Re: [PATCH 01/12] vt82c686: Add APM and ACPI dependencies for VT82C686

[chen huacai <zltjiangshi@gmail.com>]

OK, just do it as Philippe suggested.

Huacai

On Mon, Dec 28, 2020 at 9:42 AM BALATON Zoltan via
<qemu-devel@nongnu.org> wrote:
>
> Hello,
>
> On Mon, 28 Dec 2020, Huacai Chen wrote:
> > Hi, BALATON
> >
> > On Sun, Dec 27, 2020 at 9:21 AM BALATON Zoltan <balaton@eik.bme.hu> wrote:
> >>
> >> Compiling vt82c686.c fails without APM and ACPI_PM functions. Add
> >> dependency on these in Kconfig to fix this.
> >>
> >> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
> >> ---
> >>  hw/isa/Kconfig | 2 ++
> >>  1 file changed, 2 insertions(+)
> >>
> >> diff --git a/hw/isa/Kconfig b/hw/isa/Kconfig
> >> index c7f07854f7..2ca2593ee6 100644
> >> --- a/hw/isa/Kconfig
> >> +++ b/hw/isa/Kconfig
> >> @@ -47,6 +47,8 @@ config VT82C686
> >>      select ACPI_SMBUS
> >>      select SERIAL_ISA
> >>      select FDC
> >> +    select APM
> >> +    select ACPI_X86
> > I feel a bit uncomfortable with ACPI_X86 in the MIPS code, can we just
> > select ACPI? And if that is not enough, can we select more options?
>
> This patch is not new, I've tried submitting it before but got rejeceted
> for similar reason:
>
> https://lists.nongnu.org/archive/html/qemu-devel/2019-03/msg03428.html
>
> Then Philippe said he had a better alternative but it's still not fixed in
> master so this patch is needed and you likely already depend on X86
> without knowing as something is pulling these in for MIPS. This can be
> reproduced e,g, by adding this device to PPC as:
>
> diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
> index d235a096c6..90b53d40c2 100644
> --- a/hw/ppc/Kconfig
> +++ b/hw/ppc/Kconfig
> @@ -64,6 +64,7 @@ config SAM460EX
>       select SMBUS_EEPROM
>       select USB_EHCI_SYSBUS
>       select USB_OHCI
> +    select VT82C686
>
>   config PREP
>       bool
>
> then compiling --target-list=ppc-softmmu
> Even after:
>
> diff --git a/hw/isa/Kconfig b/hw/isa/Kconfig
> index c7f07854f7..75986671b9 100644
> --- a/hw/isa/Kconfig
> +++ b/hw/isa/Kconfig
> @@ -47,6 +47,8 @@ config VT82C686
>       select ACPI_SMBUS
>       select SERIAL_ISA
>       select FDC
> +    select APM
> +    select ACPI
>
>   config SMC37C669
>       bool
>
> I get:
>
> [] Linking target qemu-system-ppc
> FAILED: qemu-system-ppc
> ld: libcommon.fa.p/hw_isa_vt82c686.c.o: in function `vt82c686b_pm_realize':
> hw/isa/vt82c686.c:378: undefined reference to `acpi_pm_tmr_init'
> ld: hw/isa/vt82c686.c:379: undefined reference to `acpi_pm1_evt_init'
> ld: libcommon.fa.p/hw_isa_vt82c686.c.o: in function `pm_update_sci':
> hw/isa/vt82c686.c:192: undefined reference to `acpi_pm1_evt_get_sts'
> ld: libcommon.fa.p/hw_isa_vt82c686.c.o: in function `vt82c686b_pm_realize':
> hw/isa/vt82c686.c:380: undefined reference to `acpi_pm1_cnt_init'
> ld: libcommon.fa.p/hw_isa_vt82c686.c.o: in function `pm_update_sci':
> hw/isa/vt82c686.c:200: undefined reference to `acpi_pm_tmr_update'
> collect2: error: ld returned 1 exit status
>
> So my patch just makes existing dependencies explicit and allows this to
> build but I'm OK with any other fix you propose that fixes the above case
> as that's how I'll try to use this in the future. (I did look at this when
> first found it and concluded that I could not make a better fix than
> depending on ACPI_X86 here. I forgot the details but it was way more work
> than I want to take up for this so please propose a better fix if you
> can't accept this patch.)
>
> Maybe Philippe remembers some more.
>
> Regards,
> BALATON Zoltan
>


-- 
Huacai Chen