acpi: tpm: Add a TPM1 table
This provides information about a v1 TPM in the system. Generate this
table if the TPM is present.
Add a required new bloblist type and correct the header order of one
header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/lib/acpi_table.c b/arch/x86/lib/acpi_table.c
index c31cc92..10cf3b7 100644
--- a/arch/x86/lib/acpi_table.c
+++ b/arch/x86/lib/acpi_table.c
@@ -215,6 +215,47 @@
header->checksum = table_compute_checksum((void *)mcfg, header->length);
}
+/**
+ * acpi_create_tcpa() - Create a TCPA table
+ *
+ * @tcpa: Pointer to place to put table
+ *
+ * Trusted Computing Platform Alliance Capabilities Table
+ * TCPA PC Specific Implementation SpecificationTCPA is defined in the PCI
+ * Firmware Specification 3.0
+ */
+static int acpi_create_tcpa(struct acpi_tcpa *tcpa)
+{
+ struct acpi_table_header *header = &tcpa->header;
+ u32 current = (u32)tcpa + sizeof(struct acpi_tcpa);
+ int size = 0x10000; /* Use this as the default size */
+ void *log;
+ int ret;
+
+ if (!CONFIG_IS_ENABLED(BLOBLIST))
+ return -ENXIO;
+ memset(tcpa, '\0', sizeof(struct acpi_tcpa));
+
+ /* Fill out header fields */
+ acpi_fill_header(header, "TCPA");
+ header->length = sizeof(struct acpi_tcpa);
+ header->revision = 1;
+
+ ret = bloblist_ensure_size_ret(BLOBLISTT_TCPA_LOG, &size, &log);
+ if (ret)
+ return log_msg_ret("blob", ret);
+
+ tcpa->platform_class = 0;
+ tcpa->laml = size;
+ tcpa->lasa = (ulong)log;
+
+ /* (Re)calculate length and checksum */
+ header->length = current - (u32)tcpa;
+ header->checksum = table_compute_checksum((void *)tcpa, header->length);
+
+ return 0;
+}
+
static int get_tpm2_log(void **ptrp, int *sizep)
{
const int tpm2_default_log_len = 0x10000;
@@ -457,11 +498,13 @@
struct acpi_fadt *fadt;
struct acpi_table_header *ssdt;
struct acpi_mcfg *mcfg;
+ struct acpi_tcpa *tcpa;
struct acpi_madt *madt;
struct acpi_csrt *csrt;
struct acpi_spcr *spcr;
void *start;
ulong addr;
+ int ret;
int i;
start = map_sysmem(start_addr, 0);
@@ -560,7 +603,6 @@
if (IS_ENABLED(CONFIG_TPM_V2)) {
struct acpi_tpm2 *tpm2;
- int ret;
debug("ACPI: * TPM2\n");
tpm2 = (struct acpi_tpm2 *)ctx->current;
@@ -579,6 +621,16 @@
acpi_inc_align(ctx, madt->header.length);
acpi_add_table(ctx, madt);
+ debug("ACPI: * TCPA\n");
+ tcpa = (struct acpi_tcpa *)ctx->current;
+ ret = acpi_create_tcpa(tcpa);
+ if (ret) {
+ log_warning("Failed to create TCPA table (err=%d)\n", ret);
+ } else {
+ acpi_inc_align(ctx, tcpa->header.length);
+ acpi_add_table(ctx, tcpa);
+ }
+
debug("ACPI: * CSRT\n");
csrt = ctx->current;
if (!acpi_create_csrt(csrt)) {