[xen master] x86/iommu: introduce AMD-Vi and Intel VT-d Kconfig options

[patchbot@xxxxxxx]

commit c47e5d94d0bd0c283bf7f1b31e42314065d82be4
Author:     Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
AuthorDate: Thu Jan 12 11:09:16 2023 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Jan 12 11:09:16 2023 +0100

    x86/iommu: introduce AMD-Vi and Intel VT-d Kconfig options
    
    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@xxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/drivers/passthrough/Kconfig  | 6 ++++++
 xen/drivers/passthrough/Makefile | 4 ++--
 2 files changed, 8 insertions(+), 2 deletions(-)

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/
 
--
generated by git-patchbot for /home/xen/git/xen.git#master