diff options
Diffstat (limited to 'arch/arm/include/asm/efi.h')
| -rw-r--r-- | arch/arm/include/asm/efi.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h index 78282ced50..e408399d5f 100644 --- a/arch/arm/include/asm/efi.h +++ b/arch/arm/include/asm/efi.h @@ -14,6 +14,7 @@ #include <asm/mach/map.h> #include <asm/mmu_context.h> #include <asm/ptrace.h> +#include <asm/uaccess.h> #ifdef CONFIG_EFI void efi_init(void); @@ -25,6 +26,18 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md, boo #define arch_efi_call_virt_setup() efi_virtmap_load() #define arch_efi_call_virt_teardown() efi_virtmap_unload() +#ifdef CONFIG_CPU_TTBR0_PAN +#undef arch_efi_call_virt +#define arch_efi_call_virt(p, f, args...) ({ \ + unsigned int flags = uaccess_save_and_enable(); \ + efi_status_t res = _Generic((p)->f(args), \ + efi_status_t: (p)->f(args), \ + default: ((p)->f(args), EFI_ABORTED)); \ + uaccess_restore(flags); \ + res; \ +}) +#endif + #define ARCH_EFI_IRQ_FLAGS_MASK \ (PSR_J_BIT | PSR_E_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT | \ PSR_T_BIT | MODE_MASK) |