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test-runner: Use '-cpu host' in kvm mode

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When KVM is available, use the -cpu host option.  This is useful on
distributions that might use architecture specific optimizations, which
might not be available on the default machine being emulated by qemu.

For example, a Gentoo box compiled with "-march=core-avx2" would result
in several binaries not executing properly inside the qemu environment
due to instruction set mismatches.
This commit is contained in:
Denis Kenzior 2016-05-26 10:03:26 -05:00
parent 2901cb1169
commit f4becdff6a
1 changed files with 4 additions and 1 deletions
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5
tools/test-runner.c
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@ -301,8 +301,11 @@ static void start_qemu(void)
argv[pos++] = "-append";
argv[pos++] = (char *) cmdline;
if (has_virt)
if (has_virt) {
argv[pos++] = "-cpu";
argv[pos++] = "host";
argv[pos++] = "-enable-kvm";
}
argv[pos] = NULL;