diff options
Diffstat (limited to 'OvmfPkg/Library/LoadLinuxLib')
| -rw-r--r-- | OvmfPkg/Library/LoadLinuxLib/Linux.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/OvmfPkg/Library/LoadLinuxLib/Linux.c b/OvmfPkg/Library/LoadLinuxLib/Linux.c index b06285c51a..1da5507ff1 100644 --- a/OvmfPkg/Library/LoadLinuxLib/Linux.c +++ b/OvmfPkg/Library/LoadLinuxLib/Linux.c @@ -119,6 +119,34 @@ LoadLinuxAllocateKernelSetupPages ( }
}
+EFI_STATUS
+EFIAPI
+LoadLinuxInitializeKernelSetup (
+ IN VOID *KernelSetup
+ )
+{
+ EFI_STATUS Status;
+ UINTN SetupEnd;
+ struct boot_params *Bp;
+
+ Status = BasicKernelSetupCheck (KernelSetup);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Bp = (struct boot_params*) KernelSetup;
+
+ SetupEnd = 0x202 + (Bp->hdr.jump & 0xff);
+
+ //
+ // Clear all but the setup_header
+ //
+ ZeroMem (KernelSetup, 0x1f1);
+ ZeroMem (((UINT8 *)KernelSetup) + SetupEnd, 4096 - SetupEnd);
+ DEBUG ((EFI_D_INFO, "Cleared kernel setup 0-0x1f1, 0x%x-0x1000\n", SetupEnd));
+
+ return EFI_SUCCESS;
+}
VOID*
EFIAPI
|