Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-3.1-20180907' into staging

ppc patch queue 2018-09-07

Here's another pull request for qemu-3.1.  No real theme here, just an
assortment of various fixes.  Probably the most notable thing is the
removal of the ppcemb target which has been deprecated for some time
now.

# gpg: Signature made Fri 07 Sep 2018 08:30:02 BST
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-3.1-20180907:
  target-ppc: Extend HWCAP2 bits for ISA 3.0
  target/ppc/kvm: set vcpu as online/offline
  Fix a deadlock case in the CPU hotplug flow
  spapr: Correct reference count on spapr-cpu-core
  mac_newworld: implement custom FWPathProvider
  uninorth: add ofw-addr property to allow correct fw path generation
  mac_oldworld: implement custom FWPathProvider
  grackle: set device fw_name and address for correct fw path generation
  macio: add addr property to macio IDE object
  macio: add macio bus to help with fw path generation
  macio: move MACIOIDEState type declarations to macio.h
  spapr_pci: fix potential NULL pointer dereference
  spapr: fix leak of rev array
  ppc: Remove deprecated ppcemb target

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

6 files changed, 21 insertions, 58 deletions

diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h
index 433a71e484..4ea67692e2 100644
--- a/target/ppc/cpu-qom.h
+++ b/target/ppc/cpu-qom.h
@@ -24,8 +24,6 @@
 
 #ifdef TARGET_PPC64
 #define TYPE_POWERPC_CPU "powerpc64-cpu"
-#elif defined(TARGET_PPCEMB)
-#define TYPE_POWERPC_CPU "embedded-powerpc-cpu"
 #else
 #define TYPE_POWERPC_CPU "powerpc-cpu"
 #endif
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index ec149349e2..b5b8f6f440 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -52,23 +52,7 @@
 #else /* defined (TARGET_PPC64) */
 /* PowerPC 32 definitions */
 #define TARGET_LONG_BITS 32
-
-#if defined(TARGET_PPCEMB)
-/* Specific definitions for PowerPC embedded */
-/* BookE have 36 bits physical address space */
-#if defined(CONFIG_USER_ONLY)
-/* It looks like a lot of Linux programs assume page size
- * is 4kB long. This is evil, but we have to deal with it...
- */
-#define TARGET_PAGE_BITS 12
-#else /* defined(CONFIG_USER_ONLY) */
-/* Pages can be 1 kB small */
-#define TARGET_PAGE_BITS 10
-#endif /* defined(CONFIG_USER_ONLY) */
-#else /* defined(TARGET_PPCEMB) */
-/* "standard" PowerPC 32 definitions */
 #define TARGET_PAGE_BITS 12
-#endif /* defined(TARGET_PPCEMB) */
 
 #define TARGET_PHYS_ADDR_SPACE_BITS 36
 #define TARGET_VIRT_ADDR_SPACE_BITS 32
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index 9211ee2ee1..30aeafa7de 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -1315,9 +1315,7 @@ int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level)
     return 0;
 }
 
-#if defined(TARGET_PPCEMB)
-#define PPC_INPUT_INT PPC40x_INPUT_INT
-#elif defined(TARGET_PPC64)
+#if defined(TARGET_PPC64)
 #define PPC_INPUT_INT PPC970_INPUT_INT
 #else
 #define PPC_INPUT_INT PPC6xx_INPUT_INT
@@ -2785,3 +2783,12 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu)
 
     return !kvmppc_is_pr(cs->kvm_state);
 }
+
+void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online)
+{
+    CPUState *cs = CPU(cpu);
+
+    if (kvm_enabled()) {
+        kvm_set_one_reg(cs, KVM_REG_PPC_ONLINE, &online);
+    }
+}
diff --git a/target/ppc/kvm_ppc.h b/target/ppc/kvm_ppc.h
index 657582bb32..f696c6e498 100644
--- a/target/ppc/kvm_ppc.h
+++ b/target/ppc/kvm_ppc.h
@@ -72,6 +72,7 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu);
 
 bool kvmppc_hpt_needs_host_contiguous_pages(void);
 void kvm_check_mmu(PowerPCCPU *cpu, Error **errp);
+void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online);
 
 #else
 
@@ -187,6 +188,12 @@ static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu,
     return 0;
 }
 
