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tests/qtest: qtest_init_after_exec

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Define a function to create a QTestState object representing the state
of QEMU after old QEMU exec's new QEMU.  This is needed for testing
the cpr-exec migration mode.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/1759332851-370353-14-git-send-email-steven.sistare@oracle.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Steve Sistare
2025-10-01 08:34:05 -07:00
committed by Fabiano Rosas
parent e9fbd9e6b1
commit 5419f36e9e
2 changed files with 27 additions and 0 deletions
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19
tests/qtest/libqtest.c
View File

@@ -615,6 +615,25 @@ QTestState *qtest_init_ext(const char *var, const char *extra_args,
return s;
}
static QTestState *qtest_attach_qemu(const char *qemu_bin,
const char *extra_args,
void *opaque)
{
int pid = *(int *)opaque;
return qtest_create_test_state(pid);
}
QTestState *qtest_init_after_exec(QTestState *qts)
{
void *opaque = (void *)&qts->qemu_pid;
QTestState *s;
s = qtest_init_internal(NULL, NULL, true, qtest_attach_qemu, opaque);
qts->qemu_pid = -1;
qtest_qmp_handshake(s, NULL);
return s;
}
QTestState *qtest_init(const char *extra_args)
{
return qtest_init_ext(NULL, extra_args, NULL, true);

8
tests/qtest/libqtest.h
View File

@@ -56,6 +56,14 @@ QTestState *qtest_vinitf(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
*/
const char *qtest_qemu_binary(const char *var);
/**
* qtest_init_after_exec:
* @qts: the previous QEMU state
*
* Return a test state representing new QEMU after @qts exec's it.
*/
QTestState *qtest_init_after_exec(QTestState *qts);
/**
* qtest_qemu_args:
* @extra_args: Other arguments to pass to QEMU.