3  * cap_audit.c - audit iommu capabilities for boot time and hot plug
13 #include "iommu.h"
74 static int cap_audit_hotplug(struct intel_iommu *iommu, enum cap_audit_type type)  in cap_audit_hotplug()  argument
81 		CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, pi_support, CAP_PI_MASK);  in cap_audit_hotplug()
82 		CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, eim_support, ECAP_EIM_MASK);  in cap_audit_hotplug()
86 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, fl5lp_support, CAP_FL5LP_MASK);  in cap_audit_hotplug()
87 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, fl1gp_support, CAP_FL1GP_MASK);  in cap_audit_hotplug()
88 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, read_drain, CAP_RD_MASK);  in cap_audit_hotplug()
89 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, write_drain, CAP_WD_MASK);  in cap_audit_hotplug()
90 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, pgsel_inv, CAP_PSI_MASK);  in cap_audit_hotplug()
91 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, zlr, CAP_ZLR_MASK);  in cap_audit_hotplug()
92 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, caching_mode, CAP_CM_MASK);  in cap_audit_hotplug()
93 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, phmr, CAP_PHMR_MASK);  in cap_audit_hotplug()
94 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, plmr, CAP_PLMR_MASK);  in cap_audit_hotplug()
95 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, rwbf, CAP_RWBF_MASK);  in cap_audit_hotplug()
96 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, cap, afl, CAP_AFL_MASK);  in cap_audit_hotplug()
97 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, rps, ECAP_RPS_MASK);  in cap_audit_hotplug()
98 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, smpwc, ECAP_SMPWC_MASK);  in cap_audit_hotplug()
99 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, flts, ECAP_FLTS_MASK);  in cap_audit_hotplug()
100 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, slts, ECAP_SLTS_MASK);  in cap_audit_hotplug()
101 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, nwfs, ECAP_NWFS_MASK);  in cap_audit_hotplug()
102 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, slads, ECAP_SLADS_MASK);  in cap_audit_hotplug()
103 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, smts, ECAP_SMTS_MASK);  in cap_audit_hotplug()
104 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, pds, ECAP_PDS_MASK);  in cap_audit_hotplug()
105 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, dit, ECAP_DIT_MASK);  in cap_audit_hotplug()
106 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, pasid, ECAP_PASID_MASK);  in cap_audit_hotplug()
107 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, eafs, ECAP_EAFS_MASK);  in cap_audit_hotplug()
108 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, srs, ECAP_SRS_MASK);  in cap_audit_hotplug()
109 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, ers, ECAP_ERS_MASK);  in cap_audit_hotplug()
110 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, prs, ECAP_PRS_MASK);  in cap_audit_hotplug()
111 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, nest, ECAP_NEST_MASK);  in cap_audit_hotplug()
112 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, mts, ECAP_MTS_MASK);  in cap_audit_hotplug()
113 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, sc_support, ECAP_SC_MASK);  in cap_audit_hotplug()
114 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, pass_through, ECAP_PT_MASK);  in cap_audit_hotplug()
115 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, dev_iotlb_support, ECAP_DT_MASK);  in cap_audit_hotplug()
116 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, qis, ECAP_QI_MASK);  in cap_audit_hotplug()
117 	CHECK_FEATURE_MISMATCH_HOTPLUG(iommu, ecap, coherent, ECAP_C_MASK);  in cap_audit_hotplug()
119 	/* Abort hot plug if the hot plug iommu feature is smaller than global */  in cap_audit_hotplug()
120 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, max_amask_val, CAP_MAMV_MASK, mismatch);  in cap_audit_hotplug()
121 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, num_fault_regs, CAP_NFR_MASK, mismatch);  in cap_audit_hotplug()
122 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, super_page_val, CAP_SLLPS_MASK, mismatch);  in cap_audit_hotplug()
123 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, fault_reg_offset, CAP_FRO_MASK, mismatch);  in cap_audit_hotplug()
124 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, mgaw, CAP_MGAW_MASK, mismatch);  in cap_audit_hotplug()
125 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, sagaw, CAP_SAGAW_MASK, mismatch);  in cap_audit_hotplug()
126 	MINIMAL_FEATURE_HOTPLUG(iommu, cap, ndoms, CAP_NDOMS_MASK, mismatch);  in cap_audit_hotplug()
127 	MINIMAL_FEATURE_HOTPLUG(iommu, ecap, pss, ECAP_PSS_MASK, mismatch);  in cap_audit_hotplug()
128 	MINIMAL_FEATURE_HOTPLUG(iommu, ecap, max_handle_mask, ECAP_MHMV_MASK, mismatch);  in cap_audit_hotplug()
129 	MINIMAL_FEATURE_HOTPLUG(iommu, ecap, iotlb_offset, ECAP_IRO_MASK, mismatch);  in cap_audit_hotplug()
141 static int cap_audit_static(struct intel_iommu *iommu, enum cap_audit_type type)  in cap_audit_static()  argument
152 		if (!iommu) {  in cap_audit_static()
155 			iommu = i;  in cap_audit_static()
160 			check_dmar_capabilities(iommu, i);  in cap_audit_static()
162 			check_irq_capabilities(iommu, i);  in cap_audit_static()
178 int intel_cap_audit(enum cap_audit_type type, struct intel_iommu *iommu)  in intel_cap_audit()  argument
183 		return cap_audit_static(iommu, type);  in intel_cap_audit()
186 		return cap_audit_hotplug(iommu, type);  in intel_cap_audit()