1 files changed, 38 insertions, 5 deletions

diff --git a/hw/cxl/cxl-device-utils.c b/hw/cxl/cxl-device-utils.c
index 86e1cea8ce..517f06d869 100644
--- a/hw/cxl/cxl-device-utils.c
+++ b/hw/cxl/cxl-device-utils.c
@@ -41,7 +41,20 @@ static uint64_t caps_reg_read(void *opaque, hwaddr offset, unsigned size)
 
 static uint64_t dev_reg_read(void *opaque, hwaddr offset, unsigned size)
 {
-    return 0;
+    CXLDeviceState *cxl_dstate = opaque;
+
+    switch (size) {
+    case 1:
+        return cxl_dstate->dev_reg_state[offset];
+    case 2:
+        return cxl_dstate->dev_reg_state16[offset / size];
+    case 4:
+        return cxl_dstate->dev_reg_state32[offset / size];
+    case 8:
+        return cxl_dstate->dev_reg_state64[offset / size];
+    default:
+        g_assert_not_reached();
+    }
 }
 
 static uint64_t mailbox_reg_read(void *opaque, hwaddr offset, unsigned size)
@@ -236,7 +249,27 @@ void cxl_device_register_block_init(Object *obj, CXLDeviceState *cxl_dstate)
                                 &cxl_dstate->memory_device);
 }
 
-static void device_reg_init_common(CXLDeviceState *cxl_dstate) { }
+void cxl_event_set_status(CXLDeviceState *cxl_dstate, CXLEventLogType log_type,
+                          bool available)
+{
+    if (available) {
+        cxl_dstate->event_status |= (1 << log_type);
+    } else {
+        cxl_dstate->event_status &= ~(1 << log_type);
+    }
+
+    ARRAY_FIELD_DP64(cxl_dstate->dev_reg_state64, CXL_DEV_EVENT_STATUS,
+                     EVENT_STATUS, cxl_dstate->event_status);
+}
+
+static void device_reg_init_common(CXLDeviceState *cxl_dstate)
+{
+    CXLEventLogType log;
+
+    for (log = 0; log < CXL_EVENT_TYPE_MAX; log++) {
+        cxl_event_set_status(cxl_dstate, log, false);
+    }
+}
 
 static void mailbox_reg_init_common(CXLDeviceState *cxl_dstate)
 {
@@ -258,13 +291,13 @@ void cxl_device_register_init_common(CXLDeviceState *cxl_dstate)
     ARRAY_FIELD_DP64(cap_hdrs, CXL_DEV_CAP_ARRAY, CAP_VERSION, 1);
     ARRAY_FIELD_DP64(cap_hdrs, CXL_DEV_CAP_ARRAY, CAP_COUNT, cap_count);
 
-    cxl_device_cap_init(cxl_dstate, DEVICE_STATUS, 1);
+    cxl_device_cap_init(cxl_dstate, DEVICE_STATUS, 1, 2);
     device_reg_init_common(cxl_dstate);
 
-    cxl_device_cap_init(cxl_dstate, MAILBOX, 2);
+    cxl_device_cap_init(cxl_dstate, MAILBOX, 2, 1);
     mailbox_reg_init_common(cxl_dstate);
 
-    cxl_device_cap_init(cxl_dstate, MEMORY_DEVICE, 0x4000);
+    cxl_device_cap_init(cxl_dstate, MEMORY_DEVICE, 0x4000, 1);
     memdev_reg_init_common(cxl_dstate);
 
     cxl_initialize_mailbox(cxl_dstate);