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authorShannon Zhao <shannon.zhao@linaro.org>2015-04-03 18:03:34 +0800
committerMichael S. Tsirkin <mst@redhat.com>2015-04-27 20:49:45 +0200
commit658c27181bf3b08a9cf2fab00ecce7f76065f6af (patch)
tree656910c214f7f89f958043db227b4b99739ccacc /hw/acpi
parent395e5fb4421a03c9d3a002bbb55d56b74024a568 (diff)
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hw/i386/acpi-build: move generic acpi building helpers into dedictated file
Move generic acpi building helpers into dedictated file and this can be shared with other machines. Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> 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/aml-build.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index d7945f6..8d01959 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -26,6 +26,7 @@
#include <string.h>
#include "hw/acpi/aml-build.h"
#include "qemu/bswap.h"
+#include "hw/acpi/bios-linker-loader.h"
static GArray *build_alloc_array(void)
{
@@ -891,3 +892,60 @@ Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed,
dec, addr_gran, addr_min, addr_max,
addr_trans, len, flags);
}
+
+void
+build_header(GArray *linker, GArray *table_data,
+ AcpiTableHeader *h, const char *sig, int len, uint8_t rev)
+{
+ memcpy(&h->signature, sig, 4);
+ h->length = cpu_to_le32(len);
+ h->revision = rev;
+ memcpy(h->oem_id, ACPI_BUILD_APPNAME6, 6);
+ memcpy(h->oem_table_id, ACPI_BUILD_APPNAME4, 4);
+ memcpy(h->oem_table_id + 4, sig, 4);
+ h->oem_revision = cpu_to_le32(1);
+ memcpy(h->asl_compiler_id, ACPI_BUILD_APPNAME4, 4);
+ h->asl_compiler_revision = cpu_to_le32(1);
+ h->checksum = 0;
+ /* Checksum to be filled in by Guest linker */
+ bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE,
+ table_data->data, h, len, &h->checksum);
+}
+
+void *acpi_data_push(GArray *table_data, unsigned size)
+{
+ unsigned off = table_data->len;
+ g_array_set_size(table_data, off + size);
+ return table_data->data + off;
+}
+
+unsigned acpi_data_len(GArray *table)
+{
+#if GLIB_CHECK_VERSION(2, 22, 0)
+ assert(g_array_get_element_size(table) == 1);
+#endif
+ return table->len;
+}
+
+void acpi_add_table(GArray *table_offsets, GArray *table_data)
+{
+ uint32_t offset = cpu_to_le32(table_data->len);
+ g_array_append_val(table_offsets, offset);
+}
+
+void acpi_build_tables_init(AcpiBuildTables *tables)
+{
+ tables->rsdp = g_array_new(false, true /* clear */, 1);
+ tables->table_data = g_array_new(false, true /* clear */, 1);
+ tables->tcpalog = g_array_new(false, true /* clear */, 1);
+ tables->linker = bios_linker_loader_init();
+}
+
+void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
+{
+ void *linker_data = bios_linker_loader_cleanup(tables->linker);
+ g_free(linker_data);
+ g_array_free(tables->rsdp, true);
+ g_array_free(tables->table_data, true);
+ g_array_free(tables->tcpalog, mfre);
+}