target/ppc: Introduce 'PowerPCCPUClass::spapr_logical_pvr'

Introduce 'PnvChipClass::spapr_logical_pvr' to know corresponding logical
PVR of a PowerPC CPU.
This helps to have a one-to-one mapping between PVR and logical PVR for
a CPU, and used in a later commit to handle cases where PCR of two
generations of Power chip is same, which causes regressions with
compat-mode.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Aditya Gupta <adityag@linux.ibm.com>
Tested-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index b838bc2ab9bd0d13ff50c8e9900c53ed74c4b978..daa12f87334bd37f7626951295f07f4215481996 100644 (file)
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1473,6 +1473,7 @@ struct PowerPCCPUClass {
     void (*parent_parse_features)(const char *type, char *str, Error **errp);
 
     uint32_t pvr;
+    uint32_t spapr_logical_pvr;
     /*
      * If @best is false, match if pcc is in the family of pvr
      * Else match only if pcc is the best match for pvr in this family.

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 7c3716b56f7d7e36dc5ae34382304536bdfb1e53..bc8ec77fa0aeb67887b0e3f7b313b886d01175aa 100644 (file)
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -6154,6 +6154,7 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
 
     dc->fw_name = "PowerPC,POWER7";
     dc->desc = "POWER7";
+    pcc->spapr_logical_pvr = CPU_POWERPC_LOGICAL_2_06_PLUS;
     pcc->pvr_match = ppc_pvr_match_power7;
     pcc->pcr_mask = PCR_VEC_DIS | PCR_VSX_DIS | PCR_COMPAT_2_05;
     pcc->pcr_supported = PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
@@ -6317,6 +6318,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
 
     dc->fw_name = "PowerPC,POWER8";
     dc->desc = "POWER8";
+    pcc->spapr_logical_pvr = CPU_POWERPC_LOGICAL_2_07;
     pcc->pvr_match = ppc_pvr_match_power8;
     pcc->pcr_mask = PCR_TM_DIS | PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
     pcc->pcr_supported = PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_COMPAT_2_05;
@@ -6510,6 +6512,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
 
     dc->fw_name = "PowerPC,POWER9";
     dc->desc = "POWER9";
+    pcc->spapr_logical_pvr = CPU_POWERPC_LOGICAL_3_00;
     pcc->pvr_match = ppc_pvr_match_power9;
     pcc->pcr_mask = PPC_PCR_MASK_POWER9;
     pcc->pcr_supported = PPC_PCR_SUPPORTED_POWER9;
@@ -6644,6 +6647,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
 
     dc->fw_name = "PowerPC,POWER10";
     dc->desc = "POWER10";
+    pcc->spapr_logical_pvr = CPU_POWERPC_LOGICAL_3_10;
     pcc->pvr_match = ppc_pvr_match_power10;
     pcc->pcr_mask = PPC_PCR_MASK_POWER10;
     pcc->pcr_supported = PPC_PCR_SUPPORTED_POWER10;