessible before restoring devices on that bus (Ilpo
Järvinen)
- Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
without having to stomp on the core's pdev->dev.groups (Lukas
Wunner)
Driver binding:
- Export pcim_request_region(), a managed counterpart of
pci_request_region(), for use by drivers (Philipp Stanner)
- Export pcim_iomap_region() and deprecate pcim_iomap_regions()
(Philipp Stanner)
- Request the PCI BAR used by xboxvideo (Philipp Stanner)
- Request and map drm/ast BARs with pcim_iomap_region() (Philipp
Stanner)
MSI:
- Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
single IRQ line and cannot set the affinity of each MSI to a
specific CPU core (Marek Vasut)
- Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
warnings (Marek Vasut)
Power management:
- Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
Dybcio)
PCI device hotplug:
- Remove unnecessary hpc_ops struct from shpchp (ngn)
- Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
(weiyufeng)
Virtualization:
- Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)
- Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
but does provide ACS-like features (Subramanian Ananthanarayanan)
IOMMU:
- Add function 0 DMA alias quirk for Glenfly Arise audio function,
which uses the function 0 Requester ID (WangYuli)
NPEM:
- Add Native PCIe Enclosure Management (NPEM) support for sysfs
control of NVMe RAID storage indicators (ok/fail/locate/
rebuild/etc) (Mariusz Tkaczyk)
- Add support for the ACPI _DSM PCIe SSD status LED management, which
is functionally similar to NPEM but mediated by platform firmware
(Mariusz Tkaczyk)
Device trees:
- Drop minItems and maxItems from ranges in PCI generic host binding
since host bridges may have several MMIO and I/O port apertures
(Frank Li)
- Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
clocks (Krzysztof Kozlowski)
Altera PCIe controller driver:
- Convert altera DT bindings from text to YAML (Matthew Gerlach)
- Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
thing and is what other drivers use (Jinjie Ruan)
Broadcom STB PCIe controller driver:
- Add DT binding maxItems for reset controllers (Jim Quinlan)
- Use the 'bridge' reset method if described in the DT (Jim Quinlan)
- Use the 'swinit' reset method if described in the DT (Jim Quinlan)
- Add 'has_phy' so the existence of a 'rescal' reset controller
doesn't imply software control of it (Jim Quinlan)
- Add support for many inbound DMA windows (Jim Quinlan)
- Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
families of multiple similar devices (Jim Quinlan)
- Add Broadcom 7712 DT description and driver support (Jim Quinlan)
- Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
maintainability (Bjorn Helgaas)
Freescale i.MX6 PCIe controller driver:
- Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
(Richard Zhu)
- Fix a code restructuring error that caused i.MX8MM and i.MX8MP
Endpoints to fail to establish link (Richard Zhu)
- Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
outbound alignment requirement (Richard Zhu)
- Call phy_power_off() in the .probe() error path (Frank Li)
- Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
supported (Frank Li)
- Manage Refclk by using SoC-specific callbacks instead of switch
statements (Frank Li)
- Manage core reset by using SoC-specific callbacks instead of switch
statements (Frank Li)
- Expand comments for erratum ERR010728 workaround (Frank Li)
- Use generic PHY APIs to configure mode, speed, and submode, which
is harmless for devices that implement their own internal PHY
management and don't set the generic imx_pcie->phy (Frank Li)
- Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
Root Complex support (Richard Zhu)
Freescale Layerscape PCIe controller driver:
- Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
fsl,lx2160ar2-pcie (Frank Li)
- Add layerscape-pcie DT binding deprecated 'num-viewport' property
to address a DT checker warning (Frank Li)
- Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
(Frank Li)
Loongson PCIe controller driver:
- Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
(Huacai Chen)
Marvell Aardvark PCIe controller driver:
- Fix issue with emulating Configuration RRS for two-byte reads of
Vendor ID; previously it only worked for four-byte reads (Bjorn
Helgaas)
MediaTek PCIe Gen3 controller driver:
- Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
types (Lorenzo Bianconi)
- Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)
- Add DT and driver support for Airoha EN7581 PCIe controller
(Lorenzo Bianconi)
Qualcomm PCIe controller driver:
- Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
Ansari)
- Add back DT 'vddpe-3v3-supply', which was incorrectly removed
earlier (Johan Hovold)
- Drop endpoint redundant masking of global IRQ events (Manivannan
Sadhasivam)
- Clarify unknown global IRQ message and only log it once to avoid a
