menuconfig SAMPLES bool "Sample kernel code" help You can build and test sample kernel code here. if SAMPLES config SAMPLE_TRACE_EVENTS tristate "Build trace_events examples -- loadable modules only" depends on EVENT_TRACING && m help This build trace event example modules. config SAMPLE_TRACE_PRINTK tristate "Build trace_printk module - tests various trace_printk formats" depends on EVENT_TRACING && m help This builds a module that calls trace_printk() and can be used to test various trace_printk() calls from a module. config SAMPLE_KOBJECT tristate "Build kobject examples -- loadable modules only" depends on m help This config option will allow you to build a number of different kobject sample modules showing how to use kobjects, ksets, and ktypes properly. If in doubt, say "N" here. config SAMPLE_KPROBES tristate "Build kprobes examples -- loadable modules only" depends on KPROBES && m help This build several kprobes example modules. config SAMPLE_KRETPROBES tristate "Build kretprobes example -- loadable modules only" default m depends on SAMPLE_KPROBES && KRETPROBES config SAMPLE_HW_BREAKPOINT tristate "Build kernel hardware breakpoint examples -- loadable module only" depends on HAVE_HW_BREAKPOINT && m help This builds kernel hardware breakpoint example modules. config SAMPLE_KFIFO tristate "Build kfifo examples -- loadable modules only" depends on m help This config option will allow you to build a number of different kfifo sample modules showing how to use the generic kfifo API. If in doubt, say "N" here. config SAMPLE_KDB tristate "Build kdb command example -- loadable modules only" depends on KGDB_KDB && m help Build an example of how to dynamically add the hello command to the kdb shell. config SAMPLE_RPMSG_CLIENT tristate "Build rpmsg client sample -- loadable modules only" depends on RPMSG && m help Build an rpmsg client sample driver, which demonstrates how to communicate with an AMP-configured remote processor over the rpmsg bus. config SAMPLE_LIVEPATCH tristate "Build live patching sample -- loadable modules only" depends on LIVEPATCH && m help Builds a sample live patch that replaces the procfs handler for /proc/cmdline to print "this has been live patched". config SAMPLE_CONFIGFS tristate "Build configfs patching sample -- loadable modules only" depends on CONFIGFS_FS && m help Builds a sample configfs interface. config SAMPLE_CONNECTOR tristate "Build connector sample -- loadable modules only" depends on CONNECTOR && m help When enabled, this builds both a sample kernel module for the connector interface and a user space tool to communicate with it. See also Documentation/connector/connector.txt config SAMPLE_SECCOMP tristate "Build seccomp sample code -- loadable modules only" depends on SECCOMP_FILTER && m help Build samples of seccomp filters using various methods of BPF filter construction. config SAMPLE_BLACKFIN_GPTIMERS tristate "Build blackfin gptimers sample code -- loadable modules only" depends on BLACKFIN && BFIN_GPTIMERS && m help Build samples of blackfin gptimers sample module. config SAMPLE_VFIO_MDEV_MTTY tristate "Build VFIO mtty example mediated device sample code -- loadable modules only" depends on VFIO_MDEV_DEVICE && m help Build a virtual tty sample driver for use as a VFIO mediated device endif # SAMPLES 15c25e92'>auth_gss/Makefile
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-01 17:45:02 +0000
committerIngo Molnar <mingo@kernel.org>2017-02-01 21:17:49 +0100
commitc8f325a59cfc718d13a50fbc746ed9b415c25e92 (patch)
treed53fbdac9d0781e39a13b2ac6b2bd258cf3b4140 /net/sunrpc/auth_gss/Makefile
parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/sunrpc/auth_gss/Makefile')