| Message ID | 20230104084502.61734-2-burzalodowa@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Make x86 IOMMU driver support configurable | expand |
On 04.01.2023 09:44, Xenia Ragiadakou wrote: > Introduce two new Kconfig options, AMD_IOMMU and INTEL_IOMMU, to allow code > specific to each IOMMU technology to be separated and, when not required, > stripped. AMD_IOMMU will be used to enable IOMMU support for platforms that > implement the AMD I/O Virtualization Technology. INTEL_IOMMU will be used to > enable IOMMU support for platforms that implement the Intel Virtualization > Technology for Directed I/O. > > Since, at this point, disabling any of them would cause Xen to not compile, > the options are not visible to the user and are enabled by default if X86. > > Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Reviewed-by: Jan Beulich <jbeulich@suse.com>
diff --git a/xen/drivers/passthrough/Kconfig b/xen/drivers/passthrough/Kconfig index 479d7de57a..5c65567744 100644 --- a/xen/drivers/passthrough/Kconfig +++ b/xen/drivers/passthrough/Kconfig @@ -37,6 +37,12 @@ config IPMMU_VMSA endif +config AMD_IOMMU + def_bool y if X86 + +config INTEL_IOMMU + def_bool y if X86 + config IOMMU_FORCE_PT_SHARE bool diff --git a/xen/drivers/passthrough/Makefile b/xen/drivers/passthrough/Makefile index a5efa22714..a1621540b7 100644 --- a/xen/drivers/passthrough/Makefile +++ b/xen/drivers/passthrough/Makefile @@ -1,5 +1,5 @@ -obj-$(CONFIG_X86) += vtd/ -obj-$(CONFIG_X86) += amd/ +obj-$(CONFIG_INTEL_IOMMU) += vtd/ +obj-$(CONFIG_AMD_IOMMU) += amd/ obj-$(CONFIG_X86) += x86/ obj-$(CONFIG_ARM) += arm/
Introduce two new Kconfig options, AMD_IOMMU and INTEL_IOMMU, to allow code specific to each IOMMU technology to be separated and, when not required, stripped. AMD_IOMMU will be used to enable IOMMU support for platforms that implement the AMD I/O Virtualization Technology. INTEL_IOMMU will be used to enable IOMMU support for platforms that implement the Intel Virtualization Technology for Directed I/O. Since, at this point, disabling any of them would cause Xen to not compile, the options are not visible to the user and are enabled by default if X86. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> --- Changes in v2: - just introduce the new options but not make them selectable by the user - adjust commit message - replace CONFIG_INTEL_VTD with CONFIG_INTEL_IOMMU xen/drivers/passthrough/Kconfig | 6 ++++++ xen/drivers/passthrough/Makefile | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-)