grub2/0196-tsc-Change-default-tsc-calibration-method-to-pmtimer.patch
Peter Jones 448fa56b6a Various bugfixes
- Make the release be 37 since 36 is the last one we actually built
- Squash down the changelog for that as well
- Fix some TPM errors on 32-bit (hdegoede)
- More fixups to avoid compiler changes (pjones)
- Put lsmmap into the EFI builds (pjones)
  Related: rhbz#1572126

Signed-off-by: Peter Jones <pjones@redhat.com>
2018-06-19 10:39:51 -04:00

32 lines
1.4 KiB
Diff

From 2e5b957292d3f313d48bded25e8ca83468326c5b Mon Sep 17 00:00:00 2001
From: "David E. Box" <david.e.box@linux.intel.com>
Date: Fri, 15 Sep 2017 15:37:05 -0700
Subject: [PATCH 196/246] tsc: Change default tsc calibration method to pmtimer
on EFI systems
On efi systems, make pmtimer based tsc calibration the default over the
pit. This prevents Grub from hanging on Intel SoC systems that power gate
the pit.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.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 2e85289d848..f266eb13185 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_pmtimer () || grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode());
#elif defined (GRUB_MACHINE_COREBOOT)
(void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit () || calibrate_tsc_hardcode());
#else
--
2.17.1