Re: [Part2 PATCH v7 23/38] KVM: SVM: Reserve ASID range for SEV guest

From: Brijesh Singh <brijesh.singh@amd.com>
To: Borislav Petkov <bp@alien8.de>
Cc: brijesh.singh@amd.com, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Joerg Roedel" <joro@8bytes.org>,
	"Tom Lendacky" <thomas.lendacky@amd.com>,
	x86@kernel.org
Subject: Re: [Part2 PATCH v7 23/38] KVM: SVM: Reserve ASID range for SEV guest
Date: Mon, 6 Nov 2017 10:18:12 -0600	[thread overview]
Message-ID: <7b4007a4-2f30-a414-3917-6bcab648e592@amd.com> (raw)
In-Reply-To: <20171106103412.ikr2ymvdjocvhcpo@pd.tnic>

On 11/06/2017 04:34 AM, Borislav Petkov wrote:
...

>>   	int cpu;
>> @@ -1084,6 +1095,16 @@ static __init int svm_hardware_setup(void)
>>   		kvm_tsc_scaling_ratio_frac_bits = 32;
>>   	}
>>   
>> +	if (sev) {
>> +		if (boot_cpu_has(X86_FEATURE_SEV) &&
>> +		    IS_ENABLED(CONFIG_KVM_AMD_SEV)) {
>> +			sev_hardware_setup();
>> +			pr_info("SEV supported\n");
>> +		} else {
>> +			sev = false;
>> +		}
>> +	}
> 
> Btw, upon a second look, this hunk should go with the previous patch.
> This patch deals with ASID ranges, as the commit message states.
> 

I will see if I can move the hunk in previous patch. thanks