On Tue, Nov 03, 2020 at 03:49:48PM -0800, Ben Gardon wrote:
> Rounding the address the guest writes to a host page boundary
> will only have an effect if the host page size is larger than the guest
> page size, but in that case the guest write would still go to the same
> host page. There's no reason to round the address down, so remove the
> rounding to simplify the demand paging test.
>
> Signed-off-by: Ben Gardon <bgardon@xxxxxxxxxx>
> ---
> tools/testing/selftests/kvm/demand_paging_test.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c
> index 360cd3ea4cd67..32a42eafc6b5c 100644
> --- a/tools/testing/selftests/kvm/demand_paging_test.c
> +++ b/tools/testing/selftests/kvm/demand_paging_test.c
> @@ -103,7 +103,6 @@ static void guest_code(uint32_t vcpu_id)
> for (i = 0; i < pages; i++) {
> uint64_t addr = gva + (i * guest_page_size);
>
> - addr &= ~(host_page_size - 1);
> *(uint64_t *)addr = 0x0123456789ABCDEF;
> }
>
> --
> 2.29.1.341.ge80a0c044ae-goog
>
Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>