flood (Manivannan Sadhasivam)
- Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
Sadhasivam)
- Assign PCI domain number for endpoint controllers (Manivannan
Sadhasivam)
- Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
endpoint controller (Manivannan Sadhasivam)
- Add global SPI interrupt for PCIe link events to DT binding
(Manivannan Sadhasivam)
- Add global RC interrupt handler to handle 'Link up' events and
automatically enumerate hot-added devices (Manivannan Sadhasivam)
- Avoid mirroring of DBI and iATU register space so it doesn't
overlap BAR MMIO space (Prudhvi Yarlagadda)
- Enable controller resources like PHY only after PERST# is
deasserted to partially avoid the problem that the endpoint SoC
crashes when accessing things when Refclk is absent (Manivannan
Sadhasivam)
- Add 16.0 GT/s equalization and RX lane margining settings (Shashank
Babu Chinta Venkata)
- Pass domain number to pci_bus_release_domain_nr() explicitly to
avoid a NULL pointer dereference (Manivannan Sadhasivam)
Renesas R-Car PCIe controller driver:
- Make the read-only const array 'check_addr' static (Colin Ian King)
- Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
(Yoshihiro Shimoda)
TI DRA7xx PCIe controller driver:
- Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
handler is NULL (Siddharth Vadapalli)
- Handle IRQ request errors during root port and endpoint probe
(Siddharth Vadapalli)
TI J721E PCIe driver:
- Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
Vadapalli)
- Extract the cadence link setup from cdns_pcie_host_setup() so link
setup can be done separately during resume (Thomas Richard)
- Add T_PERST_CLK_US definition for the mandatory delay between
Refclk becoming stable and PERST# being deasserted (Thomas Richard)
- Add j721e suspend and resume support (Théo Lebrun)
TI Keystone PCIe controller driver:
- Fix NULL pointer checking when applying MRRS limitation quirk for
AM65x SR 1.0 Errata #i2037 (Dan Carpenter)
Xilinx NWL PCIe controller driver:
- Fix off-by-one error in INTx IRQ handler that caused INTx
interrupts to be lost or delivered as the wrong interrupt (Sean
Anderson)
- Rate-limit misc interrupt messages (Sean Anderson)
- Turn off the clock on probe failure and device removal (Sean
Anderson)
- Add DT binding and driver support for enabling/disabling PHYs (Sean
Anderson)
- Add PCIe phy bindings for the ZCU102 (Sean Anderson)
Xilinx XDMA PCIe controller driver:
- Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
binding and xilinx-dma-pl driver (Thippeswamy Havalige)
Miscellaneous:
- Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)
- Fix minor kerneldoc issues and typos (Bjorn Helgaas)
- Use PCI_DEVID() macro in aer_inject() instead of open-coding it
(Jinjie Ruan)
- Check pcie_find_root_port() return in x86 fixups to avoid NULL
pointer dereferences (Samasth Norway Ananda)
- Make pci_bus_type constant (Kunwu Chan)
- Remove unused declarations of __pci_pme_wakeup() and
pci_vpd_release() (Yue Haibing)
- Remove any leftover .*.cmd files with make clean (zhang jiao)
- Remove unused BILLION macro (zhang jiao)"
* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
PCI: Fix typos
dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
tools: PCI: Remove unused BILLION macro
tools: PCI: Remove .*.cmd files with make clean
PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
PCI: dra7xx: Fix error handling when IRQ request fails in probe
PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
PCI: qcom: Add RX lane margining settings for 16.0 GT/s
PCI: qcom: Add equalization settings for 16.0 GT/s
PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
PCI: Mark Creative Labs EMU20k2 INTx masking as broken
dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
dt-bindings: PCI: altera: msi: Convert to YAML
PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
PCI: Rename CRS Completion Status to RRS
PCI: aardvark: Correct Configuration RRS checking
PCI: Wait for device readiness with Configuration RRS
PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
...
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Replace the alternative branch with a larger alternative that contains
both paths. That way the two paths are closer together and it is easier
to change both paths if the need should arise.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Use SYM_DATA_START_LOCAL()/SYM_DATA_END() in vgetrandom-chacha.S so
that the constants end up in an object with correct size:
readelf -Ws vgetrandom-chacha.o
Num: Value Size Type Bind Vis Ndx Name
...
5: 0000000000000000 32 OBJECT LOCAL DEFAULT 5 chacha20_constants
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Use the macros SYM_FUNC_START() and SYM_FUNC_END() to annotate the
functions in assembly.
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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