config USB_ISP1760 tristate "NXP ISP 1760/1761 support" depends on USB || USB_GADGET help Say Y or M here if your system as an ISP1760 USB host controller or an ISP1761 USB dual-role controller. This driver does not support isochronous transfers or OTG. This USB controller is usually attached to a non-DMA-Master capable bus. NXP's eval kit brings this chip on PCI card where the chip itself is behind a PLB to simulate such a bus. To compile this driver as a module, choose M here: the module will be called isp1760. config USB_ISP1760_HCD bool config USB_ISP1761_UDC bool if USB_ISP1760 choice bool "ISP1760 Mode Selection" default USB_ISP1760_DUAL_ROLE if (USB && USB_GADGET) default USB_ISP1760_HOST_ROLE if (USB && !USB_GADGET) default USB_ISP1760_GADGET_ROLE if (!USB && USB_GADGET) config USB_ISP1760_HOST_ROLE bool "Host only mode" depends on USB=y || USB=USB_ISP1760 select USB_ISP1760_HCD help Select this if you want to use the ISP1760 in host mode only. The gadget function will be disabled. config USB_ISP1760_GADGET_ROLE bool "Gadget only mode" depends on USB_GADGET=y || USB_GADGET=USB_ISP1760 select USB_ISP1761_UDC help Select this if you want to use the ISP1760 in peripheral mode only. The host function will be disabled. config USB_ISP1760_DUAL_ROLE bool "Dual Role mode" depends on USB=y || USB=USB_ISP1760 depends on USB_GADGET=y || USB_GADGET=USB_ISP1760 select USB_ISP1760_HCD select USB_ISP1761_UDC help Select this if you want to use the ISP1760 in both host and peripheral modes. endchoice endif /'>summaryrefslogtreecommitdiff
path: root/fs/xfs/libxfs/xfs_defer.h
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authorJiri Kosina <jkosina@suse.cz>2017-01-27 22:25:52 +0000
committerIngo Molnar <mingo@kernel.org>2017-01-28 09:18:56 +0100
commitbf29bddf0417a4783da3b24e8c9e017ac649326f (patch)
tree54a05a4883b73f80e4e1d8c4b15750aa01c39932 /fs/xfs/libxfs/xfs_defer.h
parent883af14e67e8b8702b5560aa64c888c0cd0bd66c (diff)
x86/efi: Always map the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_defer.h')