| commit | edbd662b2426726b132801e1b1db21ee2881a42e | |
| author | Alok Kataria <akataria@vmware.com> | |
| Mon, 2 Aug 2010 23:10:37 +0000 (2 16:10 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Fri, 13 Aug 2010 20:27:10 +0000 (13 13:27 -0700) | ||
| tree | 03617a4a15313a65dcce76f78de620be22dbffef | treesnapshot (tar.gz zip) |
| parent | 90e53aa05726d125600b863b0f2754699ae514db | commitdiff |
x86, vmware: Preset lpj values when on VMware.
commit 9f242dc10e0c3c1eb32d8c83c18650a35fd7f80d upstream.
When running on VMware's platform, we have seen situations where
the AP's try to calibrate the lpj values and fail to get good calibration
runs becasue of timing issues. As a result delays don't work correctly
on all cpus.
The solutions is to set preset_lpj value based on the current tsc frequency
value. This is similar to what KVM does as well.
Signed-off-by: Alok N Kataria <akataria@vmware.com>
LKML-Reference: <1280790637.14933.29.camel@ank32.eng.vmware.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 9f242dc10e0c3c1eb32d8c83c18650a35fd7f80d upstream.
When running on VMware's platform, we have seen situations where
the AP's try to calibrate the lpj values and fail to get good calibration
runs becasue of timing issues. As a result delays don't work correctly
on all cpus.
The solutions is to set preset_lpj value based on the current tsc frequency
value. This is similar to what KVM does as well.
Signed-off-by: Alok N Kataria <akataria@vmware.com>
LKML-Reference: <1280790637.14933.29.camel@ank32.eng.vmware.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| arch/x86/kernel/cpu/vmware.c | diffblobblamehistory |