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authorSubrata Banik <subrata.banik@intel.com>2018-12-10 14:11:35 +0530
committerSubrata Banik <subrata.banik@intel.com>2018-12-13 04:32:57 +0000
commit53b08c347f54970cf5f6ce35b8e1a1fe5f8a11f9 (patch)
treeb4eed19fbf1b9f35dfbdddcc43fc84469176ec59 /src/soc/intel/icelake/bootblock
parente3110b862071ae0797afb0688495315a7dd47739 (diff)
downloadcoreboot-53b08c347f54970cf5f6ce35b8e1a1fe5f8a11f9.tar.xz
cpuid: Add helper function for cpuid(1) functions
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>
Diffstat (limited to 'src/soc/intel/icelake/bootblock')
-rw-r--r--src/soc/intel/icelake/bootblock/report_platform.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/src/soc/intel/icelake/bootblock/report_platform.c b/src/soc/intel/icelake/bootblock/report_platform.c
index a5dcd7706c..05ae25fcc9 100644
--- a/src/soc/intel/icelake/bootblock/report_platform.c
+++ b/src/soc/intel/icelake/bootblock/report_platform.c
@@ -92,7 +92,7 @@ static uint16_t get_dev_id(pci_devfn_t dev)
static void report_cpu_info(void)
{
struct cpuid_result cpuidr;
- u32 i, index;
+ u32 i, index, cpu_id, cpu_feature_flag;
char cpu_string[50], *cpu_name = cpu_string; /* 48 bytes are reported */
int vt, txt, aes;
msr_t microcode_ver;
@@ -124,12 +124,12 @@ static void report_cpu_info(void)
microcode_ver.lo = 0;
microcode_ver.hi = 0;
wrmsr(BIOS_SIGN_ID, microcode_ver);
- cpuidr = cpuid(1);
+ cpu_id = cpu_get_cpuid();
microcode_ver = rdmsr(BIOS_SIGN_ID);
/* Look for string to match the name */
for (i = 0; i < ARRAY_SIZE(cpu_table); i++) {
- if (cpu_table[i].cpuid == cpuidr.eax) {
+ if (cpu_table[i].cpuid == cpu_id) {
cpu_type = cpu_table[i].name;
break;
}
@@ -137,11 +137,12 @@ static void report_cpu_info(void)
printk(BIOS_DEBUG, "CPU: %s\n", cpu_name);
printk(BIOS_DEBUG, "CPU: ID %x, %s, ucode: %08x\n",
- cpuidr.eax, cpu_type, microcode_ver.hi);
+ cpu_id, cpu_type, microcode_ver.hi);
- aes = (cpuidr.ecx & (1 << 25)) ? 1 : 0;
- txt = (cpuidr.ecx & (1 << 6)) ? 1 : 0;
- vt = (cpuidr.ecx & (1 << 5)) ? 1 : 0;
+ cpu_feature_flag = cpu_get_feature_flags_ecx();
+ aes = (cpu_feature_flag & CPUID_AES) ? 1 : 0;
+ txt = (cpu_feature_flag & CPUID_SMX) ? 1 : 0;
+ vt = (cpu_feature_flag & CPUID_VMX) ? 1 : 0;
printk(BIOS_DEBUG,
"CPU: AES %ssupported, TXT %ssupported, VT %ssupported\n",
mode[aes], mode[txt], mode[vt]);