Re: [PATCH v1 0/3] target/i386: Add the immediate form MSR access instruction support

2025-05-22 Thread Xin Li
On 4/15/2025 8:25 PM, Xin Li wrote: On 1/3/2025 12:48 AM, Xin Li (Intel) wrote: The immediate form of MSR access instructions are primarily motivated by performance, not code size: by having the MSR number in an immediate, it is available *much* earlier in the pipeline, which allows the hardware

Re: [PATCH v1 0/3] target/i386: Add the immediate form MSR access instruction support

2025-04-15 Thread Xin Li
On 1/3/2025 12:48 AM, Xin Li (Intel) wrote: The immediate form of MSR access instructions are primarily motivated by performance, not code size: by having the MSR number in an immediate, it is available *much* earlier in the pipeline, which allows the hardware much more leeway about how a particu

[PATCH v1 0/3] target/i386: Add the immediate form MSR access instruction support

2025-01-03 Thread Xin Li (Intel)
The immediate form of MSR access instructions are primarily motivated by performance, not code size: by having the MSR number in an immediate, it is available *much* earlier in the pipeline, which allows the hardware much more leeway about how a particular MSR is handled. This new CPU feature is a