Re: [MiNT] Memprot status on XaAES system window

[Jo Even Skarstein <joska@online.no>]

On Wed, 2011-10-05 at 17:36 +0000, Helmut Karlowski wrote:

> The memprot-test in XaAES is nothing complicated, it never failed for me.

Your test doesn't look correct to me. This is your test:

long has_mprot = Ssystem(S_OSFEATURES,0,0);

int l = sprintf( s, sizeof(s)-1, xa_strings[RS_MEMPROT], has_mprot ?
xa_strings[RS_ON] : xa_strings[RS_OFF] );

Your test will always return RS_ON as long as the kernel is compiled
with crypto support. From ssystem.h:

/* A bitfield specifying the built-in system features.
 * Each '1' means that the feature is present:
 * ---
 * 0 - memory protection support (1 = enabled)
 * 1 - virtual memory support (1 = enabled)
 * 2 - storage encryption (1 = supported)
 * 3-31 reserved bits
 * ---
 */

Your test should be:

long has_mprot = (Ssystem(S_OSFEATURES,0,0) & 1);

But I might be wrong. I often am when I try to be clever ;)

Jo Even