Re: [PATCH kvm-unit-tests] realmode: test RETF imm

[Gleb Natapov <gleb@redhat.com>]

On Wed, Sep 04, 2013 at 03:12:17PM -0600, Bruce Rogers wrote:
> Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>

> ---
>  x86/realmode.c |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/x86/realmode.c b/x86/realmode.c
> index 3546771..c57e033 100644
> --- a/x86/realmode.c
> +++ b/x86/realmode.c
> @@ -481,6 +481,9 @@ void test_io(void)
>  asm ("retf: lretw");
>  extern void retf();
>  
> +asm ("retf_imm: lretw $10");
> +extern void retf_imm();
> +
>  void test_call(void)
>  {
>  	u32 esp[16];
> @@ -503,6 +506,7 @@ void test_call(void)
>  	MK_INSN(call_far1,  "lcallw *(%ebx)\n\t");
>  	MK_INSN(call_far2,  "lcallw $0, $retf\n\t");
>  	MK_INSN(ret_imm,    "sub $10, %sp; jmp 2f; 1: retw $10; 2: callw 1b");
> +	MK_INSN(retf_imm,   "sub $10, %sp; lcallw $0, $retf_imm");
>  
>  	exec_in_big_real_mode(&insn_call1);
>  	report("call 1", R_AX, outregs.eax == 0x1234);
> @@ -523,6 +527,9 @@ void test_call(void)
>  
>  	exec_in_big_real_mode(&insn_ret_imm);
>  	report("ret imm 1", 0, 1);
> +
> +	exec_in_big_real_mode(&insn_retf_imm);
> +	report("retf imm 1", 0, 1);
>  }
>  
>  void test_jcc_short(void)
> -- 
> 1.7.7

--
			Gleb.