From: Jan Beulich Date: Thu, 30 Sep 2021 12:36:56 +0000 (+0200) Subject: xen/x86: there's no highmem anymore in PV mode X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=344485a21ddb6a21b0911a06fafce18170381d47;p=linux.git 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 Reviewed-by: Boris Ostrovsky Link: https://lore.kernel.org/r/ba6e0779-18f4-ae64-b216-73205b4eec3c@suse.com Signed-off-by: Boris Ostrovsky --- diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 8bfc103301077..c1eba7e1d242a 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -306,10 +306,6 @@ static void __init xen_update_mem_tables(unsigned long pfn, unsigned long mfn) BUG(); } - /* Update kernel mapping, but not for highmem. */ - if (pfn >= PFN_UP(__pa(high_memory - 1))) - return; - if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT), mfn_pte(mfn, PAGE_KERNEL), 0)) { WARN(1, "Failed to update kernel mapping for mfn=%ld pfn=%ld\n",