Hi Liming,
I've attached the patch

Thanks,
Lorena

From: Gao, Liming <liming....@intel.com>
Sent: Thursday, July 2, 2020 8:54 PM
To: devel@edk2.groups.io; Lohr, Paul A <paul.a.l...@intel.com>; Yao, Jiewen 
<jiewen....@intel.com>; De Leon Vazquez, Lorena R 
<lorena.r.de.leon.vazq...@intel.com>
Cc: Kinney, Michael D <michael.d.kin...@intel.com>
Subject: RE: [edk2-devel] [edk2-platforms] [PATCH] IntelSiliconPkg: IOMMU 
generic bug fix

Paul:
  This patch is missing to be merged.

Lorena:
  I can't extract the patch from the mail. Can you send the patch to me? I can 
help merge it.

Thanks
Liming
From: devel@edk2.groups.io<mailto:devel@edk2.groups.io> 
<devel@edk2.groups.io<mailto:devel@edk2.groups.io>> On Behalf Of Lohr, Paul A
Sent: Thursday, July 2, 2020 9:56 PM
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>; Yao, Jiewen 
<jiewen....@intel.com<mailto:jiewen....@intel.com>>; De Leon Vazquez, Lorena R 
<lorena.r.de.leon.vazq...@intel.com<mailto:lorena.r.de.leon.vazq...@intel.com>>
Cc: Kinney, Michael D 
<michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>>
Subject: Re: [edk2-devel] [edk2-platforms] [PATCH] IntelSiliconPkg: IOMMU 
generic bug fix

Hello,

It seems this did not get checked in.  Is there something wrong with the patch 
itself?  Or was this simply submitted incorrectly?  I don't see a Bugzilla 
associated with it is why I ask.

Paul A. Lohr - Server Firmware Enabling
512.239.9073 (cell)
512.794.5044 (work)

From: devel@edk2.groups.io<mailto:devel@edk2.groups.io> 
<devel@edk2.groups.io<mailto:devel@edk2.groups.io>> On Behalf Of Yao, Jiewen
Sent: Monday, March 2, 2020 5:46 PM
To: De Leon Vazquez, Lorena R 
<lorena.r.de.leon.vazq...@intel.com<mailto:lorena.r.de.leon.vazq...@intel.com>>;
 devel@edk2.groups.io<mailto:devel@edk2.groups.io>
Cc: Kinney, Michael D 
<michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>>
Subject: Re: [edk2-devel] [edk2-platforms] [PATCH] IntelSiliconPkg: IOMMU 
generic bug fix

Reviewed-by: jiewen....@intel.com<mailto:jiewen....@intel.com>

From: De Leon Vazquez, Lorena R 
<lorena.r.de.leon.vazq...@intel.com<mailto:lorena.r.de.leon.vazq...@intel.com>>
Sent: Tuesday, March 3, 2020 7:04 AM
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io>
Cc: Yao, Jiewen <jiewen....@intel.com<mailto:jiewen....@intel.com>>; Kinney, 
Michael D <michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>>
Subject: [edk2-platforms] [PATCH] IntelSiliconPkg: IOMMU generic bug fix

Looks like Addresswidth is BIT wise values. Right now these values are not used 
any

Suggested-by: Star Zeng star.z...@intel.com<mailto:star.z...@intel.com>
Signed-off-by: 
lorena.r.de.leon.vazq...@intel.com<mailto:lorena.r.de.leon.vazq...@intel.com>

--
.../Feature/VTd/IntelVTdDxe/TranslationTable.c        | 11 ++++-------
.../Feature/VTd/IntelVTdDxe/TranslationTableEx.c      | 11 ++++-------
2 files changed, 8 insertions(+), 14 deletions(-)

diff --git 
a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c 
b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
index cc970c0..61fbb4a 100644
--- a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
+++ b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTable.c
@@ -128,14 +128,11 @@ CreateContextEntry (

     DEBUG ((DEBUG_INFO,"Source: S%04x B%02x D%02x F%02x\n", 
mVtdUnitInformation[VtdIndex].Segment, SourceId.Bits.Bus, SourceId.Bits.Device, 
SourceId.Bits.Function));

-    switch (mVtdUnitInformation[VtdIndex].CapReg.Bits.SAGAW) {
-    case BIT1:
-      ContextEntry->Bits.AddressWidth = 0x1;
-      break;
-    case BIT2:
-      ContextEntry->Bits.AddressWidth = 0x2;
-      break;
+    if ((mVtdUnitInformation[VtdIndex].CapReg.Bits.SAGAW & BIT2) == 0) {
+      DEBUG((DEBUG_ERROR, "!!!! 4-level page-table is not supported on VTD %d 
!!!!\n", VtdIndex));
+      return error;
     }
+    ContextEntry->Bits.AddressWidth = 0x2;
   }

   FlushPageTableMemory (VtdIndex, 
(UINTN)mVtdUnitInformation[VtdIndex].RootEntryTable, 
EFI_PAGES_TO_SIZE(EntryTablePages));
diff --git 
a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c 
b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c
index 0da1611..6bd31b7 100644
--- a/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c
+++ b/Silicon/Intel/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/TranslationTableEx.c
@@ -78,14 +78,11 @@ CreateExtContextEntry (

     DEBUG ((DEBUG_INFO,"DOMAIN: S%04x, B%02x D%02x F%02x\n", 
mVtdUnitInformation[VtdIndex].Segment, SourceId.Bits.Bus, SourceId.Bits.Device, 
SourceId.Bits.Function));

-    switch (mVtdUnitInformation[VtdIndex].CapReg.Bits.SAGAW) {
-    case BIT1:
-      ExtContextEntry->Bits.AddressWidth = 0x1;
-      break;
-    case BIT2:
-      ExtContextEntry->Bits.AddressWidth = 0x2;
-      break;
+    if ((mVtdUnitInformation[VtdIndex].CapReg.Bits.SAGAW & BIT2) == 0) {
+      DEBUG((DEBUG_ERROR, "!!!! 4-level page-table is not supported on VTD %d 
!!!!\n", VtdIndex));
+      return error;
     }
+    ContextEntry->Bits.AddressWidth = 0x2;
   }

   FlushPageTableMemory (VtdIndex, 
(UINTN)mVtdUnitInformation[VtdIndex].ExtRootEntryTable, 
EFI_PAGES_TO_SIZE(EntryTablePages));
--
2.21.0.windows.1



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Description: 0001-IntelSiliconPkg-IOMMU-generic-bug-fix.patch

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