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Groups > linux.kernel > #1338913
| From | "Michael S. Tsirkin" <mst@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device |
| Date | 2016-02-21 19:10 +0100 |
| Message-ID | <r4GCe-1rJ-17@gated-at.bofh.it> (permalink) |
| References | <qVVK9-4Gz-15@gated-at.bofh.it> <qVVK9-4Gz-13@gated-at.bofh.it> <r4FZw-Tg-13@gated-at.bofh.it> <r4FZw-Tg-19@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sun, Feb 21, 2016 at 08:06:17AM -0500, Gabriel L. Somlo wrote: > > So for all arches which support ACPI, I think this driver > > should just rely on ACPI. > > There was a discussion about that a few versions ago, and IIRC the > conclusion was not to expect the firmware to contend for fw_cfg access > after the guest kernel boots: > > https://lkml.org/lkml/2015/10/5/283 Interesting. Igor wanted to do this again recently ... I'll think it over and get back to you/list on this. > (I even had a prototype version doing what you suggested, but per the above > reference decided to drop it -- which IMHO is for the better, since otherwise > I'd have had to ifdef between ACPI and non-ACPI versions of the driver -- > see https://lkml.org/lkml/2015/11/4/534 ) I'm not sure I get it - won't you only ifdef the accessor function? -- MST
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Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-21 18:30 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Gabriel L. Somlo" <somlo@cmu.edu> - 2016-02-21 18:30 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Gabriel L. Somlo" <somlo@cmu.edu> - 2016-02-21 18:30 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-21 19:00 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-21 19:10 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-22 21:20 +0100
Re: [PATCH v8 1/4] firmware: introduce sysfs driver for QEMU's fw_cfg device "Gabriel L. Somlo" <somlo@cmu.edu> - 2016-02-22 21:30 +0100
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