Displaying 13 results from an estimated 13 matches for "lapic_".
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lapic
2019 Jul 15
2
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
...oper wrote:
> > There is a lot of infrastructure for functionality which is used
> > exclusively in __{save,restore}_processor_state() on the suspend/resume
> > path.
> >
> > cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
> > independently by lapic_{suspend,resume}().
>
> Aren't those called only with CONFIG_PM set?
>
Unless I'm missing something, we only build any of the restore code
(including the write_cr8() call) if CONFIG_PM_SLEEP is set, and that
selects CONFIG_PM, so we should be fine, I think.
2019 Jul 15
2
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
...oper wrote:
> > There is a lot of infrastructure for functionality which is used
> > exclusively in __{save,restore}_processor_state() on the suspend/resume
> > path.
> >
> > cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
> > independently by lapic_{suspend,resume}().
>
> Aren't those called only with CONFIG_PM set?
>
Unless I'm missing something, we only build any of the restore code
(including the write_cr8() call) if CONFIG_PM_SLEEP is set, and that
selects CONFIG_PM, so we should be fine, I think.
2019 Jul 15
3
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
...citrix.com> wrote:
>>
>> There is a lot of infrastructure for functionality which is used
>> exclusively in __{save,restore}_processor_state() on the suspend/resume
>> path.
>>
>> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
>> lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
>> rest of the Local APIC state isn't a clever thing to be doing.
>>
>> Delete the suspend/resume cr8 handling, which shrinks the size of struct
>> saved_context, and allows for the removal of both PVOPS....
2019 Jul 15
3
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
...citrix.com> wrote:
>>
>> There is a lot of infrastructure for functionality which is used
>> exclusively in __{save,restore}_processor_state() on the suspend/resume
>> path.
>>
>> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
>> lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
>> rest of the Local APIC state isn't a clever thing to be doing.
>>
>> Delete the suspend/resume cr8 handling, which shrinks the size of struct
>> saved_context, and allows for the removal of both PVOPS....
2019 Jul 15
3
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
There is a lot of infrastructure for functionality which is used
exclusively in __{save,restore}_processor_state() on the suspend/resume
path.
cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
rest of the Local APIC state isn't a clever thing to be doing.
Delete the suspend/resume cr8 handling, which shrinks the size of struct
saved_context, and allows for the removal of both PVOPS.
Signed-off-by: Andrew Cooper <a...
2019 Jul 15
3
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
There is a lot of infrastructure for functionality which is used
exclusively in __{save,restore}_processor_state() on the suspend/resume
path.
cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
rest of the Local APIC state isn't a clever thing to be doing.
Delete the suspend/resume cr8 handling, which shrinks the size of struct
saved_context, and allows for the removal of both PVOPS.
Signed-off-by: Andrew Cooper <a...
2019 Jul 15
2
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
There is a lot of infrastructure for functionality which is used
exclusively in __{save,restore}_processor_state() on the suspend/resume
path.
cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
independently by lapic_{suspend,resume}().
Delete the saving and restoration of cr8, which allows for the removal
of both PVOPS.
Signed-off-by: Andrew Cooper <andrew.cooper3 at citrix.com>
---
CC: x86 at kernel.org
CC: virtualization at lists.linux-foundation.org
CC: Borislav Petkov <bp at alien8.de>
CC: Pet...
2019 Jul 15
2
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
There is a lot of infrastructure for functionality which is used
exclusively in __{save,restore}_processor_state() on the suspend/resume
path.
cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
independently by lapic_{suspend,resume}().
Delete the saving and restoration of cr8, which allows for the removal
of both PVOPS.
Signed-off-by: Andrew Cooper <andrew.cooper3 at citrix.com>
---
CC: x86 at kernel.org
CC: virtualization at lists.linux-foundation.org
CC: Borislav Petkov <bp at alien8.de>
CC: Pet...
2019 Jul 15
0
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
On 15.07.19 15:00, Andrew Cooper wrote:
> There is a lot of infrastructure for functionality which is used
> exclusively in __{save,restore}_processor_state() on the suspend/resume
> path.
>
> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
> independently by lapic_{suspend,resume}().
Aren't those called only with CONFIG_PM set?
Juergen
2019 Jul 15
0
[PATCH] x86/paravirt: Drop {read,write}_cr8() hooks
...t;> There is a lot of infrastructure for functionality which is used
>>> exclusively in __{save,restore}_processor_state() on the suspend/resume
>>> path.
>>>
>>> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored
>>> independently by lapic_{suspend,resume}().
>>
>> Aren't those called only with CONFIG_PM set?
>>
>
>
> Unless I'm missing something, we only build any of the restore code
> (including the write_cr8() call) if CONFIG_PM_SLEEP is set, and that
> selects CONFIG_PM, so we should be f...
2019 Jul 15
0
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
...oper <andrew.cooper3 at citrix.com> wrote:
>
> There is a lot of infrastructure for functionality which is used
> exclusively in __{save,restore}_processor_state() on the suspend/resume
> path.
>
> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
> lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
> rest of the Local APIC state isn't a clever thing to be doing.
>
> Delete the suspend/resume cr8 handling, which shrinks the size of struct
> saved_context, and allows for the removal of both PVOPS.
I think removi...
2019 Jul 16
0
[PATCH v2] x86/paravirt: Drop {read,write}_cr8() hooks
...;
> >> There is a lot of infrastructure for functionality which is used
> >> exclusively in __{save,restore}_processor_state() on the suspend/resume
> >> path.
> >>
> >> cr8 is an alias of APIC_TASKPRI, and APIC_TASKPRI is saved/restored by
> >> lapic_{suspend,resume}(). Saving and restoring cr8 independently of the
> >> rest of the Local APIC state isn't a clever thing to be doing.
> >>
> >> Delete the suspend/resume cr8 handling, which shrinks the size of struct
> >> saved_context, and allows for the rem...
2004 Oct 21
3
Problem booting Dom0
...v001 IBM SERONYXP 0x00001000 IBM 0x45444f43) @ 0x3ffefe80
(XEN) ACPI: ASF! (v016 IBM SERONYXP 0x00000001 IBM 0x45444f43) @ 0x3ffefdc0
(XEN) ACPI: DSDT (v001 IBM SERTURQU 0x00001000 MSFT 0x0100000b) @ 0x00000000
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
(XEN) Processor #0 Pentium 4(tm) XEON(tm) APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_
(XEN) Processor #1 Pentium 4(tm) XEON(tm) APIC version 20
(XEN) ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
(XEN) Usi...