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dm:add function passthru_gpu_dsm_opregion for passthru_init

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Pack GPU DSM(Data Stolen Memory) and Opregion related operations
into function passthru_gpu_dsm_opregion to avoid passthru_init too mess.

Tracked-On: #4700

Signed-off-by: Junming Liu <junming.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Liu XinYun <xinyun.liu@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Junming Liu 2020-04-24 00:13:45 +08:00 committed by wenlingz
parent b45c24b062
commit 795225d55e
1 changed files with 28 additions and 19 deletions
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47
devicemodel/hw/pci/passthrough.c
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@ -401,6 +401,32 @@ pciaccess_init(void)
return 0; /* success */ return 0; /* success */
} }
/*
* passthrough GPU DSM(Data Stolen Memory) and Opregion to guest
*/
void
passthru_gpu_dsm_opregion(struct vmctx *ctx, struct passthru_dev *ptdev,
struct acrn_assign_pcidev *pcidev)
{
uint32_t dsm_phys, opregion_phys;
/* get dsm hpa */
dsm_phys = read_config(ptdev->phys_dev, PCIR_BDSM, 4);
dsm_start_hpa = dsm_phys & PCIM_BDSM_MASK;
/* initialize the EPT mapping for passthrough GPU dsm region */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_DSM_GPA, GPU_DSM_SIZE, dsm_start_hpa);
/* get opregion hpa */
opregion_phys = read_config(ptdev->phys_dev, PCIR_ASLS_CTL, 4);
opregion_start_hpa = opregion_phys & PCIM_ASLS_OPREGION_MASK;
/* initialize the EPT mapping for passthrough GPU opregion */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_OPREGION_GPA, GPU_OPREGION_SIZE, opregion_start_hpa);
pci_set_cfgdata32(ptdev->dev, PCIR_BDSM, GPU_DSM_GPA | (dsm_phys & ~PCIM_BDSM_MASK));
pci_set_cfgdata32(ptdev->dev, PCIR_ASLS_CTL, GPU_OPREGION_GPA | (opregion_phys & ~PCIM_ASLS_OPREGION_MASK));
pcidev->type = QUIRK_PTDEV;
}
/* /*
* Passthrough device initialization function: * Passthrough device initialization function:
* - initialize virtual config space * - initialize virtual config space
@ -523,25 +549,8 @@ passthru_init(struct vmctx *ctx, struct pci_vdev *dev, char *opts)
if (error < 0) if (error < 0)
goto done; goto done;
if (ptdev->phys_bdf == PCI_BDF_GPU) { if (ptdev->phys_bdf == PCI_BDF_GPU)
uint32_t dsm_phys, opregion_phys; passthru_gpu_dsm_opregion(ctx, ptdev, &pcidev);
/* get dsm hpa */
dsm_phys = read_config(ptdev->phys_dev, PCIR_BDSM, 4);
dsm_start_hpa = dsm_phys & PCIM_BDSM_MASK;
/* initialize the EPT mapping for passthrough GPU dsm region */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_DSM_GPA, GPU_DSM_SIZE, dsm_start_hpa);
/* get opregion hpa */
opregion_phys = read_config(ptdev->phys_dev, PCIR_ASLS_CTL, 4);
opregion_start_hpa = opregion_phys & PCIM_ASLS_OPREGION_MASK;
/* initialize the EPT mapping for passthrough GPU opregion */
vm_map_ptdev_mmio(ctx, 0, 2, 0, GPU_OPREGION_GPA, GPU_OPREGION_SIZE, opregion_start_hpa);
pci_set_cfgdata32(dev, PCIR_BDSM, GPU_DSM_GPA | (dsm_phys & ~PCIM_BDSM_MASK));
pci_set_cfgdata32(dev, PCIR_ASLS_CTL, GPU_OPREGION_GPA | (opregion_phys & ~PCIM_ASLS_OPREGION_MASK));
pcidev.type = QUIRK_PTDEV;
}
pcidev.virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func); pcidev.virt_bdf = PCI_BDF(dev->bus, dev->slot, dev->func);
pcidev.phys_bdf = ptdev->phys_bdf; pcidev.phys_bdf = ptdev->phys_bdf;