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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-04-06 10:40:20 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-04-12 11:06:24 +0100 |
| commit | eb42297a59e103500bdd2c352c5b52f54b1c33cd (patch) | |
| tree | af7603fdfa104013fc2ef405f69533c996c55df5 /docs/sphinx/qapidoc.py | |
| parent | 017a913af4dff47ac5e62be613b9f8b88fc8fa96 (diff) | |
| download | focaccia-qemu-eb42297a59e103500bdd2c352c5b52f54b1c33cd.tar.gz focaccia-qemu-eb42297a59e103500bdd2c352c5b52f54b1c33cd.zip | |
accel/tcg: Preserve PAGE_ANON when changing page permissions
Using mprotect() to change PROT_* does not change the MAP_ANON previously set with mmap(). Our linux-user version of MTE only works with MAP_ANON pages, so losing PAGE_ANON caused MTE to stop working. Reported-by: Stephen Long <steplong@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'docs/sphinx/qapidoc.py')
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