include/asm/kvm_ptrauth.h

26 .macro	ptrauth_save_state base, reg1, reg2
27 	mrs_s	\reg1, SYS_APIAKEYLO_EL1
29 	stp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APIAKEYLO_EL1)]
30 	mrs_s	\reg1, SYS_APIBKEYLO_EL1
32 	stp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APIBKEYLO_EL1)]
33 	mrs_s	\reg1, SYS_APDAKEYLO_EL1
35 	stp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APDAKEYLO_EL1)]
36 	mrs_s	\reg1, SYS_APDBKEYLO_EL1
38 	stp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APDBKEYLO_EL1)]
39 	mrs_s	\reg1, SYS_APGAKEYLO_EL1
41 	stp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APGAKEYLO_EL1)]
44 .macro	ptrauth_restore_state base, reg1, reg2
45 	ldp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APIAKEYLO_EL1)]
46 	msr_s	SYS_APIAKEYLO_EL1, \reg1
48 	ldp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APIBKEYLO_EL1)]
49 	msr_s	SYS_APIBKEYLO_EL1, \reg1
51 	ldp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APDAKEYLO_EL1)]
52 	msr_s	SYS_APDAKEYLO_EL1, \reg1
54 	ldp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APDBKEYLO_EL1)]
55 	msr_s	SYS_APDBKEYLO_EL1, \reg1
57 	ldp	\reg1, \reg2, [\base, #PTRAUTH_REG_OFFSET(CPU_APGAKEYLO_EL1)]
58 	msr_s	SYS_APGAKEYLO_EL1, \reg1
69 .macro ptrauth_switch_to_guest g_ctxt, reg1, reg2, reg3
73 	mrs	\reg1, hcr_el2
74 	and	\reg1, \reg1, #(HCR_API | HCR_APK)
75 	cbz	\reg1, .L__skip_switch\@
76 	add	\reg1, \g_ctxt, #CPU_APIAKEYLO_EL1
77 	ptrauth_restore_state	\reg1, \reg2, \reg3
81 .macro ptrauth_switch_to_hyp g_ctxt, h_ctxt, reg1, reg2, reg3
85 	mrs	\reg1, hcr_el2
86 	and	\reg1, \reg1, #(HCR_API | HCR_APK)
87 	cbz	\reg1, .L__skip_switch\@
88 	add	\reg1, \g_ctxt, #CPU_APIAKEYLO_EL1
89 	ptrauth_save_state	\reg1, \reg2, \reg3
90 	add	\reg1, \h_ctxt, #CPU_APIAKEYLO_EL1
91 	ptrauth_restore_state	\reg1, \reg2, \reg3
97 .macro ptrauth_switch_to_guest g_ctxt, reg1, reg2, reg3
99 .macro ptrauth_switch_to_hyp g_ctxt, h_ctxt, reg1, reg2, reg3