Displaying 9 results from an estimated 9 matches for "reenligntenment".
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reenlightenment
2018 Oct 03
2
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...Oct 3, 2018, at 2:22 AM, Vitaly Kuznetsov <vkuznets at redhat.com> wrote:
>>
>> Andy Lutomirski <luto at kernel.org> writes:
>>
>>> Hi Vitaly, Paolo, Radim, etc.,
>>>
>> The notification you're talking about exists, it is called
>> Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
>> reenlightenment"). When TSC page changes (and this only happens when L1
>> is migrated to a different host with a different TSC frequency and TSC
>> scaling is not supported by the CPU) we receive an interrupt in L1 (at
>...
2018 Oct 03
2
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...Oct 3, 2018, at 2:22 AM, Vitaly Kuznetsov <vkuznets at redhat.com> wrote:
>>
>> Andy Lutomirski <luto at kernel.org> writes:
>>
>>> Hi Vitaly, Paolo, Radim, etc.,
>>>
>> The notification you're talking about exists, it is called
>> Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
>> reenlightenment"). When TSC page changes (and this only happens when L1
>> is migrated to a different host with a different TSC frequency and TSC
>> scaling is not supported by the CPU) we receive an interrupt in L1 (at
>...
2018 Oct 03
4
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...lly, a compliment to TSC:
two numbers provided by L0: offset and scale and KVM was tought to treat
this clocksource as a good one (see b0c39dc68e3b "x86/kvm: Pass stable
clocksource to guests when running nested on Hyper-V").
The notification you're talking about exists, it is called
Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
reenlightenment"). When TSC page changes (and this only happens when L1
is migrated to a different host with a different TSC frequency and TSC
scaling is not supported by the CPU) we receive an interrupt in L1 (at
this moment all TSC accesses ar...
2018 Oct 03
4
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...lly, a compliment to TSC:
two numbers provided by L0: offset and scale and KVM was tought to treat
this clocksource as a good one (see b0c39dc68e3b "x86/kvm: Pass stable
clocksource to guests when running nested on Hyper-V").
The notification you're talking about exists, it is called
Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
reenlightenment"). When TSC page changes (and this only happens when L1
is migrated to a different host with a different TSC frequency and TSC
scaling is not supported by the CPU) we receive an interrupt in L1 (at
this moment all TSC accesses ar...
2018 Oct 03
0
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...taly Kuznetsov <vkuznets at redhat.com> wrote:
>>>
>>> Andy Lutomirski <luto at kernel.org> writes:
>>>
>>>> Hi Vitaly, Paolo, Radim, etc.,
>>>>
>>> The notification you're talking about exists, it is called
>>> Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
>>> reenlightenment"). When TSC page changes (and this only happens when L1
>>> is migrated to a different host with a different TSC frequency and TSC
>>> scaling is not supported by the CPU) we receive an interrupt in...
2018 Oct 03
0
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...two numbers provided by L0: offset and scale and KVM was tought to treat
> this clocksource as a good one (see b0c39dc68e3b "x86/kvm: Pass stable
> clocksource to guests when running nested on Hyper-V").
>
> The notification you're talking about exists, it is called
> Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
> reenlightenment"). When TSC page changes (and this only happens when L1
> is migrated to a different host with a different TSC frequency and TSC
> scaling is not supported by the CPU) we receive an interrupt in L1 (at
> this moment...
2018 Oct 03
0
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
...two numbers provided by L0: offset and scale and KVM was tought to treat
> this clocksource as a good one (see b0c39dc68e3b "x86/kvm: Pass stable
> clocksource to guests when running nested on Hyper-V").
>
> The notification you're talking about exists, it is called
> Reenligntenment, see 0092e4346f49 "x86/kvm: Support Hyper-V
> reenlightenment"). When TSC page changes (and this only happens when L1
> is migrated to a different host with a different TSC frequency and TSC
> scaling is not supported by the CPU) we receive an interrupt in L1 (at
> this moment...
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime()
implementation, which extended the clockid switch case and added yet
another slightly different copy of the same code.
Especially the extended switch case is problematic as the compiler tends to
generate a jump table which then requires to use retpolines. If jump tables
are disabled it adds yet another conditional to the existing
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime()
implementation, which extended the clockid switch case and added yet
another slightly different copy of the same code.
Especially the extended switch case is problematic as the compiler tends to
generate a jump table which then requires to use retpolines. If jump tables
are disabled it adds yet another conditional to the existing