diff options
Diffstat (limited to 'gitlab/issues_text/target_ppc/host_missing/accel_missing/1958')
| -rw-r--r-- | gitlab/issues_text/target_ppc/host_missing/accel_missing/1958 | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/gitlab/issues_text/target_ppc/host_missing/accel_missing/1958 b/gitlab/issues_text/target_ppc/host_missing/accel_missing/1958 deleted file mode 100644 index 5586e2288..000000000 --- a/gitlab/issues_text/target_ppc/host_missing/accel_missing/1958 +++ /dev/null @@ -1,21 +0,0 @@ -PPC msgsnd for DOORBELL CRITICAL masked by MSR[EE] instead of MSR[CE] -Description of problem: -When executing PPC instruction "msgsnd r3. with r3 = 0x08000001" an DOORBELL CRITICAL exception is raised on core number 1. But this exception is masked by MSR\[EE\] bit, the MSR\[EE\] should be set to 1 in core1 to get this exception. But the NXP E500MCRM.pdf reference manual indicates that MSR\[CE\] is the mask bit for DOORBELL_CRITICAL Exception. -Additional information: -In qemu-8.1.2/target/ppc/excp_helper.c i try to change in ppc_next_unmasked_interrupt_generic function: - -``` -if (FIELD_EX64(env->msr, MSR, CE)) { - /* Critical doorbell */ - if (env->pending_interrupts & PPC_INTERRUPT_CDOORBELL) { <- move this part from (async_deliver != 0) - return PPC_INTERRUPT_CDOORBELL; - } - /* External critical interrupt */ - if (env->pending_interrupts & PPC_INTERRUPT_CEXT) { - return PPC_INTERRUPT_CEXT; - } -} -``` - - -And it seems to work in my case. |