Newer architecture features are supported by qemu TCG on newer CPUs. When
writing a test for such architecture features, it is necessary to pass the
correct -cpu argument to qemu. Make it easier on users and test authors
alike by making 'max' the default value for --processor. The 'max' CPU
model contains all the features of the cortex-a57 CPU (the old default), so
no regression should be possible.
A side effect is that, by default, the compiler will not receive a -mcpu
argument for compiling the code. The expectation is that this is fine,
since support for -mcpu=$PROCESSOR has only been added for arm64 in the
last commit.
The default for arm (cortex-a15) has been kept unchanged, because passing
--processor=max will cause compilation to break. If the user wants the qemu
CPU model to be 'max', the user will also have to supply a suitable compile
CPU target via --cflags=-mcpu=<cpu> configure option.
Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
---
configure | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure b/configure
index 46964d36a7d8..3ab0ec208e10 100755
--- a/configure
+++ b/configure
@@ -14,7 +14,7 @@ function get_default_processor()
default_processor="cortex-a15"
;;
"arm64" | "aarch64")
- default_processor="cortex-a57"
+ default_processor="max"
;;
*)
default_processor=$arch
--
2.47.1
