diff options
Diffstat (limited to 'arch/x86/xen/enlighten.c')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index f17b29210ac4..bc89647f0325 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -32,6 +32,7 @@ #include <linux/gfp.h> #include <linux/memblock.h> #include <linux/edd.h> +#include <linux/efi.h> #include <xen/xen.h> #include <xen/events.h> @@ -1520,6 +1521,7 @@ asmlinkage __visible void __init xen_start_kernel(void) { struct physdev_set_iopl set_iopl; int rc; + efi_system_table_t *efi_systab_xen; if (!xen_start_info) return; @@ -1715,6 +1717,19 @@ asmlinkage __visible void __init xen_start_kernel(void) xen_setup_runstate_info(0); + efi_systab_xen = xen_efi_probe(); + + if (efi_systab_xen) { + strncpy((char *)&boot_params.efi_info.efi_loader_signature, "Xen", + sizeof(boot_params.efi_info.efi_loader_signature)); + boot_params.efi_info.efi_systab = (__u32)__pa(efi_systab_xen); + boot_params.efi_info.efi_systab_hi = (__u32)(__pa(efi_systab_xen) >> 32); + + set_bit(EFI_BOOT, &efi.flags); + set_bit(EFI_PARAVIRT, &efi.flags); + set_bit(EFI_64BIT, &efi.flags); + } + /* Start the world */ #ifdef CONFIG_X86_32 i386_start_kernel(); |