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tpm: Move tpm_tis_show_buffer to tpm_util.c

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Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200121152935.649898-2-stefanb@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Stefan Berger 2020-01-21 10:29:30 -05:00 committed by David Gibson
parent 08c3f3a734
commit 3688d73b6e
4 changed files with 33 additions and 29 deletions
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32
hw/tpm/tpm_tis.c
View File

@ -107,30 +107,6 @@ static uint8_t tpm_tis_locality_from_addr(hwaddr addr)
return (uint8_t)((addr >> TPM_TIS_LOCALITY_SHIFT) & 0x7);
}
static void tpm_tis_show_buffer(const unsigned char *buffer,
size_t buffer_size, const char *string)
{
size_t len, i;
char *line_buffer, *p;
len = MIN(tpm_cmd_get_size(buffer), buffer_size);
/*
* allocate enough room for 3 chars per buffer entry plus a
* newline after every 16 chars and a final null terminator.
*/
line_buffer = g_malloc(len * 3 + (len / 16) + 1);
for (i = 0, p = line_buffer; i < len; i++) {
if (i && !(i % 16)) {
p += sprintf(p, "\n");
}
p += sprintf(p, "%.2X ", buffer[i]);
}
trace_tpm_tis_show_buffer(string, len, line_buffer);
g_free(line_buffer);
}
/*
* Set the given flags in the STS register by clearing the register but
@ -156,8 +132,8 @@ static void tpm_tis_sts_set(TPMLocality *l, uint32_t flags)
*/
static void tpm_tis_tpm_send(TPMState *s, uint8_t locty)
{
if (trace_event_get_state_backends(TRACE_TPM_TIS_SHOW_BUFFER)) {
tpm_tis_show_buffer(s->buffer, s->be_buffer_size, "To TPM");
if (trace_event_get_state_backends(TRACE_TPM_UTIL_SHOW_BUFFER)) {
tpm_util_show_buffer(s->buffer, s->be_buffer_size, "To TPM");
}
/*
@ -325,8 +301,8 @@ static void tpm_tis_request_completed(TPMIf *ti, int ret)
s->loc[locty].state = TPM_TIS_STATE_COMPLETION;
s->rw_offset = 0;
if (trace_event_get_state_backends(TRACE_TPM_TIS_SHOW_BUFFER)) {
tpm_tis_show_buffer(s->buffer, s->be_buffer_size, "From TPM");
if (trace_event_get_state_backends(TRACE_TPM_UTIL_SHOW_BUFFER)) {
tpm_util_show_buffer(s->buffer, s->be_buffer_size, "From TPM");
}
if (TPM_TIS_IS_VALID_LOCTY(s->next_locty)) {

25
hw/tpm/tpm_util.c
View File

@ -350,3 +350,28 @@ void tpm_sized_buffer_reset(TPMSizedBuffer *tsb)
tsb->buffer = NULL;
tsb->size = 0;
}
void tpm_util_show_buffer(const unsigned char *buffer,
size_t buffer_size, const char *string)
{
size_t len, i;
char *line_buffer, *p;
len = MIN(tpm_cmd_get_size(buffer), buffer_size);
/*
* allocate enough room for 3 chars per buffer entry plus a
* newline after every 16 chars and a final null terminator.
*/
line_buffer = g_malloc(len * 3 + (len / 16) + 1);
for (i = 0, p = line_buffer; i < len; i++) {
if (i && !(i % 16)) {
p += sprintf(p, "\n");
}
p += sprintf(p, "%.2X ", buffer[i]);
}
trace_tpm_util_show_buffer(string, len, line_buffer);
g_free(line_buffer);
}

3
hw/tpm/tpm_util.h
View File

@ -79,4 +79,7 @@ typedef struct TPMSizedBuffer {
void tpm_sized_buffer_reset(TPMSizedBuffer *tsb);
void tpm_util_show_buffer(const unsigned char *buffer,
size_t buffer_size, const char *string);
#endif /* TPM_TPM_UTIL_H */

2
hw/tpm/trace-events
View File

@ -14,6 +14,7 @@ tpm_util_get_buffer_size_len(uint32_t len, size_t expected) "tpm_resp->len = %u,
tpm_util_get_buffer_size_hdr_len2(uint32_t len, size_t expected) "tpm2_resp->hdr.len = %u, expected = %zu"
tpm_util_get_buffer_size_len2(uint32_t len, size_t expected) "tpm2_resp->len = %u, expected = %zu"
tpm_util_get_buffer_size(size_t len) "buffersize of device: %zu"
tpm_util_show_buffer(const char *direction, size_t len, const char *buf) "direction: %s len: %zu\n%s"
# tpm_emulator.c
tpm_emulator_set_locality(uint8_t locty) "setting locality to %d"
@ -36,7 +37,6 @@ tpm_emulator_pre_save(void) ""
tpm_emulator_inst_init(void) ""
# tpm_tis.c
tpm_tis_show_buffer(const char *direction, size_t len, const char *buf) "direction: %s len: %zu\nbuf: %s"
tpm_tis_raise_irq(uint32_t irqmask) "Raising IRQ for flag 0x%08x"
tpm_tis_new_active_locality(uint8_t locty) "Active locality is now %d"
tpm_tis_abort(uint8_t locty) "New active locality is %d"