Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-3.0-20180612' into staging

ppc patch queue 2018-06-12

Here's another batch of ppc patches towards the 3.0 release.  There's
a fair bit here, because I've been working through my mail backlog
after a holiday.  There's not much of a central theme, amongst other
things we have:
    * ppc440 / sam460ex improvements
    * logging and error cleanups
    * 40p (PReP) bugfixes
    * Macintosh fixes and cleanups
    * Add emulation of the new POWER9 store-forwarding barrier
      instruction variant
    * Hotplug cleanups

# gpg: Signature made Tue 12 Jun 2018 07:43:21 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-3.0-20180612: (33 commits)
  spapr_pci: Remove unhelpful pagesize warning
  xics_kvm: use KVM helpers
  ppc/pnv: fix LPC HC firmware address space
  spapr: handle cpu core unplug via hotplug handler chain
  spapr: handle pc-dimm unplug via hotplug handler chain
  spapr: introduce machine unplug handler
  spapr: move memory hotplug support check into spapr_memory_pre_plug()
  spapr: move lookup of the node into spapr_memory_plug()
  spapr: no need to verify the node
  target/ppc: Allow PIR read in privileged mode
  ppc4xx_i2c: Clean up and improve error logging
  target/ppc: extend eieio for POWER9
  mos6522: convert VMSTATE_TIMER_PTR_TEST to VMSTATE_TIMER_PTR
  mos6522: move timer frequency initialisation to mos6522_reset
  cuda: embed mos6522_cuda device directly rather than using QOM object link
  mos6522: fix vmstate_mos6522_timer version in vmstate_mos6522
  ppc: add missing FW_CFG_PPC_NVRAM_FLAT definition
  ppc: remove obsolete macio_init() definition from mac.h
  ppc: remove obsolete pci_pmac_init() definitions from mac.h
  hw/misc/mos6522: Add trailing '\n' to qemu_log() calls
  ...

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

1 files changed, 14 insertions, 38 deletions

diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 89fb20e2c5..8bdf6afe82 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -56,10 +56,6 @@ static QLIST_HEAD(, KVMEnabledICP)
 static void icp_get_kvm_state(ICPState *icp)
 {
     uint64_t state;
-    struct kvm_one_reg reg = {
-        .id = KVM_REG_PPC_ICP_STATE,
-        .addr = (uintptr_t)&state,
-    };
     int ret;
 
     /* ICP for this CPU thread is not in use, exiting */
@@ -67,7 +63,7 @@ static void icp_get_kvm_state(ICPState *icp)
         return;
     }
 
-    ret = kvm_vcpu_ioctl(icp->cs, KVM_GET_ONE_REG, &reg);
+    ret = kvm_get_one_reg(icp->cs, KVM_REG_PPC_ICP_STATE, &state);
     if (ret != 0) {
         error_report("Unable to retrieve KVM interrupt controller state"
                 " for CPU %ld: %s", kvm_arch_vcpu_id(icp->cs), strerror(errno));
@@ -96,10 +92,6 @@ static void icp_synchronize_state(ICPState *icp)
 static int icp_set_kvm_state(ICPState *icp, int version_id)
 {
     uint64_t state;
-    struct kvm_one_reg reg = {
-        .id = KVM_REG_PPC_ICP_STATE,
-        .addr = (uintptr_t)&state,
-    };
     int ret;
 
     /* ICP for this CPU thread is not in use, exiting */
@@ -111,7 +103,7 @@ static int icp_set_kvm_state(ICPState *icp, int version_id)
         | ((uint64_t)icp->mfrr << KVM_REG_PPC_ICP_MFRR_SHIFT)
         | ((uint64_t)icp->pending_priority << KVM_REG_PPC_ICP_PPRI_SHIFT);
 
