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Backport #63 to 6.18-lts: xen/dom0: refactor dom0 memory growth to avoid splitting based on `max` - #67

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alexandermerritt merged 7 commits into

edera/6.18-ltsfrom

backport/edera-6.18-lts/pr-63

Oct 29, 2026

Merged

Backport #63 to 6.18-lts: xen/dom0: refactor dom0 memory growth to avoid splitting based on `max`#67
alexandermerritt merged 7 commits into
edera/6.18-ltsfrom
backport/edera-6.18-lts/pr-63

Commits on Oct 29, 2026
- Revert "x86/xen: include the Xen types before interface/memory.h"
  
  alexandermerritt
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  51afe6f
- Revert "x86/xen: keep dom0's growth room on the balloon"
  
  alexandermerritt
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  ee8832f
- Revert "xen/balloon: add boot-time extra memory as 2 MiB blocks"
  
  alexandermerritt
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  c58a234
- xen/unpopulated-alloc: add push_page()
  
  alexandermerritt
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  4cd5486
- xen/unpopulated-alloc: keep boot-time address space as 2 MiB blocks
  
  alexandermerritt
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  9910f3e
- xen/balloon: grow dom0 into 2 MiB blocks from the unpopulated allocator
  
  alexandermerritt
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  9d3c282
- xen/balloon: report how far dom0 can still grow
  
  alexandermerritt
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  300c09f