target/ppc: Add POWER9/ISAv3.00 to compat_table

compat_table contains the list of logical pvr compat modes which a cpu can
operate in. It is a list of struct CompatInfo which contains the given pvr
value for a compat mode, the pcr bits which should be set to operate in
that compat mode, the pcr level which must be present in pcr_supported for
a processor to support that compat mode and the max threads possible in
that compat mode.

Add an entry for the POWER9/ISAv3.00 logical pvr which represents a
processor running with support for logical pvr 0x0f000005. A processor
running in this mode should have PCR_COMPAT_3_00 set in the pcr (if
available in pcr_mask) and should have PCR_COMPAT_3_00 in pcr_supported
to indicate that it is capable of running in this compat mode.

Also add PCR_COMPAT_3_00 to the bits which must be set for all previous
compat modes. Since no processor models contain this bit yet in pcr_mask
it will never be set, but this ensures we don't forget to in the future.
Signed-off-by: NSuraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

target/ppc/compat.c

@@ -39,29 +39,35 @@ static const CompatInfo compat_table[] = {
      */
     { /* POWER6, ISA2.05 */
         .pvr = CPU_POWERPC_LOGICAL_2_05,
-        .pcr = PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_COMPAT_2_05
-               | PCR_TM_DIS | PCR_VSX_DIS,
+        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 |
+               PCR_COMPAT_2_05 | PCR_TM_DIS | PCR_VSX_DIS,
         .pcr_level = PCR_COMPAT_2_05,
         .max_threads = 2,
     },
     { /* POWER7, ISA2.06 */
         .pvr = CPU_POWERPC_LOGICAL_2_06,
-        .pcr = PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_threads = 4,
     },
     {
         .pvr = CPU_POWERPC_LOGICAL_2_06_PLUS,
-        .pcr = PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
+        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07 | PCR_COMPAT_2_06 | PCR_TM_DIS,
         .pcr_level = PCR_COMPAT_2_06,
         .max_threads = 4,
     },
     { /* POWER8, ISA2.07 */
         .pvr = CPU_POWERPC_LOGICAL_2_07,
-        .pcr = PCR_COMPAT_2_07,
+        .pcr = PCR_COMPAT_3_00 | PCR_COMPAT_2_07,
         .pcr_level = PCR_COMPAT_2_07,
         .max_threads = 8,
     },
+    { /* POWER9, ISA3.00 */
+        .pvr = CPU_POWERPC_LOGICAL_3_00,
+        .pcr = PCR_COMPAT_3_00,
+        .pcr_level = PCR_COMPAT_3_00,
+        .max_threads = 4,
+    },
 };
 
 static const CompatInfo *compat_by_pvr(uint32_t pvr)