Re: [PATCH] i386/cpu: Expand MAX_FIXED_COUNTERS from 3 to 4 to for Icelake

2020-03-26 Thread Like Xu
On 2020/3/27 2:48, Paolo Bonzini wrote: On 17/03/20 06:54, Like Xu wrote: In the Intel SDM, "Table 18-2. Association of Fixed-Function Performance Counters with Architectural Performance Events", we may have a new fixed counter 'TOPDOWN.SLOTS' (since Icelake), which counts the number of

Re: [PATCH] i386/cpu: Expand MAX_FIXED_COUNTERS from 3 to 4 to for Icelake

2020-03-26 Thread Paolo Bonzini
On 17/03/20 06:54, Like Xu wrote: > In the Intel SDM, "Table 18-2. Association of Fixed-Function > Performance Counters with Architectural Performance Events", > we may have a new fixed counter 'TOPDOWN.SLOTS' (since Icelake), > which counts the number of available slots for an unhalted > logical

Re: [PATCH] i386/cpu: Expand MAX_FIXED_COUNTERS from 3 to 4 to for Icelake

2020-03-26 Thread Like Xu
Anyone to help review this change? Thanks, Like Xu On 2020/3/17 13:54, Like Xu wrote: In the Intel SDM, "Table 18-2. Association of Fixed-Function Performance Counters with Architectural Performance Events", we may have a new fixed counter 'TOPDOWN.SLOTS' (since Icelake), which counts the

[PATCH] i386/cpu: Expand MAX_FIXED_COUNTERS from 3 to 4 to for Icelake

2020-03-16 Thread Like Xu
In the Intel SDM, "Table 18-2. Association of Fixed-Function Performance Counters with Architectural Performance Events", we may have a new fixed counter 'TOPDOWN.SLOTS' (since Icelake), which counts the number of available slots for an unhalted logical processor. Check commit 6017608936 in the