1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/acpi.h>
 3#include <linux/export.h>
 4
 5#include <xen/hvc-console.h>
 6
 7#include <asm/io_apic.h>
 8#include <asm/hypervisor.h>
 9#include <asm/e820/api.h>
10
11#include <xen/xen.h>
12#include <asm/xen/interface.h>
13#include <asm/xen/hypercall.h>
14
15#include <xen/interface/memory.h>
16
17#include "xen-ops.h"
18
19/*
20 * PVH variables.
21 *
22 * The variable xen_pvh needs to live in a data segment since it is used
23 * after startup_{32|64} is invoked, which will clear the .bss segment.
24 */
25bool __ro_after_init xen_pvh;
26EXPORT_SYMBOL_GPL(xen_pvh);
27
28void __init xen_pvh_init(struct boot_params *boot_params)
29{
30	u32 msr;
31	u64 pfn;
32
33	xen_pvh = 1;
34	xen_domain_type = XEN_HVM_DOMAIN;
35	xen_start_flags = pvh_start_info.flags;
36
37	msr = cpuid_ebx(xen_cpuid_base() + 2);
38	pfn = __pa(hypercall_page);
39	wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
40
41	if (xen_initial_domain())
42		x86_init.oem.arch_setup = xen_add_preferred_consoles;
43	x86_init.oem.banner = xen_banner;
44
45	xen_efi_init(boot_params);
46}
47
48void __init mem_map_via_hcall(struct boot_params *boot_params_p)
49{
50	struct xen_memory_map memmap;
51	int rc;
52
53	memmap.nr_entries = ARRAY_SIZE(boot_params_p->e820_table);
54	set_xen_guest_handle(memmap.buffer, boot_params_p->e820_table);
55	rc = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap);
56	if (rc) {
57		xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc);
58		BUG();
59	}
60	boot_params_p->e820_entries = memmap.nr_entries;
61}

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/acpi.h>
 
 3
 4#include <xen/hvc-console.h>
 5
 6#include <asm/io_apic.h>
 7#include <asm/hypervisor.h>
 8#include <asm/e820/api.h>
 9
10#include <xen/xen.h>
11#include <asm/xen/interface.h>
12#include <asm/xen/hypercall.h>
13
14#include <xen/interface/memory.h>
15
16#include "xen-ops.h"
17
18/*
19 * PVH variables.
20 *
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.
23 */
24bool xen_pvh __attribute__((section(".data"))) = 0;
 
25
26void __init xen_pvh_init(struct boot_params *boot_params)
27{
28	u32 msr;
29	u64 pfn;
30
31	xen_pvh = 1;
32	xen_domain_type = XEN_HVM_DOMAIN;
33	xen_start_flags = pvh_start_info.flags;
34
35	msr = cpuid_ebx(xen_cpuid_base() + 2);
36	pfn = __pa(hypercall_page);
37	wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
 
 
 
 
38
39	xen_efi_init(boot_params);
40}
41
42void __init mem_map_via_hcall(struct boot_params *boot_params_p)
43{
44	struct xen_memory_map memmap;
45	int rc;
46
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);
50	if (rc) {
51		xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc);
52		BUG();
53	}
54	boot_params_p->e820_entries = memmap.nr_entries;
55}