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authorStefan Berger <stefanb@linux.vnet.ibm.com>2018-03-02 21:04:42 -0500
committerStefan Berger <stefanb@linux.vnet.ibm.com>2018-03-06 13:00:41 -0500
commit9d9dcd96023efcb88538261b7eeb4ed036b6ab29 (patch)
tree973a20b1b463a2bcbf81aa0ba0a5557e645ff7f2 /hw/tpm
parentcc7d320f5d98a19eed5aa47b50e2186ba9c29ba7 (diff)
tpm: convert tpm_emulator.c to use trace-events
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/tpm')
-rw-r--r--hw/tpm/tpm_emulator.c45
-rw-r--r--hw/tpm/trace-events14
2 files changed, 37 insertions, 22 deletions
diff --git a/hw/tpm/tpm_emulator.c b/hw/tpm/tpm_emulator.c
index b787aee13b..d0da10a1a6 100644
--- a/hw/tpm/tpm_emulator.c
+++ b/hw/tpm/tpm_emulator.c
@@ -39,14 +39,7 @@
#include "qapi/error.h"
#include "qapi/clone-visitor.h"
#include "chardev/char-fe.h"
-
-#define DEBUG_TPM 0
-
-#define DPRINTF(fmt, ...) do { \
- if (DEBUG_TPM) { \
- fprintf(stderr, "tpm-emulator:"fmt"\n", ## __VA_ARGS__); \
- } \
-} while (0)
+#include "trace.h"
#define TYPE_TPM_EMULATOR "tpm-emulator"
#define TPM_EMULATOR(obj) \
@@ -151,13 +144,12 @@ static int tpm_emulator_set_locality(TPMEmulator *tpm_emu, uint8_t locty_number,
{
ptm_loc loc;
- DPRINTF("%s : locality: 0x%x", __func__, locty_number);
-
if (tpm_emu->cur_locty_number == locty_number) {
return 0;
}
- DPRINTF("setting locality : 0x%x", locty_number);
+ trace_tpm_emulator_set_locality(locty_number);
+
loc.u.req.loc = locty_number;
if (tpm_emulator_ctrlcmd(tpm_emu, CMD_SET_LOCALITY, &loc,
sizeof(loc), sizeof(loc)) < 0) {
@@ -183,7 +175,7 @@ static void tpm_emulator_handle_request(TPMBackend *tb, TPMBackendCmd *cmd,
{
TPMEmulator *tpm_emu = TPM_EMULATOR(tb);
- DPRINTF("processing TPM command");
+ trace_tpm_emulator_handle_request();
if (tpm_emulator_set_locality(tpm_emu, cmd->locty, errp) < 0 ||
tpm_emulator_unix_tx_bufs(tpm_emu, cmd->in, cmd->in_len,
@@ -195,7 +187,6 @@ static void tpm_emulator_handle_request(TPMBackend *tb, TPMBackendCmd *cmd,
static int tpm_emulator_probe_caps(TPMEmulator *tpm_emu)
{
- DPRINTF("%s", __func__);
if (tpm_emulator_ctrlcmd(tpm_emu, CMD_GET_CAPABILITY,
&tpm_emu->caps, 0, sizeof(tpm_emu->caps)) < 0) {
error_report("tpm-emulator: probing failed : %s", strerror(errno));
@@ -204,7 +195,7 @@ static int tpm_emulator_probe_caps(TPMEmulator *tpm_emu)
tpm_emu->caps = be64_to_cpu(tpm_emu->caps);
- DPRINTF("capabilities : 0x%"PRIx64, tpm_emu->caps);
+ trace_tpm_emulator_probe_caps(tpm_emu->caps);
return 0;
}
@@ -293,7 +284,7 @@ static int tpm_emulator_set_buffer_size(TPMBackend *tb,
*actual_size = be32_to_cpu(psbs.u.resp.buffersize);
}
- DPRINTF("buffer size: %u, min: %u, max: %u\n",
+ trace_tpm_emulator_set_buffer_size(
be32_to_cpu(psbs.u.resp.buffersize),
be32_to_cpu(psbs.u.resp.minsize),
be32_to_cpu(psbs.u.resp.maxsize));
@@ -314,7 +305,7 @@ static int tpm_emulator_startup_tpm(TPMBackend *tb, size_t buffersize)
goto err_exit;
}
- DPRINTF("%s", __func__);
+ trace_tpm_emulator_startup_tpm();
