* [PATCH] test: Add emulator test for iret instruction
@ 2010-07-28 9:39 Mohammed Gamal
2010-07-28 19:55 ` Marcelo Tosatti
2010-07-29 15:50 ` Marcelo Tosatti
0 siblings, 2 replies; 13+ messages in thread
From: Mohammed Gamal @ 2010-07-28 9:39 UTC (permalink / raw)
To: avi; +Cc: mtosatti, kvm, Mohammed Gamal
This adds a unit test for real mode emulation of the iret instruction
Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
---
Changes from v1:
- Added test for 16-bit iret
- Added tests for returned eflags
---
kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 79 insertions(+), 0 deletions(-)
diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
index bd79348..74456c3 100644
--- a/kvm/test/x86/realmode.c
+++ b/kvm/test/x86/realmode.c
@@ -865,6 +865,84 @@ void test_pusha_popa()
print_serial("Pusha/Popa Test2: PASS\n");
}
+void test_iret()
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(iret32, "pushf\n\t"
+ "pushl %cs\n\t"
+ "call 1f\n\t" /* a near call will push eip onto the stack */
+ "jmp 2f\n\t"
+ "1: iret\n\t"
+ "2:\n\t"
+ );
+
+ MK_INSN(iret16, "pushfw\n\t"
+ "pushw %cs\n\t"
+ "callw 1f\n\t"
+ "jmp 2f\n\t"
+ "1: iretw\n\t"
+ "2:\n\t");
+
+ MK_INSN(iret_flags32, "pushfl\n\t"
+ "popl %eax\n\t"
+ "andl $~0x2, %eax\n\t"
+ "orl $0xffc08028, %eax\n\t"
+ "pushl %eax\n\t"
+ "pushl %cs\n\t"
+ "call 1f\n\t"
+ "jmp 2f\n\t"
+ "1: iret\n\t"
+ "2:\n\t");
+
+ MK_INSN(iret_flags16, "pushfw\n\t"
+ "popw %ax\n\t"
+ "and $~0x2, %ax\n\t"
+ "or $0x8028, %ax\n\t"
+ "pushw %ax\n\t"
+ "pushw %cs\n\t"
+ "callw 1f\n\t"
+ "jmp 2f\n\t"
+ "1: iretw\n\t"
+ "2:\n\t");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret32,
+ insn_iret32_end - insn_iret32);
+
+ if (!regs_equal(&inregs, &outregs, 0))
+ print_serial("iret Test 1: FAIL\n");
+ else
+ print_serial("iret Test 1: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret16,
+ insn_iret16_end - insn_iret16);
+
+ if (!regs_equal(&inregs, &outregs, 0))
+ print_serial("iret Test 2: FAIL\n");
+ else
+ print_serial("iret Test 2: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret_flags32,
+ insn_iret_flags32_end - insn_iret_flags32);
+
+ if (!regs_equal(&inregs, &outregs, R_AX))
+ print_serial("iret Test 3: FAIL\n");
+ else
+ print_serial("iret Test 3: PASS\n");
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret_flags16,
+ insn_iret_flags16_end - insn_iret_flags16);
+
+ if (!regs_equal(&inregs, &outregs, R_AX))
+ print_serial("iret Test 4: FAIL\n");
+ else
+ print_serial("iret Test 4: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -886,6 +964,7 @@ void realmode_start(void)
/* long jmp test uses call near so test it after testing call */
test_long_jmp();
test_xchg();
+ test_iret();
exit(0);
}
--
1.7.0.4
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 9:39 [PATCH] test: Add emulator test for iret instruction Mohammed Gamal
@ 2010-07-28 19:55 ` Marcelo Tosatti
2010-07-28 20:28 ` Mohammed Gamal
2010-07-29 15:50 ` Marcelo Tosatti
1 sibling, 1 reply; 13+ messages in thread
From: Marcelo Tosatti @ 2010-07-28 19:55 UTC (permalink / raw)
To: Mohammed Gamal; +Cc: avi, kvm
On Wed, Jul 28, 2010 at 12:39:01PM +0300, Mohammed Gamal wrote:
> This adds a unit test for real mode emulation of the iret instruction
>
> Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
>
> ---
> Changes from v1:
> - Added test for 16-bit iret
> - Added tests for returned eflags
> ---
> kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 79 insertions(+), 0 deletions(-)
>
> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
> index bd79348..74456c3 100644
> --- a/kvm/test/x86/realmode.c
> +++ b/kvm/test/x86/realmode.c
> @@ -865,6 +865,84 @@ void test_pusha_popa()
> print_serial("Pusha/Popa Test2: PASS\n");
> }
>
> +void test_iret()
> +{
> + struct regs inregs = { 0 }, outregs;
> +
> + MK_INSN(iret32, "pushf\n\t"
> + "pushl %cs\n\t"
> + "call 1f\n\t" /* a near call will push eip onto the stack */
> + "jmp 2f\n\t"
> + "1: iret\n\t"
> + "2:\n\t"
> + );
> +
> + MK_INSN(iret16, "pushfw\n\t"
> + "pushw %cs\n\t"
> + "callw 1f\n\t"
> + "jmp 2f\n\t"
> + "1: iretw\n\t"
> + "2:\n\t");
Unless iret causes a task switch, it will not cause an exit.
