unicorn/qemu/target
Konrad Rzeszutek Wilk 0023d048aa
i386: define the AMD 'amd-ssbd' CPUID feature bit
AMD future CPUs expose _two_ ways to utilize the Intel equivalant
of the Speculative Store Bypass Disable. The first is via
the virtualized VIRT_SPEC CTRL MSR (0xC001_011f) and the second
is via the SPEC_CTRL MSR (0x48). The document titled:
124441_AMD64_SpeculativeStoreBypassDisable_Whitepaper_final.pdf

gives priority of SPEC CTRL MSR over the VIRT SPEC CTRL MSR.

A copy of this document is available at
https://bugzilla.kernel.org/show_bug.cgi?id=199889

Anyhow, this means that on future AMD CPUs there will be _two_ ways to
deal with SSBD.

Backports commit a764f3f7197f4d7ad8fe8424269933de912224cb from qemu
2018-07-03 00:24:24 -04:00
..
arm target/arm: Strict alignment for ARMv6-M and ARMv8-M Baseline 2018-06-29 14:15:33 -05:00
i386 i386: define the AMD 'amd-ssbd' CPUID feature bit 2018-07-03 00:24:24 -04:00
m68k target/m68k: Merge disas_m68k_insn into m68k_tr_translate_insn 2018-06-15 11:40:18 -04:00
mips tcg: Pass tb and index to tcg_gen_exit_tb separately 2018-06-07 11:56:32 -04:00
sparc tcg: Pass tb and index to tcg_gen_exit_tb separately 2018-06-07 11:56:32 -04:00