1 files changed, 31 insertions, 0 deletions

diff --git a/gitlab/issues/target_ppc/host_missing/accel_missing/1958.toml b/gitlab/issues/target_ppc/host_missing/accel_missing/1958.toml
new file mode 100644
index 000000000..c3abadccc
--- /dev/null
+++ b/gitlab/issues/target_ppc/host_missing/accel_missing/1958.toml
@@ -0,0 +1,31 @@
+id = 1958
+title = "PPC msgsnd for DOORBELL CRITICAL masked by MSR[EE] instead of MSR[CE]"
+state = "opened"
+created_at = "2023-10-25T07:32:40.218Z"
+closed_at = "n/a"
+labels = ["target: ppc"]
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1958"
+host-os = "Debian 11"
+host-arch = "amd64"
+qemu-version = "QEMU emulator version 8.1.2"
+guest-os = "Custom"
+guest-arch = "PPC E500mc"
+description = """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."""
+reproduce = "n/a"
+additional = """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."""