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cpuid: Add helper function for cpuid(1) functions

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This patch introduces 3 helper function for cpuid(1) :

1. cpu_get_cpuid() -> to get processor id (from cpuid.eax)
2. cpu_get_feature_flags_ecx -> to get processor feature flag (from cpuid.ecx)
3. cpu_get_feature_flags_edx -> to get processor feature flag (from cpuid.edx)

Above 3 helper functions are targeted to replace majority of cpuid(1)
references.

Change-Id: Ib96a7c79dadb1feff0b8d58aa408b355fbb3bc50
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/30123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Subrata Banik
2018-12-10 14:11:35 +05:30
parent e3110b8620
commit 53b08c347f
21 changed files with 142 additions and 86 deletions
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8
src/soc/intel/common/block/vmx/vmx.c
View File

@@ -11,8 +11,10 @@
* GNU General Public License for more details.
*/
#include <arch/cpu.h>
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <intelblocks/cpulib.h>
#include <intelblocks/msr.h>
#include <intelblocks/vmx.h>
#include <soc/cpu.h>
@@ -46,11 +48,11 @@ static int soc_vmx_enabled(void)
void vmx_configure(void *unused)
{
msr_t msr;
struct cpuid_result regs;
uint32_t feature_flag;
regs = cpuid(1);
feature_flag = cpu_get_feature_flags_ecx();
if (!soc_vmx_enabled() || !(regs.ecx & CPUID_VMX)) {
if (!soc_vmx_enabled() || !(feature_flag & CPUID_VMX)) {
printk(BIOS_ERR, "VMX: pre-conditions not met\n");
return;
}