Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.8-20161028' into staging

ppc patch queue 2016-10-28

This pull request supersedes and extends the one from 2016-10-26
(which had a build bug).

Highlights:
  * SLOF (pseries guest firmware) update
  * Enable a number of extra testcases on ppc / pseries
  * Added the 'powernv' machine type
    - Almost enough to be minimally usable
    - But still missing necessary interrupt controller updates
  * Cleanup and consolidation of NVRAM handling on several platforms
    with related firmware
  * Substantial cleanup to device tree construction
  * Some more POWER9 instruction emulation
  * Cleanup to handling of pseries option vectors and CAS reboot
    handling (host/guest feature negotiation mechanism)
  * Significant cleanups to handling of PCI devices in test cases
  * New hotplug event infrastructure
  * Memory hot unplug support for pseries
  * Several bug fixes

The NVRAM cleanup affects some Sun sparc platforms as well as ppc
ones, but have been tested by the sparc maintainer (Mark Cave-Ayland).

The test additions also include substantial general changes to the
test framework that aren't strictly ppc related.  They don't seem to
break tests on other platforms, they're for the benefit of enabling
tests on ppc and there isn't a specific maintainer for them, so
they're included in this tree.

# gpg: Signature made Fri 28 Oct 2016 02:37:19 BST
# gpg:                using RSA key 0x6C38CACA20D9B392
# 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-2.8-20161028: (73 commits)
  ppc: allow certain HV interrupts to be delivered to guests
  spapr: Memory hot-unplug support
  spapr: use count+index for memory hotplug
  spapr: Add DRC count indexed hotplug identifier type
  spapr: add hotplug interrupt machine options
  spapr_events: add support for dedicated hotplug event source
  spapr: update spapr hotplug documentation
  target-ppc: Add xvcmpnesp, xvcmpnedp instructions
  target-ppc: add xscmp[eq,gt,ge,ne]dp instructions
  tests: Add pseries machine to the prom-env-test, too
  spapr_nvram: Pre-initialize the NVRAM to support the -prom-env parameter
  libqos: Change PCI accessors to take opaque BAR handle
  tests: Don't assume structure of PCI IO base in ahci-test
  tests: Use qpci_mem{read,write} in ivshmem-test
  libqos: Add 64-bit PCI IO accessors
  tests: Clean up IO handling in ide-test
  libqos: Implement mmio accessors in terms of mem{read,write}
  libqos: Add streaming accessors for PCI MMIO
  tests: Adjust tco-test to use qpci_legacy_iomap()
  libqos: Better handling of PCI legacy IO
  ...

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

1 files changed, 81 insertions, 18 deletions

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index f40b00003a..095c16a300 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -35,6 +35,8 @@
 #include "hw/ppc/xics.h"
 #include "qemu/error-report.h"
 #include "qapi/visitor.h"
+#include "monitor/monitor.h"
+#include "hw/intc/intc.h"
 
 int xics_get_cpu_index_by_dt_id(int cpu_dt_id)
 {
@@ -90,6 +92,47 @@ void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
     }
 }
 
+static void xics_common_pic_print_info(InterruptStatsProvider *obj,
+                                       Monitor *mon)
+{
+    XICSState *xics = XICS_COMMON(obj);
+    ICSState *ics;
+    uint32_t i;
+
+    for (i = 0; i < xics->nr_servers; i++) {
+        ICPState *icp = &xics->ss[i];
+
+        if (!icp->output) {
+            continue;
+        }
+        monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
+                       i, icp->xirr, icp->xirr_owner,
+                       icp->pending_priority, icp->mfrr);
+    }
+
+    QLIST_FOREACH(ics, &xics->ics, list) {
+        monitor_printf(mon, "ICS %4x..%4x %p\n",
+                       ics->offset, ics->offset + ics->nr_irqs - 1, ics);
+
+        if (!ics->irqs) {
+            continue;
+        }
+
+        for (i = 0; i < ics->nr_irqs; i++) {
+            ICSIRQState *irq = ics->irqs + i;
+
+            if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
+                continue;
+            }
+            monitor_printf(mon, "  %4x %s %02x %02x\n",
+                           ics->offset + i,
+                           (irq->flags & XICS_FLAGS_IRQ_LSI) ?
+                           "LSI" : "MSI",
+                           irq->priority, irq->status);
+        }
+    }
+}
+
 /*
  * XICS Common class - parent for emulated XICS and KVM-XICS
  */
@@ -140,6 +183,25 @@ static void xics_prop_set_nr_irqs(Object *obj, Visitor *v, const char *name,
     info->set_nr_irqs(xics, value, errp);
 }
 
