diff options
Diffstat (limited to 'gitlab/issues_text/target_ppc/host_missing/accel_missing/584')
| -rw-r--r-- | gitlab/issues_text/target_ppc/host_missing/accel_missing/584 | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/gitlab/issues_text/target_ppc/host_missing/accel_missing/584 b/gitlab/issues_text/target_ppc/host_missing/accel_missing/584 deleted file mode 100644 index 9b52439f4..000000000 --- a/gitlab/issues_text/target_ppc/host_missing/accel_missing/584 +++ /dev/null @@ -1,43 +0,0 @@ -qemu-system-ppc: extra IPI interrupt on core0 -Description of problem: -When I try to emit an IPI interrupt from core0 to another core via the MPIC controller(IPIDR1—Interprocessor interrupt dispatch register 1), core0 itself generates an unwanted IPI interrupt. -Steps to reproduce: -1. Prepare ISR routine, something like: - - void ipi_handler (void) - { - int core_id = CORE_ID_GET(); - myprintf("\n IPI interrupt triggered on core:%d\n",core_id); - } -2. Create a task and bind it to core0. This task is mainly to write the MPIC controller to emit IPI interrupts to other cores. - MPIC_REG_WRITE(MPIC_BASE + IPIDR1, **0xe**); - -3. run the test task -Additional information: -/* Below test was tested on Qemu6.1 */ - -IPI interrupts are emitted by core:0 - -**IPI interrupt triggered on core:0** /* it's a bug, it should not trigger on core 0. */ - -IPI interrupt triggered on core:1 - -IPI interrupt triggered on core:2 - -IPI interrupt triggered on core:3 - - -This bug only occurs when "emitting an IPIDR1 interrupt from **core0**". - ------------- - - -/* Below test was tested on real board(fsl_p4080ds) */ - -IPI interrupts are emitted by core:0 - -IPI interrupt triggered on core:1 - -IPI interrupt triggered on core:2 - -IPI interrupt triggered on core:3 |