1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/acpi.h>
4 #include <xen/hvc-console.h>
6 #include <asm/io_apic.h>
7 #include <asm/hypervisor.h>
8 #include <asm/e820/api.h>
11 #include <asm/xen/interface.h>
12 #include <asm/xen/hypercall.h>
14 #include <xen/interface/memory.h>
21 * The variable xen_pvh needs to live in the data segment since it is used
22 * after startup_{32|64} is invoked, which will clear the .bss segment.
24 bool xen_pvh __attribute__((section(".data"))) = 0;
26 void __init xen_pvh_init(struct boot_params *boot_params)
32 xen_domain_type = XEN_HVM_DOMAIN;
33 xen_start_flags = pvh_start_info.flags;
35 msr = cpuid_ebx(xen_cpuid_base() + 2);
36 pfn = __pa(hypercall_page);
37 wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
39 xen_efi_init(boot_params);
42 void __init mem_map_via_hcall(struct boot_params *boot_params_p)
44 struct xen_memory_map memmap;
47 memmap.nr_entries = ARRAY_SIZE(boot_params_p->e820_table);
48 set_xen_guest_handle(memmap.buffer, boot_params_p->e820_table);
49 rc = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap);
51 xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc);
54 boot_params_p->e820_entries = memmap.nr_entries;