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Date:   Mon, 2 Nov 2020 15:56:57 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     shuo.a.liu@intel.com
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Yu Wang <yu1.wang@intel.com>,
        Reinette Chatre <reinette.chatre@intel.com>,
        Yakui Zhao <yakui.zhao@intel.com>,
        Dave Hansen <dave.hansen@intel.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Fengwei Yin <fengwei.yin@intel.com>,
        Zhi Wang <zhi.a.wang@intel.com>,
        Zhenyu Wang <zhenyuw@linux.intel.com>,
        Arvind Sankar <nivedita@alum.mit.edu>,
        Peter Zijlstra <peterz@infradead.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH v5 04/17] x86/acrn: Introduce hypercall interfaces
Message-ID: <20201102145657.GD15392@zn.tnic>
References: <20201019061803.13298-1-shuo.a.liu@intel.com>
 <20201019061803.13298-5-shuo.a.liu@intel.com>
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In-Reply-To: <20201019061803.13298-5-shuo.a.liu@intel.com>
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On Mon, Oct 19, 2020 at 02:17:50PM +0800, shuo.a.liu@intel.com wrote:
> +static inline long acrn_hypercall0(unsigned long hcall_id)
> +{
> +	long result;
> +
> +	asm volatile("movl %1, %%r8d\n\t"
> +		     "vmcall\n\t"
> +		     : "=a" (result)
> +		     : "ir" (hcall_id)
			^^

Not "irm"? Or simply "g" in that case?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette