diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2017-05-31 17:52:03 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-06-04 21:55:53 +0200 |
| commit | bd9240a18edfbfa72e957fc2ba831cf1f13ea073 (patch) | |
| tree | d3a98afdc40e2c4c071e44751f8f095a4d19a6c3 /arch/x86/kernel/tsc_sync.c | |
| parent | c6e9f42bbeecbc10cd4fbcca474b5859aba1de67 (diff) | |
x86/apic: Add TSC_DEADLINE quirk due to errata
Due to errata it is possible for the TSC_DEADLINE timer to misbehave
after using TSC_ADJUST. A microcode update is available to fix this
situation.
Avoid using the TSC_DEADLINE timer if it is affected by this issue and
report the required microcode version.
[ tglx: Renamed function to apic_check_deadline_errata() ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: kevin.b.stanton@intel.com
Link: http://lkml.kernel.org/r/20170531155306.050849877@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/tsc_sync.c')
0 files changed, 0 insertions, 0 deletions