1 // SPDX-License-Identifier: GPL-2.0
4  * Hyper-V specific APIC code.
44 static void hv_apic_icr_write(u32 low, u32 id)  in hv_apic_icr_write()  argument
48 	reg_val = SET_XAPIC_DEST_FIELD(id);  in hv_apic_icr_write()
92 	if (hvp && (xchg(&hvp->apic_assist, 0) & 0x1))  in hv_apic_eoi_write()
104  * IPI implementation on Hyper-V.
123 	ipi_arg->vector = vector;  in __send_ipi_mask_ex()
124 	ipi_arg->reserved = 0;  in __send_ipi_mask_ex()
125 	ipi_arg->vp_set.valid_bank_mask = 0;  in __send_ipi_mask_ex()
129 	 * when the IPI is sent to all currently present CPUs.  in __send_ipi_mask_ex()
132 		ipi_arg->vp_set.format = HV_GENERIC_SET_SPARSE_4K;  in __send_ipi_mask_ex()
134 		nr_bank = cpumask_to_vpset_skip(&ipi_arg->vp_set, mask,  in __send_ipi_mask_ex()
145 		ipi_arg->vp_set.format = HV_GENERIC_SET_ALL;  in __send_ipi_mask_ex()
210 		 * This particular version of the IPI hypercall can  in __send_ipi_mask()
291 		pr_info("Hyper-V: Using IPI hypercalls\n");  in hv_apic_init()
293 		 * Set the IPI entry points.  in hv_apic_init()
306 		pr_info("Hyper-V: Using enlightened APIC (%s mode)",  in hv_apic_init()
309 		 * When in x2apic mode, don't use the Hyper-V specific APIC  in hv_apic_init()
312 		 * x2apic MSRs function just as well as the Hyper-V  in hv_apic_init()
314 		 * separate Hyper-V accessors for x2apic mode. The only  in hv_apic_init()