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xen: branch for v7.0-rc1a

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Merge tag 'for-linus-7.0-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "A single patch fixing a boot regression when running as a Xen PV
  guest. This issue was introduced in this merge window"

* tag 'for-linus-7.0-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: Fix Xen PV guest boot
This commit is contained in:
Linus Torvalds 2026-02-20 08:57:35 -08:00
commit c8cb804a8a
1 changed files with 5 additions and 1 deletions
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6
arch/x86/xen/mmu_pv.c
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@ -509,6 +509,9 @@ static pgd_t *xen_get_user_pgd(pgd_t *pgd)
unsigned offset = pgd - pgd_page;
pgd_t *user_ptr = NULL;
if (!static_branch_likely(&xen_struct_pages_ready))
return NULL;
if (offset < pgd_index(USER_LIMIT)) {
struct page *page = virt_to_page(pgd_page);
user_ptr = (pgd_t *)page->private;
@ -1098,7 +1101,8 @@ static void __init xen_cleanmfnmap_free_pgtbl(void *pgtbl, bool unpin)
if (unpin)
pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, PFN_DOWN(pa));
ClearPagePinned(virt_to_page(__va(pa)));
if (static_branch_likely(&xen_struct_pages_ready))
ClearPagePinned(virt_to_page(__va(pa)));
xen_free_ro_pages(pa, PAGE_SIZE);
}