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/xnu-12377.81.4/osfmk/i386/
H A Dacpi.c628 static RSDP_DESCRIPTOR *rsdp = NULL; in acpi_find_table() local
640 if (__improbable(rsdp == NULL || (rsdtp == NULL && xsdtp == NULL))) { in acpi_find_table()
641 rsdp = PHYSMAP_PTOV(rsdp_physaddr); in acpi_find_table()
644 if (__improbable(strncmp((void *)rsdp, "RSD PTR ", 8) != 0)) { in acpi_find_table()
646 rsdp = NULL; in acpi_find_table()
651 if (__improbable(cksum8((uint8_t *)rsdp, sizeof(RSDP_DESCRIPTOR)) != 0)) { in acpi_find_table()
654 rsdp = NULL; in acpi_find_table()
659 if (__improbable(rsdp->Revision >= RSDP_VERSION_ACPI20 && rsdp->XsdtPhysicalAddress == 0ULL)) { in acpi_find_table()
661 rsdp = NULL; in acpi_find_table()
663 } else if (__probable(rsdp->Revision >= RSDP_VERSION_ACPI20)) { in acpi_find_table()
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