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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.
This commit is contained in:
Zhao Yakui 2019-06-19 09:35:41 +08:00
parent 625d339961
commit 7e34be2d09
1 changed files with 2 additions and 2 deletions
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4
hypervisor/arch/x86/vtd.c
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@ -179,7 +179,7 @@ bool iommu_snoop_supported(const struct iommu_domain *iommu)
bool ret;
if ((iommu == NULL) || (iommu->iommu_snoop)) {
ret = true;
ret = false;
} else {
ret = false;
}
@ -1244,7 +1244,7 @@ struct iommu_domain *create_iommu_domain(uint16_t vm_id, uint64_t translation_ta
domain->trans_table_ptr = translation_table;
domain->addr_width = addr_width;
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",
vmid_to_domainid(domain->vm_id), domain->vm_id, domain->trans_table_ptr);