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[edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit assignment

Benjamin Doron posted 1 patch 2 years, 9 months ago
Failed in applying to current master (apply log)
Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit assignment
Posted by Benjamin Doron 2 years, 9 months ago 
In the case where the root bridge's Mem.Limit is the base address of
PCIe MMIO, subtract one to make a valid end address.

This fixes an issue where CpuDxe returns "Length(0x50000001) is not
aligned!" when PciHostBridgeDxe attempts to make this range uncacheable.

Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
---
 Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c
index e231f747019e..0e3fee28b5d1 100644
--- a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c
+++ b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBridgeLibSimple.c
@@ -90,7 +90,7 @@ PciHostBridgeGetRootBridges (
   if (PcdGet32(PcdPciReservedMemLimit) != 0) {
     mRootBridgeTemplate.Mem.Limit = PcdGet32 (PcdPciReservedMemLimit);
   } else {
-    mRootBridgeTemplate.Mem.Limit = (UINT32) PcdGet64 (PcdPciExpressBaseAddress);
+    mRootBridgeTemplate.Mem.Limit = (UINT32) PcdGet64 (PcdPciExpressBaseAddress) - 1;
   }
 
   mRootBridgeTemplate.MemAbove4G.Base = PcdGet64 (PcdPciReservedMemAbove4GBBase);
-- 
2.31.1



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Re: [edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit assignment
Posted by Chiu, Chasel 2 years, 9 months ago 
Thanks for fixing this issue! Reviewed-by: Chasel Chiu <chasel.chiu@intel.com>

> -----Original Message-----
> From: Benjamin Doron <benjamin.doron00@gmail.com>
> Sent: Friday, July 23, 2021 10:27 AM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>
> Subject: [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit
> assignment
> 
> In the case where the root bridge's Mem.Limit is the base address of PCIe
> MMIO, subtract one to make a valid end address.
> 
> This fixes an issue where CpuDxe returns "Length(0x50000001) is not
> aligned!" when PciHostBridgeDxe attempts to make this range uncacheable.
> 
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
> ---
> 
> Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostB
> ridgeLibSimple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> index e231f747019e..0e3fee28b5d1 100644
> ---
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> +++ b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/P
> +++ ciHostBridgeLibSimple.c
> @@ -90,7 +90,7 @@ PciHostBridgeGetRootBridges (
>    if (PcdGet32(PcdPciReservedMemLimit) != 0)
> {     mRootBridgeTemplate.Mem.Limit = PcdGet32
> (PcdPciReservedMemLimit);   } else {-    mRootBridgeTemplate.Mem.Limit =
> (UINT32) PcdGet64 (PcdPciExpressBaseAddress);+
> mRootBridgeTemplate.Mem.Limit = (UINT32) PcdGet64
> (PcdPciExpressBaseAddress) - 1;   }
> mRootBridgeTemplate.MemAbove4G.Base = PcdGet64
> (PcdPciReservedMemAbove4GBBase);--
> 2.31.1



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Re: [edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit assignment
Posted by Nate DeSimone 2 years, 9 months ago 
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>

> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of
> Benjamin Doron
> Sent: Thursday, July 22, 2021 7:27 PM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Dong, Eric <eric.dong@intel.com>
> Subject: [edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple:
> Fix Mem.Limit assignment
> 
> In the case where the root bridge's Mem.Limit is the base address of PCIe
> MMIO, subtract one to make a valid end address.
> 
> This fixes an issue where CpuDxe returns "Length(0x50000001) is not
> aligned!" when PciHostBridgeDxe attempts to make this range uncacheable.
> 
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
> ---
> 
> Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostB
> ridgeLibSimple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> index e231f747019e..0e3fee28b5d1 100644
> ---
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHos
> tBridgeLibSimple.c
> +++ b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/P
> +++ ciHostBridgeLibSimple.c
> @@ -90,7 +90,7 @@ PciHostBridgeGetRootBridges (
>    if (PcdGet32(PcdPciReservedMemLimit) != 0) {
> mRootBridgeTemplate.Mem.Limit = PcdGet32 (PcdPciReservedMemLimit);
> } else {-    mRootBridgeTemplate.Mem.Limit = (UINT32) PcdGet64
> (PcdPciExpressBaseAddress);+    mRootBridgeTemplate.Mem.Limit =
> (UINT32) PcdGet64 (PcdPciExpressBaseAddress) - 1;   }
> mRootBridgeTemplate.MemAbove4G.Base = PcdGet64
> (PcdPciReservedMemAbove4GBBase);--
> 2.31.1
> 
> 
> 
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> [nathaniel.l.desimone@intel.com] -=-=-=-=-=-=
> 



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Re: [edk2-devel] [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit assignment
Posted by Chiu, Chasel 2 years, 9 months ago 
Patch pushed: 69e6a5e160551fdd09ce367e9c97c25d8683a3ac

Thanks,
Chasel



> -----Original Message-----
> From: Benjamin Doron <benjamin.doron00@gmail.com>
> Sent: Friday, July 23, 2021 10:27 AM
> To: devel@edk2.groups.io
> Cc: Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>;
> Dong, Eric <eric.dong@intel.com>
> Subject: [PATCH v2] MinPlatformPkg/PciHostBridgeLibSimple: Fix Mem.Limit
> assignment
> 
> In the case where the root bridge's Mem.Limit is the base address of PCIe MMIO,
> subtract one to make a valid end address.
> 
> This fixes an issue where CpuDxe returns "Length(0x50000001) is not aligned!"
> when PciHostBridgeDxe attempts to make this range uncacheable.
> 
> Cc: Chasel Chiu <chasel.chiu@intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Eric Dong <eric.dong@intel.com>
> Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
> ---
> 
> Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBrid
> geLibSimple.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBr
> idgeLibSimple.c
> b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBr
> idgeLibSimple.c
> index e231f747019e..0e3fee28b5d1 100644
> ---
> a/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/PciHostBr
> idgeLibSimple.c
> +++ b/Platform/Intel/MinPlatformPkg/Pci/Library/PciHostBridgeLibSimple/P
> +++ ciHostBridgeLibSimple.c
> @@ -90,7 +90,7 @@ PciHostBridgeGetRootBridges (
>    if (PcdGet32(PcdPciReservedMemLimit) != 0)
> {     mRootBridgeTemplate.Mem.Limit = PcdGet32 (PcdPciReservedMemLimit);   }
> else {-    mRootBridgeTemplate.Mem.Limit = (UINT32) PcdGet64
> (PcdPciExpressBaseAddress);+    mRootBridgeTemplate.Mem.Limit = (UINT32)
> PcdGet64 (PcdPciExpressBaseAddress) - 1;   }
> mRootBridgeTemplate.MemAbove4G.Base = PcdGet64
> (PcdPciReservedMemAbove4GBBase);--
> 2.31.1



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