netsniff-ng.git - A high-performance Linux networking toolkit

Age	Commit message (Expand)	Author	Files	Lines
2015-04-21	netsniff-ng: Delete rfmon mac80211 device in case of panic	Vadim Kochan	1	-0/+2
2014-04-22	conf: Use configuration file path from Makefile instead of hardcoded paths	Tobias Klauser	1	-1/+0
2013-07-30	build: reduce Extra contents to bare minimum	Daniel Borkmann	1	-0/+2
2013-07-11	build: refactor tool specific flags into <tool>/Makefile	Daniel Borkmann	1	-0/+5
2013-06-04	xutils: eliminate xutils, move rest to epoll2	Daniel Borkmann	1	-3/+1
2013-06-04	sock: add socket management functions	Daniel Borkmann	1	-0/+1
2013-06-04	xutils: break out string handling and locking	Daniel Borkmann	1	-0/+1
2013-05-13	staging: add mausezahn staging directory	Daniel Borkmann	2	-0/+70

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>

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