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Groups > linux.kernel > #1649844

[PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform

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This ensures that adjustments to x86_platform done by the hypervisor
setup is already respected by this simple calibration.

The current user of this, introduced by 1b5aeebf3a92 ("x86/earlyprintk:
Add support for earlyprintk via USB3 debug port"), comes much later
into play.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
 arch/x86/kernel/setup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0b4d3c686b1e..f81823695014 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -980,8 +980,6 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	x86_configure_nx();
 
-	simple_udelay_calibration();
-
 	parse_early_param();
 
 #ifdef CONFIG_MEMORY_HOTPLUG
@@ -1041,6 +1039,8 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	init_hypervisor_platform();
 
+	simple_udelay_calibration();
+
 	x86_init.resources.probe_roms();
 
 	/* after parse_early_param, so could debug it */

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[PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-24 20:10 +0200
  Re: [PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Lu Baolu <baolu.lu@linux.intel.com> - 2017-05-25 03:40 +0200
  [tip:x86/urgent] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform tip-bot for Jan Kiszka <tipbot@zytor.com> - 2017-05-26 14:10 +0200
  Re: [PATCH] x86/timers: Move simple_udelay_calibration past init_hypervisor_platform Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-05-27 03:40 +0200
    Re: [PATCH] x86/timers: Move simple_udelay_calibration past  init_hypervisor_platform Jan Kiszka <jan.kiszka@siemens.com> - 2017-05-28 18:50 +0200

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