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hv: bugfix in function 'write_vmsix_cap_reg()' 

- Fix bug when setting input 'offset' before calling
   'pci_vdev_read_cfg()' and 'pci_pdev_write_cfg()'

Tracked-On: #5407
Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
Reviewed-by: Li, Fei <fei1.li@intel.com>
Reviewed-by: Wang, Yu1 <yu1.wang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Yonghua Huang 2020-09-21 17:01:24 +08:00 committed by wenlingz
parent 53165c3332
commit 4ade4473ae
1 changed files with 2 additions and 2 deletions
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4
hypervisor/dm/vpci/vmsix.c
View File

@ -136,7 +136,7 @@ void write_vmsix_cap_reg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes,
(void)memcpy_s((void *)&ro_mask, bytes, (void *)&msix_ro_mask[offset - vdev->msix.capoff], bytes);
if (ro_mask != ~0U) {
old = pci_vdev_read_vcfg(vdev, vdev->msix.capoff, bytes);
old = pci_vdev_read_vcfg(vdev, offset, bytes);
pci_vdev_write_vcfg(vdev, offset, bytes, (old & ro_mask) | (val & ~ro_mask));
msgctrl = pci_vdev_read_vcfg(vdev, vdev->msix.capoff + PCIR_MSIX_CTRL, 2U);
@ -144,7 +144,7 @@ void write_vmsix_cap_reg(struct pci_vdev *vdev, uint32_t offset, uint32_t bytes,
if ((msgctrl & PCIM_MSIXCTRL_MSIX_ENABLE) != 0U) {
enable_disable_pci_intx(vdev->pdev->bdf, false);
}
pci_pdev_write_cfg(vdev->pdev->bdf, offset, 2U, msgctrl);
pci_pdev_write_cfg(vdev->pdev->bdf, vdev->msix.capoff + PCIR_MSIX_CTRL, 2U, msgctrl);
}
}