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Always disable the iommu_snoop when enabling the IOMMU for GPU

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The IOMMU for GPU doesn't support the snoop_control.
So the iommu_snoop is disabled.

This can fix the issue of consolefb in SOS.

Signed-off-by: Junming Liu <junming.liu@intel.com>

Tracked-On: #4360
This commit is contained in:
Junming Liu 2019-11-14 22:51:13 +00:00 committed by wenlingz
parent ca8f7fa4e4
commit 9dd6ef600d
1 changed files with 2 additions and 2 deletions
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4
hypervisor/arch/x86/vtd.c
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@ -184,7 +184,7 @@ bool iommu_snoop_supported(const struct iommu_domain *iommu)
bool ret; bool ret;
if ((iommu == NULL) || (iommu->iommu_snoop)) { if ((iommu == NULL) || (iommu->iommu_snoop)) {
ret = true; ret = false;
} else { } else {
ret = false; ret = false;
} }
@ -1263,7 +1263,7 @@ struct iommu_domain *create_iommu_domain(uint16_t vm_id, uint64_t translation_ta
domain->trans_table_ptr = translation_table; domain->trans_table_ptr = translation_table;
domain->addr_width = addr_width; domain->addr_width = addr_width;
domain->is_tt_ept = true; domain->is_tt_ept = true;
domain->iommu_snoop = true; domain->iommu_snoop = false;
dev_dbg(ACRN_DBG_IOMMU, "create domain [%d]: vm_id = %hu, ept@0x%x", dev_dbg(ACRN_DBG_IOMMU, "create domain [%d]: vm_id = %hu, ept@0x%x",
vmid_to_domainid(domain->vm_id), domain->vm_id, domain->trans_table_ptr); vmid_to_domainid(domain->vm_id), domain->vm_id, domain->trans_table_ptr);