diff options
Diffstat (limited to 'arch/x86/xen')
| -rw-r--r-- | arch/x86/xen/enlighten_pvh.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c index 41a7d6ad74e0..35b7599d2d0b 100644 --- a/arch/x86/xen/enlighten_pvh.c +++ b/arch/x86/xen/enlighten_pvh.c @@ -1,13 +1,18 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/acpi.h> +#include <xen/hvc-console.h> + #include <asm/io_apic.h> #include <asm/hypervisor.h> +#include <asm/e820/api.h> #include <xen/xen.h> #include <asm/xen/interface.h> #include <asm/xen/hypercall.h> +#include <xen/interface/memory.h> + /* * PVH variables. * @@ -28,3 +33,18 @@ void __init xen_pvh_init(void) pfn = __pa(hypercall_page); wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32)); } + +void __init mem_map_via_hcall(struct boot_params *boot_params_p) +{ + struct xen_memory_map memmap; + int rc; + + memmap.nr_entries = ARRAY_SIZE(boot_params_p->e820_table); + set_xen_guest_handle(memmap.buffer, boot_params_p->e820_table); + rc = HYPERVISOR_memory_op(XENMEM_memory_map, &memmap); + if (rc) { + xen_raw_printk("XENMEM_memory_map failed (%d)\n", rc); + BUG(); + } + boot_params_p->e820_entries = memmap.nr_entries; +} |