diff options
| -rw-r--r-- | src/acpi/acpi.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c index 0bb49f6ff7..dea4c27a70 100644 --- a/src/acpi/acpi.c +++ b/src/acpi/acpi.c @@ -1086,13 +1086,17 @@ static void acpi_create_fadt(acpi_header_t *header, void *arg1) return; fadt->FADT_MinorVersion = get_acpi_fadt_minor_version(); - fadt->firmware_ctrl = (unsigned long)facs; - fadt->x_firmware_ctl_l = (unsigned long)facs; - fadt->x_firmware_ctl_h = 0; + if ((uintptr_t)facs <= UINT32_MAX) + fadt->firmware_ctrl = (uintptr_t)facs; + else + fadt->x_firmware_ctl_h = (uint32_t)((uint64_t)(uintptr_t)facs >> 32); + fadt->x_firmware_ctl_l = (uint32_t)(uintptr_t)facs; - fadt->dsdt = (unsigned long)dsdt; - fadt->x_dsdt_l = (unsigned long)dsdt; - fadt->x_dsdt_h = 0; + if ((uintptr_t)dsdt <= UINT32_MAX) + fadt->dsdt = (uintptr_t)dsdt; + else + fadt->x_dsdt_h = (uint32_t)((uint64_t)(uintptr_t)dsdt >> 32); + fadt->x_dsdt_l = (uint32_t)(uintptr_t)dsdt; /* should be 0 ACPI 3.0 */ fadt->reserved = 0; |