--- a/hw/xen/xen_pt.h
+++ b/hw/xen/xen_pt.h
@@ -10,6 +10,7 @@ void xen_pt_log(const PCIDevice *d, cons
 
 #define XEN_PT_ERR(d, _f, _a...) xen_pt_log(d, "%s: Error: "_f, __func__, ##_a)
 
+#define XEN_PT_LOGGING_ENABLED//temp
 #ifdef XEN_PT_LOGGING_ENABLED
 #  define XEN_PT_LOG(d, _f, _a...)  xen_pt_log(d, "%s: " _f, __func__, ##_a)
 #  define XEN_PT_WARN(d, _f, _a...) \
--- a/hw/xen/xen_pt_config_init.c
+++ b/hw/xen/xen_pt_config_init.c
@@ -1474,6 +1474,8 @@ static int xen_pt_msixctrl_reg_write(Xen
     writable_mask = reg->emu_mask & ~reg->ro_mask & valid_mask;
     *data = XEN_PT_MERGE_VALUE(*val, *data, writable_mask);
 
+XEN_PT_LOG(&s->dev, "MSI-X ctrl %04x (%04x/%04x)\n",//temp
+           *val, *data, XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask));//temp
     /* create value for writing to I/O device register */
     *val = XEN_PT_MERGE_VALUE(*val, dev_value, throughable_mask);
 
@@ -2027,7 +2029,7 @@ int xen_pt_config_init(XenPCIPassthrough
                                                   reg_grp_offset,
                                                   &reg_grp_entry->size);
             if (rc < 0) {
-                XEN_PT_LOG(&s->dev, "Failed to initialize %d/%ld, type=0x%x, rc:%d\n",
+                XEN_PT_LOG(&s->dev, "Failed to initialize %d/%zd, type=0x%x, rc:%d\n",
                            i, ARRAY_SIZE(xen_pt_emu_reg_grps),
                            xen_pt_emu_reg_grps[i].grp_type, rc);
                 xen_pt_config_delete(s);
@@ -2044,7 +2046,7 @@ int xen_pt_config_init(XenPCIPassthrough
                     /* initialize capability register */
                     rc = xen_pt_config_reg_init(s, reg_grp_entry, regs);
                     if (rc < 0) {
-                        XEN_PT_LOG(&s->dev, "Failed to initialize %d/%ld reg 0x%x in grp_type=0x%x (%d/%ld), rc=%d\n",
+                        XEN_PT_LOG(&s->dev, "Failed to initialize %d/%zd reg 0x%x in grp_type=0x%x (%d/%zd), rc=%d\n",
                                    j, ARRAY_SIZE(xen_pt_emu_reg_grps[i].emu_regs),
                                    regs->offset, xen_pt_emu_reg_grps[i].grp_type,
                                    i, ARRAY_SIZE(xen_pt_emu_reg_grps), rc);
--- a/hw/xen/xen_pt_msi.c
+++ b/hw/xen/xen_pt_msi.c
@@ -444,6 +444,7 @@ static void pci_msix_write(void *opaque,
     entry = &msix->msix_entry[entry_nr];
     offset = addr % PCI_MSIX_ENTRY_SIZE;
 
+XEN_PT_LOG(&s->dev, "[%"PRIx64"]=%08"PRIx64" (%u,%x)\n", addr, val, entry_nr, offset);//temp
     if (offset != PCI_MSIX_ENTRY_VECTOR_CTRL) {
         if (get_entry_value(entry, offset) == val
             && entry->pirq != XEN_PT_UNASSIGNED_PIRQ) {