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authorLubomir Rintel <lkundrak@v3.sk>2017-01-22 22:19:33 +0100
committerPhilipp Deppenwiese <zaolin.daisuki@gmail.com>2018-05-13 10:07:23 +0000
commit38686f15dd57745e24f100797db33a84e65f7ec7 (patch)
treedf3ff832875c99d86b284e8401bd8841c75ae117 /util/msrtool
parent199a23cd8ac32236b9112709a6910c4055c71932 (diff)
msrtool: add support for printing string values
The VIA CPUs allow setting the CPUID vendor, which is best read as a character string. Change-Id: I67f77ca75f7d77e47b3ba09bad904df5805e373a Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Reviewed-on: https://review.coreboot.org/18257 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'util/msrtool')
-rw-r--r--util/msrtool/msrtool.h4
-rw-r--r--util/msrtool/msrutils.c22
2 files changed, 25 insertions, 1 deletions
diff --git a/util/msrtool/msrtool.h b/util/msrtool/msrtool.h
index 93881e964c..1e923c4bfd 100644
--- a/util/msrtool/msrtool.h
+++ b/util/msrtool/msrtool.h
@@ -45,7 +45,8 @@ enum {
PRESENT_BIN,
PRESENT_OCT,
PRESENT_HEX,
- PRESENT_HEXDEC
+ PRESENT_HEXDEC,
+ PRESENT_STR,
} PresentTypes;
struct msr {
@@ -162,6 +163,7 @@ struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device);
/* msrutils.c */
void hexprint(FILE *f, const struct msr val, const uint8_t bits);
+void strprint(FILE *f, const struct msr val, const uint8_t bits);
int msr_eq(const struct msr a, const struct msr b);
struct msr msr_shl(const struct msr a, const uint8_t bits);
struct msr msr_shr(const struct msr a, const uint8_t bits);
diff --git a/util/msrtool/msrutils.c b/util/msrtool/msrutils.c
index 57a271d05d..1c6707e4c2 100644
--- a/util/msrtool/msrutils.c
+++ b/util/msrtool/msrutils.c
@@ -65,6 +65,9 @@ static void print_bitval(FILE *f, const struct msrbits *mb, const struct msr val
hexprint(f, val, mb->size);
fprintf(f, " %d", val.lo);
break;
+ case PRESENT_STR:
+ strprint(f, val, mb->size);
+ break;
}
if (mbv->text)
fprintf(f, ": %s", mbv->text);
@@ -106,6 +109,25 @@ void hexprint(FILE *f, const struct msr val, const uint8_t bits) {
fprintf(f, "0x%08x%08x", val.hi, val.lo);
}
+void strprint(FILE *f, const struct msr val, const uint8_t bits) {
+ if (bits > 56)
+ fputc(val.hi, f);
+ if (bits > 48)
+ fputc(val.hi >> 8, f);
+ if (bits > 40)
+ fputc(val.hi >> 16, f);
+ if (bits > 32)
+ fputc(val.hi >> 24, f);
+ if (bits > 24)
+ fputc(val.lo, f);
+ if (bits > 16)
+ fputc(val.lo >> 8, f);
+ if (bits > 8)
+ fputc(val.lo >> 16, f);
+ if (bits > 0)
+ fputc(val.lo >> 24, f);
+}
+
int msr_eq(const struct msr a, const struct msr b) {
return a.hi == b.hi && a.lo == b.lo;
}