linux-kernel - Re: [PATCH 1/3] RISC-V: Enable KVM in RV64 and RV32 defconfigs as a module

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Date:   Thu, 28 Oct 2021 21:07:31 +0530
From:   Anup Patel <anup@...infault.org>
To:     Palmer Dabbelt <palmerdabbelt@...gle.com>
Cc:     Anup Patel <Anup.Patel@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Atish Patra <Atish.Patra@....com>,
        KVM General <kvm@...r.kernel.org>,
        kvm-riscv@...ts.infradead.org,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] RISC-V: Enable KVM in RV64 and RV32 defconfigs as a module

On Thu, Oct 28, 2021 at 3:42 AM Palmer Dabbelt <palmerdabbelt@...gle.com> wrote:
>
> On Tue, 26 Oct 2021 10:01:34 PDT (-0700), Anup Patel wrote:
> > Let's enable KVM RISC-V in RV64 and RV32 defconfigs as module
> > so that it always built along with the default kernel image.
>
> Turning on KVM in the defconfigs seems like the right way to go, but
> this has more diff than just that.  Not sure if that's all just
> savedefconfig stuff, I usually try and split out the non-functional
> changes from anything that makes a change.

Other diffs in the defconfigs are generated by "make savedefconfig". I
guess this is because most people don't use "make savedefconfig"
to generate updated defconfigs.

>
> If you checked then
>
> Acked-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
>
> assuming you want to keep these together.  LMK if you want me to take
> this on its own (I'll split it up if you do).

Thanks Palmer.