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 19:55 ` Marcelo Tosatti
@ 2010-07-28 20:28 ` Mohammed Gamal
2010-07-28 20:32 ` Marcelo Tosatti
0 siblings, 1 reply; 13+ messages in thread
From: Mohammed Gamal @ 2010-07-28 20:28 UTC (permalink / raw)
To: Marcelo Tosatti; +Cc: avi, kvm
On Wed, Jul 28, 2010 at 10:55 PM, Marcelo Tosatti <mtosatti@redhat.com> wrote:
> On Wed, Jul 28, 2010 at 12:39:01PM +0300, Mohammed Gamal wrote:
>> This adds a unit test for real mode emulation of the iret instruction
>>
>> Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
>>
>> ---
>> Changes from v1:
>> - Added test for 16-bit iret
>> - Added tests for returned eflags
>> ---
>> kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
>> 1 files changed, 79 insertions(+), 0 deletions(-)
>>
>> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
>> index bd79348..74456c3 100644
>> --- a/kvm/test/x86/realmode.c
>> +++ b/kvm/test/x86/realmode.c
>> @@ -865,6 +865,84 @@ void test_pusha_popa()
>> print_serial("Pusha/Popa Test2: PASS\n");
>> }
>>
>> +void test_iret()
>> +{
>> + struct regs inregs = { 0 }, outregs;
>> +
>> + MK_INSN(iret32, "pushf\n\t"
>> + "pushl %cs\n\t"
>> + "call 1f\n\t" /* a near call will push eip onto the stack */
>> + "jmp 2f\n\t"
>> + "1: iret\n\t"
>> + "2:\n\t"
>> + );
>> +
>> + MK_INSN(iret16, "pushfw\n\t"
>> + "pushw %cs\n\t"
>> + "callw 1f\n\t"
>> + "jmp 2f\n\t"
>> + "1: iretw\n\t"
>> + "2:\n\t");
>
> Unless iret causes a task switch, it will not cause an exit.
>
>
The test covers only the real mode case, we won't have a task switch there, no?
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 20:28 ` Mohammed Gamal
@ 2010-07-28 20:32 ` Marcelo Tosatti
2010-07-28 20:36 ` Mohammed Gamal
0 siblings, 1 reply; 13+ messages in thread
From: Marcelo Tosatti @ 2010-07-28 20:32 UTC (permalink / raw)
To: Mohammed Gamal; +Cc: avi, kvm
On Wed, Jul 28, 2010 at 11:28:05PM +0300, Mohammed Gamal wrote:
> On Wed, Jul 28, 2010 at 10:55 PM, Marcelo Tosatti <mtosatti@redhat.com> wrote:
> > On Wed, Jul 28, 2010 at 12:39:01PM +0300, Mohammed Gamal wrote:
> >> This adds a unit test for real mode emulation of the iret instruction
> >>
> >> Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
> >>
> >> ---
> >> Changes from v1:
> >> - Added test for 16-bit iret
> >> - Added tests for returned eflags
> >> ---
> >> kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
> >> 1 files changed, 79 insertions(+), 0 deletions(-)
> >>
> >> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
> >> index bd79348..74456c3 100644
> >> --- a/kvm/test/x86/realmode.c
> >> +++ b/kvm/test/x86/realmode.c
> >> @@ -865,6 +865,84 @@ void test_pusha_popa()
> >> print_serial("Pusha/Popa Test2: PASS\n");
> >> }
> >>
> >> +void test_iret()
> >> +{
> >> + struct regs inregs = { 0 }, outregs;
> >> +
> >> + MK_INSN(iret32, "pushf\n\t"
> >> + "pushl %cs\n\t"
> >> + "call 1f\n\t" /* a near call will push eip onto the stack */
> >> + "jmp 2f\n\t"
> >> + "1: iret\n\t"
> >> + "2:\n\t"
> >> + );
> >> +
> >> + MK_INSN(iret16, "pushfw\n\t"
> >> + "pushw %cs\n\t"
> >> + "callw 1f\n\t"
> >> + "jmp 2f\n\t"
> >> + "1: iretw\n\t"
> >> + "2:\n\t");
> >
> > Unless iret causes a task switch, it will not cause an exit.
