From: Janosch Frank <frankja@linux.ibm.com>
To: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: kvm@vger.kernel.org, thuth@redhat.com, david@redhat.com,
linux-s390@vger.kernel.org, seiden@linux.ibm.com
Subject: Re: [kvm-unit-tests PATCH 9/9] s390x: skrf: Fix tprot assembly
Date: Wed, 22 Sep 2021 13:47:16 +0200 [thread overview]
Message-ID: <d645e4aa-1106-6971-e25c-4401a7d7cfdd@linux.ibm.com> (raw)
In-Reply-To: <20210922113459.56737df3@p-imbrenda>
On 9/22/21 11:34 AM, Claudio Imbrenda wrote:
> On Wed, 22 Sep 2021 07:18:11 +0000
> Janosch Frank <frankja@linux.ibm.com> wrote:
>
>> It's a base + displacement address so we need to address it via 0(%[addr]).
>>
>> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
>
> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
>
> but see comment below
>
>> ---
>> s390x/skrf.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/s390x/skrf.c b/s390x/skrf.c
>> index 8ca7588c..84fb762c 100644
>> --- a/s390x/skrf.c
>> +++ b/s390x/skrf.c
>> @@ -103,7 +103,7 @@ static void test_tprot(void)
>> {
>> report_prefix_push("tprot");
>> expect_pgm_int();
>> - asm volatile("tprot %[addr],0xf0(0)\n"
>> + asm volatile("tprot 0(%[addr]),0xf0(0)\n"
>
> I think the displacement defaults to 0 if not specified?
>
> did you get a warning, or why are you changing this now?
It fixes one of the ~18 clang warnings and making it explicit directly
tells you it's a B+D instruction i.e. it looks cleaner to me.
>
>> : : [addr] "a" (pagebuf) : );
>> check_pgm_int_code(PGM_INT_CODE_SPECIAL_OPERATION);
>> report_prefix_pop();
>
next prev parent reply other threads:[~2021-09-22 11:47 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 7:18 [kvm-unit-tests PATCH 0/9] s390x: Cleanup and maintenance 2 Janosch Frank
2021-09-22 7:18 ` [kvm-unit-tests PATCH 1/9] s390x: uv: Tolerate 0x100 query return code Janosch Frank
2021-09-22 9:12 ` Claudio Imbrenda
2021-09-22 11:36 ` Janosch Frank
2021-09-27 15:19 ` Thomas Huth
2021-09-22 7:18 ` [kvm-unit-tests PATCH 2/9] s390x: pfmf: Fix 1MB handling Janosch Frank
2021-09-22 9:16 ` Claudio Imbrenda
2021-09-27 15:23 ` Thomas Huth
2021-09-28 9:50 ` Janosch Frank
2021-09-22 7:18 ` [kvm-unit-tests PATCH 3/9] s390x: uv-host: Fence a destroy cpu test on z15 Janosch Frank
2021-09-22 9:18 ` Claudio Imbrenda
2021-09-27 15:26 ` Thomas Huth
2021-09-28 11:21 ` Janosch Frank
2021-09-28 16:28 ` Thomas Huth
2021-09-22 7:18 ` [kvm-unit-tests PATCH 4/9] lib: s390x: uv: Fix share return value and print Janosch Frank
2021-09-22 9:19 ` Claudio Imbrenda
2021-09-27 17:38 ` Thomas Huth
2021-09-22 7:18 ` [kvm-unit-tests PATCH 5/9] lib: s390x: uv: Add UVC_ERR_DEBUG switch Janosch Frank
2021-09-22 9:23 ` Claudio Imbrenda
2021-09-22 11:37 ` Janosch Frank
2021-09-27 17:41 ` Thomas Huth
2021-09-28 10:00 ` Janosch Frank
2021-09-22 7:18 ` [kvm-unit-tests PATCH 6/9] lib: s390x: Print PGM code as hex Janosch Frank
2021-09-22 9:24 ` Claudio Imbrenda
2021-09-27 17:43 ` Thomas Huth
2021-09-22 7:18 ` [kvm-unit-tests PATCH 7/9] s390x: Makefile: Remove snippet flatlib linking Janosch Frank
2021-09-27 17:47 ` Thomas Huth
2021-09-28 9:57 ` Janosch Frank
2021-09-22 7:18 ` [kvm-unit-tests PATCH 8/9] s390x: Add sthyi cc==0 r2+1 verification Janosch Frank
2021-09-22 9:31 ` Claudio Imbrenda
2021-09-22 7:18 ` [kvm-unit-tests PATCH 9/9] s390x: skrf: Fix tprot assembly Janosch Frank
2021-09-22 9:34 ` Claudio Imbrenda
2021-09-22 11:47 ` Janosch Frank [this message]
[not found] ` <20210922134112.174842-1-scgl@linux.ibm.com>
2021-09-22 13:53 ` Janosch Frank
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