From 5e00afd3ff0086e4744631dee0ac86b05a765e4b Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 25 Jun 2014 17:41:50 +1000
Subject: [PATCH] target-ppc: Add support for POWER8 pvr 0x4D0000

At the moment QEMU knows about one version of POWER8 CPU with
PVR 0x4B.0000. This CPU class is defined as "POWER8". The linux
kernel names it as "POWER8E" which is different from the name QEMU uses.

Now we get another version of POWER8 which is architecturally equivalent
to POWER8E but has different PVR 0x4D.0000 so QEMU fails to find
a PPC CPU class on these machines. The linux kernel names these CPUs as
"POWER8".

This renames the existing "POWER8" to "POWER8E" to be more precise and
stay in sync with the linux kernel.

This adds a new "POWER8" family which calls POWER8E class init function
and defines own PVR mask (used to match a CPU class) and desc (used to
create dynamic version-less CPU class).

This does not change CPU class fw_name attribute as the host POWER8
firmware keeps using "PowerPC,POWER8" on both POWER8 and POWER8E.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
(cherry picked from commit f6c3ebcc3b117311389bac58cffc4ad7c3016e1c)
---
 target-ppc/cpu-models.c     |  3 +++
 target-ppc/cpu-models.h     |  7 +++++--
 target-ppc/translate_init.c | 20 ++++++++++++++++----
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/target-ppc/cpu-models.c b/target-ppc/cpu-models.c
index 57cb4e48fb..05d088ae44 100644
--- a/target-ppc/cpu-models.c
+++ b/target-ppc/cpu-models.c
@@ -1138,6 +1138,8 @@
                 "POWER7 v2.3")
     POWERPC_DEF("POWER7+_v2.1",  CPU_POWERPC_POWER7P_v21,            POWER7P,
                 "POWER7+ v2.1")
+    POWERPC_DEF("POWER8E_v1.0",  CPU_POWERPC_POWER8E_v10,            POWER8E,
+                "POWER8E v1.0")
     POWERPC_DEF("POWER8_v1.0",   CPU_POWERPC_POWER8_v10,             POWER8,
                 "POWER8 v1.0")
     POWERPC_DEF("970",           CPU_POWERPC_970,                    970,
@@ -1386,6 +1388,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
     { "POWER5gs", "POWER5+" },
     { "POWER7", "POWER7_v2.3" },
     { "POWER7+", "POWER7+_v2.1" },
+    { "POWER8E", "POWER8E_v1.0" },
     { "POWER8", "POWER8_v1.0" },
     { "970fx", "970fx_v3.1" },
     { "970mp", "970mp_v1.1" },
diff --git a/target-ppc/cpu-models.h b/target-ppc/cpu-models.h
index db75896012..c39d03a504 100644
--- a/target-ppc/cpu-models.h
+++ b/target-ppc/cpu-models.h
@@ -559,9 +559,12 @@ enum {
     CPU_POWERPC_POWER7P_BASE       = 0x004A0000,
     CPU_POWERPC_POWER7P_MASK       = 0xFFFF0000,
     CPU_POWERPC_POWER7P_v21        = 0x004A0201,
-    CPU_POWERPC_POWER8_BASE        = 0x004B0000,
+    CPU_POWERPC_POWER8E_BASE       = 0x004B0000,
+    CPU_POWERPC_POWER8E_MASK       = 0xFFFF0000,
+    CPU_POWERPC_POWER8E_v10        = 0x004B0100,
+    CPU_POWERPC_POWER8_BASE        = 0x004D0000,
     CPU_POWERPC_POWER8_MASK        = 0xFFFF0000,
-    CPU_POWERPC_POWER8_v10         = 0x004B0100,
+    CPU_POWERPC_POWER8_v10         = 0x004D0100,
     CPU_POWERPC_970                = 0x00390202,
     CPU_POWERPC_970FX_v10          = 0x00391100,
     CPU_POWERPC_970FX_v20          = 0x003C0200,
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 49f52e3f21..2b95fe70d9 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7253,16 +7253,16 @@ static void init_proc_POWER8(CPUPPCState *env)
                  0x00000000);
 }
 
-POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
+POWERPC_FAMILY(POWER8E)(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
     PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
 
     dc->fw_name = "PowerPC,POWER8";
-    dc->desc = "POWER8";
+    dc->desc = "POWER8E";
     dc->props = powerpc_servercpu_properties;
-    pcc->pvr = CPU_POWERPC_POWER8_BASE;
-    pcc->pvr_mask = CPU_POWERPC_POWER8_MASK;
+    pcc->pvr = CPU_POWERPC_POWER8E_BASE;
+    pcc->pvr_mask = CPU_POWERPC_POWER8E_MASK;
     pcc->pcr_mask = PCR_COMPAT_2_05 | PCR_COMPAT_2_06;
     pcc->init_proc = init_proc_POWER8;
     pcc->check_pow = check_pow_nocheck;
@@ -7300,6 +7300,18 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
     pcc->l1_icache_size = 0x8000;
     pcc->interrupts_big_endian = ppc_cpu_interrupts_big_endian_lpcr;
 }
+
+POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+
+    ppc_POWER8E_cpu_family_class_init(oc, data);
+
+    dc->desc = "POWER8";
+    pcc->pvr = CPU_POWERPC_POWER8_BASE;
+    pcc->pvr_mask = CPU_POWERPC_POWER8_MASK;
+}
 #endif /* defined (TARGET_PPC64) */
 
 
