Dear David,
Am Mittwoch, den 06.09.2017, 13:20 -0700 schrieb David E. Box: > On efi systems, make efi based tsc calibration the default, followed by > the pmtimer before using the pit. This prevents Grub boot failure on > newer x86 systems that power gate the pit. Could you please be specific, what “newer x86 systems” are? Also, what is the “GRUB boot failure”? A hang? What about older EFI x86 systems? Is there a chance, that they hang now? > Signed-off-by: David E. Box <david.e....@linux.intel.com> > --- > grub-core/kern/i386/tsc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/grub-core/kern/i386/tsc.c b/grub-core/kern/i386/tsc.c > index 2e85289d8..de4057ddb 100644 > --- a/grub-core/kern/i386/tsc.c > +++ b/grub-core/kern/i386/tsc.c > @@ -68,7 +68,7 @@ grub_tsc_init (void) > #ifdef GRUB_MACHINE_XEN > (void) (grub_tsc_calibrate_from_xen () || calibrate_tsc_hardcode()); > #elif defined (GRUB_MACHINE_EFI) > - (void) (grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_pmtimer > () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode()); > + (void) (grub_tsc_calibrate_from_efi () || grub_tsc_calibrate_from_pmtimer > () || grub_tsc_calibrate_from_pit () || calibrate_tsc_hardcode()); > #elif defined (GRUB_MACHINE_COREBOOT) > (void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit > () || calibrate_tsc_hardcode()); > #else Thanks, Paul
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