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target/ppc: Remove unnecessary POWERPC_MMU_V3 flag from mmu_model 

The only place we test this flag is in conjunction with
ppc64_use_proc_tbl().  That checks for the LPCR_UPRT bit, which we already
ensure can't be set except on a machine with a v3 MMU (i.e. POWER9).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
David Gibson 2018-03-23 16:42:45 +11:00
parent 26cd35b861
commit ca79b3b7fd
2 changed files with 2 additions and 4 deletions
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4
target/ppc/cpu-qom.h
View File

@ -68,7 +68,6 @@ enum powerpc_mmu_t {
/* PowerPC 601 MMU model (specific BATs format) */
POWERPC_MMU_601 = 0x0000000A,
#define POWERPC_MMU_64 0x00010000
#define POWERPC_MMU_V3 0x00100000 /* ISA V3.00 MMU Support */
/* 64 bits PowerPC MMU */
POWERPC_MMU_64B = POWERPC_MMU_64 | 0x00000001,
/* Architecture 2.03 and later (has LPCR) */
@ -78,8 +77,7 @@ enum powerpc_mmu_t {
/* Architecture 2.07 variant */
POWERPC_MMU_2_07 = POWERPC_MMU_64 | 0x00000004,
/* Architecture 3.00 variant */
POWERPC_MMU_3_00 = POWERPC_MMU_64 | POWERPC_MMU_V3
| 0x00000005,
POWERPC_MMU_3_00 = POWERPC_MMU_64 | 0x00000005,
};
#define POWERPC_MMU_VER(x) ((x) & (POWERPC_MMU_64 | 0xFFFF))
#define POWERPC_MMU_VER_64B POWERPC_MMU_VER(POWERPC_MMU_64B)

2
target/ppc/mmu-hash64.c
View File

@ -761,7 +761,7 @@ int ppc_hash64_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr,
slb = slb_lookup(cpu, eaddr);
if (!slb) {
/* No entry found, check if in-memory segment tables are in use */
if ((env->mmu_model & POWERPC_MMU_V3) && ppc64_use_proc_tbl(cpu)) {
if (ppc64_use_proc_tbl(cpu)) {
/* TODO - Unsupported */
error_report("Segment Table Support Unimplemented");
exit(1);