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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2021-01-25 15:45:30 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2021-02-08 14:43:55 +0100
commitfa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d (patch)
tree8376a1d1cbd19048f2a62307fcd58d58af2a680a
parent39687aca6a72e08ea09652bb45073d09a65d8023 (diff)
downloadqemu-arm-fa2f7b0b9b7d1087bd09f8e086c6403515bbdd3d.tar.gz
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.build7
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'