+static inline void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu,
+                                             unsigned int online)
+{
+    return;
+}
+
 #ifndef CONFIG_USER_ONLY
 static inline bool kvmppc_spapr_use_multitce(void)
 {
diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
index e6739e6c24..04f8317ea1 100644
--- a/target/ppc/mmu_helper.c
+++ b/target/ppc/mmu_helper.c
@@ -2363,12 +2363,12 @@ void helper_4xx_tlbwe_hi(CPUPPCState *env, target_ulong entry,
     tlb->size = booke_tlb_to_page_size((val >> PPC4XX_TLBHI_SIZE_SHIFT)
                                        & PPC4XX_TLBHI_SIZE_MASK);
     /* We cannot handle TLB size < TARGET_PAGE_SIZE.
-     * If this ever occurs, one should use the ppcemb target instead
-     * of the ppc or ppc64 one
+     * If this ever occurs, we should implement TARGET_PAGE_BITS_VARY
      */
     if ((val & PPC4XX_TLBHI_V) && tlb->size < TARGET_PAGE_SIZE) {
         cpu_abort(cs, "TLB size " TARGET_FMT_lu " < %u "
-                  "are not supported (%d)\n",
+                  "are not supported (%d)\n"
+                  "Please implement TARGET_PAGE_BITS_VARY\n",
                   tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7));
     }
     tlb->EPN = val & ~(tlb->size - 1);
diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c
index d920d3e538..263e63cb03 100644
--- a/target/ppc/translate_init.inc.c
+++ b/target/ppc/translate_init.inc.c
@@ -9647,17 +9647,6 @@ static int ppc_fixup_cpu(PowerPCCPU *cpu)
     return 0;
 }
 
-static inline bool ppc_cpu_is_valid(PowerPCCPUClass *pcc)
-{
-#ifdef TARGET_PPCEMB
-    return pcc->mmu_model == POWERPC_MMU_BOOKE ||
-           pcc->mmu_model == POWERPC_MMU_SOFT_4xx ||
-           pcc->mmu_model == POWERPC_MMU_SOFT_4xx_Z;
-#else
-    return true;
-#endif
-}
-
 static void ppc_cpu_realize(DeviceState *dev, Error **errp)
 {
     CPUState *cs = CPU(dev);
@@ -9681,8 +9670,6 @@ static void ppc_cpu_realize(DeviceState *dev, Error **errp)
         }
     }
 
-    assert(ppc_cpu_is_valid(pcc));
-
     create_ppc_opcodes(cpu, &local_err);
     if (local_err != NULL) {
         error_propagate(errp, local_err);
@@ -9933,10 +9920,6 @@ static gint ppc_cpu_compare_class_pvr(gconstpointer a, gconstpointer b)
         return -1;
     }
 
-    if (!ppc_cpu_is_valid(pcc)) {
-        return -1;
-    }
-
     return pcc->pvr == pvr ? 0 : -1;
 }
 
@@ -9967,10 +9950,6 @@ static gint ppc_cpu_compare_class_pvr_mask(gconstpointer a, gconstpointer b)
         return -1;
     }
 
-    if (!ppc_cpu_is_valid(pcc)) {
-        return -1;
-    }
-
     if (pcc->pvr_match(pcc, pvr)) {
         return 0;
     }
@@ -10036,11 +10015,7 @@ static ObjectClass *ppc_cpu_class_by_name(const char *name)
     g_free(typename);
     g_free(cpu_model);
 
-    if (oc && ppc_cpu_is_valid(POWERPC_CPU_CLASS(oc))) {
-        return oc;
-    }
-
-    return NULL;
+    return oc;
 }
 
 static void ppc_cpu_parse_featurestr(const char *type, char *features,
@@ -10146,9 +10121,6 @@ static void ppc_cpu_list_entry(gpointer data, gpointer user_data)
     char *name;
     int i;
 
-    if (!ppc_cpu_is_valid(pcc)) {
-        return;
-    }
     if (unlikely(strcmp(typename, TYPE_HOST_POWERPC_CPU) == 0)) {
         return;
     }
@@ -10206,11 +10178,6 @@ static void ppc_cpu_defs_entry(gpointer data, gpointer user_data)
     const char *typename;
     CpuDefinitionInfoList *entry;
     CpuDefinitionInfo *info;
-    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
-
-    if (!ppc_cpu_is_valid(pcc)) {
-        return;
-    }
 
     typename = object_class_get_name(oc);
     info = g_malloc0(sizeof(*info));