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-rw-r--r--meta/recipes-devtools/qemu/qemu/0002-Introduce-condition-to-notify-waiters-of-completed-c.patch86
1 files changed, 0 insertions, 86 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/0002-Introduce-condition-to-notify-waiters-of-completed-c.patch b/meta/recipes-devtools/qemu/qemu/0002-Introduce-condition-to-notify-waiters-of-completed-c.patch
deleted file mode 100644
index c88c98e565..0000000000
--- a/meta/recipes-devtools/qemu/qemu/0002-Introduce-condition-to-notify-waiters-of-completed-c.patch
+++ /dev/null
@@ -1,86 +0,0 @@
-From b5ffd3aa4e9bd4edb09cc84c46f78da72697a946 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 2/4] Introduce condition to notify waiters of completed
- command
-
-Introduce a lock and a condition to notify anyone waiting for the completion
-of the execution of a TPM command by the backend (thread). The backend
-uses the condition to signal anyone waiting for command completion.
-We need to place the condition in two locations: one is invoked by the
-backend thread, the other by the bottom half thread.
-We will use the signalling to wait for command completion before VM
-suspend.
-
-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_int.h | 3 +++
- hw/tpm/tpm_tis.c | 14 ++++++++++++++
- 2 files changed, 17 insertions(+)
-
-diff --git a/hw/tpm/tpm_int.h b/hw/tpm/tpm_int.h
-index 6b2c9c953a..70be1ad8d9 100644
---- a/hw/tpm/tpm_int.h
-+++ b/hw/tpm/tpm_int.h
-@@ -30,6 +30,9 @@ struct TPMState {
- char *backend;
- TPMBackend *be_driver;
- TPMVersion be_tpm_version;
-+
-+ QemuMutex state_lock;
-+ QemuCond cmd_complete;
- };
-
- #define TPM(obj) OBJECT_CHECK(TPMState, (obj), TYPE_TPM_TIS)
-diff --git a/hw/tpm/tpm_tis.c b/hw/tpm/tpm_tis.c
-index 381e7266ea..14d9e83ea2 100644
---- a/hw/tpm/tpm_tis.c
-+++ b/hw/tpm/tpm_tis.c
-@@ -368,6 +368,8 @@ static void tpm_tis_receive_bh(void *opaque)
- TPMTISEmuState *tis = &s->s.tis;
- uint8_t locty = s->locty_number;
-
-+ qemu_mutex_lock(&s->state_lock);
-+
- tpm_tis_sts_set(&tis->loc[locty],
- TPM_TIS_STS_VALID | TPM_TIS_STS_DATA_AVAILABLE);
- tis->loc[locty].state = TPM_TIS_STATE_COMPLETION;
-@@ -384,6 +386,10 @@ static void tpm_tis_receive_bh(void *opaque)
- tpm_tis_raise_irq(s, locty,
- TPM_TIS_INT_DATA_AVAILABLE | TPM_TIS_INT_STS_VALID);
- #endif
-+
-+ /* notify of completed command */
-+ qemu_cond_signal(&s->cmd_complete);
-+ qemu_mutex_unlock(&s->state_lock);
- }
-
- /*
-@@ -403,6 +409,11 @@ static void tpm_tis_receive_cb(TPMState *s, uint8_t locty,
- }
- }
-
-+ qemu_mutex_lock(&s->state_lock);
-+ /* notify of completed command */
-+ qemu_cond_signal(&s->cmd_complete);
-+ qemu_mutex_unlock(&s->state_lock);
-+
- qemu_bh_schedule(tis->bh);
- }
-
-@@ -1072,6 +1083,9 @@ static void tpm_tis_initfn(Object *obj)
- memory_region_init_io(&s->mmio, OBJECT(s), &tpm_tis_memory_ops,
- s, "tpm-tis-mmio",
- TPM_TIS_NUM_LOCALITIES << TPM_TIS_LOCALITY_SHIFT);
-+
-+ qemu_mutex_init(&s->state_lock);
-+ qemu_cond_init(&s->cmd_complete);
- }
-
- static void tpm_tis_class_init(ObjectClass *klass, void *data)
---
-2.11.0
-