diff options
Diffstat (limited to 'src/lib/tpm2_marshaling.c')
| -rw-r--r-- | src/lib/tpm2_marshaling.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/lib/tpm2_marshaling.c b/src/lib/tpm2_marshaling.c index ab9a928444..f4fd3cbc76 100644 --- a/src/lib/tpm2_marshaling.c +++ b/src/lib/tpm2_marshaling.c @@ -4,6 +4,7 @@ * found in the LICENSE file. */ +#include <arch/early_variables.h> #include <commonlib/endian.h> #include <console/console.h> #include <stdlib.h> @@ -11,7 +12,7 @@ #include "tpm2_marshaling.h" -static uint16_t tpm_tag; /* Depends on the command type. */ +static uint16_t tpm_tag CAR_GLOBAL; /* Depends on the command type. */ /* * Each unmarshaling function receives a pointer to the buffer pointer and a @@ -268,7 +269,7 @@ static void marshal_common_session_header(void **buffer, int i; struct tpm2_session_header session_header; - tpm_tag = TPM_ST_SESSIONS; + car_set_var(tpm_tag, TPM_ST_SESSIONS); for (i = 0; i < handle_count; i++) marshal_TPM_HANDLE(buffer, handles[i], buffer_space); @@ -380,7 +381,7 @@ int tpm_marshal_command(TPM_CC command, void *tpm_command_body, size_t body_size = max_body_size; /* Will be modified when marshaling some commands. */ - tpm_tag = TPM_ST_NO_SESSIONS; + car_set_var(tpm_tag, TPM_ST_NO_SESSIONS); switch (command) { case TPM2_Startup: @@ -437,7 +438,9 @@ int tpm_marshal_command(TPM_CC command, void *tpm_command_body, /* Total size includes the header size. */ marshaled_size += sizeof(struct tpm_header); - marshal_u16(&buffer, tpm_tag, &header_room); + uint16_t tpm_tag_value = car_get_var(tpm_tag); + + marshal_u16(&buffer, tpm_tag_value, &header_room); marshal_u32(&buffer, marshaled_size, &header_room); marshal_u32(&buffer, command, &header_room); return marshaled_size; |