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ce942da8e7
The overflow was in fact impossible in practice because the int parameter is only ever 0, 1, or 2, but GCC couldn't prove that.
35 lines
1.6 KiB
Diff
35 lines
1.6 KiB
Diff
From 8b643f33f749ba56ba06a745a571bb6b76dbf3dd Mon Sep 17 00:00:00 2001
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From: "David E. Box" <david.e.box@linux.intel.com>
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Date: Fri, 15 Sep 2017 15:37:05 -0700
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Subject: tsc: Change default tsc calibration method to pmtimer on EFI systems
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On efi systems, make pmtimer based tsc calibration the default over the
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pit. This prevents Grub from hanging on Intel SoC systems that power gate
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the pit.
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Signed-off-by: David E. Box <david.e.box@linux.intel.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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Origin: upstream, https://git.savannah.gnu.org/cgit/grub.git/commit/?id=446794de8da4329ea532cbee4ca877bcafd0e534
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Bug-Debian: https://bugs.debian.org/883193
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Last-Update: 2017-12-01
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Patch-Name: tsc_efi_default_to_pmtimer.patch
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---
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grub-core/kern/i386/tsc.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/grub-core/kern/i386/tsc.c b/grub-core/kern/i386/tsc.c
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index 2e85289d8..f266eb131 100644
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--- a/grub-core/kern/i386/tsc.c
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+++ b/grub-core/kern/i386/tsc.c
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@@ -68,7 +68,7 @@ grub_tsc_init (void)
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#ifdef GRUB_MACHINE_XEN
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(void) (grub_tsc_calibrate_from_xen () || calibrate_tsc_hardcode());
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#elif defined (GRUB_MACHINE_EFI)
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- (void) (grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode());
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+ (void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode());
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#elif defined (GRUB_MACHINE_COREBOOT)
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(void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit () || calibrate_tsc_hardcode());
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#else
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