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From: Suzuki Kuruppassery Poulose <suzuki.poulose@arm.com>
To: Alexandru Elisei <alexandru.elisei@arm.com>,
	kvm@vger.kernel.org, will@kernel.org,
	julien.thierry.kdev@gmail.com
Cc: maz@kernel.org, julien.grall@arm.com, andre.przywara@arm.com
Subject: Re: [PATCH kvmtool 04/16] kvmtool: Add helper to sanitize arch specific KVM configuration
Date: Wed, 5 Feb 2020 18:16:59 +0000	[thread overview]
Message-ID: <916fbe5a-ae8c-412c-b2ae-9c93e9d755e7@arm.com> (raw)
In-Reply-To: <1569245722-23375-5-git-send-email-alexandru.elisei@arm.com>

On 23/09/2019 14:35, Alexandru Elisei wrote:
> kvmtool accepts generic and architecture specific parameters. When creating
> a virtual machine, only the generic parameters are checked against sane
> values. Add a function to sanitize the architecture specific configuration
> options and call it before the initialization routines.
> 
> This patch was inspired by Julien Grall's patch.
> 
> Signed-off-by: Julien Grall <julien.grall@arm.com>
> Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
> ---
>   arm/aarch64/include/kvm/kvm-arch.h |  2 +-
>   arm/include/arm-common/kvm-arch.h  |  4 ++++
>   arm/kvm.c                          | 11 +++++++++--
>   builtin-run.c                      |  2 ++
>   mips/include/kvm/kvm-arch.h        |  4 ++++
>   mips/kvm.c                         |  5 +++++
>   powerpc/include/kvm/kvm-arch.h     |  4 ++++
>   powerpc/kvm.c                      |  5 +++++
>   x86/include/kvm/kvm-arch.h         |  4 ++++
>   x86/kvm.c                          | 24 ++++++++++++------------
>   10 files changed, 50 insertions(+), 15 deletions(-)
> 
> diff --git a/arm/aarch64/include/kvm/kvm-arch.h b/arm/aarch64/include/kvm/kvm-arch.h
> index 9de623ac6cb9..1b3d0a5fb1b4 100644
> --- a/arm/aarch64/include/kvm/kvm-arch.h
> +++ b/arm/aarch64/include/kvm/kvm-arch.h
> @@ -5,7 +5,7 @@
>   				0x8000				:	\
>   				0x80000)
>   
> -#define ARM_MAX_MEMORY(kvm)	((kvm)->cfg.arch.aarch32_guest	?	\
> +#define ARM_MAX_MEMORY(cfg)	((cfg)->arch.aarch32_guest	?	\
>   				ARM_LOMAP_MAX_MEMORY		:	\
>   				ARM_HIMAP_MAX_MEMORY)
>   
> diff --git a/arm/include/arm-common/kvm-arch.h b/arm/include/arm-common/kvm-arch.h
> index b9d486d5eac2..965978d7cfb5 100644
> --- a/arm/include/arm-common/kvm-arch.h
> +++ b/arm/include/arm-common/kvm-arch.h
> @@ -74,4 +74,8 @@ struct kvm_arch {
>   	u64	dtb_guest_start;
>   };
>   
> +struct kvm_config;
> +
> +void kvm__arch_sanitize_cfg(struct kvm_config *cfg);

minor nit: We could have passed "struct kvm", which could

1) avoid the hunk above for ARM_MAX_MEMORY()
2) make better use of the other info available in KVM for
    anything that we could potentially do.

But hey, we don't change the kvmtool that much. So, feel free
to ignore this.

Either way:

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>

  parent reply	other threads:[~2020-02-05 18:17 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-23 13:35 [PATCH kvmtool 00/16] arm: Allow the user to define the memory layout Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 01/16] arm: Allow use of hugepage with 16K pagesize host Alexandru Elisei
2019-11-06 16:47   ` Andre Przywara
2019-11-06 17:29     ` Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 02/16] kvm__arch_init: Don't pass hugetlbfs_path and ram_size in parameter Alexandru Elisei
2019-11-06 16:47   ` Andre Przywara
2019-11-07 10:03     ` Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 03/16] virtio/scsi: Allow the use of multiple banks Alexandru Elisei
2019-11-06 16:48   ` Andre Przywara
2020-02-05 18:07   ` Suzuki Kuruppassery Poulose
2019-09-23 13:35 ` [PATCH kvmtool 04/16] kvmtool: Add helper to sanitize arch specific KVM configuration Alexandru Elisei
2019-11-06 16:48   ` Andre Przywara
2019-11-07 10:05     ` Alexandru Elisei
2020-02-05 18:16   ` Suzuki Kuruppassery Poulose [this message]
2019-09-23 13:35 ` [PATCH kvmtool 05/16] kvmtool: Use MB consistently Alexandru Elisei
2019-11-06 16:49   ` Andre Przywara
2020-02-05 18:17   ` Suzuki Kuruppassery Poulose
2019-09-23 13:35 ` [PATCH kvmtool 06/16] builtin-run.c: Always use ram_size in bytes Alexandru Elisei
2019-11-06 16:49   ` Andre Przywara
2019-11-07 10:08     ` Alexandru Elisei
2020-02-05 19:03   ` Suzuki Kuruppassery Poulose
2019-09-23 13:35 ` [PATCH kvmtool 07/16] arm: Remove redundant define ARM_PCI_CFG_SIZE Alexandru Elisei
2019-11-06 16:49   ` Andre Przywara
2020-02-06 11:49   ` Suzuki Kuruppassery Poulose
2019-09-23 13:35 ` [PATCH kvmtool 08/16] arm: Move anything related to RAM initialization in kvm__init_ram Alexandru Elisei
2019-11-07 13:46   ` Andre Przywara
2019-09-23 13:35 ` [PATCH kvmtool 09/16] arm: Allow the user to specify RAM base address Alexandru Elisei
2019-11-07 13:54   ` Andre Przywara
2020-02-06 12:20   ` Suzuki Kuruppassery Poulose
2019-09-23 13:35 ` [PATCH kvmtool 10/16] kvmtool: Allow standard size specifiers for memory Alexandru Elisei
2019-11-07 13:55   ` Andre Przywara
2019-09-23 13:35 ` [PATCH kvmtool 11/16] arm/pci: Remove unused ioports Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 12/16] Fold kvm__init_ram call in kvm__arch_init and rename it Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 13/16] arm: Allow any base address for RAM Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 14/16] arm: Move memory related code to memory.c Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 15/16] kvmtool: Make the size@addr option parser globally visible Alexandru Elisei
2019-09-23 13:35 ` [PATCH kvmtool 16/16] arm: Allow the user to define the MMIO regions Alexandru Elisei
2020-02-05 17:16 ` [PATCH kvmtool 00/16] arm: Allow the user to define the memory layout Will Deacon
2020-02-05 17:18   ` Alexandru Elisei
2020-02-06  9:20     ` Marc Zyngier

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