Commit Graph

19 Commits

Author SHA1 Message Date
Peter Maydell
c8193acc07 migration 1st pull for 9.0
- We lost Juan and Leo in the maintainers file
 - Steven's suspend state fix
 - Steven's fix for coverity on migrate_mode
 - Avihai's migration cleanup series
 -----BEGIN PGP SIGNATURE-----
 
 iIgEABYKADAWIQS5GE3CDMRX2s990ak7X8zN86vXBgUCZZY0TxIccGV0ZXJ4QHJl
 ZGhhdC5jb20ACgkQO1/MzfOr1wbSxgEAoM5g3wkc22lpAlRpU+hJUqT9NVOVQSK+
 Fk7XJYTdSgABAKzykA6hAmU5Kj+yVI6jI874SVZbs2FWpFs4osvsKk4D
 =sfuM
 -----END PGP SIGNATURE-----

Merge tag 'migration-20240104-pull-request' of https://gitlab.com/peterx/qemu into staging

migration 1st pull for 9.0

- We lost Juan and Leo in the maintainers file
- Steven's suspend state fix
- Steven's fix for coverity on migrate_mode
- Avihai's migration cleanup series

# -----BEGIN PGP SIGNATURE-----
#
# iIgEABYKADAWIQS5GE3CDMRX2s990ak7X8zN86vXBgUCZZY0TxIccGV0ZXJ4QHJl
# ZGhhdC5jb20ACgkQO1/MzfOr1wbSxgEAoM5g3wkc22lpAlRpU+hJUqT9NVOVQSK+
# Fk7XJYTdSgABAKzykA6hAmU5Kj+yVI6jI874SVZbs2FWpFs4osvsKk4D
# =sfuM
# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 04 Jan 2024 04:30:07 GMT
# gpg:                using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg:                issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [unknown]
# gpg:                 aka "Peter Xu <peterx@redhat.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D  D1A9 3B5F CCCD F3AB D706

* tag 'migration-20240104-pull-request' of https://gitlab.com/peterx/qemu: (26 commits)
  migration: fix coverity migrate_mode finding
  migration/multifd: Remove unnecessary usage of local Error
  migration: Remove unnecessary usage of local Error
  migration: Fix migration_channel_read_peek() error path
  migration/multifd: Remove error_setg() in migration_ioc_process_incoming()
  migration/multifd: Fix leaking of Error in TLS error flow
  migration/multifd: Simplify multifd_channel_connect() if else statement
  migration/multifd: Fix error message in multifd_recv_initial_packet()
  migration: Remove errp parameter in migration_fd_process_incoming()
  migration: Refactor migration_incoming_setup()
  migration: Remove nulling of hostname in migrate_init()
  migration: Remove migrate_max_downtime() declaration
  tests/qtest: postcopy migration with suspend
  tests/qtest: precopy migration with suspend
  tests/qtest: option to suspend during migration
  tests/qtest: migration events
  migration: preserve suspended for bg_migration
  migration: preserve suspended for snapshot
  migration: preserve suspended runstate
  migration: propagate suspended runstate
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-01-05 13:35:25 +00:00
Steve Sistare
0f1db069b6 cpus: check running not RUN_STATE_RUNNING
When a vm transitions from running to suspended, runstate notifiers are
not called, so the notifiers still think the vm is running.  Hence, when
we call vm_start to restore the suspended state, we call vm_state_notify
with running=1.  However, some notifiers check for RUN_STATE_RUNNING.
They must check the running boolean instead.

No functional change.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/1704312341-66640-4-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-01-04 09:52:42 +08:00
Richard Henderson
d349d5ab39 backends: Constify VMState
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231221031652.119827-65-richard.henderson@linaro.org>
2023-12-30 07:38:06 +11:00
Juan Quintela
99b16e8ee4 migration: Use vmstate_register_any()
This are the easiest cases, where we were already using
VMSTATE_INSTANCE_ID_ANY.

