On 22/01/2021 10.22, Philippe Mathieu-Daudé wrote:
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.
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
---
meson.build | 3 +++
1 file changed, 3 insertions(+)
diff --git a/meson.build b/meson.build
index 0a645e54662..7aa52d306c6 100644
--- a/meson.build
+++ b/meson.build
@@ -234,6 +234,9 @@
error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
endif
endif
+ if 'CONFIG_TCG_INTERPRETER' in config_host and cpu in supported_cpus
+ warning('Experimental TCI requested while native TCG is available on @0@,
suboptimal performance expected'.format(cpu))
+ endif
accelerators += 'CONFIG_TCG'
config_host += { 'CONFIG_TCG': 'y' }
endif
Reviewed-by: Thomas Huth <[email protected]>
... maybe you could also add some wording to the help text of the configure
script? Or maybe we could simply rename the "--enable-tcg-interpreter"
option into "--enable-tci" to avoid confusion with the normal TCG ?
