Runtime Domain Schedules #1511

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Indanz wants to merge 2 commits into seL4:master from Indanz:domain

+342 −126

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Indanz commented Sep 10, 2025 •

edited by lsf37

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Implements RFC-20.

TODO:

Indanz marked this pull request as draft

September 10, 2025 10:28

Indanz mentioned this pull request

RFC-20: Runtime Domain Schedules seL4/rfcs#33

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lsf37 commented Sep 10, 2025

Good to see the old domain tests failing -- that means we're actually doing something :). This should disappear once we've updated sel4test accordingly.

Indanz force-pushed the domain branch 3 times, most recently from cf74237 to 5a31b7d Compare

December 13, 2025 16:13

Indanz marked this pull request as ready for review

December 13, 2025 16:14

Indanz force-pushed the domain branch from 5a31b7d to 0d78def Compare

December 13, 2025 16:16

Contributor Author

Indanz commented Dec 13, 2025

Main changes:

Changed to 64-bit only version.
Moved all domain code from tcb.c to src/object/domain.c
Removed activate argument.

Indanz force-pushed the domain branch from 0d78def to 4c0d628 Compare

December 13, 2025 16:46

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lsf37 left a comment

This is looking good to me and is implementing the RFC as approved. Will leave out the tick for now so we don't accidentally merge before verification is finished.

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lsf37 commented Dec 15, 2025

Rename DomainSetSet to DomainSet?

Given that the change is only breaking if you are using the kernel API directly, we should at least have a deprecation period for the old DomainSetSet if we change it.

lsf37 requested a review from Xaphiosis

December 15, 2025 23:59

Indanz force-pushed the domain branch from ff096dd to 32c598e Compare

December 16, 2025 16:04

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Indanz force-pushed the domain branch 2 times, most recently from 8478ad1 to dc84b9b Compare

December 29, 2025 21:43


          Runtime Domain Schedules

76f0ae6

Implements RFC-20.

Signed-off-by: Indan Zupancic <indan@nul.nu>

Indanz force-pushed the domain branch from dc84b9b to 76f0ae6 Compare

December 31, 2025 19:12

lsf37 added this to seL4 March 26 release

github-project-automation bot moved this to Todo in seL4 March 26 release


          Export timer frequency to user space

1fb1264

Useful for configuring domains.

Signed-off-by: Indan Zupancic <indan@nul.nu>

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include/object/domain.h

+              #define DSCHED_MAX_DURATION (UINT64_MAX >> DSCHED_DOMAIN_BITS)
+              #define DSCHED_DURATION_MASK DSCHED_MAX_DURATION
+              static dschedule_t dschedule_make(dom_t domain, uint64_t duration)

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lsf37 Jan 19, 2026

Suggested change

      
            static dschedule_t dschedule_make(dom_t domain, uint64_t duration)
          
            static inline dschedule_t dschedule_make(dom_t domain, uint64_t duration)

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