[v15,02/10] acpi: add build_append_ghes_notify() helper for Hardware Error Notification

Commit Message

Dongjiu Geng Nov. 8, 2018, 10:15 a.m. UTC

It will help to add Hardware Error Notification to ACPI tables
without using packed C structures and avoid endianness
issues as API doesn't need explicit conversion.

Signed-off-by: Dongjiu Geng <[e-mail]>
---
 hw/acpi/aml-build.c         | 22 ++++++++++++++++++++++
 include/hw/acpi/aml-build.h |  8 ++++++++
 2 files changed, 30 insertions(+)

Patch

diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 1e43cd7..4210c36 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -274,6 +274,28 @@  void build_append_gas(GArray *table, AmlAddressSpace as,
     build_append_int_noprefix(table, address, 8);
 }
 
+/* Hardware Error Notification
+ * ACPI 4.0: 17.3.2.7 Hardware Error Notification
+ */
+void build_append_ghes_notify(GArray *table, const uint8_t type,
+                              uint8_t length, uint16_t config_write_enable,
+                              uint32_t poll_interval, uint32_t vector,
+                              uint32_t polling_threshold_value,
+                              uint32_t polling_threshold_window,
+                              uint32_t error_threshold_value,
+                              uint32_t error_threshold_window)
+{
+        build_append_int_noprefix(table, type, 1); /* type */
+        build_append_int_noprefix(table, length, 1);
+        build_append_int_noprefix(table, config_write_enable, 2);
+        build_append_int_noprefix(table, poll_interval, 4);
+        build_append_int_noprefix(table, vector, 4);
+        build_append_int_noprefix(table, polling_threshold_value, 4);
+        build_append_int_noprefix(table, polling_threshold_window, 4);
+        build_append_int_noprefix(table, error_threshold_value, 4);
+        build_append_int_noprefix(table, error_threshold_window, 4);
+}
+
 /*
  * Build NAME(XXXX, 0x00000000) where 0x00000000 is encoded as a dword,
  * and return the offset to 0x00000000 for runtime patching.
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 6c36903..a005052 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -409,6 +409,14 @@  build_append_gas_from_struct(GArray *table, const struct AcpiGenericAddress *s)
                      s->access_width, s->address);
 }
 
+void build_append_ghes_notify(GArray *table, const uint8_t type,
+                              uint8_t length, uint16_t config_write_enable,
+                              uint32_t poll_interval, uint32_t vector,
+                              uint32_t polling_threshold_value,
+                              uint32_t polling_threshold_window,
+                              uint32_t error_threshold_value,
+                              uint32_t error_threshold_window);
+
 void build_srat_memory(AcpiSratMemoryAffinity *numamem, uint64_t base,
                        uint64_t len, int node, MemoryAffinityFlags flags);