tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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xen/x86: there's no highmem anymore in PV mode

Considerations for it are a leftover from when 32-bit was still
supported.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/ba6e0779-18f4-ae64-b216-73205b4eec3c@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

authored by

Jan Beulich and committed by
Boris Ostrovsky 344485a2 d2a3ef44

-4
-4
arch/x86/xen/setup.c
··· 306 306 BUG(); 307 307 } 308 308 309 - /* Update kernel mapping, but not for highmem. */ 310 - if (pfn >= PFN_UP(__pa(high_memory - 1))) 311 - return; 312 - 313 309 if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT), 314 310 mfn_pte(mfn, PAGE_KERNEL), 0)) { 315 311 WARN(1, "Failed to update kernel mapping for mfn=%ld pfn=%ld\n",