[RFC PATCH 2/6] ppc/pnv: Activate support for the Processor Attention instruction

[Leandro Lupori]

From: Cédric Le Goater <clg@kaod.org>

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Leandro Lupori <leandro.lupori@eldorado.org.br>
---
 hw/ppc/pnv_core.c         | 6 ++++++
 include/hw/ppc/pnv_core.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c
index 19e8eb885f..eb59b44a6c 100644
--- a/hw/ppc/pnv_core.c
+++ b/hw/ppc/pnv_core.c
@@ -46,6 +46,7 @@ static void pnv_core_cpu_reset(PnvCore *pc, PowerPCCPU *cpu)
     CPUState *cs = CPU(cpu);
     CPUPPCState *env = &cpu->env;
     PnvChipClass *pcc = PNV_CHIP_GET_CLASS(pc->chip);
+    PnvCoreClass *pcorec = PNV_CORE_GET_CLASS(pc);
 
     cpu_reset(cs);
 
@@ -57,6 +58,8 @@ static void pnv_core_cpu_reset(PnvCore *pc, PowerPCCPU *cpu)
     env->nip = 0x10;
     env->msr |= MSR_HVB; /* Hypervisor mode */
     env->spr[SPR_HRMOR] = pc->hrmor;
+    env->spr[SPR_HID0] |= pcorec->attn;
+
     hreg_compute_hflags(env);
 
     pcc->intc_reset(pc->chip, cpu);
@@ -300,6 +303,7 @@ static void pnv_core_power8_class_init(ObjectClass *oc, 
void *data)
     PnvCoreClass *pcc = PNV_CORE_CLASS(oc);
 
     pcc->xscom_ops = &pnv_core_power8_xscom_ops;
+    pcc->attn = HID0_ATTN;
 }
 
 static void pnv_core_power9_class_init(ObjectClass *oc, void *data)
@@ -307,6 +311,7 @@ static void pnv_core_power9_class_init(ObjectClass *oc, 
void *data)
     PnvCoreClass *pcc = PNV_CORE_CLASS(oc);
 
     pcc->xscom_ops = &pnv_core_power9_xscom_ops;
+    pcc->attn = HID0_POWER9_ATTN;
 }
 
 static void pnv_core_power10_class_init(ObjectClass *oc, void *data)
@@ -315,6 +320,7 @@ static void pnv_core_power10_class_init(ObjectClass *oc, 
void *data)
 
     /* TODO: Use the P9 XSCOMs for now on P10 */
     pcc->xscom_ops = &pnv_core_power9_xscom_ops;
+    pcc->attn = HID0_POWER9_ATTN;
 }
 
 static void pnv_core_class_init(ObjectClass *oc, void *data)
diff --git a/include/hw/ppc/pnv_core.h b/include/hw/ppc/pnv_core.h
index c22eab2e1f..04e1fec1f3 100644
--- a/include/hw/ppc/pnv_core.h
+++ b/include/hw/ppc/pnv_core.h
@@ -47,6 +47,7 @@ struct PnvCoreClass {
     DeviceClass parent_class;
 
     const MemoryRegionOps *xscom_ops;
+    uint64_t attn;
 };
 
 #define PNV_CORE_TYPE_SUFFIX "-" TYPE_PNV_CORE
-- 
2.25.1