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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_arm/host_missing/accel_missing/1950 | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues_text/target_arm/host_missing/accel_missing/1950')
| -rw-r--r-- | gitlab/issues_text/target_arm/host_missing/accel_missing/1950 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_arm/host_missing/accel_missing/1950 b/gitlab/issues_text/target_arm/host_missing/accel_missing/1950 new file mode 100644 index 000000000..288f81714 --- /dev/null +++ b/gitlab/issues_text/target_arm/host_missing/accel_missing/1950 @@ -0,0 +1,9 @@ +[AARCH64] GP bit (BTI) lost during two stages translation +Description of problem: +I noticed that the BTI faults were not reported. +That's because the GP (guarded page) information is lost during the two stages translation in get_phys_addr_twostage(). +The "guarded" information is correctly retrieved by the first call to get_phys_addr_nogpc() but overwritten by the the second call to get_phys_addr_nogpc(). +The call to combine_cacheattrs() copies cacheattrs1.guarded but this field is never modified. + +The attached patch fixes the issue for me. +[get_phys_addr_twostage_bti_gp_bit_lost_master.patch](/uploads/2fbe8090f92c43a63e39ee66ab2daf47/get_phys_addr_twostage_bti_gp_bit_lost_master.patch) |