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authorIgor Mammedov <imammedo@redhat.com>2021-09-24 08:27:35 -0400
committerMichael S. Tsirkin <mst@redhat.com>2021-10-05 17:30:57 -0400
commit578bc7a06462fd71c66d1562c457b01da307a7b6 (patch)
tree6a906ce48675b0f5ae6af155eb223098c1e62657 /hw/acpi
parent13229858cf76b9648ba20be93b70fca4429d7dcd (diff)
acpi: build_mcfg: 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: <20210924122802.1455362-9-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi')
-rw-r--r--hw/acpi/pci.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/hw/acpi/pci.c b/hw/acpi/pci.c
index 75b1103ec4..20b70dcd81 100644
--- a/hw/acpi/pci.c
+++ b/hw/acpi/pci.c
@@ -28,19 +28,20 @@
#include "hw/acpi/pci.h"
#include "hw/pci/pcie_host.h"
+/*
+ * PCI Firmware Specification, Revision 3.0
+ * 4.1.2 MCFG Table Description.
+ */
void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info,
const char *oem_id, const char *oem_table_id)
{
- int mcfg_start = table_data->len;
+ AcpiTable table = { .sig = "MCFG", .rev = 1,
+ .oem_id = oem_id, .oem_table_id = oem_table_id };
+
+ acpi_table_begin(&table, table_data);
- /*
- * PCI Firmware Specification, Revision 3.0
- * 4.1.2 MCFG Table Description.
- */
- acpi_data_push(table_data, sizeof(AcpiTableHeader));
/* Reserved */
build_append_int_noprefix(table_data, 0, 8);
-
/*
* Memory Mapped Enhanced Configuration Space Base Address Allocation
* Structure
@@ -56,6 +57,5 @@ void build_mcfg(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info,
/* Reserved */
build_append_int_noprefix(table_data, 0, 4);
- build_header(linker, table_data, (void *)(table_data->data + mcfg_start),
- "MCFG", table_data->len - mcfg_start, 1, oem_id, oem_table_id);
+ acpi_table_end(linker, &table);
}