1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
55 #include <xen/xen-os.h>
63 #include <contrib/xen/arch-x86/cpuid.h>
67 /*--------------------------- Forward Declarations ---------------------------*/
70 /*-------------------------------- Global Data -------------------------------*/
81  * If non-zero, the hypervisor has been configured to use a direct
92 /*------------------------------- Per-CPU Data -------------------------------*/
95 /*------------------------------ Sysctl tunables -----------------------------*/
101 /*---------------------- XEN Hypervisor Probe and Setup ----------------------*/
113 	    msix_disable_migration == -1) {  in hypervisor_quirks()
116 		 * handle updates to enabled MSI-X table entries,  in hypervisor_quirks()
117 		 * so disable MSI-X interrupt migration in that  in hypervisor_quirks()
122 "Disabling MSI-X interrupt migration due to Xen hypervisor bug.\n"  in hypervisor_quirks()
132 	uint32_t regs[4];  in hypervisor_version()  local
135 	do_cpuid(hv_base + 1, regs);  in hypervisor_version()
137 	major = regs[0] >> 16;  in hypervisor_version()
138 	minor = regs[0] & 0xffff;  in hypervisor_version()
146  * created page-tables.
161 	return ((uintptr_t)addr - KERNBASE  in early_init_vtop()
163 	    + kernphys - KERNLOAD  in early_init_vtop()
173 	 * non-RAM) address.  But finding one at this point in boot is  in map_shared_info()
174 	 * complicated, hence re-use a RAM address for the time being.  This  in map_shared_info()
175 	 * sadly causes super-page shattering in the second stage translation  in map_shared_info()
232 	switch (console->video_type) {  in fixup_console()
244 		    sizeof(fb->efi.fb_mask_reserved),  in fixup_console()
246 		fb->vbe.fb_bpp = console->u.vesa_lfb.bits_per_pixel;  in fixup_console()
258 		fb->efi.fb_addr = console->u.vesa_lfb.lfb_base;  in fixup_console()
261 			fb->efi.fb_addr |=  in fixup_console()
262 			    (uint64_t)console->u.vesa_lfb.ext_lfb_base << 32;  in fixup_console()
263 		fb->efi.fb_size = console->u.vesa_lfb.lfb_size << 16;  in fixup_console()
264 		fb->efi.fb_height = console->u.vesa_lfb.height;  in fixup_console()
265 		fb->efi.fb_width = console->u.vesa_lfb.width;  in fixup_console()
266 		fb->efi.fb_stride = (console->u.vesa_lfb.bytes_per_line << 3) /  in fixup_console()
267 		    console->u.vesa_lfb.bits_per_pixel;  in fixup_console()
269     ((~0u << console->u.vesa_lfb.c ## _pos) & \  in fixup_console()
270     (~0u >> (32 - console->u.vesa_lfb.c ## _pos - \  in fixup_console()
271     console->u.vesa_lfb.c ## _size)))  in fixup_console()
272 		fb->efi.fb_mask_red = FBMASK(red);  in fixup_console()
273 		fb->efi.fb_mask_green = FBMASK(green);  in fixup_console()
274 		fb->efi.fb_mask_blue = FBMASK(blue);  in fixup_console()
275 		fb->efi.fb_mask_reserved = FBMASK(rsvd);  in fixup_console()
289 	uint32_t regs[4];  in xen_early_init()  local
299 	do_cpuid(hv_base + 2, regs);  in xen_early_init()
300 	if (regs[0] != 1) {  in xen_early_init()
302 		    regs[0]);  in xen_early_init()
307 	wrmsr(regs[1], early_init_vtop(&hypercall_page));  in xen_early_init()
384 		pin = pci_get_intpin(dev) - 1;  in xen_hvm_set_callback()
497 	uint32_t regs[4];  in xen_hvm_cpu_init()  local
506 		 * from a failed migration and our pre-suspend  in xen_hvm_cpu_init()
517 	cpuid_count(hv_base + 4, 0, regs);  in xen_hvm_cpu_init()
518 	KASSERT((regs[0] & XEN_HVM_CPUID_VCPU_ID_PRESENT) ||  in xen_hvm_cpu_init()
521 	PCPU_SET(vcpu_id, (regs[0] & XEN_HVM_CPUID_VCPU_ID_PRESENT) ?  in xen_hvm_cpu_init()
522 	    regs[1] : PCPU_GET(acpi_id));  in xen_hvm_cpu_init()
526 		 * Setup the per-vpcu event channel upcall vector. This is only  in xen_hvm_cpu_init()
545 	uint32_t regs[4];  in xen_has_iommu_maps()  local
548 	cpuid_count(hv_base + 4, 0, regs);  in xen_has_iommu_maps()
550 	return (regs[0] & XEN_HVM_CPUID_IOMMU_MAPPINGS);  in xen_has_iommu_maps()
581 		end = MIN(trunc_page(smap[i].base + smap[i].length) - 1,  in xen_arch_init_physmem()