> On Apr 11, 2021, at 9:43 AM, Andi Kleen <a...@linux.intel.com> wrote: > > >> >> I have actually seen real user programs poke MSR_SYSCALL_MASK. > > Hmm, what was the use case? > > Working around a kernel bug. The workaround only worked on AMD systems. The correct solution was to fix the kernel bug, not poke MSRs.
- Re: [RFC 1/2] x86/tsc: add a timer to make sure tsc_adjust... Thomas Gleixner
- Re: [RFC 1/2] x86/tsc: add a timer to make sure tsc_a... Borislav Petkov
- [PATCH] x86/msr: Block writes to certain MSRs unc... Borislav Petkov
- Re: [PATCH] x86/msr: Block writes to certain ... Andy Lutomirski
- [PATCH -v1.1] x86/msr: Block writes to ce... Borislav Petkov
- Re: [PATCH] x86/msr: Block writes to certain ... Andi Kleen
- Re: [PATCH] x86/msr: Block writes to cert... Borislav Petkov
- Re: [PATCH] x86/msr: Block writes to cert... Andy Lutomirski
- Re: [PATCH] x86/msr: Block writes to... Andi Kleen
- Re: [PATCH] x86/msr: Block write... Andy Lutomirski
- Re: [PATCH] x86/msr: Block w... Borislav Petkov
- Re: [PATCH] x86/msr: Block w... Andy Lutomirski
- Re: [PATCH] x86/msr: Block w... Borislav Petkov
- Re: [RFC 1/2] x86/tsc: add a timer to make sure t... Feng Tang
- Re: [RFC 1/2] x86/tsc: add a timer to make su... Borislav Petkov
- Re: [RFC 1/2] x86/tsc: add a timer to make sure t... Thomas Gleixner
- Re: [RFC 1/2] x86/tsc: add a timer to make sure tsc_a... Feng Tang
- Re: [RFC 1/2] x86/tsc: add a timer to make sure t... Thomas Gleixner