diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/alderlake/romstage/fsp_params.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/romstage/fsp_params.c b/src/soc/intel/alderlake/romstage/fsp_params.c index be71a02c0a..121251e7de 100644 --- a/src/soc/intel/alderlake/romstage/fsp_params.c +++ b/src/soc/intel/alderlake/romstage/fsp_params.c @@ -3,6 +3,7 @@ #include <assert.h> #include <console/console.h> #include <cpu/x86/msr.h> +#include <cpu/intel/cpu_ids.h> #include <device/device.h> #include <fsp/util.h> #include <intelblocks/cpulib.h> @@ -259,6 +260,14 @@ static void fill_fspm_usb4_params(FSP_M_CONFIG *m_cfg, static void fill_fspm_vtd_params(FSP_M_CONFIG *m_cfg, const struct soc_intel_alderlake_config *config) { + const uint32_t cpuid = cpu_get_cpuid(); + + /* Disable VT-d for early silicon steppings as it results in a CPU hard hang */ + if (cpuid == CPUID_ALDERLAKE_A0 || cpuid == CPUID_ALDERLAKE_A1) { + m_cfg->VtdDisable = 1; + return; + } + m_cfg->VtdBaseAddress[VTD_GFX] = GFXVT_BASE_ADDRESS; m_cfg->VtdBaseAddress[VTD_IPU] = IPUVT_BASE_ADDRESS; m_cfg->VtdBaseAddress[VTD_VTVCO] = VTVC0_BASE_ADDRESS; |