From: "Maciej Czajkowski" <maciej.czajkowski@intel.com>
To: devel@edk2.groups.io
Cc: Hao A Wu <hao.a.wu@intel.com>, Ray Ni <ray.ni@intel.com>
Subject: [PATCH v1] MdeModulePkg/AhciPei: Fix MMIO base assignment
Date: Fri, 9 Sep 2022 20:10:55 +0200 [thread overview]
Message-ID: <20220909181055.1237-1-maciej.czajkowski@intel.com> (raw)
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
---------------------------------------------------------------------
Intel Technology Poland sp. z o.o.
ul. Slowackiego 173 | 80-298 Gdansk | Sad Rejonowy Gdansk Polnoc | VII Wydzial Gospodarczy Krajowego Rejestru Sadowego - KRS 101882 | NIP 957-07-52-316 | Kapital zakladowy 200.000 PLN.
Spolka oswiadcza, ze posiada status duzego przedsiebiorcy w rozumieniu ustawy z dnia 8 marca 2013 r. o przeciwdzialaniu nadmiernym opoznieniom w transakcjach handlowych.
Ta wiadomosc wraz z zalacznikami jest przeznaczona dla okreslonego adresata i moze zawierac informacje poufne. W razie przypadkowego otrzymania tej wiadomosci, prosimy o powiadomienie nadawcy oraz trwale jej usuniecie; jakiekolwiek przegladanie lub rozpowszechnianie jest zabronione.
This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). If you are not the intended recipient, please contact the sender and delete all copies; any review or distribution by others is strictly prohibited.
next reply other threads:[~2022-09-09 18:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-09 18:10 Maciej Czajkowski [this message]
2022-09-13 4:36 ` [PATCH v1] MdeModulePkg/AhciPei: Fix MMIO base assignment Wu, Hao A
2022-09-15 4:18 ` [edk2-devel] " Wu, Hao A
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220909181055.1237-1-maciej.czajkowski@intel.com \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox