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authorChristian Krinitsin <mail@krinitsin.com>2025-06-03 12:04:13 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-03 12:04:13 +0000
commit256709d2eb3fd80d768a99964be5caa61effa2a0 (patch)
tree05b2352fba70923126836a64b6a0de43902e976a /results/classifier/105/instruction/1416
parent2ab14fa96a6c5484b5e4ba8337551bb8dcc79cc5 (diff)
downloadqemu-analysis-256709d2eb3fd80d768a99964be5caa61effa2a0.tar.gz
qemu-analysis-256709d2eb3fd80d768a99964be5caa61effa2a0.zip
add new classifier result
Diffstat (limited to 'results/classifier/105/instruction/1416')
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1 files changed, 18 insertions, 0 deletions
diff --git a/results/classifier/105/instruction/1416 b/results/classifier/105/instruction/1416
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+instruction: 0.926
+device: 0.851
+network: 0.824
+graphic: 0.801
+mistranslation: 0.735
+socket: 0.649
+other: 0.641
+vnc: 0.553
+semantic: 0.439
+boot: 0.362
+assembly: 0.233
+KVM: 0.049
+
+MTE tags are applied at page granularity (4K) instead of tag granularity (16)
+Description of problem:
+After upgrading to QEMU v7.2.0 from v7.1.0, when executing stg/ldg instructions on any address, QEMU behaves as if the instruction was executed on the page base of said address.
+
+I believe this was introduced in b8967ddf393aaf35fdbc07b4cb538a40f8b6fe37 (@rth7680), since in that commit `ptr_paddr` is changed to be calculated based on `CPUTLBEntryFull::phys_addr`, which contains the page base address, while beforehand it was calculated based on `host` which does have the page offset applied.