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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Cc: thuth@redhat.com, drjones@redhat.com, wei.huang2@amd.com,
	Eric Auger <eric.auger@redhat.com>,
	eric.auger.pro@gmail.com, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, pbonzini@redhat.com
Subject: Re: [PATCH v4 2/3] selftests: KVM: AMD Nested test infrastructure
Date: Fri, 07 Feb 2020 10:16:34 +0100	[thread overview]
Message-ID: <87blqag3kd.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <92106709-10ff-44d3-1fe8-2c77c010913f@oracle.com>

Krish Sadhukhan <krish.sadhukhan@oracle.com> writes:

...
> +	asm volatile (
>> +		"vmload\n\t"
> Don't we need to set %rax before calling vmload ?
>

No, because it is already there

...
>> +		: : [vmcb] "r" (vmcb), [vmcb_gpa] "a" (vmcb_gpa)

"a" constraint in input operands does the job.

-- 
Vitaly


  reply	other threads:[~2020-02-07  9:16 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-06 10:47 [PATCH v4 0/3] selftests: KVM: AMD Nested SVM test infrastructure Eric Auger
2020-02-06 10:47 ` [PATCH v4 1/3] selftests: KVM: Replace get_gdt/idt_base() by get_gdt/idt() Eric Auger
2020-02-06 17:13   ` Wei Huang
2020-02-06 19:17   ` Krish Sadhukhan
2020-02-06 10:47 ` [PATCH v4 2/3] selftests: KVM: AMD Nested test infrastructure Eric Auger
2020-02-06 12:20   ` Vitaly Kuznetsov
2020-02-06 12:27     ` Auger Eric
2020-02-06 22:57   ` Krish Sadhukhan
2020-02-07  9:16     ` Vitaly Kuznetsov [this message]
2020-02-07 14:16     ` Auger Eric
2020-02-12 11:38     ` Paolo Bonzini
2020-02-06 10:47 ` [PATCH v4 3/3] selftests: KVM: SVM: Add vmcall test Eric Auger
2020-02-06 17:39   ` Wei Huang
2020-02-06 19:08     ` Krish Sadhukhan
2020-02-07 10:05       ` Auger Eric
2020-02-07 10:15     ` Auger Eric
2020-02-12 11:43       ` Paolo Bonzini
2020-02-06 22:46   ` Krish Sadhukhan
2020-02-07 14:06     ` Auger Eric
2020-02-12 11:45     ` Paolo Bonzini

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