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>

parent 653e3108

drivers/kvm/vmx.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)