Regards,
Anup

>
> >
> > Signed-off-by: Anup Patel <anup.patel@....com>
> > ---
> >  arch/riscv/configs/defconfig      | 15 +++++++--------
> >  arch/riscv/configs/rv32_defconfig |  8 ++++----
> >  2 files changed, 11 insertions(+), 12 deletions(-)
> >
> > diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
> > index 4ebc80315f01..40506dfab5cf 100644
> > --- a/arch/riscv/configs/defconfig
> > +++ b/arch/riscv/configs/defconfig
> > @@ -2,6 +2,7 @@ CONFIG_SYSVIPC=y
> >  CONFIG_POSIX_MQUEUE=y
> >  CONFIG_NO_HZ_IDLE=y
> >  CONFIG_HIGH_RES_TIMERS=y
> > +CONFIG_BPF_SYSCALL=y
> >  CONFIG_IKCONFIG=y
> >  CONFIG_IKCONFIG_PROC=y
> >  CONFIG_CGROUPS=y
> > @@ -13,12 +14,14 @@ CONFIG_USER_NS=y
> >  CONFIG_CHECKPOINT_RESTORE=y
> >  CONFIG_BLK_DEV_INITRD=y
> >  CONFIG_EXPERT=y
> > -CONFIG_BPF_SYSCALL=y
> > +# CONFIG_SYSFS_SYSCALL is not set
> > +CONFIG_SOC_MICROCHIP_POLARFIRE=y
> >  CONFIG_SOC_SIFIVE=y
> >  CONFIG_SOC_VIRT=y
> > -CONFIG_SOC_MICROCHIP_POLARFIRE=y
> >  CONFIG_SMP=y
> >  CONFIG_HOTPLUG_CPU=y
> > +CONFIG_VIRTUALIZATION=y
> > +CONFIG_KVM=m
> >  CONFIG_JUMP_LABEL=y
> >  CONFIG_MODULES=y
> >  CONFIG_MODULE_UNLOAD=y
> > @@ -68,14 +71,12 @@ CONFIG_HW_RANDOM=y
> >  CONFIG_HW_RANDOM_VIRTIO=y
> >  CONFIG_SPI=y
> >  CONFIG_SPI_SIFIVE=y
> > +# CONFIG_PTP_1588_CLOCK is not set
> >  CONFIG_GPIOLIB=y
> >  CONFIG_GPIO_SIFIVE=y
> > -# CONFIG_PTP_1588_CLOCK is not set
> > -CONFIG_POWER_RESET=y
> >  CONFIG_DRM=y
> >  CONFIG_DRM_RADEON=y
> >  CONFIG_DRM_VIRTIO_GPU=y
> > -CONFIG_FRAMEBUFFER_CONSOLE=y
> >  CONFIG_USB=y
> >  CONFIG_USB_XHCI_HCD=y
> >  CONFIG_USB_XHCI_PLATFORM=y
> > @@ -85,10 +86,10 @@ CONFIG_USB_OHCI_HCD=y
> >  CONFIG_USB_OHCI_HCD_PLATFORM=y
> >  CONFIG_USB_STORAGE=y
> >  CONFIG_USB_UAS=y
> > +CONFIG_MMC=y
> >  CONFIG_MMC_SDHCI=y
> >  CONFIG_MMC_SDHCI_PLTFM=y
> >  CONFIG_MMC_SDHCI_CADENCE=y
> > -CONFIG_MMC=y
> >  CONFIG_MMC_SPI=y
> >  CONFIG_RTC_CLASS=y
> >  CONFIG_VIRTIO_PCI=y
> > @@ -139,5 +140,3 @@ CONFIG_RCU_EQS_DEBUG=y
> >  # CONFIG_FTRACE is not set
> >  # CONFIG_RUNTIME_TESTING_MENU is not set
> >  CONFIG_MEMTEST=y
> > -# CONFIG_SYSFS_SYSCALL is not set
> > -CONFIG_EFI=y
> > diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig
> > index 434ef5b64599..44022e048efd 100644
> > --- a/arch/riscv/configs/rv32_defconfig
> > +++ b/arch/riscv/configs/rv32_defconfig
> > @@ -2,6 +2,7 @@ CONFIG_SYSVIPC=y
> >  CONFIG_POSIX_MQUEUE=y
> >  CONFIG_NO_HZ_IDLE=y
> >  CONFIG_HIGH_RES_TIMERS=y
> > +CONFIG_BPF_SYSCALL=y
> >  CONFIG_IKCONFIG=y
> >  CONFIG_IKCONFIG_PROC=y
> >  CONFIG_CGROUPS=y
> > @@ -13,12 +14,14 @@ CONFIG_USER_NS=y
> >  CONFIG_CHECKPOINT_RESTORE=y
> >  CONFIG_BLK_DEV_INITRD=y
> >  CONFIG_EXPERT=y
> > -CONFIG_BPF_SYSCALL=y
> > +# CONFIG_SYSFS_SYSCALL is not set
> >  CONFIG_SOC_SIFIVE=y
> >  CONFIG_SOC_VIRT=y
> >  CONFIG_ARCH_RV32I=y
> >  CONFIG_SMP=y
> >  CONFIG_HOTPLUG_CPU=y
> > +CONFIG_VIRTUALIZATION=y
> > +CONFIG_KVM=m
> >  CONFIG_JUMP_LABEL=y
> >  CONFIG_MODULES=y
> >  CONFIG_MODULE_UNLOAD=y
> > @@ -67,11 +70,9 @@ CONFIG_HW_RANDOM_VIRTIO=y
> >  CONFIG_SPI=y
> >  CONFIG_SPI_SIFIVE=y
> >  # CONFIG_PTP_1588_CLOCK is not set
> > -CONFIG_POWER_RESET=y
> >  CONFIG_DRM=y
> >  CONFIG_DRM_RADEON=y
> >  CONFIG_DRM_VIRTIO_GPU=y
> > -CONFIG_FRAMEBUFFER_CONSOLE=y
> >  CONFIG_USB=y
> >  CONFIG_USB_XHCI_HCD=y
> >  CONFIG_USB_XHCI_PLATFORM=y
> > @@ -130,4 +131,3 @@ CONFIG_RCU_EQS_DEBUG=y
> >  # CONFIG_FTRACE is not set
> >  # CONFIG_RUNTIME_TESTING_MENU is not set
> >  CONFIG_MEMTEST=y
> > -# CONFIG_SYSFS_SYSCALL is not set