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Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devic
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From: |
Julia Suvorova |
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Subject: |
Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses |
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Date: |
Mon, 20 Apr 2020 20:35:04 +0200 |
On Mon, Apr 20, 2020 at 5:38 PM Ani Sinha <address@hidden> wrote:
>
>
>
> > On Apr 20, 2020, at 8:34 PM, Ani Sinha <address@hidden> wrote:
> >
> >
> >
> >> On Apr 18, 2020, at 6:18 PM, Marcel Apfelbaum <address@hidden> wrote:
> >>
> >> A PCIe Root Port or a PCI slot can or cannot support hot-plugging.
> >> Anything in the middle can't be done at PCIe/PCI level (as far as I know).
> >
> > Is it possible to dynamically set PCI_EXP_SLTCAP_HPC for a slot at runtime?
>
> What I mean is, when a slot capability is set an initialization, is it set in
> stone or can the capabilities be revoked post initialization? I can ’t find
> anything related to this in PCIE spec.
This bit is hardware initialized. This means that once initialized,
it's fixed and can't be changed. It could be re-initialized after
reset though.
Best regards, Julia Suvorova.
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, (continued)
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Michael S. Tsirkin, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Michael S. Tsirkin, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Laine Stump, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/17
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Marcel Apfelbaum, 2020/04/18
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/19
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses,
Julia Suvorova <=
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Daniel P . Berrangé, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Philippe Mathieu-Daudé, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Michael S. Tsirkin, 2020/04/20
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/21
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Daniel P . Berrangé, 2020/04/21
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/22
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/24
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Eduardo Habkost, 2020/04/24
- Re: [PATCH] Add a new PIIX option to control PCI hot unplugging of devices on non-root buses, Ani Sinha, 2020/04/27