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PPC: KVM: Make NX bit available with magic page

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Because old kernels enable the magic page and then choke on NXed trampoline
code we have to disable NX by default in KVM when we use the magic page.

However, since commit b18db0b8 we have successfully fixed that and can now
leave NX enabled, so tell the hypervisor about this.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2014-05-12 01:11:55 +02:00
parent f3383cf80e
commit 5c165aeca3
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/kvm.c
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@ -417,7 +417,7 @@ static void kvm_map_magic_page(void *data)
ulong out[8];
in[0] = KVM_MAGIC_PAGE;
in[1] = KVM_MAGIC_PAGE;
in[1] = KVM_MAGIC_PAGE | MAGIC_PAGE_FLAG_NOT_MAPPED_NX;
epapr_hypercall(in, out, KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE));