[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-stable] [PATCH v3 1/2] i386: expose floppy-related objects in
From: |
Roman Kagan |
Subject: |
Re: [Qemu-stable] [PATCH v3 1/2] i386: expose floppy-related objects in SSDT |
Date: |
Tue, 22 Dec 2015 18:13:40 +0300 |
User-agent: |
Mutt/1.5.24 (2015-08-30) |
On Tue, Dec 22, 2015 at 05:07:16PM +0200, Michael S. Tsirkin wrote:
> On Fri, Dec 18, 2015 at 10:32:29PM +0300, Roman Kagan wrote:
> > On x86-based systems Linux determines the presence and the type of
> > floppy drives via a query of a CMOS field. So does SeaBIOS when
> > populating the return data for int 0x13 function 0x08.
> >
> > Windows doesn't; instead, it requests this information from BIOS via int
> > 0x13/0x08 or through ACPI objects _FDE (Floppy Drive Enumerate) and _FDI
> > (Floppy Drive Information). On UEFI systems only ACPI-based detection
> > is supported.
> >
> > QEMU used not to provide those objects in its ACPI tables; as a result
> > floppy drives were invisible to Windows on UEFI/OVMF.
> >
> > This patch implements those objects in SSDT, populating them via AML
> > API. For that, a couple of functions are extern-ified to facilitate
> > populating those objects in acpi-build.c.
> >
> > Signed-off-by: Roman Kagan <address@hidden>
> > Signed-off-by: Denis V. Lunev <address@hidden>
> > CC: Michael S. Tsirkin <address@hidden>
> > CC: Igor Mammedov <address@hidden>
> > CC: Paolo Bonzini <address@hidden>
> > CC: Richard Henderson <address@hidden>
> > CC: Eduardo Habkost <address@hidden>
> > CC: John Snow <address@hidden>
> > CC: Kevin Wolf <address@hidden>
> > --
>
> This must be --- otherwise git am does not strip the diff stat.
OOPS. I wonder how that happened... git format-patch certainly did the
right thing; I must have deleted one dash by accident when editing the
changelog. Want me to resend?
Roman.
- Re: [Qemu-stable] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, (continued)
- Re: [Qemu-stable] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Roman Kagan, 2015/12/23
- Re: [Qemu-stable] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Michael S. Tsirkin, 2015/12/23
- Re: [Qemu-stable] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Roman Kagan, 2015/12/23
- Re: [Qemu-stable] [Qemu-devel] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Roman Kagan, 2015/12/23
- Re: [Qemu-stable] [Qemu-devel] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Igor Mammedov, 2015/12/23
- Re: [Qemu-stable] [Qemu-devel] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Roman Kagan, 2015/12/23
- Re: [Qemu-stable] [Qemu-devel] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Michael S. Tsirkin, 2015/12/24
- Re: [Qemu-stable] [Qemu-devel] [PATCH v3 2/2] tests: update expected SSDT for floppy changes, Roman Kagan, 2015/12/25
[Qemu-stable] [PATCH v3 1/2] i386: expose floppy-related objects in SSDT, Roman Kagan, 2015/12/18
Re: [Qemu-stable] [PATCH v3 1/2] i386: expose floppy-related objects in SSDT, Igor Mammedov, 2015/12/22