KVM: Fix vmx I/O bitmap initialization on highmem systems

kunmap() expects a struct page, not a virtual address.  Fixes an oops loading
kvm-intel.ko on i386 with CONFIG_HIGHMEM.

Thanks to Michael Ivanov <deruhu@peterstar.ru> for reporting.

Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index e39ebe0b6958..34171d9008ff 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -2274,11 +2274,11 @@ static int __init vmx_init(void)
         iova = kmap(vmx_io_bitmap_a);
         memset(iova, 0xff, PAGE_SIZE);
         clear_bit(0x80, iova);
-        kunmap(iova);
+        kunmap(vmx_io_bitmap_a);
 
         iova = kmap(vmx_io_bitmap_b);
         memset(iova, 0xff, PAGE_SIZE);
-        kunmap(iova);
+        kunmap(vmx_io_bitmap_b);
 
         r = kvm_init_arch(&vmx_arch_ops, THIS_MODULE);
         if (r)