Re: linux-next: manual merge of the kvm-arm tree with the arm64 tree

From: Catalin Marinas <catalin.marinas@arm.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christoffer Dall <cdall@cs.columbia.edu>,
	Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	Joey Gouly <joey.gouly@arm.com>,
	Kristina Martsenko <kristina.martsenko@arm.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux Next Mailing List <linux-next@vger.kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>
Subject: Re: linux-next: manual merge of the kvm-arm tree with the arm64 tree
Date: Thu, 15 Jun 2023 08:14:11 +0100	[thread overview]
Message-ID: <ZIq6Q/TyZZZrJP2e@arm.com> (raw)
In-Reply-To: <20230615122201.75e36abd@canb.auug.org.au>

On Thu, Jun 15, 2023 at 12:22:01PM +1000, Stephen Rothwell wrote:
> diff --cc arch/arm64/kernel/cpufeature.c
> index 6ea7f23b1287,f6e3598760f1..000000000000
> --- a/arch/arm64/kernel/cpufeature.c
> +++ b/arch/arm64/kernel/cpufeature.c
> @@@ -2662,27 -2656,23 +2677,44 @@@ static const struct arm64_cpu_capabilit
>   		.cpu_enable = cpu_enable_dit,
>   		ARM64_CPUID_FIELDS(ID_AA64PFR0_EL1, DIT, IMP)
>   	},
>  +	{
>  +		.desc = "Memory Copy and Memory Set instructions",
>  +		.capability = ARM64_HAS_MOPS,
>  +		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
>  +		.matches = has_cpuid_feature,
>  +		.cpu_enable = cpu_enable_mops,
>  +		ARM64_CPUID_FIELDS(ID_AA64ISAR2_EL1, MOPS, IMP)
>  +	},
>  +	{
>  +		.capability = ARM64_HAS_TCR2,
>  +		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
>  +		.matches = has_cpuid_feature,
>  +		ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, TCRX, IMP)
>  +	},
>  +	{
>  +		.desc = "Stage-1 Permission Indirection Extension (S1PIE)",
>  +		.capability = ARM64_HAS_S1PIE,
>  +		.type = ARM64_CPUCAP_BOOT_CPU_FEATURE,
>  +		.matches = has_cpuid_feature,
>  +		ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, S1PIE, IMP)
>  +	},
> + 	{
> + 		.desc = "Enhanced Virtualization Traps",
> + 		.capability = ARM64_HAS_EVT,
> + 		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
> + 		.sys_reg = SYS_ID_AA64MMFR2_EL1,
> + 		.sign = FTR_UNSIGNED,
> + 		.field_pos = ID_AA64MMFR2_EL1_EVT_SHIFT,
> + 		.field_width = 4,
> + 		.min_field_value = ID_AA64MMFR2_EL1_EVT_IMP,
> + 		.matches = has_cpuid_feature,
> + 	},
> + 	{
> + 		.desc = "VHE for hypervisor only",
> + 		.capability = ARM64_KVM_HVHE,
> + 		.type = ARM64_CPUCAP_SYSTEM_FEATURE,
> + 		.matches = hvhe_possible,
> + 	},
>   	{},
>   };

This looks fine. Thanks Stephen.

-- 
Catalin