MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4041
There is a mistake in getting MMIO base using PciDevicePpi that
can lead to the data corruption.
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Maciej Czajkowski <maciej.czajkowski@intel.com>
---
MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
index 98dd732a4023..47367f43f73a 100644
--- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
+++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c
@@ -405,7 +405,7 @@ AtaAhciInitPrivateDataFromPciDevice (
{
EFI_STATUS Status;
PCI_TYPE00 PciData;
- UINTN MmioBase;
+ UINT32 MmioBase;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
UINTN DevicePathLength;
UINT64 EnabledPciAttributes;
@@ -454,12 +454,13 @@ AtaAhciInitPrivateDataFromPciDevice (
&PciDevice->PciIo,
EfiPciIoWidthUint32,
0x24,
- sizeof (UINTN),
+ 1,
&MmioBase
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
+ MmioBase &= 0xFFFFFFF0;
DevicePathLength = GetDevicePathSize (PciDevice->DevicePath);
DevicePath = PciDevice->DevicePath;
--
2.27.0.windows.1
---------------------------------------------------------------------
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Reviewed-by: Hao A Wu <hao.a.wu@intel.com> Best Regards, Hao Wu > -----Original Message----- > From: Czajkowski, Maciej <maciej.czajkowski@intel.com> > Sent: Saturday, September 10, 2022 2:11 AM > To: devel@edk2.groups.io > Cc: Wu, Hao A <hao.a.wu@intel.com>; Ni, Ray <ray.ni@intel.com> > Subject: [PATCH v1] MdeModulePkg/AhciPei: Fix MMIO base assignment > > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4041 > > There is a mistake in getting MMIO base using PciDevicePpi that > can lead to the data corruption. > > Cc: Hao A Wu <hao.a.wu@intel.com> > Cc: Ray Ni <ray.ni@intel.com> > Signed-off-by: Maciej Czajkowski <maciej.czajkowski@intel.com> > --- > MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > index 98dd732a4023..47367f43f73a 100644 > --- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > +++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > @@ -405,7 +405,7 @@ AtaAhciInitPrivateDataFromPciDevice ( > { > > EFI_STATUS Status; > > PCI_TYPE00 PciData; > > - UINTN MmioBase; > > + UINT32 MmioBase; > > EFI_DEVICE_PATH_PROTOCOL *DevicePath; > > UINTN DevicePathLength; > > UINT64 EnabledPciAttributes; > > @@ -454,12 +454,13 @@ AtaAhciInitPrivateDataFromPciDevice ( > &PciDevice->PciIo, > > EfiPciIoWidthUint32, > > 0x24, > > - sizeof (UINTN), > > + 1, > > &MmioBase > > ); > > if (EFI_ERROR (Status)) { > > return EFI_UNSUPPORTED; > > } > > + MmioBase &= 0xFFFFFFF0; > > > > DevicePathLength = GetDevicePathSize (PciDevice->DevicePath); > > DevicePath = PciDevice->DevicePath; > > -- > 2.27.0.windows.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#93690): https://edk2.groups.io/g/devel/message/93690 Mute This Topic: https://groups.io/mt/93579279/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
Pushed via: PR - https://github.com/tianocore/edk2/pull/3338 Commit - https://github.com/tianocore/edk2/commit/1dccbd1a382aa57719e4e0432b3bd6a03a888507 Best Regards, Hao Wu > -----Original Message----- > From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Wu, Hao > A > Sent: Tuesday, September 13, 2022 12:36 PM > To: Czajkowski, Maciej <maciej.czajkowski@intel.com>; > devel@edk2.groups.io > Cc: Ni, Ray <ray.ni@intel.com> > Subject: Re: [edk2-devel] [PATCH v1] MdeModulePkg/AhciPei: Fix MMIO > base assignment > > Reviewed-by: Hao A Wu <hao.a.wu@intel.com> > > Best Regards, > Hao Wu > > > -----Original Message----- > > From: Czajkowski, Maciej <maciej.czajkowski@intel.com> > > Sent: Saturday, September 10, 2022 2:11 AM > > To: devel@edk2.groups.io > > Cc: Wu, Hao A <hao.a.wu@intel.com>; Ni, Ray <ray.ni@intel.com> > > Subject: [PATCH v1] MdeModulePkg/AhciPei: Fix MMIO base assignment > > > > REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4041 > > > > There is a mistake in getting MMIO base using PciDevicePpi that can > > lead to the data corruption. > > > > Cc: Hao A Wu <hao.a.wu@intel.com> > > Cc: Ray Ni <ray.ni@intel.com> > > Signed-off-by: Maciej Czajkowski <maciej.czajkowski@intel.com> > > --- > > MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > > b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > > index 98dd732a4023..47367f43f73a 100644 > > --- a/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > > +++ b/MdeModulePkg/Bus/Ata/AhciPei/AhciPei.c > > @@ -405,7 +405,7 @@ AtaAhciInitPrivateDataFromPciDevice ( { > > > > EFI_STATUS Status; > > > > PCI_TYPE00 PciData; > > > > - UINTN MmioBase; > > > > + UINT32 MmioBase; > > > > EFI_DEVICE_PATH_PROTOCOL *DevicePath; > > > > UINTN DevicePathLength; > > > > UINT64 EnabledPciAttributes; > > > > @@ -454,12 +454,13 @@ AtaAhciInitPrivateDataFromPciDevice ( > > &PciDevice->PciIo, > > > > EfiPciIoWidthUint32, > > > > 0x24, > > > > - sizeof (UINTN), > > > > + 1, > > > > &MmioBase > > > > ); > > > > if (EFI_ERROR (Status)) { > > > > return EFI_UNSUPPORTED; > > > > } > > > > + MmioBase &= 0xFFFFFFF0; > > > > > > > > DevicePathLength = GetDevicePathSize (PciDevice->DevicePath); > > > > DevicePath = PciDevice->DevicePath; > > > > -- > > 2.27.0.windows.1 > > > > > -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#93799): https://edk2.groups.io/g/devel/message/93799 Mute This Topic: https://groups.io/mt/93579279/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=-=-=-=-=-=-=-=-=-=-=-
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