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-rw-r--r--meta/recipes-devtools/qemu/qemu/0003-Introduce-condition-in-TPM-backend-for-notification.patch79
1 files changed, 0 insertions, 79 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0003-Introduce-condition-in-TPM-backend-for-notification.patch b/meta/recipes-devtools/qemu/qemu/0003-Introduce-condition-in-TPM-backend-for-notification.patch
deleted file mode 100644
index e58f019062..0000000000
--- a/meta/recipes-devtools/qemu/qemu/0003-Introduce-condition-in-TPM-backend-for-notification.patch
+++ /dev/null
@@ -1,79 +0,0 @@
-From 732a8e046948fd62b32cd1dd76a6798eb1caf4d6 Mon Sep 17 00:00:00 2001
-From: Stefan Berger <stefanb@linux.vnet.ibm.com>
-Date: Sat, 31 Dec 2016 11:23:32 -0500
-Subject: [PATCH 3/4] Introduce condition in TPM backend for notification
-
-TPM backends will suspend independently of the frontends. Also
-here we need to be able to wait for the TPM command to have been
-completely processed.
-
-Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
-
-Upstream-Status: Pending [https://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg00252.html]
-Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
----
- hw/tpm/tpm_passthrough.c | 20 ++++++++++++++++++++
- 1 file changed, 20 insertions(+)
-
-diff --git a/hw/tpm/tpm_passthrough.c b/hw/tpm/tpm_passthrough.c
-index 050f2ba850..44739ebad2 100644
---- a/hw/tpm/tpm_passthrough.c
-+++ b/hw/tpm/tpm_passthrough.c
-@@ -75,6 +75,10 @@ struct TPMPassthruState {
- TPMVersion tpm_version;
- ptm_cap cuse_cap; /* capabilities of the CUSE TPM */
- uint8_t cur_locty_number; /* last set locality */
-+
-+ QemuMutex state_lock;
-+ QemuCond cmd_complete; /* singnaled once tpm_busy is false */
-+ bool tpm_busy;
- };
-
- typedef struct TPMPassthruState TPMPassthruState;
-@@ -274,6 +278,11 @@ static void tpm_passthrough_worker_thread(gpointer data,
- thr_parms->recv_data_callback(thr_parms->tpm_state,
- thr_parms->tpm_state->locty_number,
- selftest_done);
-+ /* result delivered */
-+ qemu_mutex_lock(&tpm_pt->state_lock);
-+ tpm_pt->tpm_busy = false;
-+ qemu_cond_signal(&tpm_pt->cmd_complete);
-+ qemu_mutex_unlock(&tpm_pt->state_lock);
- break;
- case TPM_BACKEND_CMD_INIT:
- case TPM_BACKEND_CMD_END:
-@@ -401,6 +410,7 @@ static void tpm_passthrough_reset(TPMBackend *tb)
- tpm_backend_thread_end(&tpm_pt->tbt);
-
- tpm_pt->had_startup_error = false;
-+ tpm_pt->tpm_busy = false;
- }
-
- static int tpm_passthrough_init(TPMBackend *tb, TPMState *s,
-@@ -478,6 +488,11 @@ static void tpm_passthrough_deliver_request(TPMBackend *tb)
- {
- TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb);
-
-+ /* TPM considered busy once TPM Request scheduled for processing */
-+ qemu_mutex_lock(&tpm_pt->state_lock);
-+ tpm_pt->tpm_busy = true;
-+ qemu_mutex_unlock(&tpm_pt->state_lock);
-+
- tpm_backend_thread_deliver_request(&tpm_pt->tbt);
- }
-
-@@ -746,6 +761,11 @@ static const TPMDriverOps tpm_passthrough_driver = {
-
- static void tpm_passthrough_inst_init(Object *obj)
- {
-+ TPMBackend *tb = TPM_BACKEND(obj);
-+ TPMPassthruState *tpm_pt = TPM_PASSTHROUGH(tb);
-+
-+ qemu_mutex_init(&tpm_pt->state_lock);
-+ qemu_cond_init(&tpm_pt->cmd_complete);
- }
-
- static void tpm_passthrough_inst_finalize(Object *obj)
---
-2.11.0
-