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authorLaszlo Ersek <lersek@redhat.com>2015-11-30 18:41:29 +0000
committerlersek <lersek@Edk2>2015-11-30 18:41:29 +0000
commitcdef34ec12f91023fa86bb49d1f33541d87eb132 (patch)
tree5e13d4076cf9e4d5de9ebfa90da91a90cc8c176f /OvmfPkg
parentefb0f16e9839b39830bf3eb4017d5964f06c7122 (diff)
downloadedk2-platforms-cdef34ec12f91023fa86bb49d1f33541d87eb132.tar.xz
OvmfPkg: PlatformPei: allow caching in AddReservedMemoryBaseSizeHob()
AddReservedMemoryBaseSizeHob() should be able to set the same resource attributes for reserved memory as AddMemoryBaseSizeHob() sets for system memory. Add a new parameter called "Cacheable" to AddReservedMemoryBaseSizeHob(), and set it to FALSE in the only caller we have at the moment. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19038 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg')
-rw-r--r--OvmfPkg/PlatformPei/Platform.c9
-rw-r--r--OvmfPkg/PlatformPei/Platform.h3
-rw-r--r--OvmfPkg/PlatformPei/Xen.c2
3 files changed, 11 insertions, 3 deletions
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c
index a6d961673d..0b11275157 100644
--- a/OvmfPkg/PlatformPei/Platform.c
+++ b/OvmfPkg/PlatformPei/Platform.c
@@ -88,7 +88,8 @@ AddIoMemoryBaseSizeHob (
VOID
AddReservedMemoryBaseSizeHob (
EFI_PHYSICAL_ADDRESS MemoryBase,
- UINT64 MemorySize
+ UINT64 MemorySize,
+ BOOLEAN Cacheable
)
{
BuildResourceDescriptorHob (
@@ -96,6 +97,12 @@ AddReservedMemoryBaseSizeHob (
EFI_RESOURCE_ATTRIBUTE_PRESENT |
EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
+ (Cacheable ?
+ EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
+ EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE :
+ 0
+ ) |
EFI_RESOURCE_ATTRIBUTE_TESTED,
MemoryBase,
MemorySize
diff --git a/OvmfPkg/PlatformPei/Platform.h b/OvmfPkg/PlatformPei/Platform.h
index 8b6a9760eb..dad3c61e26 100644
--- a/OvmfPkg/PlatformPei/Platform.h
+++ b/OvmfPkg/PlatformPei/Platform.h
@@ -50,7 +50,8 @@ AddUntestedMemoryBaseSizeHob (
VOID
AddReservedMemoryBaseSizeHob (
EFI_PHYSICAL_ADDRESS MemoryBase,
- UINT64 MemorySize
+ UINT64 MemorySize,
+ BOOLEAN Cacheable
);
VOID
diff --git a/OvmfPkg/PlatformPei/Xen.c b/OvmfPkg/PlatformPei/Xen.c
index 1886326f20..7fa9019f1a 100644
--- a/OvmfPkg/PlatformPei/Xen.c
+++ b/OvmfPkg/PlatformPei/Xen.c
@@ -223,7 +223,7 @@ InitializeXen (
// Reserve away HVMLOADER reserved memory [0xFC000000,0xFD000000).
// This needs to match HVMLOADER RESERVED_MEMBASE/RESERVED_MEMSIZE.
//
- AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000);
+ AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000, FALSE);
PcdSetBool (PcdPciDisableBusEnumeration, TRUE);