[Xen-devel] [PATCH 1/2] xen/setup: Remove redundant filtering of PTE masks.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

commit 7347b4082e55ac4a673f06a0a0ce25c37273c9ec "xen: Allow
unprivileged Xen domains to create iomap pages" added a redundant
line in the early bootup code to filter out the PTE. That
filtering is already done a bit earlier so this extra processing
is not required.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 arch/x86/xen/enlighten.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 12eb07b..7c44e1b 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1204,10 +1204,6 @@ asmlinkage void __init xen_start_kernel(void)
 
        pgd = (pgd_t *)xen_start_info->pt_base;
 
-       if (!xen_initial_domain())
-               __supported_pte_mask &= ~(_PAGE_PWT | _PAGE_PCD);
-
-       __supported_pte_mask |= _PAGE_IOMAP;
        /* Don't do the full vcpu_info placement stuff until we have a
           possible map and a non-dummy shared_info. */
        per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
-- 
1.7.9.48.g85da4d


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