From 58969eeece99abd6d31d530ad371e789419ec9bf Mon Sep 17 00:00:00 2001 From: David Gibson Date: Fri, 23 Mar 2018 14:11:07 +1100 Subject: [PATCH] target/ppc: Move 1T segment and AMR options to PPCHash64Options MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Currently env->mmu_model is a bit of an unholy mess of an enum of distinct MMU types, with various flag bits as well. This makes which bits of the field should be compared pretty confusing. Make a start on cleaning that up by moving two of the flags bits - POWERPC_MMU_1TSEG and POWERPC_MMU_AMR - which are specific to the 64-bit hash MMU into a new flags field in PPCHash64Options structure. Signed-off-by: David Gibson Reviewed-by: Cédric Le Goater Reviewed-by: Greg Kurz --- hw/ppc/pnv.c | 3 ++- hw/ppc/spapr.c | 2 +- target/ppc/cpu-qom.h | 11 +++-------- target/ppc/kvm.c | 4 ++-- target/ppc/mmu-hash64.c | 6 ++++-- target/ppc/mmu-hash64.h | 8 ++++++++ 6 files changed, 20 insertions(+), 14 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index 3220ef8f791..0e49c5e9b89 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -36,6 +36,7 @@ #include "monitor/monitor.h" #include "hw/intc/intc.h" #include "hw/ipmi/ipmi.h" +#include "target/ppc/mmu-hash64.h" #include "hw/ppc/xics.h" #include "hw/ppc/pnv_xscom.h" @@ -187,7 +188,7 @@ static void pnv_dt_core(PnvChip *chip, PnvCore *pc, void *fdt) _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); } - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (ppc_hash64_has(cpu, PPC_HASH64_1TSEG)) { _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes", segs, sizeof(segs)))); } diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index a4b37226565..9c26dc37e1e 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -557,7 +557,7 @@ static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); } - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (ppc_hash64_has(cpu, PPC_HASH64_1TSEG)) { _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes", segs, sizeof(segs)))); } diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h index 3e5ef7375f9..2bd58b2a841 100644 --- a/target/ppc/cpu-qom.h +++ b/target/ppc/cpu-qom.h @@ -68,22 +68,17 @@ enum powerpc_mmu_t { /* PowerPC 601 MMU model (specific BATs format) */ POWERPC_MMU_601 = 0x0000000A, #define POWERPC_MMU_64 0x00010000 -#define POWERPC_MMU_1TSEG 0x00020000 -#define POWERPC_MMU_AMR 0x00040000 #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) */ POWERPC_MMU_2_03 = POWERPC_MMU_64 | 0x00000002, /* Architecture 2.06 variant */ - POWERPC_MMU_2_06 = POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | 0x00000003, + POWERPC_MMU_2_06 = POWERPC_MMU_64 | 0x00000003, /* Architecture 2.07 variant */ - POWERPC_MMU_2_07 = POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | 0x00000004, + POWERPC_MMU_2_07 = POWERPC_MMU_64 | 0x00000004, /* Architecture 3.00 variant */ - POWERPC_MMU_3_00 = POWERPC_MMU_64 | POWERPC_MMU_1TSEG - | POWERPC_MMU_AMR | POWERPC_MMU_V3 + POWERPC_MMU_3_00 = POWERPC_MMU_64 | POWERPC_MMU_V3 | 0x00000005, }; #define POWERPC_MMU_VER(x) ((x) & (POWERPC_MMU_64 | 0xFFFF)) diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c index c67254accaa..b53af75ecf7 100644 --- a/target/ppc/kvm.c +++ b/target/ppc/kvm.c @@ -302,7 +302,7 @@ static void kvm_get_fallback_smmu_info(PowerPCCPU *cpu, /* HV KVM has backing store size restrictions */ info->flags = KVM_PPC_PAGE_SIZES_REAL; - if (env->mmu_model & POWERPC_MMU_1TSEG) { + if (ppc_hash64_has(cpu, PPC_HASH64_1TSEG)) { info->flags |= KVM_PPC_1T_SEGMENTS; } @@ -482,7 +482,7 @@ static void kvm_fixup_page_sizes(PowerPCCPU *cpu) } env->slb_nr = smmu_info.slb_size; if (!(smmu_info.flags & KVM_PPC_1T_SEGMENTS)) { - env->mmu_model &= ~POWERPC_MMU_1TSEG; + cpu->hash64_opts->flags &= ~PPC_HASH64_1TSEG; } } diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c index 2809c311705..c9ee55e1ea2 100644 --- a/target/ppc/mmu-hash64.c +++ b/target/ppc/mmu-hash64.c @@ -160,7 +160,7 @@ int ppc_store_slb(PowerPCCPU *cpu, target_ulong slot, if (vsid & (SLB_VSID_B & ~SLB_VSID_B_1T)) { return -1; /* Bad segment size */ } - if ((vsid & SLB_VSID_B) && !(env->mmu_model & POWERPC_MMU_1TSEG)) { + if ((vsid & SLB_VSID_B) && !(ppc_hash64_has(cpu, PPC_HASH64_1TSEG))) { return -1; /* 1T segment on MMU that doesn't support it */ } @@ -369,7 +369,7 @@ static int ppc_hash64_amr_prot(PowerPCCPU *cpu, ppc_hash_pte64_t pte) int prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; /* Only recent MMUs implement Virtual Page Class Key Protection */ - if (!(env->mmu_model & POWERPC_MMU_AMR)) { + if (!ppc_hash64_has(cpu, PPC_HASH64_AMR)) { return prot; } @@ -1114,6 +1114,7 @@ void ppc_hash64_finalize(PowerPCCPU *cpu) } const PPCHash64Options ppc_hash64_opts_basic = { + .flags = 0, .sps = { { .page_shift = 12, /* 4K */ .slb_enc = 0, @@ -1127,6 +1128,7 @@ const PPCHash64Options ppc_hash64_opts_basic = { }; const PPCHash64Options ppc_hash64_opts_POWER7 = { + .flags = PPC_HASH64_1TSEG | PPC_HASH64_AMR, .sps = { { .page_shift = 12, /* 4K */ diff --git a/target/ppc/mmu-hash64.h b/target/ppc/mmu-hash64.h index 341c1524c23..b2b5d252382 100644 --- a/target/ppc/mmu-hash64.h +++ b/target/ppc/mmu-hash64.h @@ -153,12 +153,20 @@ struct PPCHash64SegmentPageSizes { }; struct PPCHash64Options { +#define PPC_HASH64_1TSEG 0x00001 +#define PPC_HASH64_AMR 0x00002 + unsigned flags; PPCHash64SegmentPageSizes sps[PPC_PAGE_SIZES_MAX_SZ]; }; extern const PPCHash64Options ppc_hash64_opts_basic; extern const PPCHash64Options ppc_hash64_opts_POWER7; +static inline bool ppc_hash64_has(PowerPCCPU *cpu, unsigned feature) +{ + return !!(cpu->hash64_opts->flags & feature); +} + #endif /* CONFIG_USER_ONLY */ #if defined(CONFIG_USER_ONLY) || !defined(TARGET_PPC64) -- 2.39.5