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Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/cpu.h11
-rw-r--r--target-ppc/helper.c80
-rw-r--r--target-ppc/kvm.c2
-rw-r--r--target-ppc/machine.c6
-rw-r--r--target-ppc/translate.c2
-rw-r--r--target-ppc/translate_init.c7
6 files changed, 62 insertions, 46 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 37dde390a8..ead4566f4f 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -359,6 +359,14 @@ union ppc_tlb_t {
};
#endif
+#define SDR_32_HTABORG 0xFFFF0000UL
+#define SDR_32_HTABMASK 0x000001FFUL
+
+#if defined(TARGET_PPC64)
+#define SDR_64_HTABORG 0xFFFFFFFFFFFC0000ULL
+#define SDR_64_HTABSIZE 0x000000000000001FULL
+#endif /* defined(TARGET_PPC64 */
+
typedef struct ppc_slb_t ppc_slb_t;
struct ppc_slb_t {
uint64_t esid;
@@ -642,7 +650,8 @@ struct CPUPPCState {
int slb_nr;
#endif
/* segment registers */
- target_ulong sdr1;
+ target_phys_addr_t htab_base;
+ target_phys_addr_t htab_mask;
target_ulong sr[32];
/* BATs */
int nb_BATs;
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 7ca33cbc75..68d2d9c0e2 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -788,20 +788,19 @@ int ppc_load_slb_vsid (CPUPPCState *env, target_ulong rb, target_ulong *rt)
#endif /* defined(TARGET_PPC64) */
/* Perform segment based translation */
-static inline target_phys_addr_t get_pgaddr(target_phys_addr_t sdr1,
- int sdr_sh,
- target_phys_addr_t hash,
- target_phys_addr_t mask)
+static inline target_phys_addr_t get_pgaddr(target_phys_addr_t htab_base,
+ target_phys_addr_t htab_mask,
+ target_phys_addr_t hash)
{
- return (sdr1 & ((target_phys_addr_t)(-1ULL) << sdr_sh)) | (hash & mask);
+ return htab_base | (hash & htab_mask);
}
static inline int get_segment(CPUState *env, mmu_ctx_t *ctx,
target_ulong eaddr, int rw, int type)
{
- target_phys_addr_t sdr, hash, mask, sdr_mask, htab_mask;
+ target_phys_addr_t hash;
target_ulong sr, vsid, vsid_mask, pgidx, page_mask;
- int ds, vsid_sh, sdr_sh, pr, target_page_bits;
+ int ds, vsid_sh, pr, target_page_bits;
int ret, ret2;
pr = msr_pr;
@@ -826,8 +825,6 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx,
ctx->eaddr = eaddr;
vsid_mask = 0x00003FFFFFFFFF80ULL;
vsid_sh = 7;
- sdr_sh = 18;
- sdr_mask = 0x3FF80;
} else
#endif /* defined(TARGET_PPC64) */
{
@@ -840,8 +837,6 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx,
vsid = sr & 0x00FFFFFF;
vsid_mask = 0x01FFFFC0;
vsid_sh = 6;
- sdr_sh = 16;
- sdr_mask = 0xFFC0;
target_page_bits = TARGET_PAGE_BITS;
LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip="
TARGET_FMT_lx " lr=" TARGET_FMT_lx
@@ -857,29 +852,26 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx,
if (type != ACCESS_CODE || ctx->nx == 0) {
/* Page address translation */
/* Primary table address */
- sdr = env->sdr1;
pgidx = (eaddr & page_mask) >> target_page_bits;
#if defined(TARGET_PPC64)
if (env->mmu_model & POWERPC_MMU_64) {
- htab_mask = 0x0FFFFFFF >> (28 - (sdr & 0x1F));
/* XXX: this is false for 1 TB segments */
hash = ((vsid ^ pgidx) << vsid_sh) & vsid_mask;
