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

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Message-ID: <mhng-1044c135-bede-498b-b244-9f9c5f5ea89b@palmerdabbelt-glaptop>
Date:   Wed, 27 Oct 2021 15:12:30 -0700 (PDT)
From:   Palmer Dabbelt <palmerdabbelt@...gle.com>
To:     Anup Patel <Anup.Patel@....com>
CC:     Paul Walmsley <paul.walmsley@...ive.com>, aou@...s.berkeley.edu,
        pbonzini@...hat.com, Atish Patra <Atish.Patra@....com>,
        anup@...infault.org, kvm@...r.kernel.org,
        kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Anup Patel <Anup.Patel@....com>
Subject:     Re: [PATCH 1/3] RISC-V: Enable KVM in RV64 and RV32 defconfigs as a module

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.

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).

>
> 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