The current xhc implementation may exceed the 64K boundary,
so must restrictions need to be added.
Cc: Ray Ni <ray...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Wang Jian J <jian.j.w...@intel.com>
Reviewed-by: Wu Hao A <hao.a...@intel.com>
Signed-off-by: Cheng Zhou <zhouch...@phytium.com.cn>
---
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index c2906e06fd84..0fedc8cfced5 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -891,8 +891,14 @@ CreateTransferRing (
VOID *Buf;
LINK_TRB *EndTrb;
EFI_PHYSICAL_ADDRESS PhyAddr;
+ VOID *NewBuf;
Buf = UsbHcAllocateMem (Xhc->MemPool, sizeof (TRB_TEMPLATE) * TrbNum);
+ if((((UINTN)Buf & ((1<<16)-1)) + sizeof (TRB_TEMPLATE) * TrbNum) & (1<<16)) {
+ NewBuf = UsbHcAllocateMem (Xhc->MemPool,sizeof(TRB_TEMPLATE) * TrbNum);
+ UsbHcFreeMem(Xhc->MemPool,Buf,sizeof(TRB_TEMPLATE)*TrbNum);
+ Buf = NewBuf;
+ }
ASSERT (Buf != NULL);
ASSERT (((UINTN)Buf & 0x3F) == 0);
ZeroMem (Buf, sizeof (TRB_TEMPLATE) * TrbNum);
--
2.17.1
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