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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 11:33:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-07 11:33:15 -0700
commite306e3be1cbe5b11d0f8a53a557c205cf27e4979 (patch)
tree0c872d9513794f48b80bab8d32e6dd7e6d5fbb26 /Documentation
parent7f0d32e0c1a7a23216a0f2694ec841f60e9dddfd (diff)
parent8b63c998b31c69fff2c8c8c7e543e3142d9eea71 (diff)
Merge tag 'stable/for-linus-3.17-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen updates from David Vrabel: - remove unused V2 grant table support - note that Konrad is xen-blkkback/front maintainer - add 'xen_nopv' option to disable PV extentions for x86 HVM guests - misc minor cleanups * tag 'stable/for-linus-3.17-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen-pciback: Document the 'quirks' sysfs file xen/pciback: Fix error return code in xen_pcibk_attach() xen/events: drop negativity check of unsigned parameter xen/setup: Remove Identity Map Debug Message xen/events/fifo: remove a unecessary use of BM() xen/events/fifo: ensure all bitops are properly aligned even on x86 xen/events/fifo: reset control block and local HEADs on resume xen/arm: use BUG_ON xen/grant-table: remove support for V2 tables x86/xen: safely map and unmap grant frames when in atomic context MAINTAINERS: Make me the Xen block subsystem (front and back) maintainer xen: Introduce 'xen_nopv' to disable PV extensions for HVM guests.
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-driver-pciback13
-rw-r--r--Documentation/kernel-parameters.txt4
2 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-pciback b/Documentation/ABI/testing/sysfs-driver-pciback
new file mode 100644
index 000000000000..6a733bfa37e6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-pciback
@@ -0,0 +1,13 @@
+What: /sys/bus/pci/drivers/pciback/quirks
+Date: Oct 2011
+KernelVersion: 3.1
+Contact: xen-devel@lists.xenproject.org
+Description:
+ If the permissive attribute is set, then writing a string in
+ the format of DDDD:BB:DD.F-REG:SIZE:MASK will allow the guest
+ to write and read from the PCI device. That is Domain:Bus:
+ Device.Function-Register:Size:Mask (Domain is optional).
+ For example:
+ #echo 00:19.0-E0:2:FF > /sys/bus/pci/drivers/pciback/quirks
+ will allow the guest to read and write to the configuration
+ register 0x0E.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 664fd887cc37..a8eb6afce6a4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3745,6 +3745,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Disables the ticketlock slowpath using Xen PV
optimizations.
+ xen_nopv [X86]
+ Disables the PV optimizations forcing the HVM guest to
+ run as generic HVM guest with no PV drivers.
+
xirc2ps_cs= [NET,PCMCIA]
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]