diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/hypervisor/1349277')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/hypervisor/1349277 | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/hypervisor/1349277 b/results/classifier/deepseek-2-tmp/output/hypervisor/1349277 deleted file mode 100644 index 86aa055a0..000000000 --- a/results/classifier/deepseek-2-tmp/output/hypervisor/1349277 +++ /dev/null @@ -1,18 +0,0 @@ - -AArch64 emulation ignores SPSel=0 when taking (or returning from) an exception at EL1 or greater - -The AArch64 emulation ignores SPSel=0 when: - -(1) taking an interrupt from an exception level greater than EL0 (e.g., EL1t), - -(2) returning from an exception (via ERET) to an exception level greater than EL0 (e.g., EL1t), with SPSR_ELx[SPSel]=0. - -The attached patch fixes the problem in my application. - -Background: - -I'm running a standalone application (toy OS) that is performing preemptive multithreading between threads running at EL1t, with exception handling / context switching occurring at EL1h. This bug causes the stack pointer to be corrupted in the threads running at EL1t (they end up with a version of the EL1h stack pointer (SP_EL1)). - -Occurs in: - qemu-2.1.0-rc1 (found in) - commit c60a57ff497667780132a3fcdc1500c83af5d5c0 (current master) \ No newline at end of file |