mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
11520e5e7c
This reverts commitbd52276fa1("x86-64/efi: Use EFI to deal with platform wall clock (again)"), and the two supporting commits:da5a108d05: "x86/kernel: remove tboot 1:1 page table creation code"185034e72d: "x86, efi: 1:1 pagetable mapping for virtual EFI calls") as they all depend semantically on commit53b87cf088("x86, mm: Include the entire kernel memory map in trampoline_pgd") that got reverted earlier due to the problems it caused. This was pointed out by Yinghai Lu, and verified by me on my Macbook Air that uses EFI. Pointed-out-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
118 lines
4.3 KiB
C
118 lines
4.3 KiB
C
#ifndef _ASM_X86_EFI_H
|
|
#define _ASM_X86_EFI_H
|
|
|
|
#ifdef CONFIG_X86_32
|
|
|
|
#define EFI_LOADER_SIGNATURE "EL32"
|
|
|
|
extern unsigned long asmlinkage efi_call_phys(void *, ...);
|
|
|
|
#define efi_call_phys0(f) efi_call_phys(f)
|
|
#define efi_call_phys1(f, a1) efi_call_phys(f, a1)
|
|
#define efi_call_phys2(f, a1, a2) efi_call_phys(f, a1, a2)
|
|
#define efi_call_phys3(f, a1, a2, a3) efi_call_phys(f, a1, a2, a3)
|
|
#define efi_call_phys4(f, a1, a2, a3, a4) \
|
|
efi_call_phys(f, a1, a2, a3, a4)
|
|
#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
|
|
efi_call_phys(f, a1, a2, a3, a4, a5)
|
|
#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
|
|
efi_call_phys(f, a1, a2, a3, a4, a5, a6)
|
|
/*
|
|
* Wrap all the virtual calls in a way that forces the parameters on the stack.
|
|
*/
|
|
|
|
#define efi_call_virt(f, args...) \
|
|
((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
|
|
|
|
#define efi_call_virt0(f) efi_call_virt(f)
|
|
#define efi_call_virt1(f, a1) efi_call_virt(f, a1)
|
|
#define efi_call_virt2(f, a1, a2) efi_call_virt(f, a1, a2)
|
|
#define efi_call_virt3(f, a1, a2, a3) efi_call_virt(f, a1, a2, a3)
|
|
#define efi_call_virt4(f, a1, a2, a3, a4) \
|
|
efi_call_virt(f, a1, a2, a3, a4)
|
|
#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
|
|
efi_call_virt(f, a1, a2, a3, a4, a5)
|
|
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
|
|
efi_call_virt(f, a1, a2, a3, a4, a5, a6)
|
|
|
|
#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size)
|
|
|
|
#else /* !CONFIG_X86_32 */
|
|
|
|
#define EFI_LOADER_SIGNATURE "EL64"
|
|
|
|
extern u64 efi_call0(void *fp);
|
|
extern u64 efi_call1(void *fp, u64 arg1);
|
|
extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
|
|
extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
|
|
extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
|
|
extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
|
|
u64 arg4, u64 arg5);
|
|
extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
|
|
u64 arg4, u64 arg5, u64 arg6);
|
|
|
|
#define efi_call_phys0(f) \
|
|
efi_call0((void *)(f))
|
|
#define efi_call_phys1(f, a1) \
|
|
efi_call1((void *)(f), (u64)(a1))
|
|
#define efi_call_phys2(f, a1, a2) \
|
|
efi_call2((void *)(f), (u64)(a1), (u64)(a2))
|
|
#define efi_call_phys3(f, a1, a2, a3) \
|
|
efi_call3((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3))
|
|
#define efi_call_phys4(f, a1, a2, a3, a4) \
|
|
efi_call4((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
|
|
(u64)(a4))
|
|
#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
|
|
efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
|
|
(u64)(a4), (u64)(a5))
|
|
#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
|
|
efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
|
|
(u64)(a4), (u64)(a5), (u64)(a6))
|
|
|
|
#define efi_call_virt0(f) \
|
|
efi_call0((void *)(efi.systab->runtime->f))
|
|
#define efi_call_virt1(f, a1) \
|
|
efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
|
|
#define efi_call_virt2(f, a1, a2) \
|
|
efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
|
|
#define efi_call_virt3(f, a1, a2, a3) \
|
|
efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
|
|
(u64)(a3))
|
|
#define efi_call_virt4(f, a1, a2, a3, a4) \
|
|
efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
|
|
(u64)(a3), (u64)(a4))
|
|
#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
|
|
efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
|
|
(u64)(a3), (u64)(a4), (u64)(a5))
|
|
#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
|
|
efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
|
|
(u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
|
|
|
|
extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
|
|
u32 type, u64 attribute);
|
|
|
|
#endif /* CONFIG_X86_32 */
|
|
|
|
extern int add_efi_memmap;
|
|
extern void efi_set_executable(efi_memory_desc_t *md, bool executable);
|
|
extern int efi_memblock_x86_reserve_range(void);
|
|
extern void efi_call_phys_prelog(void);
|
|
extern void efi_call_phys_epilog(void);
|
|
extern void efi_unmap_memmap(void);
|
|
extern void efi_memory_uc(u64 addr, unsigned long size);
|
|
|
|
#ifndef CONFIG_EFI
|
|
/*
|
|
* IF EFI is not configured, have the EFI calls return -ENOSYS.
|
|
*/
|
|
#define efi_call0(_f) (-ENOSYS)
|
|
#define efi_call1(_f, _a1) (-ENOSYS)
|
|
#define efi_call2(_f, _a1, _a2) (-ENOSYS)
|
|
#define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS)
|
|
#define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS)
|
|
#define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS)
|
|
#define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS)
|
|
#endif /* CONFIG_EFI */
|
|
|
|
#endif /* _ASM_X86_EFI_H */
|