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[PATCH v4 5/8] tpm: Return bool from tpm_backend_finish_sync
From: |
Stefan Berger |
Subject: |
[PATCH v4 5/8] tpm: Return bool from tpm_backend_finish_sync |
Date: |
Thu, 12 Dec 2019 13:07:41 -0500 |
Return true in case we had to wait for an outstanding response
to come back, false otherwise.
Signed-off-by: Stefan Berger <address@hidden>
diff --git a/backends/tpm.c b/backends/tpm.c
index 424c9fd485..ae4d8c526b 100644
--- a/backends/tpm.c
+++ b/backends/tpm.c
@@ -49,11 +49,15 @@ static int tpm_backend_worker_thread(gpointer data)
return 0;
}
-void tpm_backend_finish_sync(TPMBackend *s)
+bool tpm_backend_finish_sync(TPMBackend *s)
{
+ bool ret = s->cmd != NULL;
+
while (s->cmd) {
aio_poll(qemu_get_aio_context(), true);
}
+
+ return ret;
}
enum TpmType tpm_backend_get_type(TPMBackend *s)
diff --git a/include/sysemu/tpm_backend.h b/include/sysemu/tpm_backend.h
index f5d8051b45..3ab9f51ba4 100644
--- a/include/sysemu/tpm_backend.h
+++ b/include/sysemu/tpm_backend.h
@@ -202,8 +202,10 @@ size_t tpm_backend_get_buffer_size(TPMBackend *s);
*
* Finish the pending command synchronously (this will call aio_poll()
* on qemu main AIOContext until it ends)
+ *
+ * Returns true in case there was a pending command, false otherwise.
*/
-void tpm_backend_finish_sync(TPMBackend *s);
+bool tpm_backend_finish_sync(TPMBackend *s);
/**
* tpm_backend_query_tpm:
--
2.21.0
- [PATCH v4 0/8] Add vTPM emulator supportfor ppc64 platform, Stefan Berger, 2019/12/12
- [PATCH v4 2/8] tpm_backend: Implement check whether tpm backend is suspended, Stefan Berger, 2019/12/12
- [PATCH v4 6/8] tpm_spapr: Support suspend and resume, Stefan Berger, 2019/12/12
- [PATCH v4 7/8] hw/ppc/Kconfig: Enable TPM_SPAPR as part of PSERIES config, Stefan Berger, 2019/12/12
- [PATCH v4 8/8] docs: tpm: Add example command line for ppc64 and tpm-spapr, Stefan Berger, 2019/12/12
- [PATCH v4 1/8] tpm_spapr: Support TPM for ppc64 using CRQ based interface, Stefan Berger, 2019/12/12
- [PATCH v4 5/8] tpm: Return bool from tpm_backend_finish_sync,
Stefan Berger <=
- [PATCH v4 3/8] tpm_emulator: Implement callback for whether we are suspended, Stefan Berger, 2019/12/12
- [PATCH v4 4/8] tpm_passthrough: Implement callback for whether we are suspended, Stefan Berger, 2019/12/12