upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-04-24 23:57:30 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Lower the bar for ACPI-fast on virtual machines. The current logic depends

Browse source 
on the fact that real hardware has almost fixed cost to read the ACPI timer.
It is virtually always false for hardware emulation and it makes no sense to
read it multiple times, which is already quite expensive for full emulation.
This commit is contained in:
Jung-uk Kim 2011-04-04 17:00:50 +00:00
parent 0a215cf2d8
commit d141bf6e2f
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
sys/dev/acpica/acpi_timer.c
View file

@ -327,14 +327,15 @@ acpi_timer_test()
}
intr_restore(s);
if (max - min > 2)
delta = max - min;
if (delta > 2 && vm_guest == VM_GUEST_NO)
n = 0;
else if (min < 0 || max == 0)
n = 0;
else
n = 1;
if (bootverbose)
printf(" %d/%d", n, max-min);
printf(" %d/%d", n, delta);
return (n);
}