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20231020090731.28701-3-quintela@redhat.com>
2023-11-01 16:13:58 +01:00
Steve Sistare
c8a7fc5179 migration: simplify blockers
Modify migrate_add_blocker and migrate_del_blocker to take an Error **
reason.  This allows migration to own the Error object, so that if
an error occurs in migrate_add_blocker, migration code can free the Error
and clear the client handle, simplifying client code.  It also simplifies
the migrate_del_blocker call site.

In addition, this is a pre-requisite for a proposed future patch that would
add a mode argument to migration requests to support live update, and
maintain a list of blockers for each mode.  A blocker may apply to a single
mode or to multiple modes, and passing Error** will allow one Error object
to be registered for multiple modes.

No functional change.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Tested-by: Michael Galaxy <mgalaxy@akamai.com>
Reviewed-by: Michael Galaxy <mgalaxy@akamai.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <1697634216-84215-1-git-send-email-steven.sistare@oracle.com>
2023-10-20 08:51:41 +02:00
Marc-André Lureau
25657fc6c1 win32: replace closesocket() with close() wrapper
Use a close() wrapper instead, so that we don't need to worry about
closesocket() vs close() anymore, let's hope.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20230221124802.4103554-17-marcandre.lureau@redhat.com>
2023-03-13 15:39:31 +04:00
Markus Armbruster
a67dfa660b Drop duplicate #include
Tracked down with the help of scripts/clean-includes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230202133830.2152150-21-armbru@redhat.com>
2023-02-08 07:28:05 +01:00
Guoyi Tu
0038e9a226 Call qemu_socketpair() instead of socketpair() when possible
As qemu_socketpair() was introduced in commit 3c63b4e9
("oslib-posix: Introduce qemu_socketpair()"), it's time
to replace the other existing socketpair() calls with
qemu_socketpair() if possible

Signed-off-by: Guoyi Tu <tugy@chinatelecom.cn>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <cd28916a-f1f3-b54e-6ade-8a3647c3a9a5@chinatelecom.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-01-16 17:42:17 +01:00
Stefan Berger
99bdcd2cc2 tpm_emulator: Have swtpm relock storage upon migration fall-back
Swtpm may release the lock once the last one of its state blobs has been
migrated out. In case of VM migration failure QEMU now needs to notify
swtpm that it should again take the lock, which it can otherwise only do
once it has received the first TPM command from the VM.

Only try to send the lock command if swtpm supports it. It will not have
released the lock (and support shared storage setups) if it doesn't
support the locking command since the functionality of releasing the lock
upon state blob reception and the lock command were added to swtpm
'together'.

If QEMU sends the lock command and the storage has already been locked
no error is reported.

If swtpm does not receive the lock command (from older version of QEMU),
it will lock the storage once the first TPM command has been received. So
sending the lock command is an optimization.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20220912174741.1542330-3-stefanb@linux.ibm.com
2022-09-13 10:27:17 -04:00
Ross Lagerwall
a0bcec0376 tpm_emulator: Avoid double initialization during migration
When resuming after a migration, the backend sends CMD_INIT to the
emulator from the startup callback, then it sends the migration state
from the vmstate to the emulator, then it sends CMD_INIT again. Skip the
first CMD_INIT during a migration to avoid initializing the TPM twice.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
2022-09-09 17:55:45 -04:00
Markus Armbruster
39dc3e4a4e qapi: Convert simple union TpmTypeOptions to flat one
Simple unions predate flat unions.  Having both complicates the QAPI
schema language and the QAPI generator.  We haven't been using simple
unions in new code for a long time, because they are less flexible and
somewhat awkward on the wire.

To prepare for their removal, convert simple union TpmTypeOptions to
an equivalent flat one, with existing enum TpmType replacing implicit
enum TpmTypeOptionsKind.  Adds some boilerplate to the schema, which
is a bit ugly, but a lot easier to maintain than the simple union
feature.

Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210917143134.412106-6-armbru@redhat.com>
[Indentation tidied up]
2021-09-27 08:22:25 +02:00
Markus Armbruster
436c831a28 migration: Unify failure check for migrate_add_blocker()
Most callers check the return value.  Some check whether it set an
error.  Functionally equivalent, but the former tends to be easier on
the eyes, so do that everywhere.

Prior art: commit c6ecec43b2 "qemu-option: Check return value instead
of @err where convenient".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-10-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2021-08-26 17:15:28 +02:00
Philippe Mathieu-Daudé
bf5dcf8f2c backends/tpm: Replace qemu_mutex_lock calls with QEMU_LOCK_GUARD
Simplify the tpm_emulator_ctrlcmd() handler by replacing a pair of
qemu_mutex_lock/qemu_mutex_unlock calls by the WITH_QEMU_LOCK_GUARD
macro.

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Christophe de Dinechin <dinechin@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210512070713.3286188-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-13 17:43:56 +02:00
Chetan Pant
eac2fce957 tpm: Fix Lesser GPL version number
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.

Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Message-Id: <20201023123516.19843-1-chetan4windows@gmail.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-11-15 16:44:18 +01:00
Eduardo Habkost
8063396bf3 Use OBJECT_DECLARE_SIMPLE_TYPE when possible
This converts existing DECLARE_INSTANCE_CHECKER usage to
OBJECT_DECLARE_SIMPLE_TYPE when possible.

$ ./scripts/codeconverter/converter.py -i \
  --pattern=AddObjectDeclareSimpleType $(git grep -l '' -- '*.[ch]')

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Message-Id: <20200916182519.415636-6-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 14:12:32 -04:00
Eduardo Habkost
8110fa1d94 Use DECLARE_*CHECKER* macros
Generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-12-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-13-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-14-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:27:09 -04:00
Eduardo Habkost
db1015e92e Move QOM typedefs and add missing includes
Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TYPE.

Patch generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]')

which will split "typdef struct { ... } TypedefName"
declarations.

Followed by:

 $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \
    $(git grep -l '' -- '*.[ch]')

which will:
- move the typedefs and #defines above the type check macros
- add missing #include "qom/object.h" lines if necessary

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-9-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-10-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:26:43 -04:00
Stefan Berger
88f8307457 tpm_emulator: Report an error if chardev is missing
This patch fixes the odd error reporting when trying to send a file
descriptor to the TPM emulator if one has not passed a valid chardev.

$ x86_64-softmmu/qemu-system-x86_64 -tpmdev emulator,id=tpm0
qemu-system-x86_64: -tpmdev emulator,id=tpm0: tpm-emulator: Failed to send CMD_SET_DATAFD: Success
qemu-system-x86_64: -tpmdev emulator,id=tpm0: tpm-emulator: Could not cleanly shutdown the TPM: Success

This is the new error report:

$ x86_64-softmmu/qemu-system-x86_64 -tpmdev emulator,id=tpm0
qemu-system-x86_64: -tpmdev emulator,id=tpm0: tpm-emulator: parameter 'chardev' is missing

This change does not hide the display of supported TPM types if a non-existent type is passed:

$ x86_64-softmmu/qemu-system-x86_64 -tpmdev nonexistent,id=tpm0
qemu-system-x86_64: -tpmdev nonexistent,id=tpm0: Parameter 'type' expects a TPM backend type
Supported TPM types (choose only one):
 passthrough   Passthrough TPM backend driver
    emulator   TPM emulator backend driver

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2020-07-24 12:44:13 -04:00
Philippe Mathieu-Daudé
ca64b08638 tpm: Move backend code under the 'backends/' directory
TPM subsytem is split into backends (see commit f4ede81eed)
and frontends (see i.e. 3676bc69b3). Keep the emulated
hardware 'frontends' under hw/tpm/, but move the backends
in the backends/tpm/ directory.

Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200612085444.8362-13-philmd@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
2020-06-19 07:25:55 -04:00