Messages in this thread - First message in thread
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- "Li, Zhen-Hua"
- Dave Young
- "Li, ZhenHua"
- Baoquan He
- David Woodhouse
Patch in this message |  | | From | "Li, Zhen-Hua" <> | Subject | [PATCH v10 01/10] iommu/vt-d: New function to attach domain with id | Date | Fri, 10 Apr 2015 16:42:04 +0800 |
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Allow specification of the domain-id for the new domain. This patch only adds a new function iommu_attach_domain_with_id, it is like the function iommu_attach_domain(), only adding a parameter "did".
Bill Sumner: (In older versions) Add new 'did' parameter to iommu_attach_domain(); The caller of this function.
Li, Zhenhua: New function iommu_attach_domain_with_id(), instead of updating function iommu_attach_domain();
Signed-off-by: Bill Sumner <billsumnerlinux@gmail.com> Signed-off-by: Li, Zhen-Hua <zhen-hual@hp.com> --- drivers/iommu/intel-iommu.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 2d1e05b..3a93ce0 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -1558,6 +1558,16 @@ static int iommu_attach_domain(struct dmar_domain *domain, return num; } +static int iommu_attach_domain_with_id(struct dmar_domain *domain, + struct intel_iommu *iommu, + int domain_number) +{ + if (domain_number >= 0) + return domain_number; + + return iommu_attach_domain(domain, iommu); +} + static int iommu_attach_vm_domain(struct dmar_domain *domain, struct intel_iommu *iommu) { @@ -2224,6 +2234,7 @@ static struct dmar_domain *get_domain_for_dev(struct device *dev, int gaw) u16 dma_alias; unsigned long flags; u8 bus, devfn; + int did = -1; /* Default to "no domain_id supplied" */ domain = find_domain(dev); if (domain) @@ -2257,7 +2268,7 @@ static struct dmar_domain *get_domain_for_dev(struct device *dev, int gaw) domain = alloc_domain(0); if (!domain) return NULL; - domain->id = iommu_attach_domain(domain, iommu); + domain->id = iommu_attach_domain_with_id(domain, iommu, did); if (domain->id < 0) { free_domain_mem(domain); return NULL; -- 2.0.0-rc0
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