
When QEMU works in icount mode cpu_restore_state function performs two actions: restoring the program counter and updating icount to the correct value. kvmvapic's patch_instruction function is called by cpu_report_tpr_access function which also invokes cpu_restore_state. It results to calling cpu_restore_state twice - in cpu_report_tpr_access and in patch_instruction. When icount is disabled second call is safe. But when icount is enabled, cpu_restore_state modifies instructions counter twice, which leads to incorrect behavior. This patch removes useless cpu_restore_state call from kvmvapic. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
…
Read the documentation in qemu-doc.html or on http://wiki.qemu-project.org - QEMU team
Description
Languages
C
82.6%
C++
6.5%
Python
3.4%
Dylan
2.9%
Shell
1.6%
Other
2.8%