diff options
| -rw-r--r-- | drivers/kvm/svm.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index fa17d6d4f0c..6cd6a50a034 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -378,7 +378,7 @@ static __init int svm_hardware_setup(void) int cpu; struct page *iopm_pages; struct page *msrpm_pages; - void *msrpm_va; + void *iopm_va, *msrpm_va; int r; kvm_emulator_want_group7_invlpg(); @@ -387,8 +387,10 @@ static __init int svm_hardware_setup(void) if (!iopm_pages) return -ENOMEM; - memset(page_address(iopm_pages), 0xff, - PAGE_SIZE * (1 << IOPM_ALLOC_ORDER)); + + iopm_va = page_address(iopm_pages); + memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER)); + clear_bit(0x80, iopm_va); /* allow direct access to PC debug port */ iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT; |