[PATCH] docs/x86: Update AMD IOMMU specification locationi

[Richard Lyu]

The current link to the AMD I/O Virtualization Technology IOMMU
specification (document 48882) in Documentation/arch/x86/iommu.rst
is outdated and points to a defunct URL on the AMD website.

Update the link in Documentation/arch/x86/iommu.rst to the current stable
location for the specification. This ensures users can easily access the
required architectural details.

Signed-off-by: Richard Lyu <richard.lyu@xxxxxxxx>
---
 Documentation/arch/x86/iommu.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/arch/x86/iommu.rst b/Documentation/arch/x86/iommu.rst
index 41fbadfe2221..cd1843812b4b 100644
--- a/Documentation/arch/x86/iommu.rst
+++ b/Documentation/arch/x86/iommu.rst
@@ -5,7 +5,7 @@ x86 IOMMU Support
 The architecture specs can be obtained from the below locations.
 
 - Intel: http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/vt-directed-io-spec.pdf
-- AMD: https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/specifications/48882_3_07_PUB.pdf
+- AMD: https://docs.amd.com/v/u/en-US/48882_IOMMU
 
 This guide gives a quick cheat sheet for some basic understanding.
 
-- 
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