[Qemu-devel] [PATCH v2 4/7] ppc/pnv: add a core mask to PnvChip

[Cédric Le Goater]

This will be used to build real HW ids for the cores and enforce some
limits on the available cores per chip.

Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
 hw/ppc/pnv.c         | 27 +++++++++++++++++++++++++++
 include/hw/ppc/pnv.h |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index a6e7f66b2c0a..b6efb5e3ef07 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -236,6 +236,27 @@ static void ppc_powernv_init(MachineState *machine)
     g_free(chip_typename);
 }
 
+/* Allowed core identifiers on a POWER8 Processor Chip :
+ *
+ * <EX0 reserved>
+ *  EX1  - Venice only
+ *  EX2  - Venice only
+ *  EX3  - Venice only
+ *  EX4
+ *  EX5
+ *  EX6
+ * <EX7,8 reserved> <reserved>
+ *  EX9  - Venice only
+ *  EX10 - Venice only
+ *  EX11 - Venice only
+ *  EX12
+ *  EX13
+ *  EX14
+ * <EX15 reserved>
+ */
+#define POWER8E_CORE_MASK  (~0xffff8f8f)
+#define POWER8_CORE_MASK   (~0xffff8181)
+
 static void pnv_chip_power8nvl_realize(PnvChip *chip, Error **errp)
 {
     ;
@@ -250,6 +271,8 @@ static void pnv_chip_power8nvl_class_init(ObjectClass 
*klass, void *data)
     k->cpu_model = "POWER8NVL";
     k->chip_type = PNV_CHIP_P8NVL;
     k->chip_f000f = 0x120d304980000000ull;
+    k->cores_max = 12;
+    k->cores_mask = POWER8_CORE_MASK;
     dc->desc = "PowerNV Chip POWER8NVL";
 }
 
@@ -274,6 +297,8 @@ static void pnv_chip_power8_class_init(ObjectClass *klass, 
void *data)
     k->cpu_model = "POWER8";
     k->chip_type = PNV_CHIP_P8;
     k->chip_f000f = 0x220ea04980000000ull;
+    k->cores_max = 12;
+    k->cores_mask = POWER8_CORE_MASK;
     dc->desc = "PowerNV Chip POWER8";
 }
 
@@ -298,6 +323,8 @@ static void pnv_chip_power8e_class_init(ObjectClass *klass, 
void *data)
     k->cpu_model = "POWER8E";
     k->chip_type = PNV_CHIP_P8E;
     k->chip_f000f = 0x221ef04980000000ull;
+    k->cores_max = 6;
+    k->cores_mask = POWER8E_CORE_MASK;
     dc->desc = "PowerNV Chip POWER8E";
 }
 
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index bc6e1f80096b..987bc70245a7 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -49,6 +49,8 @@ typedef struct PnvChipClass {
     /*< private >*/
     SysBusDeviceClass parent_class;
     /*< public >*/
+    uint32_t   cores_max;
+    uint32_t   cores_mask;
     const char *cpu_model;
     PnvChipType  chip_type;
     uint64_t     chip_f000f;
-- 
2.7.4