2 files changed, 33 insertions, 0 deletions

diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 5d17f78a1e..b1cbdd86b6 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -247,6 +247,24 @@ static const VMStateDescription vmstate_ged_state = {
     }
 };
 
+static bool ghes_needed(void *opaque)
+{
+    AcpiGedState *s = opaque;
+    return s->ghes_state.ghes_addr_le;
+}
+
+static const VMStateDescription vmstate_ghes_state = {
+    .name = "acpi-ged/ghes",
+    .version_id = 1,
+    .minimum_version_id = 1,
+    .needed = ghes_needed,
+    .fields      = (VMStateField[]) {
+        VMSTATE_STRUCT(ghes_state, AcpiGedState, 1,
+                       vmstate_ghes_state, AcpiGhesState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
 static const VMStateDescription vmstate_acpi_ged = {
     .name = "acpi-ged",
     .version_id = 1,
@@ -257,6 +275,7 @@ static const VMStateDescription vmstate_acpi_ged = {
     },
     .subsections = (const VMStateDescription * []) {
         &vmstate_memhp_state,
+        &vmstate_ghes_state,
         NULL
     }
 };
diff --git a/hw/acpi/ghes.c b/hw/acpi/ghes.c
index 091fd87094..e74af23c36 100644
--- a/hw/acpi/ghes.c
+++ b/hw/acpi/ghes.c
@@ -24,6 +24,8 @@
 #include "hw/acpi/ghes.h"
 #include "hw/acpi/aml-build.h"
 #include "qemu/error-report.h"
+#include "hw/acpi/generic_event_device.h"
+#include "hw/nvram/fw_cfg.h"
 
 #define ACPI_GHES_ERRORS_FW_CFG_FILE        "etc/hardware_errors"
 #define ACPI_GHES_DATA_ADDR_FW_CFG_FILE     "etc/hardware_errors_addr"
@@ -213,3 +215,15 @@ void acpi_build_hest(GArray *table_data, BIOSLinker *linker)
     build_header(linker, table_data, (void *)(table_data->data + hest_start),
         "HEST", table_data->len - hest_start, 1, NULL, NULL);
 }
+
+void acpi_ghes_add_fw_cfg(AcpiGhesState *ags, FWCfgState *s,
+                          GArray *hardware_error)
+{
+    /* Create a read-only fw_cfg file for GHES */
+    fw_cfg_add_file(s, ACPI_GHES_ERRORS_FW_CFG_FILE, hardware_error->data,
+                    hardware_error->len);
+
+    /* Create a read-write fw_cfg file for Address */
+    fw_cfg_add_file_callback(s, ACPI_GHES_DATA_ADDR_FW_CFG_FILE, NULL, NULL,
+        NULL, &(ags->ghes_addr_le), sizeof(ags->ghes_addr_le), false);
+}