- 165 W. Some new
instruction set extensions: WBNOINVD, CLWB, RDPID, RDPRU,
MCOMMIT. Each
instruction uses its own
CPUID bit.
Hardware mitigations against...
-
value of the MSR is
returned in EDX:EAX.
Usually 3 Zen 2
MCOMMIT Commit Stores To Memory.
MCOMMIT F3 0F 01 FA
Ensure that all
preceding stores in thread...
-
instruction 5 (reserved) 6 mbe
Memory Bandwidth Enforcement 7 (reserved) 8
mcommit MCOMMIT instruction 9
wbnoinvd WBNOINVD instruction 10 (reserved) 11 (reserved)...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
- FXSAVE/FXRSTOR) 15 TCE (Translation
Cache Extension) 16
Reserved 17
MCOMMIT (
MCOMMIT instruction enable) 18
INTWB (Interruptible WBINVD/WBNOINVD enable)...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
- PTE
Coalescing — — GMET, WBNOINVD, CLWB, QOS, PQE-BW, RDPID, RDPRU, and
MCOMMIT — — MPK, VAES — — SGX — — FPUs per core 1 0.5 1 1 0.5 1
Pipes per FPU 2...
