diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2024-08-06 23:13:14 +1000 |
|---|---|---|
| committer | Nicholas Piggin <npiggin@gmail.com> | 2024-11-04 09:08:32 +1000 |
| commit | c5747965afca017e27a475082126594e8306c766 (patch) | |
| tree | 6cfab986d4724b43a66273bbd01506240b04a9b7 | |
| parent | 0324d236d2918c18a9ad4a1081b1083965a1433b (diff) | |
target/ppc: PMIs are level triggered
In Book-S / Power processors, the performance monitor interrupts are
driven by the MMCR0[PMAO] bit, which is level triggered and not cleared
by the interrupt.
Others may have different performance monitor architecture, but none of
those are implemented by QEMU.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
| -rw-r--r-- | target/ppc/excp_helper.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c index f33fc36db2..701abe1b6d 100644 --- a/target/ppc/excp_helper.c +++ b/target/ppc/excp_helper.c @@ -2187,7 +2187,6 @@ static void p7_deliver_interrupt(CPUPPCState *env, int interrupt) powerpc_excp(cpu, POWERPC_EXCP_DECR); break; case PPC_INTERRUPT_PERFM: - env->pending_interrupts &= ~PPC_INTERRUPT_PERFM; powerpc_excp(cpu, POWERPC_EXCP_PERFM); break; case 0: @@ -2250,7 +2249,6 @@ static void p8_deliver_interrupt(CPUPPCState *env, int interrupt) powerpc_excp(cpu, POWERPC_EXCP_SDOOR_HV); break; case PPC_INTERRUPT_PERFM: - env->pending_interrupts &= ~PPC_INTERRUPT_PERFM; powerpc_excp(cpu, POWERPC_EXCP_PERFM); break; case PPC_INTERRUPT_EBB: /* EBB exception */ @@ -2330,7 +2328,6 @@ static void p9_deliver_interrupt(CPUPPCState *env, int interrupt) powerpc_excp(cpu, POWERPC_EXCP_SDOOR_HV); break; case PPC_INTERRUPT_PERFM: - env->pending_interrupts &= ~PPC_INTERRUPT_PERFM; powerpc_excp(cpu, POWERPC_EXCP_PERFM); break; case PPC_INTERRUPT_EBB: /* EBB exception */ @@ -2444,7 +2441,6 @@ static void ppc_deliver_interrupt(CPUPPCState *env, int interrupt) powerpc_excp(cpu, POWERPC_EXCP_SDOOR_HV); break; case PPC_INTERRUPT_PERFM: - env->pending_interrupts &= ~PPC_INTERRUPT_PERFM; powerpc_excp(cpu, POWERPC_EXCP_PERFM); break; case PPC_INTERRUPT_THERM: /* Thermal interrupt */ |