Re: [PATCH 1/3] mseal sysmap: Add mseal_system_mappings= boot parameter

[Jeff Xu]

Hi Chris,

On Wed, Oct 28, 2026 at 01:55:40PM +0800, Chris Down wrote:
> Chris Down writes:
> > - Have check_sealed skip as usual when [vdso] isn't sealed and param
> >   is not set
> > - A new test, say expect_sealed, fails in the same case
> > - run_vmtests runs with -T expect_sealed when
> >   CONFIG_MSEAL_SYSTEM_MAPPINGS=y

> Er, the other way around. I meant vm_runtests passes -T expect_sealed
> _unless_ CONFIG_MSEAL_SYSTEM_MAPPINGS=y.

Using kselftest_harness's `-T expect_sealed` together with checking
`/proc/cmdline` for `no_mseal_sys_mappings` in `check_sealed` sounds
great to me -- very clean and covers both regression cases without extra
argument parsing.

Thanks!
Jeff