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| author | Philippe Mathieu-Daudé | 2021-01-25 15:45:30 +0100 |
|---|---|---|
| committer | Paolo Bonzini | 2021-02-08 14:43:55 +0100 |
| commit | fa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d (patch) | |
| tree | 8376a1d1cbd19048f2a62307fcd58d58af2a680a | |
| parent | meson: Explicit TCG backend used (diff) | |
| download | qemu-fa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d.tar.gz qemu-fa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d.tar.xz qemu-fa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d.zip | |
meson: Warn when TCI is selected but TCG backend is available
Some new users get confused with 'TCG' and 'TCI', and enable TCI
support expecting to enable TCG.
Emit a warning when native TCG backend is available on the
host architecture, mentioning this is a suboptimal configuration.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Suggested-by: Daniel Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210125144530.2837481-5-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | meson.build | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/meson.build b/meson.build index 3a13ba3307..4cc3ebb827 100644 --- a/meson.build +++ b/meson.build @@ -231,6 +231,13 @@ if not get_option('tcg').disabled() else error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu)) endif + elif get_option('tcg_interpreter') + warning('Use of the TCG interpretor is not recommended on this host') + warning('architecture. There is a native TCG execution backend available') + warning('which provides substantially better performance and reliability.') + warning('It is strongly recommended to remove the --enable-tcg-interpreter') + warning('configuration option on this architecture to use the native') + warning('backend.') endif if get_option('tcg_interpreter') tcg_arch = 'tci' |