Re: [PATCH v10 07/12] cxl: Validate HDM ranges before CXL reset
[email protected] Tue, 04 Aug 2026 19:38:45 +0000
| Newsgroups | org.kernel.vger.linux-cxl,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <[email protected]> |
> Before reset, require cached HDM decoder state, collect enabled decoder > ranges, and reserve them with request_mem_region(). This rejects reset > while affected CXL memory is busy and keeps the validation stable > through reset. >=20 > If CPU cache invalidation support is available, invalidate the affected > ranges before reset. If the runtime backend is unavailable, continue > after the range reservation succeeds. >=20 > Reject CXL Reset when no cached HDM decoder state is available. The reset > path needs the cached address map to validate affected ranges and perform > CPU cache invalidation. Also reject normalized-addressing decoders for > now because the cached decoder range is not a system physical address. >=20 > Signed-off-by: Srirangan Madhavan <[email protected]> Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260804192958.1823= [email protected]?part=3D7