@@ -192,11 +192,11 @@ static void __init noreturn blexit(const CHAR16 *str)
efi_bs->FreePages(kernel.addr, PFN_UP(kernel.size));
if ( ramdisk.addr )
efi_bs->FreePages(ramdisk.addr, PFN_UP(ramdisk.size));
- if ( ucode.addr )
- efi_bs->FreePages(ucode.addr, PFN_UP(ucode.size));
if ( xsm.addr )
efi_bs->FreePages(xsm.addr, PFN_UP(xsm.size));
+ efi_arch_blexit();
+
efi_bs->Exit(efi_ih, EFI_SUCCESS, 0, NULL);
unreachable(); /* not reached */
}
@@ -592,12 +592,7 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
if ( status != EFI_SUCCESS )
PrintErrMesg(L"No Loaded Image Protocol", status);
- xen_phys_start = (UINTN)loaded_image->ImageBase;
- if ( (xen_phys_start + loaded_image->ImageSize - 1) >> 32 )
- blexit(L"Xen must be loaded below 4Gb.");
- if ( xen_phys_start & ((1 << L2_PAGETABLE_SHIFT) - 1) )
- blexit(L"Xen must be loaded at a 2Mb boundary.");
- trampoline_xen_phys_start = xen_phys_start;
+ efi_arch_load_addr_check(loaded_image);
/* Get the file system interface. */
dir_handle = get_parent_handle(loaded_image, &file_name.w);
@@ -794,12 +789,7 @@ efi_start(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
efi_arch_edd();
/* XXX Collect EDID info. */
-
- if ( cpuid_eax(0x80000000) > 0x80000000 )
- {
- cpuid_ext_features = cpuid_edx(0x80000001);
- boot_cpu_data.x86_capability[1] = cpuid_ext_features;
- }
+ efi_arch_cpu();
efi_arch_runtime_setup(SystemTable);
@@ -982,6 +982,14 @@ static void __init efi_arch_handle_module(struct file *file, char *name,
++mbi.mods_count;
}
+static void __init efi_arch_cpu(void)
+{
+ if ( cpuid_eax(0x80000000) > 0x80000000 )
+ {
+ cpuid_ext_features = cpuid_edx(0x80000001);
+ boot_cpu_data.x86_capability[1] = cpuid_ext_features;
+ }
+}
static void __init efi_arch_smbios(void)
{
if (efi.smbios != EFI_INVALID_TABLE_ADDR)
@@ -1035,3 +1043,18 @@ static void __init efi_arch_runtime_setup(EFI_SYSTEM_TABLE *SystemTable)
PrintStr(newline);
}
}
+static void __init efi_arch_blexit(void)
+{
+ if ( ucode.addr )
+ efi_bs->FreePages(ucode.addr, PFN_UP(ucode.size));
+}
+
+static void __init efi_arch_load_addr_check(EFI_LOADED_IMAGE *loaded_image)
+{
+ xen_phys_start = (UINTN)loaded_image->ImageBase;
+ if ( (xen_phys_start + loaded_image->ImageSize - 1) >> 32 )
+ blexit(L"Xen must be loaded below 4Gb.");
+ if ( xen_phys_start & ((1 << L2_PAGETABLE_SHIFT) - 1) )
+ blexit(L"Xen must be loaded at a 2Mb boundary.");
+ trampoline_xen_phys_start = xen_phys_start;
+}
Add efi_arch_blexit() for arch specific cleanup on error exit, efi_arch_load_addr_check() to do the arch specific verifications of where the UEFI firmware loaded XEN, and efi_arch_cpu() for probing CPU features. Signed-off-by: Roy Franz <roy.franz@linaro.org> --- xen/common/efi/boot.c | 18 ++++-------------- xen/include/asm-x86/efi-boot.h | 23 +++++++++++++++++++++++ 2 files changed, 27 insertions(+), 14 deletions(-)