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[acpi] Allow for the possibility of overriding ACPI tables at link time

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Allow for linked-in code to override the mechanism used to locate an
ACPI table, thereby opening up the possibility of ACPI self-tests.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2022-03-23 14:39:11 +00:00
parent dd35475438
commit 27825e5557
5 changed files with 26 additions and 5 deletions
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src/include/ipxe/acpi.h
+3
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@@ -386,7 +386,10 @@ acpi_describe ( struct interface *interface );
#define acpi_describe_TYPE( object_type ) \
typeof ( struct acpi_descriptor * ( object_type ) )
extern userptr_t ( * acpi_finder ) ( uint32_t signature, unsigned int index );
extern void acpi_fix_checksum ( struct acpi_header *acpi );
extern userptr_t acpi_table ( uint32_t signature, unsigned int index );
extern int acpi_extract ( uint32_t signature, void *data,
int ( * extract ) ( userptr_t zsdt, size_t len,
size_t offset, void *data ) );