diff mbox

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

Message ID 1378329137-21399-1-git-send-email-brogers@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bruce Rogers Sept. 4, 2013, 9:12 p.m. UTC 
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 x86/realmode.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

Comments

Gleb Natapov Sept. 8, 2013, 1:18 p.m. UTC | #1 
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.
--
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diff mbox

Patch

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)