acpi/generic_event_device: add logic to detect if HEST addr is available

Create a new property (x-has-hest-addr) and use it to detect if
the GHES table offsets can be calculated from the HEST address
(qemu 10.0 and upper) or via the legacy way via an offset obtained
from the hardware_errors firmware file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <c4eb3cf32a3f158ae62dac29e866ac3f373956c3.1758610789.git.mchehab+huawei@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 16 insertions, 2 deletions

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index c856d293c6..ff3b7a794b 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -1129,6 +1129,10 @@ static const AcpiNotificationSourceId hest_ghes_notify[] = {
     { ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
 };
 
+static const AcpiNotificationSourceId hest_ghes_notify_10_0[] = {
+    { ACPI_HEST_SRC_ID_SYNC, ACPI_GHES_NOTIFY_SEA },
+};
+
 static
 void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
 {
@@ -1186,15 +1190,25 @@ void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables)
 
     if (vms->ras) {
         AcpiGedState *acpi_ged_state;
+        static const AcpiNotificationSourceId *notify;
+        unsigned int notify_sz;
         AcpiGhesState *ags;
 
         acpi_ged_state = ACPI_GED(vms->acpi_dev);
         ags = &acpi_ged_state->ghes_state;
         if (ags) {
             acpi_add_table(table_offsets, tables_blob);
+
+            if (!ags->use_hest_addr) {
+                notify = hest_ghes_notify_10_0;
+                notify_sz = ARRAY_SIZE(hest_ghes_notify_10_0);
+            } else {
+                notify = hest_ghes_notify;
+                notify_sz = ARRAY_SIZE(hest_ghes_notify);
+            }
+
             acpi_build_hest(ags, tables_blob, tables->hardware_errors,
-                            tables->linker, hest_ghes_notify,
-                            ARRAY_SIZE(hest_ghes_notify),
+                            tables->linker, notify, notify_sz,
                             vms->oem_id, vms->oem_table_id);
         }
     }