# # README for usbip-utils # # Copyright (C) 2011 matt mooney # 2005-2008 Takahiro Hirofuchi [Requirements] - USB/IP device drivers Found in the staging directory of the Linux kernel. - libudev >= 2.0 libudev library - libwrap0-dev tcp wrapper library - gcc >= 4.0 - libtool, automake >= 1.9, autoconf >= 2.5.0, pkg-config [Optional] - hwdata Contains USB device identification data. [Install] 0. Generate configuration scripts. $ ./autogen.sh 1. Compile & install the userspace utilities. $ ./configure [--with-tcp-wrappers=no] [--with-usbids-dir=] $ make install 2. Compile & install USB/IP drivers. [Usage] server:# (Physically attach your USB device.) server:# insmod usbip-core.ko server:# insmod usbip-host.ko server:# usbipd -D - Start usbip daemon. server:# usbip list -l - List driver assignments for USB devices. server:# usbip bind --busid 1-2 - Bind usbip-host.ko to the device with busid 1-2. - The USB device 1-2 is now exportable to other hosts! - Use `usbip unbind --busid 1-2' to stop exporting the device. client:# insmod usbip-core.ko client:# insmod vhci-hcd.ko client:# usbip list --remote - List exported USB devices on the . client:# usbip attach --remote --busid 1-2 - Connect the remote USB device. client:# usbip port - Show virtual port status. client:# usbip detach --port - Detach the USB device. [Example] --------------------------- SERVER SIDE --------------------------- Physically attach your USB devices to this host. trois:# insmod path/to/usbip-core.ko trois:# insmod path/to/usbip-host.ko trois:# usbipd -D In another terminal, let's look up what USB devices are physically attached to this host. trois:# usbip list -l Local USB devices ================= - busid 1-1 (05a9:a511) 1-1:1.0 -> ov511 - busid 3-2 (0711:0902) 3-2:1.0 -> none - busid 3-3.1 (08bb:2702) 3-3.1:1.0 -> snd-usb-audio 3-3.1:1.1 -> snd-usb-audio - busid 3-3.2 (04bb:0206) 3-3.2:1.0 -> usb-storage - busid 3-3 (0409:0058) 3-3:1.0 -> hub - busid 4-1 (046d:08b2) 4-1:1.0 -> none 4-1:1.1 -> none 4-1:1.2 -> none - busid 5-2 (058f:9254) 5-2:1.0 -> hub A USB storage device of busid 3-3.2 is now bound to the usb-storage driver. To export this device, we first mark the device as "exportable"; the device is bound to the usbip-host driver. Please remember you can not export a USB hub. Mark the device of busid 3-3.2 as exportable: trois:# usbip --debug bind --busid 3-3.2 ... usbip debug: usbip_bind.c:162:[unbind_other] 3-3.2:1.0 -> usb-storage ... bind device on busid 3-3.2: complete trois:# usbip list -l Local USB devices ================= ... - busid 3-3.2 (04bb:0206) 3-3.2:1.0 -> usbip-host ... --------------------------- CLIENT SIDE --------------------------- First, let's list available remote devices that are marked as exportable on the host. deux:# insmod path/to/usbip-core.ko deux:# insmod path/to/vhci-hcd.ko deux:# usbip list --remote 10.0.0.3 Exportable USB devices ====================== - 10.0.0.3 1-1: Prolific Technology, Inc. : unknown product (067b:3507) : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-1 : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00) : 0 - Mass Storage / SCSI / Bulk (Zip) (08/06/50) 1-2.2.1: Apple Computer, Inc. : unknown product (05ac:0203) : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.1 : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00) : 0 - Human Interface Devices / Boot Interface Subclass / Keyboard (03/01/01) 1-2.2.3: OmniVision Technologies, Inc. : OV511+ WebCam (05a9:a511) : /sys/devices/pci0000:00/0000:00:1f.2/usb1/1-2/1-2.2/1-2.2.3 : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00) : 0 - Vendor Specific Class / unknown subclass / unknown protocol (ff/00/00) 3-1: Logitech, Inc. : QuickCam Pro 4000 (046d:08b2) : /sys/devices/pci0000:00/0000:00:1e.0/0000:02:0a.0/usb3/3-1 : (Defined at Interface level) / unknown subclass / unknown protocol (00/00/00) : 0 - Data / unknown subclass / unknown protocol (0a/ff/00) : 1 - Audio / Control Device / unknown protocol (01/01/00) : 2 - Audio / Streaming / unknown protocol (01/02/00) Attach a remote USB device: deux:# usbip attach --remote 10.0.0.3 --busid 1-1 port 0 attached Show the devices attached to this client: deux:# usbip port Port 00: at Full Speed(12Mbps) Prolific Technology, Inc. : unknown product (067b:3507) 6-1 -> usbip://10.0.0.3:3240/1-1 (remote bus/dev 001/004) 6-1:1.0 used by usb-storage /sys/class/scsi_device/0:0:0:0/device /sys/class/scsi_host/host0/device /sys/block/sda/device Detach the imported device: deux:# usbip detach --port 0 port 0 detached [Checklist] - See 'Debug Tips' on the project wiki. - http://usbip.wiki.sourceforge.net/how-to-debug-usbip - usbip-host.ko must be bound to the target device. - See /proc/bus/usb/devices and find "Driver=..." lines of the device. - Shutdown firewall. - usbip now uses TCP port 3240. - Disable SELinux. - Check the kernel and daemon messages. [Contact] Mailing List: linux-usb@vger.kernel.org xt.git/commit/include/uapi/scsi/fc?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>883af14e67e8b8702b5560aa64c888c0cd0bd66c (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 'include/uapi/scsi/fc')