lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20220915013157.60771-5-liulongfang@huawei.com>
Date:   Thu, 15 Sep 2022 09:31:56 +0800
From:   Longfang Liu <liulongfang@...wei.com>
To:     <alex.williamson@...hat.com>, <jgg@...dia.com>,
        <shameerali.kolothum.thodi@...wei.com>
CC:     <cohuck@...hat.com>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...neuler.org>, <liulongfang@...wei.com>
Subject: [PATCH 4/5] hisi_acc_vfio_pci: Fix device data address combination problem

The queue address of the accelerator device should be combined into
a dma address in a way of combining the low and high bits.
The previous combination is wrong and needs to be modified.

Signed-off-by: Longfang Liu <liulongfang@...wei.com>
---
 drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
index c172a52088b7..fce49c7f5db8 100644
--- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
+++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
@@ -527,12 +527,12 @@ static int vf_qm_state_save(struct hisi_acc_vf_core_device *hisi_acc_vdev,
 		return -EINVAL;
 
 	/* Every reg is 32 bit, the dma address is 64 bit. */
-	vf_data->eqe_dma = vf_data->qm_eqc_dw[2];
+	vf_data->eqe_dma = vf_data->qm_eqc_dw[1];
 	vf_data->eqe_dma <<= QM_XQC_ADDR_OFFSET;
-	vf_data->eqe_dma |= vf_data->qm_eqc_dw[1];
-	vf_data->aeqe_dma = vf_data->qm_aeqc_dw[2];
+	vf_data->eqe_dma |= vf_data->qm_eqc_dw[0];
+	vf_data->aeqe_dma = vf_data->qm_aeqc_dw[1];
 	vf_data->aeqe_dma <<= QM_XQC_ADDR_OFFSET;
-	vf_data->aeqe_dma |= vf_data->qm_aeqc_dw[1];
+	vf_data->aeqe_dma |= vf_data->qm_aeqc_dw[0];
 
 	/* Through SQC_BT/CQC_BT to get sqc and cqc address */
 	ret = qm_get_sqc(vf_qm, &vf_data->sqc_dma);
-- 
2.33.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