Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20190821' into staging

ppc patch queue for 2019-08-21

First ppc and spapr pull request for qemu-4.2.  Includes:
   * Some TCG emulation fixes and performance improvements
   * Support for the mffsl instruction in TCG
   * Added missing DPDES SPR
   * Some enhancements to the emulation of the XIVE interrupt
     controller
   * Cleanups to spapr MSI management
   * Some new suspend/resume infrastructure and a draft suspend
     implementation for spapr
   * New spapr hypercall for TPM communication (will be needed for
     secure guests under an Ultravisor)
   * Fix several memory leaks

And a few other assorted fixes.

# gpg: Signature made Wed 21 Aug 2019 08:24:44 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-4.2-20190821: (42 commits)
  ppc: Fix emulated single to double denormalized conversions
  ppc: Fix emulated INFINITY and NAN conversions
  ppc: conform to processor User's Manual for xscvdpspn
  ppc: Add support for 'mffsl' instruction
  target/ppc: Add Directed Privileged Door-bell Exception State (DPDES) SPR
  spapr/xive: Mask the EAS when allocating an IRQ
  spapr: Implement better workaround in spapr-vty device
  spapr/irq: Drop spapr_irq_msi_reset()
  spapr/pci: Free MSIs during reset
  spapr/pci: Consolidate de-allocation of MSIs
  ppc: remove idle_timer logic
  spapr: Implement ibm,suspend-me
  i386: use machine class ->wakeup method
  machine: Add wakeup method to MachineClass
  ppc/xive: Improve 'info pic' support
  ppc/xive: Provide silent escalation support
  ppc/xive: Provide unconditional escalation support
  ppc/xive: Provide escalation support
  ppc/xive: Provide backlog support
  ppc/xive: Implement TM_PULL_OS_CTX special command
  ...

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

1 files changed, 48 insertions, 9 deletions

diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c
index 66d9a732e0..4a21ed7289 100644
--- a/target/ppc/translate_init.inc.c
+++ b/target/ppc/translate_init.inc.c
@@ -8196,6 +8196,18 @@ static void gen_spr_power8_pspb(CPUPPCState *env)
                      KVM_REG_PPC_PSPB, 0);
 }
 
+static void gen_spr_power8_dpdes(CPUPPCState *env)
+{
+#if !defined(CONFIG_USER_ONLY)
+    /* Directed Privileged Door-bell Exception State, used for IPI */
+    spr_register_kvm_hv(env, SPR_DPDES, "DPDES",
+                        SPR_NOACCESS, SPR_NOACCESS,
+                        &spr_read_generic, SPR_NOACCESS,
+                        &spr_read_generic, &spr_write_generic,
+                        KVM_REG_PPC_DPDES, 0x00000000);
+#endif
+}
+
 static void gen_spr_power8_ic(CPUPPCState *env)
 {
 #if !defined(CONFIG_USER_ONLY)
@@ -8627,6 +8639,7 @@ static void init_proc_POWER8(CPUPPCState *env)
     gen_spr_power8_pmu_user(env);
     gen_spr_power8_tm(env);
     gen_spr_power8_pspb(env);
+    gen_spr_power8_dpdes(env);
     gen_spr_vtb(env);
     gen_spr_power8_ic(env);
     gen_spr_power8_book4(env);
@@ -8815,6 +8828,7 @@ static void init_proc_POWER9(CPUPPCState *env)
     gen_spr_power8_pmu_user(env);
     gen_spr_power8_tm(env);
     gen_spr_power8_pspb(env);
+    gen_spr_power8_dpdes(env);
     gen_spr_vtb(env);
     gen_spr_power8_ic(env);
     gen_spr_power8_book4(env);
@@ -9438,14 +9452,13 @@ static void fix_opcode_tables(opc_handler_t **ppc_opcodes)
 static void create_ppc_opcodes(PowerPCCPU *cpu, Error **errp)
 {
     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
-    CPUPPCState *env = &cpu->env;
     opcode_t *opc;
 
