From 5c165aeca3e357fbc9760e5f66b6de8ef994e3c7 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Mon, 12 May 2014 01:11:55 +0200 Subject: [PATCH] PPC: KVM: Make NX bit available with magic page 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 --- arch/powerpc/kernel/kvm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 6a0175297b0d..5e6f24f894d9 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -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)); -- 2.34.1