soc/intel/jasperlake: Enable VT-d and generate DMAR Table
Update UPDs required for the creation of DMAR table.
By default coreboot was not generating DMAR table for IOMMU which
was resulting in below error message in kernel:
DMAR: [Firmware Bug]: No DRHD structure found in DMAR table
DMAR: No DMAR devices found
These changes will publish DMAR table through ACPI and will not
result in the above error.
BUG=b:170261791
BRANCH=dedede
TEST=Build Dedede, boot to kernel and check dmesg if DMAR
table exists.
Signed-off-by: Meera Ravindranath <meera.ravindranath@intel.com>
Change-Id: I97a9f2df185002a4e58eaa910f867acd0b97ec2b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47506
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
diff --git a/src/soc/intel/jasperlake/romstage/fsp_params.c b/src/soc/intel/jasperlake/romstage/fsp_params.c
index 528ef0f..cd70807 100644
--- a/src/soc/intel/jasperlake/romstage/fsp_params.c
+++ b/src/soc/intel/jasperlake/romstage/fsp_params.c
@@ -4,6 +4,7 @@
#include <console/console.h>
#include <device/device.h>
#include <fsp/util.h>
+#include <soc/iomap.h>
#include <soc/pci_devs.h>
#include <soc/romstage.h>
#include <soc/soc_chip.h>
@@ -81,6 +82,18 @@
/* VT-d config */
m_cfg->VtdDisable = 0;
+ m_cfg->VtdIopEnable = 0x1;
+
+ if (m_cfg->InternalGfx) {
+ m_cfg->VtdIgdEnable = 0x1;
+ m_cfg->VtdBaseAddress[0] = GFXVT_BASE_ADDRESS;
+ }
+
+ if (m_cfg->SaIpuEnable) {
+ m_cfg->VtdIpuEnable = 0x1;
+ m_cfg->VtdBaseAddress[1] = IPUVT_BASE_ADDRESS;
+ }
+ m_cfg->VtdBaseAddress[2] = VTVC0_BASE_ADDRESS;
m_cfg->SerialIoUartDebugControllerNumber = CONFIG_UART_FOR_CONSOLE;
m_cfg->SerialIoUartDebugMode = config->SerialIoUartMode[CONFIG_UART_FOR_CONSOLE];