Re: [PATCH] x86/e820: Fix handling of subpage regions when calculating nosave ranges

On Sat, Apr 05, 2025 at 10:09:24AM +0700, msizanoen wrote:

Handle better cases where there might be non-page-aligned RAM e820 regions so we don't end up marking kernel memory as nosave.

This also simplifies the calculation of nosave ranges by treating non-RAM regions as holes.

Fixes: e5540f875404 ("x86/boot/e820: Consolidate 'struct e820_entry *entry' local variable names") Tested-by: Roberto Ricci io@r-ricci.it Reported-by: Roberto Ricci io@r-ricci.it Closes: https://lore.kernel.org/all/Z4WFjBVHpndct7br@desktop0a/ Signed-off-by: msizanoen msizanoen@qtmlabs.xyz

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