} else
#endif
{
- htab_mask = sdr & 0x000001FF;
hash = ((vsid ^ pgidx) << vsid_sh) & vsid_mask;
}
- mask = (htab_mask << sdr_sh) | sdr_mask;
- LOG_MMU("sdr " TARGET_FMT_plx " sh %d hash " TARGET_FMT_plx
- " mask " TARGET_FMT_plx " " TARGET_FMT_lx "\n",
- sdr, sdr_sh, hash, mask, page_mask);
- ctx->pg_addr[0] = get_pgaddr(sdr, sdr_sh, hash, mask);
+ LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
+ " hash " TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, hash);
+ ctx->pg_addr[0] = get_pgaddr(env->htab_base, env->htab_mask, hash);
/* Secondary table address */
hash = (~hash) & vsid_mask;
- LOG_MMU("sdr " TARGET_FMT_plx " sh %d hash " TARGET_FMT_plx
- " mask " TARGET_FMT_plx "\n", sdr, sdr_sh, hash, mask);
- ctx->pg_addr[1] = get_pgaddr(sdr, sdr_sh, hash, mask);
+ LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
+ " hash " TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, hash);
+ ctx->pg_addr[1] = get_pgaddr(env->htab_base, env->htab_mask, hash);
#if defined(TARGET_PPC64)
if (env->mmu_model & POWERPC_MMU_64) {
/* Only 5 bits of the page index are used in the AVPN */
@@ -901,19 +893,22 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx,
/* Software TLB search */
ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
} else {
- LOG_MMU("0 sdr1=" TARGET_FMT_plx " vsid=" TARGET_FMT_lx " "
- "api=" TARGET_FMT_lx " hash=" TARGET_FMT_plx
- " pg_addr=" TARGET_FMT_plx "\n",
- sdr, vsid, pgidx, hash, ctx->pg_addr[0]);
+ LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx " pg_addr=" TARGET_FMT_plx "\n",
+ env->htab_base, env->htab_mask, vsid, pgidx, hash,
+ ctx->pg_addr[0]);
/* Primary table lookup */
ret = find_pte(env, ctx, 0, rw, type, target_page_bits);
if (ret < 0) {
/* Secondary table lookup */
if (eaddr != 0xEFFFFFFF)
- LOG_MMU("1 sdr1=" TARGET_FMT_plx " vsid=" TARGET_FMT_lx " "
- "api=" TARGET_FMT_lx " hash=" TARGET_FMT_plx
- " pg_addr=" TARGET_FMT_plx "\n", sdr, vsid,
- pgidx, hash, ctx->pg_addr[1]);
+ LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
+ " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
+ " hash=" TARGET_FMT_plx " pg_addr="
+ TARGET_FMT_plx "\n", env->htab_base,
+ env->htab_mask, vsid, pgidx, hash,
+ ctx->pg_addr[1]);
ret2 = find_pte(env, ctx, 1, rw, type,
target_page_bits);
if (ret2 != -1)
@@ -1919,11 +1914,26 @@ void ppc_store_asr (CPUPPCState *env, target_ulong value)
void ppc_store_sdr1 (CPUPPCState *env, target_ulong value)
{
LOG_MMU("%s: " TARGET_FMT_lx "\n", __func__, value);
- if (env->sdr1 != value) {
- /* XXX: for PowerPC 64, should check that the HTABSIZE value
- * is <= 28
- */
- env->sdr1 = value;
+ if (env->spr[SPR_SDR1] != value) {
+ env->spr[SPR_SDR1] = value;
+#if defined(TARGET_PPC64)
+ if (env->mmu_model & POWERPC_MMU_64) {
+ target_ulong htabsize = value & SDR_64_HTABSIZE;
+
+ if (htabsize > 28) {
+ fprintf(stderr, "Invalid HTABSIZE 0x" TARGET_FMT_lx
+ " stored in SDR1\n", htabsize);
+ htabsize = 28;
+ }
+ env->htab_mask = (1ULL << (htabsize + 18)) - 1;
+ env->htab_base = value & SDR_64_HTABORG;
+ } else
