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| author |   Boris Ostrovsky <boris.ostrovsky@oracle.com> | 2017-05-03 16:20:51 -0400 |
|---|---|---|
| committer |   Juergen Gross <jgross@suse.com> | 2017-05-05 10:43:15 +0200 |
| commit | d162809f85b4f54ef075517ffa2f3d02e55d5a53 (patch) | |
| tree | 3305107f1087882cb77f1db1c713cdfe24a44154 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | x86/xen: fix xsave capability setting (diff) | |
| download | linux-rng-d162809f85b4f54ef075517ffa2f3d02e55d5a53.tar.xz linux-rng-d162809f85b4f54ef075517ffa2f3d02e55d5a53.zip | |
xen/x86: Do not call xen_init_time_ops() until shared_info is initialized
Routines that are set by xen_init_time_ops() use shared_info's
pvclock_vcpu_time_info area. This area is not properly available until
shared_info is mapped in xen_setup_shared_info().
This became especially problematic due to commit dd759d93f4dd ("x86/timers:
Add simple udelay calibration") where we end up reading tsc_to_system_mul
from xen_dummy_shared_info (i.e. getting zero value) and then trying
to divide by it in pvclock_tsc_khz().
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions