bwlp/qemu.git/backends/tpm, branch master

tpm_emulator: Have swtpm relock storage upon migration fall-back

2022-09-13T14:27:17+00:00

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 Reviewed-by: Marc-André Lureau Message-id: 20220912174741.1542330-3-stefanb@linux.ibm.com

tpm_emulator: Use latest tpm_ioctl.h from swtpm project

2022-09-13T14:27:17+00:00

Use the latest tpm_ioctl.h from upstream swtpm project. Signed-off-by: Stefan Berger Reviewed-by: Marc-André Lureau Message-id: 20220912174741.1542330-2-stefanb@linux.ibm.com

tpm_emulator: Avoid double initialization during migration

2022-09-09T21:55:45+00:00

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 Reviewed-by: Marc-André Lureau Tested-by: Stefan Berger Signed-off-by: Stefan Berger

backends/tpm: Exclude headers and macros that don't exist on win32

2022-08-25T13:24:09+00:00

These headers and macros do not exist on Windows. Exclude them. Signed-off-by: Bin Meng Reviewed-by: Stefan Berger Message-Id: <20220824094029.1634519-15-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth

Remove qemu-common.h include from most units

2022-04-06T12:31:55+00:00

Signed-off-by: Marc-André Lureau Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini

configure, meson: move TPM check to meson

2022-02-21T09:35:53+00:00

The check is simply for a POSIX system. Signed-off-by: Paolo Bonzini

qapi: Convert simple union TpmTypeOptions to flat one

2021-09-27T06:22:25+00:00

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 Signed-off-by: Markus Armbruster Acked-by: Stefan Berger Reviewed-by: Eric Blake Message-Id: <20210917143134.412106-6-armbru@redhat.com> [Indentation tidied up]

migration: Unify failure check for migrate_add_blocker()

2021-08-26T15:15:28+00:00

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 Message-Id: <20210720125408.387910-10-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé Acked-by: Michael S. Tsirkin

docs: fix references to docs/devel/tracing.rst

2021-06-02T04:51:09+00:00

Commit e50caf4a5c ("tracing: convert documentation to rST") converted docs/devel/tracing.txt to docs/devel/tracing.rst. We still have several references to the old file, so let's fix them with the following command: sed -i s/tracing.txt/tracing.rst/ $(git grep -l docs/devel/tracing.txt) Signed-off-by: Stefano Garzarella Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20210517151702.109066-2-sgarzare@redhat.com> Signed-off-by: Thomas Huth

backends/tpm: Replace qemu_mutex_lock calls with QEMU_LOCK_GUARD

2021-05-13T15:43:56+00:00

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 Reviewed-by: Christophe de Dinechin Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20210512070713.3286188-1-philmd@redhat.com> Signed-off-by: Laurent Vivier