diff options
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 3 | ||||
| -rw-r--r-- | OvmfPkg/XenBusDxe/GrantTable.c | 3 | ||||
| -rw-r--r-- | OvmfPkg/XenBusDxe/XenBusDxe.h | 1 | ||||
| -rw-r--r-- | OvmfPkg/XenBusDxe/XenBusDxe.inf | 3 |
4 files changed, 8 insertions, 2 deletions
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 04d5e29272..d5fee805ef 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -225,6 +225,9 @@ gUefiOvmfPkgTokenSpaceGuid.PcdXenPvhStartOfDayStructPtr|0x0|UINT32|0x17
gUefiOvmfPkgTokenSpaceGuid.PcdXenPvhStartOfDayStructPtrSize|0x0|UINT32|0x32
+ ## Number of page frames to use for storing grant table entries.
+ gUefiOvmfPkgTokenSpaceGuid.PcdXenGrantFrames|4|UINT32|0x33
+
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable|FALSE|BOOLEAN|0x10
diff --git a/OvmfPkg/XenBusDxe/GrantTable.c b/OvmfPkg/XenBusDxe/GrantTable.c index 6575e9b88c..1130404cd1 100644 --- a/OvmfPkg/XenBusDxe/GrantTable.c +++ b/OvmfPkg/XenBusDxe/GrantTable.c @@ -22,8 +22,7 @@ #define NR_RESERVED_ENTRIES 8
-/* NR_GRANT_FRAMES must be less than or equal to that configured in Xen */
-#define NR_GRANT_FRAMES 4
+#define NR_GRANT_FRAMES (FixedPcdGet32 (PcdXenGrantFrames))
#define NR_GRANT_ENTRIES (NR_GRANT_FRAMES * EFI_PAGE_SIZE / sizeof(grant_entry_v1_t))
STATIC grant_entry_v1_t *GrantTable = NULL;
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.h b/OvmfPkg/XenBusDxe/XenBusDxe.h index 8510361bca..b1dcc3549c 100644 --- a/OvmfPkg/XenBusDxe/XenBusDxe.h +++ b/OvmfPkg/XenBusDxe/XenBusDxe.h @@ -22,6 +22,7 @@ #include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
//
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.inf b/OvmfPkg/XenBusDxe/XenBusDxe.inf index 86e0fb8224..536b49fa8c 100644 --- a/OvmfPkg/XenBusDxe/XenBusDxe.inf +++ b/OvmfPkg/XenBusDxe/XenBusDxe.inf @@ -51,6 +51,7 @@ XenHypercallLib
SynchronizationLib
PrintLib
+ PcdLib
[Protocols]
gEfiDriverBindingProtocolGuid
@@ -59,3 +60,5 @@ gXenBusProtocolGuid
gXenIoProtocolGuid
+[FixedPcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdXenGrantFrames
|