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xen: fixes for 4.19-rc2

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Merge tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - minor cleanup avoiding a warning when building with new gcc

 - a patch to add a new sysfs node for Xen frontend/backend drivers to
   make it easier to obtain the state of a pv device

 - two fixes for 32-bit pv-guests to avoid intermediate L1TF vulnerable
   PTEs

* tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: remove redundant variable save_pud
  xen: export device state to sysfs
  x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear
  x86/xen: don't write ptes directly in 32-bit PV guests
This commit is contained in:
Linus Torvalds 2018-08-31 08:45:16 -07:00
commit 4290d5b9ca
4 changed files with 24 additions and 10 deletions
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9
Documentation/ABI/stable/sysfs-bus-xen-backend
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@ -73,3 +73,12 @@ KernelVersion: 3.0
Contact: Konrad Rzeszutek Wilk <[email protected]>
Description:
Number of sectors written by the frontend.
What: /sys/bus/xen-backend/devices/*/state
Date: August 2018
KernelVersion: 4.19
Contact: Joe Jin <[email protected]>
Description:
The state of the device. One of: 'Unknown',
'Initialising', 'Initialised', 'Connected', 'Closing',
'Closed', 'Reconfiguring', 'Reconfigured'.