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cpu/intel/common: Move intel_ht_sibling() to common folder

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Make intel_ht_sibling() available on all platforms.

Will be used in MP init to only write "Core" MSRs from one thread
on HyperThreading enabled platforms, to prevent race conditions and
resulting #GP if MSRs are written twice or are already locked.

Change-Id: I5d000b34ba4c6536dc866fbaf106b78e905e3e35
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35619
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Patrick Rudolph
2019-09-26 10:26:49 +02:00
committed by Patrick Georgi
parent 5adbc767f6
commit 6e079dc120
18 changed files with 66 additions and 32 deletions
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7
src/cpu/intel/common/common.h
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@ -15,6 +15,8 @@
#ifndef _CPU_INTEL_COMMON_H
#define _CPU_INTEL_COMMON_H
#include <stdint.h>
void set_vmx_and_lock(void);
void set_feature_ctrl_vmx(void);
void set_feature_ctrl_lock(void);
@ -27,4 +29,9 @@ void set_feature_ctrl_lock(void);
struct cppc_config;
void cpu_init_cppc_config(struct cppc_config *config, u32 version);
/*
* Returns true if it's not thread 0 on a hyperthreading enabled core.
*/
bool intel_ht_sibling(void);
#endif