Handle E-core and P-core

[rountree]

"MSRs at the following addresses are not supported in the 12th generation Intel Core processor E-core: 3F7H. MSRs at the following addresses are not supported in the 12th generation Intel Core processor E-core or P-core: 652H, 653H, 655H, 656H, DB0H, DB1H, DB2H, and D90H." (p. 2-331 v4)

"MSRs at the following addresses are not supported in the 12th and 13th generation Intel Core processor E-core: 30CH, 329H, 541H, and 657H. The MSR at address 657H is not supported in the 12th and 13th generation Intel Core processor P-core." (p 2-369)

"The MSRs listed in Table 2-47 are unique to the 12th and 13th generation Intel Core processor P-core. These MSRs are not supported on the processor E-core." (p 2-373)

"The MSRs listed in Table 2-48 are unique to the 12th and 13th generation Intel Core processor E-core. These MSRs are not supported on the processor P-core." (p 2-375)

"The MSRs listed in Table 2-54 are unique to the Intel Core Ultra 7 processor P-core. These MSRs are not supported on the processor E-core." (p 2-430)

"The MSRs listed in Table 2-48 are unique to the Intel Core Ultra 7 processor E-core. These MSRs are not supported on the processor P-core." (p 2-431)

I suspect we'll eventually need per-core-type msr-safe allowlists.