Merge tag 'for-upstream' of git://repo.or.cz/qemu/kevin into staging

Block layer patches

- Fix and re-enable GLOBAL_STATE_CODE assertions
- vhost-user: Fixes for VHOST_USER_ADD/REM_MEM_REG
- vmdk: Fix reopening bs->file
- coroutine: use QEMU_DEFINE_STATIC_CO_TLS()
- docs/qemu-img: Fix list of formats which implement check

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* tag 'for-upstream' of git://repo.or.cz/qemu/kevin:
  coroutine-win32: use QEMU_DEFINE_STATIC_CO_TLS()
  coroutine: use QEMU_DEFINE_STATIC_CO_TLS()
  coroutine-ucontext: use QEMU_DEFINE_STATIC_CO_TLS()
  iotests/reopen-file: Test reopening file child
  block/vmdk: Fix reopening bs->file
  iotests: Add regression test for issue 945
  Revert "main-loop: Disable GLOBAL_STATE_CODE() assertions"
  qcow2: Do not reopen data_file in invalidate_cache
  block: Classify bdrv_get_flags() as I/O function
  vhost-user: Don't pass file descriptor for VHOST_USER_REM_MEM_REG
  libvhost-user: Fix extra vu_add/rem_mem_reg reply
  docs/vhost-user: Clarifications for VHOST_USER_ADD/REM_MEM_REG
  qemu-img: properly list formats which have consistency check implemented

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

4 files changed, 180 insertions, 0 deletions

diff --git a/tests/qemu-iotests/tests/export-incoming-iothread b/tests/qemu-iotests/tests/export-incoming-iothread
new file mode 100755
index 0000000000..7679e49103
--- /dev/null
+++ b/tests/qemu-iotests/tests/export-incoming-iothread
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+# group: rw quick migration
+#
+# Regression test for issue 945:
+# https://gitlab.com/qemu-project/qemu/-/issues/945
+# Test adding an export on top of an iothread-ed block device while in
+# -incoming defer.
+#
+# Copyright (C) 2022 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import os
+import iotests
+from iotests import qemu_img_create
+
+
+image_size = 1 * 1024 * 1024
+test_img = os.path.join(iotests.test_dir, 'test.img')
+node_name = 'node0'
+iothread_id = 'iothr0'
+
+nbd_sock = os.path.join(iotests.sock_dir, 'nbd.sock')
+
+
+class TestExportIncomingIothread(iotests.QMPTestCase):
+    def setUp(self) -> None:
+        qemu_img_create('-f', iotests.imgfmt, test_img, str(image_size))
+
+        self.vm = iotests.VM()
+        self.vm.add_object(f'iothread,id={iothread_id}')
+        self.vm.add_blockdev((
+            f'driver={iotests.imgfmt}',
+            f'node-name={node_name}',
+            'file.driver=file',
+            f'file.filename={test_img}'
+        ))
+        self.vm.add_incoming('defer')
+        self.vm.launch()
+
+    def tearDown(self):
+        self.vm.shutdown()
+        os.remove(test_img)
+
+    def test_export_add(self):
+        result = self.vm.qmp('nbd-server-start', {
+            'addr': {
+                'type': 'unix',
+                'data': {
+                    'path': nbd_sock
+                }
+            }
+        })
+        self.assert_qmp(result, 'return', {})
+
+        # Regression test for issue 945: This should not fail an assertion
+        result = self.vm.qmp('block-export-add', {
+            'type': 'nbd',
+            'id': 'exp0',
+            'node-name': node_name,
+            'iothread': iothread_id
+        })
+        self.assert_qmp(result, 'return', {})
+
+
+if __name__ == '__main__':
+    iotests.main(supported_fmts=['generic'],
+                 unsupported_fmts=['luks'], # Would need a secret
+                 supported_protocols=['file'])
diff --git a/tests/qemu-iotests/tests/export-incoming-iothread.out b/tests/qemu-iotests/tests/export-incoming-iothread.out
new file mode 100644
index 0000000000..ae1213e6f8
--- /dev/null
+++ b/tests/qemu-iotests/tests/export-incoming-iothread.out
@@ -0,0 +1,5 @@
+.
+----------------------------------------------------------------------
+Ran 1 tests
+
+OK
diff --git a/tests/qemu-iotests/tests/reopen-file b/tests/qemu-iotests/tests/reopen-file
new file mode 100755
index 0000000000..8590a94d53
--- /dev/null
+++ b/tests/qemu-iotests/tests/reopen-file
@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+# group: rw quick
+#
+# Test reopening a format driver's file child
+#
+# Copyright (C) 2022 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import os
+import iotests
+from iotests import imgfmt, qemu_img_create, QMPTestCase
+
+
+image_size = 1 * 1024 * 1024
+test_img = os.path.join(iotests.test_dir, 'test.img')
+
+
+class TestReopenFile(QMPTestCase):
+    def setUp(self) -> None:
+        res = qemu_img_create('-f', imgfmt, test_img, str(image_size))
+        assert res.returncode == 0
+
+        # Add format driver node ('format') on top of the file ('file'), then
+        # add another raw node ('raw') on top of 'file' so for the reopen we
+        # can just switch from 'file' to 'raw'
+        self.vm = iotests.VM()
+        self.vm.add_blockdev(self.vm.qmp_to_opts({
+            'driver': imgfmt,
+            'node-name': 'format',
+            'file': {
+                'driver': 'file',
+                'node-name': 'file',
+                'filename': test_img
+            }
+        }))
+        self.vm.add_blockdev(self.vm.qmp_to_opts({
+            'driver': 'raw',
+            'node-name': 'raw',
+            'file': 'file'
+        }))
+        self.vm.launch()
+
+    def tearDown(self) -> None:
+        self.vm.shutdown()
+        os.remove(test_img)
+
+        # Check if there was any qemu-io run that failed
+        if 'Pattern verification failed' in self.vm.get_log():
+            print('ERROR: Pattern verification failed:')
+            print(self.vm.get_log())
+            self.fail('qemu-io pattern verification failed')
+
+    def test_reopen_file(self) -> None:
+        result = self.vm.qmp('blockdev-reopen', options=[{
+            'driver': imgfmt,
+            'node-name': 'format',
+            'file': 'raw'
+        }])
+        self.assert_qmp(result, 'return', {})
+
+        # Do some I/O to the image to see whether it still works
+        # (Pattern verification will be checked by tearDown())
+        result = self.vm.qmp('human-monitor-command',
+                             command_line='qemu-io format "write -P 42 0 64k"')
+        self.assert_qmp(result, 'return', '')
+
+        result = self.vm.qmp('human-monitor-command',
+                             command_line='qemu-io format "read -P 42 0 64k"')
+        self.assert_qmp(result, 'return', '')
+
+
+if __name__ == '__main__':
+    # Must support creating images and reopen
+    iotests.main(supported_fmts=['qcow', 'qcow2', 'qed', 'raw', 'vdi', 'vhdx',
+                                 'vmdk', 'vpc'],
+                 supported_protocols=['file'])
diff --git a/tests/qemu-iotests/tests/reopen-file.out b/tests/qemu-iotests/tests/reopen-file.out
new file mode 100644
index 0000000000..ae1213e6f8
--- /dev/null
+++ b/tests/qemu-iotests/tests/reopen-file.out
@@ -0,0 +1,5 @@
+.
+----------------------------------------------------------------------
+Ran 1 tests
+
+OK