> >
> >
> The test covers only the real mode case, we won't have a task switch there, no?
No. And there is no vmexit for iret, so it does not go through the
emulator.
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 20:32 ` Marcelo Tosatti
@ 2010-07-28 20:36 ` Mohammed Gamal
[not found] ` <20100728205627.GA31469@amt.cnet>
0 siblings, 1 reply; 13+ messages in thread
From: Mohammed Gamal @ 2010-07-28 20:36 UTC (permalink / raw)
To: Marcelo Tosatti; +Cc: avi, kvm
On Wed, Jul 28, 2010 at 11:32 PM, Marcelo Tosatti <mtosatti@redhat.com> wrote:
> On Wed, Jul 28, 2010 at 11:28:05PM +0300, Mohammed Gamal wrote:
>> On Wed, Jul 28, 2010 at 10:55 PM, Marcelo Tosatti <mtosatti@redhat.com> wrote:
>> > On Wed, Jul 28, 2010 at 12:39:01PM +0300, Mohammed Gamal wrote:
>> >> This adds a unit test for real mode emulation of the iret instruction
>> >>
>> >> Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
>> >>
>> >> ---
>> >> Changes from v1:
>> >> - Added test for 16-bit iret
>> >> - Added tests for returned eflags
>> >> ---
>> >> kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
>> >> 1 files changed, 79 insertions(+), 0 deletions(-)
>> >>
>> >> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
>> >> index bd79348..74456c3 100644
>> >> --- a/kvm/test/x86/realmode.c
>> >> +++ b/kvm/test/x86/realmode.c
>> >> @@ -865,6 +865,84 @@ void test_pusha_popa()
>> >> print_serial("Pusha/Popa Test2: PASS\n");
>> >> }
>> >>
>> >> +void test_iret()
>> >> +{
>> >> + struct regs inregs = { 0 }, outregs;
>> >> +
>> >> + MK_INSN(iret32, "pushf\n\t"
>> >> + "pushl %cs\n\t"
>> >> + "call 1f\n\t" /* a near call will push eip onto the stack */
>> >> + "jmp 2f\n\t"
>> >> + "1: iret\n\t"
>> >> + "2:\n\t"
>> >> + );
>> >> +
>> >> + MK_INSN(iret16, "pushfw\n\t"
>> >> + "pushw %cs\n\t"
>> >> + "callw 1f\n\t"
>> >> + "jmp 2f\n\t"
>> >> + "1: iretw\n\t"
>> >> + "2:\n\t");
>> >
>> > Unless iret causes a task switch, it will not cause an exit.
>> >
>> >
>> The test covers only the real mode case, we won't have a task switch there, no?
>
> No. And there is no vmexit for iret, so it does not go through the
> emulator.
