summary refs log tree commit diff stats
path: root/results/classifier/semantic-bugs/instruction/1204
diff options
context:
space:
mode:
authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 19:39:53 +0200
commitdee4dcba78baf712cab403d47d9db319ab7f95d6 (patch)
tree418478faf06786701a56268672f73d6b0b4eb239 /results/classifier/semantic-bugs/instruction/1204
parent4d9e26c0333abd39bdbd039dcdb30ed429c475ba (diff)
downloadqemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.tar.gz
qemu-analysis-dee4dcba78baf712cab403d47d9db319ab7f95d6.zip
restructure results
Diffstat (limited to 'results/classifier/semantic-bugs/instruction/1204')
-rw-r--r--results/classifier/semantic-bugs/instruction/120442
1 files changed, 0 insertions, 42 deletions
diff --git a/results/classifier/semantic-bugs/instruction/1204 b/results/classifier/semantic-bugs/instruction/1204
deleted file mode 100644
index e47ce874a..000000000
--- a/results/classifier/semantic-bugs/instruction/1204
+++ /dev/null
@@ -1,42 +0,0 @@
-instruction: 0.457
-device: 0.406
-graphic: 0.397
-semantic: 0.357
-network: 0.356
-socket: 0.345
-assembly: 0.330
-vnc: 0.306
-mistranslation: 0.284
-other: 0.165
-boot: 0.147
-KVM: 0.125
-
-AArch64 unaligned accesses are allowed by QEMU when SCTLR_EL3.A is 0, but SCTLR_EL3.M is also 0
-Description of problem:
-As per the ARM ARM, when address translation is disabled and the access is not done from EL1/0 with HCR_EL2.DC set to 1, data accesses receive the 'Device-nGnRnE' memory attribute (D.8.2.10 The effects of disabling an address translation stage - DDi0487I.a, Page D8-5119).
-Memory regions marked as Device do not support unaligned access.
-Steps to reproduce:
-Run the following snippet under EL3, and notice the last load instruction completes successfully (doesn't raise an alignment fault)
-```
-.balign 8
-.global first_variable
-first_variable:
-      .word 0x1
-.balign 4
-.global second_variable
-second_variable:
-      .word 0x2
-
-no_mmu_sctlr: .dword 0x0000000030C51834
-
-.globl reproducer
-reproducer:
-      ldr  x1, no_mmu_sctlr // A=0,M=0
-      msr  sctlr_el3, x1
-      dsb  sy
-      isb
-
-      ldr  x0, =first_variable
-      ldr  x1, [x0, #0] // Aligned - Success
-      ldr  x1, [x0, #4] // Unaligned - Success??? (Should be failure)
-```