提交 cd0536d7 编写于 作者: A Avi Kivity

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: NAvi Kivity <avi@qumranet.com>
上级 653e3108
......@@ -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)
......
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