target/ppc: Change tlbie invalid fields for POWER9 support

The tlbie[l] instructions are used to invalidate TLB entries used to cache
address translations.

In ISAv3.00 (POWER9) more fields were added to the tblie[l] instructions
which were previously invalid. We don't care about any of these new fields
since we just invalidate the whole world anyway but we need to not
cause an illegal instruction exception when the instructions are called.
We also don't want to allow an older processor to have these fields set
since that would be invalid.

Add a new GEN_HANDLER for the ISAv3 instructions with the correct invalid
mask. These will only be generated to a POWER9 processor for now based on
the instruction flag. Also remove the PPC_MEM_TLBIE instruction flag from
the POWER9 processor definition to ensure the old tlbie isn't generated.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 1ce6ab19f8afb744272ea36315df9c375f9a49a9..c0cd64d927c234dcb870090f38759cf2bb53bb07 100644 (file)
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -6578,6 +6578,8 @@ GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM_TLBIA),
  * different ISA versions */
 GEN_HANDLER(tlbiel, 0x1F, 0x12, 0x08, 0x001F0001, PPC_MEM_TLBIE),
 GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x001F0001, PPC_MEM_TLBIE),
+GEN_HANDLER_E(tlbiel, 0x1F, 0x12, 0x08, 0x00100001, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E(tlbie, 0x1F, 0x12, 0x09, 0x00100001, PPC_NONE, PPC2_ISA300),
 GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFF801, PPC_MEM_TLBSYNC),
 #if defined(TARGET_PPC64)
 GEN_HANDLER(slbia, 0x1F, 0x12, 0x0F, 0x031FFC01, PPC_SLBI),

diff --git a/target/ppc/translate_init.c b/target/ppc/translate_init.c
index 9b048cd1f35f8c824aac1e53dd330e7ac847481f..fda30b0e1a40debcd0116a129bfdf5a5796a5416 100644 (file)
--- a/target/ppc/translate_init.c
+++ b/target/ppc/translate_init.c
@@ -8960,7 +8960,7 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
                        PPC_FLOAT_EXT |
                        PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
                        PPC_MEM_SYNC | PPC_MEM_EIEIO |
-                       PPC_MEM_TLBIE | PPC_MEM_TLBSYNC |
+                       PPC_MEM_TLBSYNC |
                        PPC_64B | PPC_64BX | PPC_ALTIVEC |
                        PPC_SEGMENT_64B | PPC_SLBI |
                        PPC_POPCNTB | PPC_POPCNTWD |