if (tpm_emulator_ctrlcmd(tpm_emu, CMD_INIT, &init, sizeof(init),
sizeof(init)) < 0) {
error_report("tpm-emulator: could not send INIT: %s",
@@ -348,7 +339,7 @@ static bool tpm_emulator_get_tpm_established_flag(TPMBackend *tb)
strerror(errno));
return false;
}
- DPRINTF("got established flag: %0x", est.u.resp.bit);
+ trace_tpm_emulator_get_tpm_established_flag(est.u.resp.bit);
tpm_emu->established_flag_cached = 1;
tpm_emu->established_flag = (est.u.resp.bit != 0);
@@ -395,7 +386,7 @@ static void tpm_emulator_cancel_cmd(TPMBackend *tb)
ptm_res res;
if (!TPM_EMULATOR_IMPLEMENTS_ALL_CAPS(tpm_emu, PTM_CAP_CANCEL_TPM_CMD)) {
- DPRINTF("Backend does not support CANCEL_TPM_CMD");
+ trace_tpm_emulator_cancel_cmd_not_supt();
return;
}
@@ -521,8 +512,16 @@ static int tpm_emulator_handle_device_opts(TPMEmulator *tpm_emu, QemuOpts *opts)
goto err;
}
- DPRINTF("TPM Version %s", tpm_emu->tpm_version == TPM_VERSION_1_2 ? "1.2" :
- (tpm_emu->tpm_version == TPM_VERSION_2_0 ? "2.0" : "Unspecified"));
+ switch (tpm_emu->tpm_version) {
+ case TPM_VERSION_1_2:
+ trace_tpm_emulator_handle_device_opts_tpm12();
+ break;
+ case TPM_VERSION_2_0:
+ trace_tpm_emulator_handle_device_opts_tpm2();
+ break;
+ default:
+ trace_tpm_emulator_handle_device_opts_unspec();
+ }
if (tpm_emulator_probe_caps(tpm_emu) ||
tpm_emulator_check_caps(tpm_emu)) {
@@ -532,7 +531,8 @@ static int tpm_emulator_handle_device_opts(TPMEmulator *tpm_emu, QemuOpts *opts)
return tpm_emulator_block_migration(tpm_emu);
err:
- DPRINTF("Startup error");
+ trace_tpm_emulator_handle_device_opts_startup_error();
+
return -1;
}
@@ -573,7 +573,8 @@ static void tpm_emulator_inst_init(Object *obj)
{
TPMEmulator *tpm_emu = TPM_EMULATOR(obj);
- DPRINTF("%s", __func__);
+ trace_tpm_emulator_inst_init();
+
tpm_emu->options = g_new0(TPMEmulatorOptions, 1);
tpm_emu->cur_locty_number = ~0;
qemu_mutex_init(&tpm_emu->mutex);
diff --git a/hw/tpm/trace-events b/hw/tpm/trace-events
index 66b2b91661..fe88fa6a9d 100644
--- a/hw/tpm/trace-events
+++ b/hw/tpm/trace-events
@@ -14,3 +14,17 @@ 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"
+
+# hw/tpm/tpm_emulator.c
+tpm_emulator_set_locality(uint8_t locty) "setting locality to %d"
+tpm_emulator_handle_request(void) "processing TPM command"
+tpm_emulator_probe_caps(uint64_t caps) "capabilities: 0x%"PRIx64
+tpm_emulator_set_buffer_size(uint32_t buffersize, uint32_t minsize, uint32_t maxsize) "buffer size: %u, min: %u, max: %u"
+tpm_emulator_startup_tpm(void) "startup"
+tpm_emulator_get_tpm_established_flag(uint8_t flag) "got established flag: %d"
+tpm_emulator_cancel_cmd_not_supt(void) "Backend does not support CANCEL_TPM_CMD"
+tpm_emulator_handle_device_opts_tpm12(void) "TPM Version 1.2"
+tpm_emulator_handle_device_opts_tpm2(void) "TPM Version 2"
+tpm_emulator_handle_device_opts_unspec(void) "TPM Version Unspecified"
+tpm_emulator_handle_device_opts_startup_error(void) "Startup error"
+tpm_emulator_inst_init(void) ""