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security/intel/txt: use mca_get_bank_count() 

Use the common mca_get_bank_count function instead of open-coding the
functionality to get the MCA bank number.

Change-Id: I28244c975ee34d36d0b44df092d4a62a01c3c79c
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56187
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This commit is contained in:
Felix Held 2021-07-09 23:05:21 +02:00
parent 46e6a5883e
commit 7cf3787a53
1 changed files with 1 additions and 2 deletions
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3
src/security/intel/txt/common.c
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@ -481,8 +481,7 @@ bool intel_txt_prepare_txt_env(void)
* Make sure there are no uncorrectable MCE errors. * Make sure there are no uncorrectable MCE errors.
* Intel 64 and IA-32 Architectures Software Developer Manuals Vol 2D * Intel 64 and IA-32 Architectures Software Developer Manuals Vol 2D
*/ */
msr = rdmsr(IA32_MCG_CAP); size_t max_mc_msr = mca_get_bank_count();
size_t max_mc_msr = msr.lo & MCA_BANKS_MASK;
for (size_t i = 0; i < max_mc_msr; i++) { for (size_t i = 0; i < max_mc_msr; i++) {
msr = rdmsr(IA32_MC0_STATUS + 4 * i); msr = rdmsr(IA32_MC0_STATUS + 4 * i);
if (!(msr.hi & MCA_STATUS_HI_UC)) if (!(msr.hi & MCA_STATUS_HI_UC))