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authorIgor Mammedov <imammedo@redhat.com>2021-09-24 08:27:46 -0400
committerMichael S. Tsirkin <mst@redhat.com>2021-10-05 17:30:57 -0400
commiteaa507646d039556ee2a10514b0a0acfe8f8362d (patch)
tree89e18f5e6f9f5986e4fd0be18d2a7ee39ac2d170 /hw/i386/acpi-build.c
parent91a6b9756970f70d933ea3c01fb5306ea6e5b331 (diff)
acpi: build_waet: use acpi_table_begin()/acpi_table_end() instead of build_header()
it replaces error-prone pointer arithmetic for build_header() API, with 2 calls to start and finish table creation, which hides offsets magic from API user. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20210924122802.1455362-20-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
-rw-r--r--hw/i386/acpi-build.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index c65ab1d6a5..e5cc4f7daa 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -2223,10 +2223,10 @@ static void
build_waet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
const char *oem_table_id)
{
- int waet_start = table_data->len;
+ AcpiTable table = { .sig = "WAET", .rev = 1, .oem_id = oem_id,
+ .oem_table_id = oem_table_id };
- /* WAET header */
- acpi_data_push(table_data, sizeof(AcpiTableHeader));
+ acpi_table_begin(&table, table_data);
/*
* Set "ACPI PM timer good" flag.
*
@@ -2235,9 +2235,7 @@ build_waet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
* Which avoids costly VMExits caused by guest re-reading it unnecessarily.
*/
build_append_int_noprefix(table_data, 1 << 1 /* ACPI PM timer good */, 4);
-
- build_header(linker, table_data, (void *)(table_data->data + waet_start),
- "WAET", table_data->len - waet_start, 1, oem_id, oem_table_id);
+ acpi_table_end(linker, &table);
}
/*