From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH v3] kvm-unit-tests : Basic architecture of VMX nested
 test case
Date: Tue, 30 Jul 2013 16:53:53 +0200
Message-ID: <51F7D381.107@redhat.com>
References: <1375020009-6225-1-git-send-email-yzt356@gmail.com>
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Cc: kvm@vger.kernel.org, jan.kiszka@web.de, gleb@redhat.com
To: Arthur Chunqi Li <yzt356@gmail.com>
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Il 28/07/2013 16:00, Arthur Chunqi Li ha scritto:
> +
> +	while (1) {
> +		asm volatile (
> +			"mov %%rsp, %%rsi\n\t"
> +			"mov %2, %%rdi\n\t"
> +			"vmwrite %%rsi, %%rdi\n\t"
> +
> +			LOAD_GPR_C
> +			"cmpl $0, %1\n\t"
> +			"jne 1f\n\t"
> +			LOAD_RFLAGS
> +			"vmlaunch\n\t"
> +			"jmp 2f\n\t"
> +			"1: "
> +			"vmresume\n\t"
> +			"2: "
> +			"setbe %0\n\t"

Perhaps here add

			jbe vmx_return
			ud2

but it can be added in a follow-up.

> +			"vmx_return:\n\t"
> +			SAVE_GPR_C
> +			SAVE_RFLAGS
> +			: "=m"(fail)
> +			: "m"(launched), "i"(HOST_RSP)
> +			: "rdi", "rsi", "memory", "cc"
> +
> +		);

Nice! :)

I pushed the patch.

Paolo