Lines Matching refs:ssp
50 static int create_rstor_token(unsigned long ssp, unsigned long *token_addr) in create_rstor_token() argument
55 if (!IS_ALIGNED(ssp, 8)) in create_rstor_token()
58 addr = ssp - SS_FRAME_SIZE; in create_rstor_token()
64 ssp |= BIT(0); in create_rstor_token()
66 if (write_user_shstk_64((u64 __user *)addr, (u64)ssp)) in create_rstor_token()
238 unsigned long long ssp; in get_user_shstk_addr() local
242 rdmsrq(MSR_IA32_PL3_SSP, ssp); in get_user_shstk_addr()
246 return ssp; in get_user_shstk_addr()
280 static int shstk_push_sigframe(unsigned long *ssp) in shstk_push_sigframe() argument
282 unsigned long target_ssp = *ssp; in shstk_push_sigframe()
288 *ssp -= SS_FRAME_SIZE; in shstk_push_sigframe()
289 if (put_shstk_data((void __user *)*ssp, target_ssp)) in shstk_push_sigframe()
295 static int shstk_pop_sigframe(unsigned long *ssp) in shstk_pop_sigframe() argument
308 if (!IS_ALIGNED(*ssp, 8)) in shstk_pop_sigframe()
311 need_to_check_vma = PAGE_ALIGN(*ssp) == *ssp; in shstk_pop_sigframe()
316 err = get_shstk_data(&token_addr, (unsigned long __user *)*ssp); in shstk_pop_sigframe()
321 vma = find_vma(current->mm, *ssp); in shstk_pop_sigframe()
338 *ssp = token_addr; in shstk_pop_sigframe()
350 unsigned long ssp; in setup_signal_shadow_stack() local
360 ssp = get_user_shstk_addr(); in setup_signal_shadow_stack()
361 if (unlikely(!ssp)) in setup_signal_shadow_stack()
364 err = shstk_push_sigframe(&ssp); in setup_signal_shadow_stack()
369 ssp -= SS_FRAME_SIZE; in setup_signal_shadow_stack()
370 err = write_user_shstk_64((u64 __user *)ssp, (u64)restorer); in setup_signal_shadow_stack()
375 wrmsrq(MSR_IA32_PL3_SSP, ssp); in setup_signal_shadow_stack()
383 unsigned long ssp; in restore_signal_shadow_stack() local
390 ssp = get_user_shstk_addr(); in restore_signal_shadow_stack()
391 if (unlikely(!ssp)) in restore_signal_shadow_stack()
394 err = shstk_pop_sigframe(&ssp); in restore_signal_shadow_stack()
399 wrmsrq(MSR_IA32_PL3_SSP, ssp); in restore_signal_shadow_stack()
583 unsigned long ssp; in shstk_update_last_frame() local
588 ssp = get_user_shstk_addr(); in shstk_update_last_frame()
589 return write_user_shstk_64((u64 __user *)ssp, (u64)val); in shstk_update_last_frame()