[SYCL] Fix reported P2P accessibility across platforms #19785
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The current P2P extension implementation assumes that the devices are from the same platform, which may not be the case. In cases where they are not the same, the adapters will try to access the handles as if they were the layout of the corresponding adapter, which may manifest as invalid accesses or unexpected read internal handle values, which can in turn conflict with actual device handles, potentially causing false positives. This commit adds a check that the devices are from the same platform before requesting the information from the backend. Signed-off-by: Larsen, Steffen <[email protected]>
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Signed-off-by: Larsen, Steffen <[email protected]>
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pbalcer
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cperkinsintel
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Aug 19, 2025
Signed-off-by: Larsen, Steffen <[email protected]>
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The current P2P extension implementation assumes that the devices are from the same platform, which may not be the case. In cases where they are not the same, the adapters will try to access the handles as if they were the layout of the corresponding adapter, which may manifest as invalid accesses or unexpected read internal handle values, which can in turn conflict with actual device handles, potentially causing false positives. This commit adds a check that the devices are from the same platform before requesting the information from the backend.