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| author | Pawan Gupta <pawan.kumar.gupta@linux.intel.com> | 2024-03-13 07:53:23 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-04-23 17:35:25 +0200 |
| commit | 41bdd9812863c150284a9339a048ed88c40f4df7 (patch) | |
| tree | 34e2dea40ed21d067339d84213d832452091000f /target/i386/ops_sse.h | |
| parent | 6e82d3b6220777667968a04c87e1667f164ebe88 (diff) | |
| download | qemu-41bdd9812863c150284a9339a048ed88c40f4df7.zip qemu-41bdd9812863c150284a9339a048ed88c40f4df7.tar.gz qemu-41bdd9812863c150284a9339a048ed88c40f4df7.tar.bz2 | |
target/i386: Export RFDS bit to guests
Register File Data Sampling (RFDS) is a CPU side-channel vulnerability
that may expose stale register value. CPUs that set RFDS_NO bit in MSR
IA32_ARCH_CAPABILITIES indicate that they are not vulnerable to RFDS.
Similarly, RFDS_CLEAR indicates that CPU is affected by RFDS, and has
the microcode to help mitigate RFDS.
Make RFDS_CLEAR and RFDS_NO bits available to guests.
Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-ID: <9a38877857392b5c2deae7e7db1b170d15510314.1710341348.git.pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target/i386/ops_sse.h')
0 files changed, 0 insertions, 0 deletions