[PATCH qemu ] hw/acpi: Fix big endian host creation of Generic Port Affinity Structures

[Jonathan Cameron <Jonathan.Cameron@huawei.com>]

Treating the HID as an integer caused it to get bit reversed
on big endian hosts running little endian guests.  Treat it
as a character array instead.

Fixes hw/acpi: Generic Port Affinity Structure Support
Tested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

---
Richard ran the version posted in the thread on an s390 instance.
Thanks for the help!

Difference from version in thread:
- Instantiate i in the for loop.

Sending out now so Michael can decide whether to fold this in, or
drop the GP series for now from his pull request (in which case
I'll do an updated version with this and Markus' docs feedback
folded in.)

---
 include/hw/acpi/acpi_generic_initiator.h | 2 +-
 hw/acpi/acpi_generic_initiator.c         | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/hw/acpi/acpi_generic_initiator.h b/include/hw/acpi/acpi_generic_initiator.h
index 1a899af30f..5baefda33a 100644
--- a/include/hw/acpi/acpi_generic_initiator.h
+++ b/include/hw/acpi/acpi_generic_initiator.h
@@ -61,7 +61,7 @@ typedef struct PCIDeviceHandle {
             uint16_t bdf;
         };
         struct {
-            uint64_t hid;
+            char hid[8];
             uint32_t uid;
         };
     };
diff --git a/hw/acpi/acpi_generic_initiator.c b/hw/acpi/acpi_generic_initiator.c
index 78b80dcf08..f064753b67 100644
--- a/hw/acpi/acpi_generic_initiator.c
+++ b/hw/acpi/acpi_generic_initiator.c
@@ -151,7 +151,9 @@ build_srat_generic_node_affinity(GArray *table_data, int node,
         build_append_int_noprefix(table_data, 0, 12);
     } else {
         /* Device Handle - ACPI */
-        build_append_int_noprefix(table_data, handle->hid, 8);
+        for (int i = 0; i < sizeof(handle->hid); i++) {
+            build_append_int_noprefix(table_data, handle->hid[i], 1);
+        }
         build_append_int_noprefix(table_data, handle->uid, 4);
         build_append_int_noprefix(table_data, 0, 4);
     }
-- 
2.39.2