-    ret = kvm_vcpu_ioctl(icp->cs, KVM_SET_ONE_REG, &reg);
+    ret = kvm_set_one_reg(icp->cs, KVM_REG_PPC_ICP_STATE, &state);
     if (ret != 0) {
         error_report("Unable to restore KVM interrupt controller state (0x%"
                 PRIx64 ") for CPU %ld: %s", state, kvm_arch_vcpu_id(icp->cs),
@@ -185,21 +177,15 @@ static const TypeInfo icp_kvm_info = {
 static void ics_get_kvm_state(ICSState *ics)
 {
     uint64_t state;
-    struct kvm_device_attr attr = {
-        .flags = 0,
-        .group = KVM_DEV_XICS_GRP_SOURCES,
-        .addr = (uint64_t)(uintptr_t)&state,
-    };
     int i;
+    Error *local_err = NULL;
 
     for (i = 0; i < ics->nr_irqs; i++) {
         ICSIRQState *irq = &ics->irqs[i];
-        int ret;
-
-        attr.attr = i + ics->offset;
 
-        ret = ioctl(kernel_xics_fd, KVM_GET_DEVICE_ATTR, &attr);
-        if (ret != 0) {
+        kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
+                          i + ics->offset, &state, false, &local_err);
+        if (local_err) {
             error_report("Unable to retrieve KVM interrupt controller state"
                     " for IRQ %d: %s", i + ics->offset, strerror(errno));
             exit(1);
@@ -255,19 +241,13 @@ static void ics_synchronize_state(ICSState *ics)
 static int ics_set_kvm_state(ICSState *ics, int version_id)
 {
     uint64_t state;
-    struct kvm_device_attr attr = {
-        .flags = 0,
-        .group = KVM_DEV_XICS_GRP_SOURCES,
-        .addr = (uint64_t)(uintptr_t)&state,
-    };
     int i;
+    Error *local_err = NULL;
 
     for (i = 0; i < ics->nr_irqs; i++) {
         ICSIRQState *irq = &ics->irqs[i];
         int ret;
 
-        attr.attr = i + ics->offset;
-
         state = irq->server;
         state |= (uint64_t)(irq->saved_priority & KVM_XICS_PRIORITY_MASK)
             << KVM_XICS_PRIORITY_SHIFT;
@@ -293,8 +273,9 @@ static int ics_set_kvm_state(ICSState *ics, int version_id)
                 state |= KVM_XICS_QUEUED;
         }
 
-        ret = ioctl(kernel_xics_fd, KVM_SET_DEVICE_ATTR, &attr);
-        if (ret != 0) {
+        kvm_device_access(kernel_xics_fd, KVM_DEV_XICS_GRP_SOURCES,
+                          i + ics->offset, &state, true, &local_err);
+        if (local_err) {
             error_report("Unable to restore KVM interrupt controller state"
                     " for IRQs %d: %s", i + ics->offset, strerror(errno));
             return ret;
@@ -391,10 +372,6 @@ static void rtas_dummy(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 int xics_kvm_init(sPAPRMachineState *spapr, Error **errp)
 {
     int rc;
-    struct kvm_create_device xics_create_device = {
-        .type = KVM_DEV_TYPE_XICS,
-        .flags = 0,
-    };
 
     if (!kvm_enabled() || !kvm_check_extension(kvm_state, KVM_CAP_IRQ_XICS)) {
         error_setg(errp,
@@ -431,20 +408,19 @@ int xics_kvm_init(sPAPRMachineState *spapr, Error **errp)
         goto fail;
     }
 
-    /* Create the kernel ICP */
-    rc = kvm_vm_ioctl(kvm_state, KVM_CREATE_DEVICE, &xics_create_device);
+    /* Create the KVM XICS device */
+    rc = kvm_create_device(kvm_state, KVM_DEV_TYPE_XICS, false);
     if (rc < 0) {
         error_setg_errno(errp, -rc, "Error on KVM_CREATE_DEVICE for XICS");
         goto fail;
     }
 
-    kernel_xics_fd = xics_create_device.fd;
-
+    kernel_xics_fd = rc;
     kvm_kernel_irqchip = true;
     kvm_msi_via_irqfd_allowed = true;
     kvm_gsi_direct_mapping = true;
 
-    return rc;
+    return 0;
 
 fail:
     kvmppc_define_rtas_kernel_token(0, "ibm,set-xive");