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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-31 08:45:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-31 08:45:16 -0700 |
| commit | 4290d5b9ca018be10c7582524f7500df731bfab0 (patch) | |
| tree | 5ac20c699cfd021272197622d2bcdc8ce00ac1eb /drivers/xen | |
| parent | 01f6543a0dacd8d9901a130b26e9fec080c1f276 (diff) | |
| parent | 6d3c8ce012cefbdd73a3bba3c7f9a44af1c6a0bb (diff) | |
| download | linux-4290d5b9ca018be10c7582524f7500df731bfab0.tar.bz2 | |
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
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index f2088838f690..5b471889d723 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -402,10 +402,19 @@ static ssize_t modalias_show(struct device *dev, } static DEVICE_ATTR_RO(modalias); +static ssize_t state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%s\n", + xenbus_strstate(to_xenbus_device(dev)->state)); +} +static DEVICE_ATTR_RO(state); + static struct attribute *xenbus_dev_attrs[] = { &dev_attr_nodename.attr, &dev_attr_devtype.attr, &dev_attr_modalias.attr, + &dev_attr_state.attr, NULL, }; |