Re: [patch V4 part 4 08/24] x86/entry: Provide IDTENTRY_IST

2020-05-14 Thread Thomas Gleixner
Andy Lutomirski writes: > On Tue, May 5, 2020 at 7:16 AM Thomas Gleixner wrote: >> >> Same as IDTENTRY but for exceptions which run on Interrupt STacks (IST) on >> 64bit. For 32bit this maps to IDTENTRY. >> >> There are 3 variants which will be used: >> IDTENTRY_MCE >> IDTENTRY_DB >>

Re: [patch V4 part 4 08/24] x86/entry: Provide IDTENTRY_IST

2020-05-14 Thread Andy Lutomirski
On Tue, May 5, 2020 at 7:16 AM Thomas Gleixner wrote: > > Same as IDTENTRY but for exceptions which run on Interrupt STacks (IST) on > 64bit. For 32bit this maps to IDTENTRY. > > There are 3 variants which will be used: > IDTENTRY_MCE > IDTENTRY_DB > IDTENTRY_NMI > > These map

[patch V4 part 4 08/24] x86/entry: Provide IDTENTRY_IST

2020-05-05 Thread Thomas Gleixner
Same as IDTENTRY but for exceptions which run on Interrupt STacks (IST) on 64bit. For 32bit this maps to IDTENTRY. There are 3 variants which will be used: IDTENTRY_MCE IDTENTRY_DB IDTENTRY_NMI These map to IDTENTRY_IST, but only the MCE and DB variants are emitting ASM code as