diff options
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c index 397295b..04013d9 100644 --- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c +++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyBootSupport.c @@ -1204,10 +1204,17 @@ GenericLegacyBoot ( //
EfiSignalEventLegacyBoot ();
DEBUG ((EFI_D_INFO, "Legacy INT19 Boot...\n"));
+
+ //
+ // Disable DXE Timer while executing in real mode
//
- // Raise TPL to high level to disable CPU interrupts
+ Private->Timer->SetTimerPeriod (Private->Timer, 0);
+
//
- gBS->RaiseTPL (TPL_HIGH_LEVEL);
+ // Save and disable interrupt of debug timer
+ //
+ SaveAndSetDebugTimerInterrupt (FALSE);
+
//
// Put the 8259 into its legacy mode by reprogramming the vector bases
|