+void xics_set_nr_servers(XICSState *xics, uint32_t nr_servers,
+                         const char *typename, Error **errp)
+{
+    int i;
+
+    xics->nr_servers = nr_servers;
+
+    xics->ss = g_malloc0(xics->nr_servers * sizeof(ICPState));
+    for (i = 0; i < xics->nr_servers; i++) {
+        char name[32];
+        ICPState *icp = &xics->ss[i];
+
+        object_initialize(icp, sizeof(*icp), typename);
+        snprintf(name, sizeof(name), "icp[%d]", i);
+        object_property_add_child(OBJECT(xics), name, OBJECT(icp), errp);
+        icp->xics = xics;
+    }
+}
+
 static void xics_prop_get_nr_servers(Object *obj, Visitor *v,
                                      const char *name, void *opaque,
                                      Error **errp)
@@ -155,7 +217,7 @@ static void xics_prop_set_nr_servers(Object *obj, Visitor *v,
                                      Error **errp)
 {
     XICSState *xics = XICS_COMMON(obj);
-    XICSStateClass *info = XICS_COMMON_GET_CLASS(xics);
+    XICSStateClass *xsc = XICS_COMMON_GET_CLASS(xics);
     Error *error = NULL;
     int64_t value;
 
@@ -170,8 +232,8 @@ static void xics_prop_set_nr_servers(Object *obj, Visitor *v,
         return;
     }
 
-    assert(info->set_nr_servers);
-    info->set_nr_servers(xics, value, errp);
+    assert(xsc->set_nr_servers);
+    xsc->set_nr_servers(xics, value, errp);
 }
 
 static void xics_common_initfn(Object *obj)
@@ -190,8 +252,10 @@ static void xics_common_initfn(Object *obj)
 static void xics_common_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
+    InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(oc);
 
     dc->reset = xics_common_reset;
+    ic->print_info = xics_common_pic_print_info;
 }
 
 static const TypeInfo xics_common_info = {
@@ -201,6 +265,10 @@ static const TypeInfo xics_common_info = {
     .class_size    = sizeof(XICSStateClass),
     .instance_init = xics_common_initfn,
     .class_init    = xics_common_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_INTERRUPT_STATS_PROVIDER },
+        { }
+    },
 };
 
 /*
@@ -258,22 +326,20 @@ static void icp_check_ipi(ICPState *ss)
     qemu_irq_raise(ss->output);
 }
 
-static void icp_resend(XICSState *xics, int server)
+static void icp_resend(ICPState *ss)
 {
-    ICPState *ss = xics->ss + server;
     ICSState *ics;
 
     if (ss->mfrr < CPPR(ss)) {
         icp_check_ipi(ss);
     }
-    QLIST_FOREACH(ics, &xics->ics, list) {
+    QLIST_FOREACH(ics, &ss->xics->ics, list) {
         ics_resend(ics);
     }
 }
 
-void icp_set_cppr(XICSState *xics, int server, uint8_t cppr)
+void icp_set_cppr(ICPState *ss, uint8_t cppr)
 {
-    ICPState *ss = xics->ss + server;
     uint8_t old_cppr;
     uint32_t old_xisr;
 
@@ -293,15 +359,13 @@ void icp_set_cppr(XICSState *xics, int server, uint8_t cppr)
         }
     } else {
         if (!XISR(ss)) {
-            icp_resend(xics, server);
+            icp_resend(ss);
         }
     }
 }
 
-void icp_set_mfrr(XICSState *xics, int server, uint8_t mfrr)
+void icp_set_mfrr(ICPState *ss, uint8_t mfrr)
 {
-    ICPState *ss = xics->ss + server;
-
     ss->mfrr = mfrr;
     if (mfrr < CPPR(ss)) {
         icp_check_ipi(ss);
@@ -330,23 +394,22 @@ uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr)
     return ss->xirr;
 }
 
-void icp_eoi(XICSState *xics, int server, uint32_t xirr)
+void icp_eoi(ICPState *ss, uint32_t xirr)
 {
-    ICPState *ss = xics->ss + server;
     ICSState *ics;
     uint32_t irq;
 
     /* Send EOI -> ICS */
     ss->xirr = (ss->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK);
-    trace_xics_icp_eoi(server, xirr, ss->xirr);
+    trace_xics_icp_eoi(ss->cs->cpu_index, xirr, ss->xirr);
     irq = xirr & XISR_MASK;
-    QLIST_FOREACH(ics, &xics->ics, list) {
+    QLIST_FOREACH(ics, &ss->xics->ics, list) {
         if (ics_valid_irq(ics, irq)) {
             ics_eoi(ics, irq);
         }
     }
     if (!XISR(ss)) {
-        icp_resend(xics, server);
+        icp_resend(ss);
     }
 }
 
@@ -605,7 +668,7 @@ static int ics_simple_post_load(ICSState *ics, int version_id)
     int i;
 
     for (i = 0; i < ics->xics->nr_servers; i++) {
-        icp_resend(ics->xics, i);
+        icp_resend(&ics->xics->ss[i]);
     }
 
     return 0;