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path: root/backends/tpm/tpm_emulator.c
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2023-03-13win32: replace closesocket() with close() wrapperMarc-André Lureau
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>
2023-02-08Drop duplicate #includeMarkus Armbruster
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>
2023-01-16Call qemu_socketpair() instead of socketpair() when possibleGuoyi Tu
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>
2022-09-13tpm_emulator: Have swtpm relock storage upon migration fall-backStefan Berger
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
2022-09-09tpm_emulator: Avoid double initialization during migrationRoss Lagerwall
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>
2021-09-27qapi: Convert simple union TpmTypeOptions to flat oneMarkus Armbruster
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]
2021-08-26migration: Unify failure check for migrate_add_blocker()Markus Armbruster
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>
2021-05-13backends/tpm: Replace qemu_mutex_lock calls with QEMU_LOCK_GUARDPhilippe Mathieu-Daudé
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>
2020-11-15tpm: Fix Lesser GPL version numberChetan Pant
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>
2020-09-18Use OBJECT_DECLARE_SIMPLE_TYPE when possibleEduardo Habkost
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>
2020-09-09Use DECLARE_*CHECKER* macrosEduardo Habkost
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>
2020-09-09Move QOM typedefs and add missing includesEduardo Habkost
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>
2020-07-24tpm_emulator: Report an error if chardev is missingStefan Berger
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>
2020-06-19tpm: Move backend code under the 'backends/' directoryPhilippe Mathieu-Daudé
TPM subsytem is split into backends (see commit f4ede81eed2) and frontends (see i.e. 3676bc69b35). 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>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-19 10:51:34 +0000