-    fill_new_table(env->opcodes, PPC_CPU_OPCODES_LEN);
+    fill_new_table(cpu->opcodes, PPC_CPU_OPCODES_LEN);
     for (opc = opcodes; opc < &opcodes[ARRAY_SIZE(opcodes)]; opc++) {
         if (((opc->handler.type & pcc->insns_flags) != 0) ||
             ((opc->handler.type2 & pcc->insns_flags2) != 0)) {
-            if (register_insn(env->opcodes, opc) < 0) {
+            if (register_insn(cpu->opcodes, opc) < 0) {
                 error_setg(errp, "ERROR initializing PowerPC instruction "
                            "0x%02x 0x%02x 0x%02x", opc->opc1, opc->opc2,
                            opc->opc3);
@@ -9453,7 +9466,7 @@ static void create_ppc_opcodes(PowerPCCPU *cpu, Error **errp)
             }
         }
     }
-    fix_opcode_tables(env->opcodes);
+    fix_opcode_tables(cpu->opcodes);
     fflush(stdout);
     fflush(stderr);
 }
@@ -10021,7 +10034,6 @@ static void ppc_cpu_unrealize(DeviceState *dev, Error **errp)
 {
     PowerPCCPU *cpu = POWERPC_CPU(dev);
     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
-    CPUPPCState *env = &cpu->env;
     Error *local_err = NULL;
     opc_handler_t **table, **table_2;
     int i, j, k;
@@ -10033,11 +10045,11 @@ static void ppc_cpu_unrealize(DeviceState *dev, Error **errp)
     }
 
     for (i = 0; i < PPC_CPU_OPCODES_LEN; i++) {
-        if (env->opcodes[i] == &invalid_handler) {
+        if (cpu->opcodes[i] == &invalid_handler) {
             continue;
         }
-        if (is_indirect_opcode(env->opcodes[i])) {
-            table = ind_table(env->opcodes[i]);
+        if (is_indirect_opcode(cpu->opcodes[i])) {
+            table = ind_table(cpu->opcodes[i]);
             for (j = 0; j < PPC_CPU_INDIRECT_OPCODES_LEN; j++) {
                 if (table[j] == &invalid_handler) {
                     continue;
@@ -10055,7 +10067,7 @@ static void ppc_cpu_unrealize(DeviceState *dev, Error **errp)
                                              ~PPC_INDIRECT));
                 }
             }
-            g_free((opc_handler_t *)((uintptr_t)env->opcodes[i] &
+            g_free((opc_handler_t *)((uintptr_t)cpu->opcodes[i] &
                 ~PPC_INDIRECT));
         }
     }
@@ -10469,6 +10481,28 @@ static bool ppc_cpu_is_big_endian(CPUState *cs)
 
     return !msr_le;
 }
+
+static void ppc_cpu_exec_enter(CPUState *cs)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
+
+    if (cpu->vhyp) {
+        PPCVirtualHypervisorClass *vhc =
+            PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
+        vhc->cpu_exec_enter(cpu->vhyp, cpu);
+    }
+}
+
+static void ppc_cpu_exec_exit(CPUState *cs)
+{
+    PowerPCCPU *cpu = POWERPC_CPU(cs);
+
+    if (cpu->vhyp) {
+        PPCVirtualHypervisorClass *vhc =
+            PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
+        vhc->cpu_exec_exit(cpu->vhyp, cpu);
+    }
+}
 #endif
 
 static void ppc_cpu_instance_init(Object *obj)
@@ -10622,6 +10656,11 @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data)
     cc->tcg_initialize = ppc_translate_init;
     cc->tlb_fill = ppc_cpu_tlb_fill;
 #endif
+#ifndef CONFIG_USER_ONLY
+    cc->cpu_exec_enter = ppc_cpu_exec_enter;
+    cc->cpu_exec_exit = ppc_cpu_exec_exit;
+#endif
+
     cc->disas_set_info = ppc_disas_set_info;
 
     dc->fw_name = "PowerPC,UNKNOWN";