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| author | niruiyu <niruiyu@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-24 02:57:47 +0000 |
|---|---|---|
| committer | niruiyu <niruiyu@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-09-24 02:57:47 +0000 |
| commit | 7f446eba268ceed7c3ca4bc93db1673c3b353128 (patch) | |
| tree | 9faf213833c4f26da9afd16289e9036116988b5f /IntelFrameworkModulePkg/Csm/LegacyBiosDxe | |
| parent | a9c12422ff2b4d8c4aec3d940302fc61b4ee39f7 (diff) | |
| download | edk2-platforms-7f446eba268ceed7c3ca4bc93db1673c3b353128.tar.xz | |
Handle the case when OpROM wants to completely remove itself.
Signed-off-by: Ruiyu Ni<ruiyu.ni@intel.com>
Reviewed-by: Elvin Li<elvin.li@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13736 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFrameworkModulePkg/Csm/LegacyBiosDxe')
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c index 1d09bb879d..5e155f0705 100644 --- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c +++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacyPci.c @@ -2536,7 +2536,16 @@ LegacyBiosInstallRom ( //
// The ROM could have updated it's size so we need to read again.
//
- *RuntimeImageLength = ((EFI_LEGACY_EXPANSION_ROM_HEADER *) (RuntimeAddress))->Size512 * 512;
+ if ((((EFI_LEGACY_EXPANSION_ROM_HEADER *) RuntimeAddress)->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) &&
+ (((EFI_LEGACY_EXPANSION_ROM_HEADER *) InitAddress)->Size512 == 0)) {
+ //
+ // The INIT function didn't copy the RUNTIME code to RuntimeAddress
+ //
+ *RuntimeImageLength = 0;
+ } else {
+ *RuntimeImageLength = ((EFI_LEGACY_EXPANSION_ROM_HEADER *) RuntimeAddress)->Size512 * 512;
+ }
+
DEBUG ((EFI_D_INFO, " fsize = %x\n", *RuntimeImageLength));
//
|