qemu/tests/tpm-emu.h
Stefan Berger 2271b75fa9 tests: Fix signalling race condition in TPM tests
This patch fixes a race condition and test failure where the main process
waits for the signal of a thread but the thread already sent that signal
via a condition. Since these signals are non-sticky, we need to introduce a
separate variable to make this signal sticky.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2018-09-07 16:37:47 -04:00

39 lines
862 B
C

/*
* Minimal TPM emulator for TPM test cases
*
* Copyright (c) 2018 Red Hat, Inc.
*
* Authors:
* Marc-André Lureau <marcandre.lureau@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef TESTS_TPM_EMU_H
#define TESTS_TPM_EMU_H
#define TPM_RC_FAILURE 0x101
#define TPM2_ST_NO_SESSIONS 0x8001
struct tpm_hdr {
uint16_t tag;
uint32_t len;
uint32_t code; /*ordinal/error */
char buffer[];
} QEMU_PACKED;
typedef struct TestState {
GMutex data_mutex;
GCond data_cond;
bool data_cond_signal;
SocketAddress *addr;
QIOChannel *tpm_ioc;
GThread *emu_tpm_thread;
struct tpm_hdr *tpm_msg;
} TestState;
void tpm_emu_test_wait_cond(TestState *s);
void *tpm_emu_ctrl_thread(void *data);
#endif /* TEST_TPM_EMU_H */