+#endif /* defined(TARGET_PPC64) */
+ {
+ /* FIXME: Should check for valid HTABMASK values */
+ env->htab_mask = ((value & SDR_32_HTABMASK) << 16) | 0xFFFF;
+ env->htab_base = value & SDR_32_HTABORG;
+ }
tlb_flush(env, 1);
}
}
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 0e2e67b34d..2cfb24bb1d 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -169,7 +169,7 @@ int kvm_arch_get_registers(CPUState *env)
#ifdef KVM_CAP_PPC_SEGSTATE
if (kvm_check_extension(env->kvm_state, KVM_CAP_PPC_SEGSTATE)) {
- env->sdr1 = sregs.u.s.sdr1;
+ ppc_store_sdr1(env, sregs.u.s.sdr1);
/* Sync SLB */
#ifdef TARGET_PPC64
diff --git a/target-ppc/machine.c b/target-ppc/machine.c
index 67de951959..0c1986e528 100644
--- a/target-ppc/machine.c
+++ b/target-ppc/machine.c
@@ -37,7 +37,7 @@ void cpu_save(QEMUFile *f, void *opaque)
qemu_put_betls(f, &env->asr);
qemu_put_sbe32s(f, &env->slb_nr);
#endif
- qemu_put_betls(f, &env->sdr1);
+ qemu_put_betls(f, &env->spr[SPR_SDR1]);
for (i = 0; i < 32; i++)
qemu_put_betls(f, &env->sr[i]);
for (i = 0; i < 2; i++)
@@ -93,6 +93,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
{
CPUState *env = (CPUState *)opaque;
unsigned int i, j;
+ target_ulong sdr1;
for (i = 0; i < 32; i++)
qemu_get_betls(f, &env->gpr[i]);
@@ -124,7 +125,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
qemu_get_betls(f, &env->asr);
qemu_get_sbe32s(f, &env->slb_nr);
#endif
- qemu_get_betls(f, &env->sdr1);
+ qemu_get_betls(f, &sdr1);
for (i = 0; i < 32; i++)
qemu_get_betls(f, &env->sr[i]);
for (i = 0; i < 2; i++)
@@ -152,6 +153,7 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
#endif
for (i = 0; i < 1024; i++)
qemu_get_betls(f, &env->spr[i]);
+ ppc_store_sdr1(env, sdr1);
qemu_get_be32s(f, &env->vscr);
qemu_get_be64s(f, &env->spe_acc);
qemu_get_be32s(f, &env->spe_fscr);
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 88681359c7..090795b600 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -9126,7 +9126,7 @@ void cpu_dump_state (CPUState *env, FILE *f, fprintf_function cpu_fprintf,
#if !defined(CONFIG_USER_ONLY)
cpu_fprintf(f, "SRR0 " TARGET_FMT_lx " SRR1 " TARGET_FMT_lx " SDR1 "
TARGET_FMT_lx "\n", env->spr[SPR_SRR0], env->spr[SPR_SRR1],
- env->sdr1);
+ env->spr[SPR_SDR1]);
#endif
#undef RGPL
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index bca85d5073..63664248a4 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -343,11 +343,6 @@ static void spr_write_dbatl_h (void *opaque, int sprn, int gprn)
}
/* SDR1 */
-static void spr_read_sdr1 (void *opaque, int gprn, int sprn)
-{
- tcg_gen_ld_tl(cpu_gpr[gprn], cpu_env, offsetof(CPUState, sdr1));
-}
-
static void spr_write_sdr1 (void *opaque, int sprn, int gprn)
{
gen_helper_store_sdr1(cpu_gpr[gprn]);
@@ -671,7 +666,7 @@ static void gen_spr_ne_601 (CPUPPCState *env)
/* Memory management */
spr_register(env, SPR_SDR1, "SDR1",
SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_sdr1, &spr_write_sdr1,
+ &spr_read_generic, &spr_write_sdr1,
0x00000000);
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 07:39:12 +0000