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efi: Defer freeing boot services memory until after ACPI init

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Some new ACPI 5.0 tables reference resources stored in boot services
memory, so keep that memory around until we have ACPI and can extract
data from it.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: http://lkml.kernel.org/r/baaa6d44bdc4eb0c58e5d1b4ccd2c729f854ac55.1348876882.git.josh@joshtriplett.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Josh Triplett 2012-09-28 17:55:44 -07:00 • committed by H. Peter Anvin
parent 984ff8a4d2
commit 785107923a
3 changed files with 26 additions and 13 deletions
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5
include/linux/efi.h
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@ -496,6 +496,11 @@ extern void efi_map_pal_code (void);
extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
extern void efi_gettimeofday (struct timespec *ts);
extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */
#ifdef CONFIG_X86
extern void efi_free_boot_services(void);
#else
static inline void efi_free_boot_services(void) {}
#endif
extern u64 efi_get_iobase (void);
extern u32 efi_mem_type (unsigned long phys_addr);
extern u64 efi_mem_attributes (unsigned long phys_addr);