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Re: [Xen-devel] [PATCH v6 05/10] xsm: add XENMEM_soft_reset support

On 05/22/2015 05:40 AM, Jan Beulich wrote:
On 13.05.15 at 11:49, <vkuznets@xxxxxxxxxx> wrote:
--- a/xen/include/xsm/dummy.h
+++ b/xen/include/xsm/dummy.h
@@ -193,6 +193,13 @@ static XSM_INLINE int xsm_memory_exchange(XSM_DEFAULT_ARG 
struct domain *d)
      return xsm_default_action(action, current->domain, d);

+static XSM_INLINE int xsm_memory_soft_reset(XSM_DEFAULT_ARG struct domain *d1,
+                                           struct domain *d2)
+    return xsm_default_action(action, current->domain, NULL);

Why XSM_PRIV instead of XSM_TARGET against _both_ domains?


Unless there is a change in how XSM_TARGET is implemented, the result
is going to be equivalent: it is not possible for a domain to have
more than one target at a time, so if current->domain is not dom0,
then one of the two XSM_TARGET checks will fail.

Daniel De Graaf
National Security Agency

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