<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - sw_init of IP block <vega10_ih> failed -12 when using Secure Memory Encryption (SME) with Vega 64" href="https://bugs.freedesktop.org/show_bug.cgi?id=110929#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - sw_init of IP block <vega10_ih> failed -12 when using Secure Memory Encryption (SME) with Vega 64" href="https://bugs.freedesktop.org/show_bug.cgi?id=110929">bug 110929</a> from <a class="email" href="mailto:john.bridgman@amd.com" title="John Bridgman <john.bridgman@amd.com>"> John Bridgman</a> <pre>How are you enabling SME - transparent mode (via SBIOS I think) where all pages are encrypted, or <whatever you call the other mode> via OS where only pages with PA bit 47 set are encrypted ? I would not expect the first option to work since anything written from CPU to GPU will get garbled by the encryption, but the second should work as long as no buffers passed to or allocated by GPU driver are encrypted. I haven't used SME so not sure about options - wasn't aware we even enabled it on Ryzen parts, thought it was Epyc only.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>