soc/amd/common/block/acpi/ivrs: zero-initialize ivhd_hpet struct
Zero-initialize the ivhd_hpet struct right at the beginning of the
ivhd_describe_hpet function to make sure that the whole struct is in a
defined state.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: If4d3563c485eed4a7cb0526a62f7b6c80f763bfd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76074
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/src/soc/amd/common/block/acpi/ivrs.c b/src/soc/amd/common/block/acpi/ivrs.c
index 7afabf8..d2080e9 100644
--- a/src/soc/amd/common/block/acpi/ivrs.c
+++ b/src/soc/amd/common/block/acpi/ivrs.c
@@ -36,10 +36,9 @@
static unsigned long ivhd_describe_hpet(unsigned long current, uint8_t hndl, uint16_t src_devid)
{
ivrs_ivhd_special_t *ivhd_hpet = (ivrs_ivhd_special_t *)current;
+ memset(ivhd_hpet, 0, sizeof(*ivhd_hpet));
ivhd_hpet->type = IVHD_DEV_8_BYTE_EXT_SPECIAL_DEV;
- ivhd_hpet->reserved = 0x0000;
- ivhd_hpet->dte_setting = 0x00;
ivhd_hpet->handle = hndl;
ivhd_hpet->source_dev_id = src_devid; /* function 0 of FCH PCI device */
ivhd_hpet->variety = IVHD_SPECIAL_DEV_HPET;