diff mbox

[kvm-unit-tests] x86: test_conforming_switch misses es initialization

Message ID 1417945141-17204-1-git-send-email-namit@cs.technion.ac.il (mailing list archive)
State New, archived
Headers show

Commit Message

Nadav Amit Dec. 7, 2014, 9:39 a.m. UTC
test_conforming_switch in the taskswitch2 tests, miss es initialization.
Fix it.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
---
 x86/taskswitch2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Paolo Bonzini Dec. 10, 2014, 9:08 p.m. UTC | #1
Applied, thanks.

Paolo

----- Original Message -----
> From: "Nadav Amit" <namit@cs.technion.ac.il>
> To: pbonzini@redhat.com
> Cc: kvm@vger.kernel.org, "Nadav Amit" <namit@cs.technion.ac.il>
> Sent: Sunday, December 7, 2014 10:39:01 AM
> Subject: [PATCH kvm-unit-tests] x86: test_conforming_switch misses es initialization
> 
> test_conforming_switch in the taskswitch2 tests, miss es initialization.
> Fix it.
> 
> Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
> ---
>  x86/taskswitch2.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/x86/taskswitch2.c b/x86/taskswitch2.c
> index f55843c..db3e41a 100644
> --- a/x86/taskswitch2.c
> +++ b/x86/taskswitch2.c
> @@ -271,7 +271,8 @@ void test_conforming_switch(void)
>  
>  	tss_intr.cs = CONFORM_CS_SEL | 3;
>  	tss_intr.eip = (u32)user_tss;
> -	tss_intr.ds = tss_intr.gs = tss_intr.fs = tss_intr.ss = USER_DS;
> +	tss_intr.ss = USER_DS;
> +	tss_intr.ds = tss_intr.gs = tss_intr.es = tss_intr.fs = tss_intr.ss;
>  	tss_intr.eflags |= 3 << IOPL_SHIFT;
>  	set_gdt_entry(CONFORM_CS_SEL, 0, 0xffffffff, 0x9f, 0xc0);
>  	asm volatile("lcall $" xstr(TSS_INTR) ", $0xf4f4f4f4");
> --
> 1.9.1
> 
> 
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diff mbox

Patch

diff --git a/x86/taskswitch2.c b/x86/taskswitch2.c
index f55843c..db3e41a 100644
--- a/x86/taskswitch2.c
+++ b/x86/taskswitch2.c
@@ -271,7 +271,8 @@  void test_conforming_switch(void)
 
 	tss_intr.cs = CONFORM_CS_SEL | 3;
 	tss_intr.eip = (u32)user_tss;
-	tss_intr.ds = tss_intr.gs = tss_intr.fs = tss_intr.ss = USER_DS;
+	tss_intr.ss = USER_DS;
+	tss_intr.ds = tss_intr.gs = tss_intr.es = tss_intr.fs = tss_intr.ss;
 	tss_intr.eflags |= 3 << IOPL_SHIFT;
 	set_gdt_entry(CONFORM_CS_SEL, 0, 0xffffffff, 0x9f, 0xc0);
 	asm volatile("lcall $" xstr(TSS_INTR) ", $0xf4f4f4f4");