Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <7bf4b9a6-d75b-8e96-14cf-79df2fae8694@intel.com>
Date:   Mon, 12 Jun 2023 09:26:58 -0700
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.11.0
Subject: Re: [PATCH RFC v9 11/51] x86/traps: Define RMP violation #PF error
 code
Content-Language: en-US
To:     Michael Roth <michael.roth@amd.com>, kvm@vger.kernel.org
Cc:     linux-coco@lists.linux.dev, linux-mm@kvack.org,
        linux-crypto@vger.kernel.org, x86@kernel.org,
        linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com,
        jroedel@suse.de, thomas.lendacky@amd.com, hpa@zytor.com,
        ardb@kernel.org, pbonzini@redhat.com, seanjc@google.com,
        vkuznets@redhat.com, jmattson@google.com, luto@kernel.org,
        dave.hansen@linux.intel.com, slp@redhat.com, pgonda@google.com,
        peterz@infradead.org, srinivas.pandruvada@linux.intel.com,
        rientjes@google.com, dovmurik@linux.ibm.com, tobin@ibm.com,
        bp@alien8.de, vbabka@suse.cz, kirill@shutemov.name,
        ak@linux.intel.com, tony.luck@intel.com, marcorr@google.com,
        sathyanarayanan.kuppuswamy@linux.intel.com, alpergun@google.com,
        dgilbert@redhat.com, jarkko@kernel.org, ashish.kalra@amd.com,
        nikunj.dadhania@amd.com, liam.merwick@oracle.com,
        zhi.a.wang@intel.com, Brijesh Singh <brijesh.singh@amd.com>
References: <20230612042559.375660-1-michael.roth@amd.com>
 <20230612042559.375660-12-michael.roth@amd.com>
From:   Dave Hansen <dave.hansen@intel.com>
In-Reply-To: <20230612042559.375660-12-michael.roth@amd.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 6/11/23 21:25, Michael Roth wrote:
> From: Brijesh Singh <brijesh.singh@amd.com>
> 
> Bit 31 in the page fault-error bit will be set when processor encounters
> an RMP violation.
> 
> While at it, use the BIT_ULL() macro.
...
>  enum x86_pf_error_code {
> -	X86_PF_PROT	=		1 << 0,
> -	X86_PF_WRITE	=		1 << 1,
> -	X86_PF_USER	=		1 << 2,
> -	X86_PF_RSVD	=		1 << 3,
> -	X86_PF_INSTR	=		1 << 4,
> -	X86_PF_PK	=		1 << 5,
> -	X86_PF_SGX	=		1 << 15,
> +	X86_PF_PROT	=		BIT(0),
> +	X86_PF_WRITE	=		BIT(1),
> +	X86_PF_USER	=		BIT(2),
> +	X86_PF_RSVD	=		BIT(3),
> +	X86_PF_INSTR	=		BIT(4),
> +	X86_PF_PK	=		BIT(5),
> +	X86_PF_SGX	=		BIT(15),
> +	X86_PF_RMP	=		BIT(31),
>  };

It would be nice if the changelog "BIT_ULL()" matched the code "BIT()".  :)

With that fixed,

Acked-by: Dave Hansen <dave.hansen@linux.intel.com>