The patch below does not apply to the 4.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 1b3ab5ad1b8ad99bae76ec583809c5f5a31c707c Mon Sep 17 00:00:00 2001
From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Date: Mon, 3 Dec 2018 13:52:51 -0800
Subject: [PATCH] KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if
alloc_kvm_area() fails
Fixes: 34a1cd60d17f ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c379d0bfdcba..3ec47b7a94d6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8037,13 +8037,16 @@ static __init int hardware_setup(void)
kvm_mce_cap_supported |= MCG_LMCE_P;
- return alloc_kvm_area();
+ r = alloc_kvm_area();
+ if (r)
+ goto out;
+ return 0;
out:
for (i = 0; i < VMX_BITMAP_NR; i++)
free_page((unsigned long)vmx_bitmap[i]);
- return r;
+ return r;
}
static __exit void hardware_unsetup(void)
