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| author | Laszlo Ersek <lersek@redhat.com> | 2015-11-30 18:42:10 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-11-30 18:42:10 +0000 |
| commit | 1a7edbbca105c56cd63c19ccc94e4284dbd5c2d0 (patch) | |
| tree | 681c6f14976fff36a47151ee98410afc1433a084 /OvmfPkg/PlatformPei/MemDetect.c | |
| parent | 542534456b48cbb3f803449669ba3cccbf828c0b (diff) | |
| download | edk2-1a7edbbca105c56cd63c19ccc94e4284dbd5c2d0.tar.gz edk2-1a7edbbca105c56cd63c19ccc94e4284dbd5c2d0.tar.bz2 edk2-1a7edbbca105c56cd63c19ccc94e4284dbd5c2d0.zip | |
OvmfPkg: PlatformPei: don't allocate fake lockbox if SMM_REQUIRE
Since our fake LockBox must not be selected with -D SMM_REQUIRE (see the
previous patch), it makes sense to set aside memory for it only if -D
SMM_REQUIRE is absent. Modify InitializeRamRegions() accordingly.
This patch completes the -D SMM_REQUIRE-related tweaking of the special
OVMF memory areas.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19047 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/PlatformPei/MemDetect.c')
| -rw-r--r-- | OvmfPkg/PlatformPei/MemDetect.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/OvmfPkg/PlatformPei/MemDetect.c b/OvmfPkg/PlatformPei/MemDetect.c index 1bdc2df6ed..455fcbb49d 100644 --- a/OvmfPkg/PlatformPei/MemDetect.c +++ b/OvmfPkg/PlatformPei/MemDetect.c @@ -407,25 +407,27 @@ InitializeRamRegions ( }
if (mBootMode != BOOT_ON_S3_RESUME) {
- //
- // Reserve the lock box storage area
- //
- // Since this memory range will be used on S3 resume, it must be
- // reserved as ACPI NVS.
- //
- // If S3 is unsupported, then various drivers might still write to the
- // LockBox area. We ought to prevent DXE from serving allocation requests
- // such that they would overlap the LockBox storage.
- //
- ZeroMem (
- (VOID*)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageBase),
- (UINTN) PcdGet32 (PcdOvmfLockBoxStorageSize)
- );
- BuildMemoryAllocationHob (
- (EFI_PHYSICAL_ADDRESS)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageBase),
- (UINT64)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageSize),
- mS3Supported ? EfiACPIMemoryNVS : EfiBootServicesData
- );
+ if (!FeaturePcdGet (PcdSmmSmramRequire)) {
+ //
+ // Reserve the lock box storage area
+ //
+ // Since this memory range will be used on S3 resume, it must be
+ // reserved as ACPI NVS.
+ //
+ // If S3 is unsupported, then various drivers might still write to the
+ // LockBox area. We ought to prevent DXE from serving allocation requests
+ // such that they would overlap the LockBox storage.
+ //
+ ZeroMem (
+ (VOID*)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageBase),
+ (UINTN) PcdGet32 (PcdOvmfLockBoxStorageSize)
+ );
+ BuildMemoryAllocationHob (
+ (EFI_PHYSICAL_ADDRESS)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageBase),
+ (UINT64)(UINTN) PcdGet32 (PcdOvmfLockBoxStorageSize),
+ mS3Supported ? EfiACPIMemoryNVS : EfiBootServicesData
+ );
+ }
if (FeaturePcdGet (PcdSmmSmramRequire)) {
UINT32 TsegSize;
|