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hv: vtd: move public API to the bottom part of the file

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Move move public API to the bottom part of the file.

Tracked-On: #1855
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Binbin Wu 2018-11-08 13:42:07 +08:00 committed by lijinxia
parent efb249235a
commit 32ed3d1a76
1 changed files with 44 additions and 45 deletions
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89
hypervisor/arch/x86/vtd.c
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@ -796,51 +796,6 @@ static void dmar_disable(struct dmar_drhd_rt *dmar_unit)
dmar_fault_event_mask(dmar_unit); dmar_fault_event_mask(dmar_unit);
} }
struct iommu_domain *create_iommu_domain(uint16_t vm_id, uint64_t translation_table, uint32_t addr_width)
{
struct iommu_domain *domain;
/* TODO: check if a domain with the vm_id exists */
if (translation_table == 0UL) {
pr_err("translation table is NULL");
return NULL;
}
/*
* A hypercall is called to create an iommu domain for a valid VM,
* and hv code limit the VM number to CONFIG_MAX_VM_NUM.
* So the array iommu_domains will not be accessed out of range.
*/
domain = &iommu_domains[vmid_to_domainid(vm_id)];
domain->is_host = false;
domain->vm_id = vm_id;
domain->trans_table_ptr = translation_table;
domain->addr_width = addr_width;
domain->is_tt_ept = true;
domain->iommu_snoop = true;
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);
return domain;
}
/**
* @pre domain != NULL
*/
void destroy_iommu_domain(struct iommu_domain *domain)
{
/* currently only support ept */
if (!domain->is_tt_ept) {
ASSERT(false, "translation_table is not EPT!");
}
/* TODO: check if any device assigned to this domain */
(void)memset(domain, 0U, sizeof(*domain));
}
static int add_iommu_device(struct iommu_domain *domain, uint16_t segment, uint8_t bus, uint8_t devfun) static int add_iommu_device(struct iommu_domain *domain, uint16_t segment, uint8_t bus, uint8_t devfun)
{ {
struct dmar_drhd_rt *dmar_unit; struct dmar_drhd_rt *dmar_unit;
@ -994,6 +949,50 @@ static int remove_iommu_device(const struct iommu_domain *domain, uint16_t segme
return 0; return 0;
} }
struct iommu_domain *create_iommu_domain(uint16_t vm_id, uint64_t translation_table, uint32_t addr_width)
{
struct iommu_domain *domain;
/* TODO: check if a domain with the vm_id exists */
if (translation_table == 0UL) {
pr_err("translation table is NULL");
return NULL;
}
/*
* A hypercall is called to create an iommu domain for a valid VM,
* and hv code limit the VM number to CONFIG_MAX_VM_NUM.
* So the array iommu_domains will not be accessed out of range.
*/
domain = &iommu_domains[vmid_to_domainid(vm_id)];
domain->is_host = false;
domain->vm_id = vm_id;
domain->trans_table_ptr = translation_table;
domain->addr_width = addr_width;
domain->is_tt_ept = true;
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);
return domain;
}
/**
* @pre domain != NULL
*/
void destroy_iommu_domain(struct iommu_domain *domain)
{
/* currently only support ept */
if (!domain->is_tt_ept) {
ASSERT(false, "translation_table is not EPT!");
}
/* TODO: check if any device assigned to this domain */
(void)memset(domain, 0U, sizeof(*domain));
}
int assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun) int assign_iommu_device(struct iommu_domain *domain, uint8_t bus, uint8_t devfun)
{ {
/* TODO: check if the device assigned */ /* TODO: check if the device assigned */