RSDP points to XSDT which in turn points to other tables.
Signed-off-by: Shannon Zhao <zhaoshengl...@huawei.com>
---
hw/arm/virt-acpi-build.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 4eed0a3..9c3971a 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -86,6 +86,28 @@ static inline void acpi_add_table(GArray *table_offsets,
GArray *table_data)
static GArray *
build_rsdp(GArray *rsdp_table, GArray *linker, uint64_t xsdt)
{
+ AcpiRsdpDescriptor *rsdp = acpi_data_push(rsdp_table, sizeof *rsdp);
+
+ bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, 16,
+ true /* fseg memory */);
+
+ memcpy(&rsdp->signature, "RSD PTR ", sizeof(rsdp->signature));
+ memcpy(rsdp->oem_id, ACPI_VIRT_QEMU_STR_6, sizeof(rsdp->oem_id));
+ rsdp->length = cpu_to_le32(sizeof(*rsdp));
+ rsdp->revision = 0x02;
+
+ /* Point to XSDT */
+ rsdp->xsdt_physical_address = cpu_to_le64(xsdt);
+ /* Address to be filled by Guest linker */
+ bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE,
+ ACPI_BUILD_TABLE_FILE,
+ rsdp_table, &rsdp->xsdt_physical_address,
+ sizeof rsdp->xsdt_physical_address);
+ rsdp->checksum = 0;
+ /* Checksum to be filled by Guest linker */
+ bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE,
+ rsdp, rsdp, sizeof *rsdp, &rsdp->checksum);
+
return rsdp_table;
}
--
1.7.1
