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Brijesh Singh 3a5e6fb750
cpu/i386: populate CPUID 0x8000_001F when SEV is active 
When SEV is enabled, CPUID 0x8000_001F should provide additional
information regarding the feature (such as which page table bit is used
to mark the pages as encrypted etc).

The details for memory encryption CPUID is available in AMD APM
(https://support.amd.com/TechDocs/24594.pdf) Section E.4.17

Backports relevant parts of commit 6cb8f2a663a47c6e0da17fc4fb9e06abfda2bd48 from qemu
2018-03-15 16:34:39 -04:00
..
arm tcg: Initialize cpu_env generically 2018-03-15 15:49:19 -04:00
i386 cpu/i386: populate CPUID 0x8000_001F when SEV is active 2018-03-15 16:34:39 -04:00
m68k target/m68k: implement fcosh 2018-03-15 16:27:50 -04:00
mips tcg: Initialize cpu_env generically 2018-03-15 15:49:19 -04:00
sparc tcg: Initialize cpu_env generically 2018-03-15 15:49:19 -04:00