diff options
| author | Daniel P. Berrangé <berrange@redhat.com> | 2024-06-20 17:57:37 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-07-02 06:58:31 +0200 |
| commit | c9fd2d9a48ee3c195cf83cc611b87b09f02f0013 (patch) | |
| tree | f9c3e2909cd6735a844ff73255616b6464eb5c44 /include/hw/boards.h | |
| parent | a35f8577a0789fe883047afb13a45ecfae4f0107 (diff) | |
include/hw: temporarily disable deletion of versioned machine types
The new deprecation and deletion policy for versioned machine types is
being introduced in QEMU 9.1.0.
Under the new policy a number of old machine types (any prior to 2.12)
would be liable for immediate deletion which would be a violation of our
historical deprecation and removal policy
Thus automatic deletions (by skipping QOM registration) are temporarily
gated on existance of the env variable "QEMU_DELETE_MACHINES" / QEMU
version number >= 10.1.0. This allows opt-in testing of the automatic
deletion logic, while activating it fully in QEMU >= 10.1.0.
This whole commit should be reverted in the 10.1.0 dev cycle or shortly
thereafter.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240620165742.1711389-10-berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'include/hw/boards.h')
| -rw-r--r-- | include/hw/boards.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/hw/boards.h b/include/hw/boards.h index 187ed76646..ef6f18f2c1 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -686,11 +686,28 @@ struct MachineState { * suitable period of time has passed, it will cause * execution of the method to return, avoiding registration * of the machine + * + * The new deprecation and deletion policy for versioned + * machine types was introduced in QEMU 9.1.0. + * + * Under the new policy a number of old machine types (any + * prior to 2.12) would be liable for immediate deletion + * which would be a violation of our historical deprecation + * and removal policy + * + * Thus deletions are temporarily gated on existance of + * the env variable "QEMU_DELETE_MACHINES" / QEMU version + * number >= 10.1.0. This gate can be deleted in the 10.1.0 + * dev cycle */ #define MACHINE_VER_DELETION(...) \ do { \ if (MACHINE_VER_SHOULD_DELETE(__VA_ARGS__)) { \ - return; \ + if (getenv("QEMU_DELETE_MACHINES") || \ + QEMU_VERSION_MAJOR > 10 || (QEMU_VERSION_MAJOR == 10 && \ + QEMU_VERSION_MINOR >= 1)) { \ + return; \ + } \ } \ } while (0) |