>
I'm pretty sure the iret instruction went through the emulator. I saw
the instruction opcode (0xcf) being in ftrace.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 9:39 [PATCH] test: Add emulator test for iret instruction Mohammed Gamal
2010-07-28 19:55 ` Marcelo Tosatti
@ 2010-07-29 15:50 ` Marcelo Tosatti
1 sibling, 0 replies; 13+ messages in thread
From: Marcelo Tosatti @ 2010-07-29 15:50 UTC (permalink / raw)
To: Mohammed Gamal; +Cc: avi, kvm
On Wed, Jul 28, 2010 at 12:39:01PM +0300, Mohammed Gamal wrote:
> This adds a unit test for real mode emulation of the iret instruction
>
> Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
>
> ---
> Changes from v1:
> - Added test for 16-bit iret
> - Added tests for returned eflags
> ---
> kvm/test/x86/realmode.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 79 insertions(+), 0 deletions(-)
Applied, thanks.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH] test: Add emulator test for iret instruction
@ 2010-07-27 23:22 Mohammed Gamal
2010-07-28 4:21 ` Avi Kivity
0 siblings, 1 reply; 13+ messages in thread
From: Mohammed Gamal @ 2010-07-27 23:22 UTC (permalink / raw)
To: avi; +Cc: mtosatti, kvm, Mohammed Gamal
This adds a unit test for real mode emulation of the iret instruction
Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
---
kvm/test/x86/realmode.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
index bd79348..16716cc 100644
--- a/kvm/test/x86/realmode.c
+++ b/kvm/test/x86/realmode.c
@@ -865,6 +865,28 @@ void test_pusha_popa()
print_serial("Pusha/Popa Test2: PASS\n");
}
+void test_iret()
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(iret, "pushf\n\t"
+ "pushl %cs\n\t"
+ "call 1f\n\t" /* a near call will push eip onto the stack */
+ "jmp 2f\n\t"
+ "1:iret\n\t"
+ "2:\n\t"
+ );
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret,
+ insn_iret_end - insn_iret);
+
+ if (!regs_equal(&inregs, &outregs, 0))
+ print_serial("iret Test 1: FAIL\n");
+ else
+ print_serial("iret Test 1: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -886,6 +908,7 @@ void realmode_start(void)
/* long jmp test uses call near so test it after testing call */
test_long_jmp();
test_xchg();
+ test_iret();
exit(0);
}
--
1.7.0.4
^ permalink raw reply related [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-27 23:22 Mohammed Gamal
@ 2010-07-28 4:21 ` Avi Kivity
2010-07-28 4:28 ` Avi Kivity
0 siblings, 1 reply; 13+ messages in thread
From: Avi Kivity @ 2010-07-28 4:21 UTC (permalink / raw)
To: Mohammed Gamal; +Cc: mtosatti, kvm
On 07/28/2010 02:22 AM, Mohammed Gamal wrote:
> This adds a unit test for real mode emulation of the iret instruction
>
> Signed-off-by: Mohammed Gamal<m.gamal005@gmail.com>
> ---
> kvm/test/x86/realmode.c | 23 +++++++++++++++++++++++
> 1 files changed, 23 insertions(+), 0 deletions(-)
>
> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
> index bd79348..16716cc 100644
> --- a/kvm/test/x86/realmode.c
> +++ b/kvm/test/x86/realmode.c
> @@ -865,6 +865,28 @@ void test_pusha_popa()
> print_serial("Pusha/Popa Test2: PASS\n");
> }
>
> +void test_iret()
> +{
> + struct regs inregs = { 0 }, outregs;
> +
> + MK_INSN(iret, "pushf\n\t"
> + "pushl %cs\n\t"
> + "call 1f\n\t" /* a near call will push eip onto the stack */
> + "jmp 2f\n\t"
> + "1:iret\n\t"
> + "2:\n\t"
> + );
> +
> + exec_in_big_real_mode(&inregs,&outregs,
> + insn_iret,
> + insn_iret_end - insn_iret);
> +
> + if (!regs_equal(&inregs,&outregs, 0))
> + print_serial("iret Test 1: FAIL\n");
> + else
> + print_serial("iret Test 1: PASS\n");
> +}
> +
This tests 32-bit iret, please test 16-bit iret as well (pushfw, pushw
cs, callw, iretw).
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
^ permalink raw reply [flat|nested] 13+ messages in thread* Re: [PATCH] test: Add emulator test for iret instruction
2010-07-28 4:21 ` Avi Kivity
@ 2010-07-28 4:28 ` Avi Kivity
0 siblings, 0 replies; 13+ messages in thread
From: Avi Kivity @ 2010-07-28 4:28 UTC (permalink / raw)
To: Mohammed Gamal; +Cc: mtosatti, kvm
On 07/28/2010 07:21 AM, Avi Kivity wrote:
> On 07/28/2010 02:22 AM, Mohammed Gamal wrote:
>> This adds a unit test for real mode emulation of the iret instruction
>>
>> Signed-off-by: Mohammed Gamal<m.gamal005@gmail.com>
>> ---
>> kvm/test/x86/realmode.c | 23 +++++++++++++++++++++++
>> 1 files changed, 23 insertions(+), 0 deletions(-)
>>
>> diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
>> index bd79348..16716cc 100644
>> --- a/kvm/test/x86/realmode.c
>> +++ b/kvm/test/x86/realmode.c
>> @@ -865,6 +865,28 @@ void test_pusha_popa()
>> print_serial("Pusha/Popa Test2: PASS\n");
>> }
>>
>> +void test_iret()
>> +{
>> + struct regs inregs = { 0 }, outregs;
>> +
>> + MK_INSN(iret, "pushf\n\t"
>> + "pushl %cs\n\t"
>> + "call 1f\n\t" /* a near call will push eip onto the
>> stack */
>> + "jmp 2f\n\t"
>> + "1:iret\n\t"
>> + "2:\n\t"
>> + );
>> +
>> + exec_in_big_real_mode(&inregs,&outregs,
>> + insn_iret,
>> + insn_iret_end - insn_iret);
>> +
>> + if (!regs_equal(&inregs,&outregs, 0))
>> + print_serial("iret Test 1: FAIL\n");
>> + else
>> + print_serial("iret Test 1: PASS\n");
>> +}
>> +
>
> This tests 32-bit iret, please test 16-bit iret as well (pushfw, pushw
> cs, callw, iretw).
>
Also add tests that set bits that must be zero (and checks that IRET
clears them in eflags) or clears bit 1 and sees that IRET sets it.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH] test: Add emulator test for iret instruction
@ 2010-07-27 23:03 Mohammed Gamal
0 siblings, 0 replies; 13+ messages in thread
From: Mohammed Gamal @ 2010-07-27 23:03 UTC (permalink / raw)
To: avi; +Cc: mtosatti, kvm, Mohammed Gamal
This adds a unit test for real mode emulation of the iret instruction
Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com>
---
kvm/test/x86/realmode.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/kvm/test/x86/realmode.c b/kvm/test/x86/realmode.c
index bd79348..564116a 100644
--- a/kvm/test/x86/realmode.c
+++ b/kvm/test/x86/realmode.c
@@ -865,6 +865,28 @@ void test_pusha_popa()
print_serial("Pusha/Popa Test2: PASS\n");
}
+void test_iret()
+{
+ struct regs inregs = { 0 }, outregs;
+
+ MK_INSN(iret, "pushf\n\t"
+ "pushl %cs\n\t"
+ "call 1f\n\t" /* a near call will push eip onto the stack */
+ "jmp 2f\n\t"
+ "1:iret\n\t"
+ "2:\n\t"
+ );
+
+ exec_in_big_real_mode(&inregs, &outregs,
+ insn_iret,
+ insn_iret_end - insn_iret);
+
+ if (!regs_equal(&inregs, &outregs, R_AX))
+ print_serial("iret Test 1: FAIL\n");
+ else
+ print_serial("iret Test 1: PASS\n");
+}
+
void realmode_start(void)
{
test_null();
@@ -886,6 +908,7 @@ void realmode_start(void)
/* long jmp test uses call near so test it after testing call */
test_long_jmp();
test_xchg();
+ test_iret();
exit(0);
}
--
1.7.0.4
^ permalink raw reply related [flat|nested] 13+ messages in thread
end of thread, other threads:[~2010-07-29 16:20 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-07-28 9:39 [PATCH] test: Add emulator test for iret instruction Mohammed Gamal
2010-07-28 19:55 ` Marcelo Tosatti
2010-07-28 20:28 ` Mohammed Gamal
2010-07-28 20:32 ` Marcelo Tosatti
2010-07-28 20:36 ` Mohammed Gamal
[not found] ` <20100728205627.GA31469@amt.cnet>
[not found] ` <AANLkTi=tguT3Y2qStz-Z31HQF684VDiG=gomJfB34AJj@mail.gmail.com>
2010-07-28 23:16 ` Mohammed Gamal
2010-07-28 23:18 ` Mohammed Gamal
2010-07-29 1:21 ` Marcelo Tosatti
2010-07-29 15:50 ` Marcelo Tosatti
-- strict thread matches above, loose matches on Subject: below --
2010-07-27 23:22 Mohammed Gamal
2010-07-28 4:21 ` Avi Kivity
2010-07-28 4:28 ` Avi Kivity
2010-07-27 23:03 Mohammed Gamal
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