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From: Janosch Frank <frankja@linux.ibm.com>
To: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org, imbrenda@linux.ibm.com,
	david@redhat.com, thuth@redhat.com, cohuck@redhat.com
Subject: [kvm-unit-tests PATCH 8/8] lib: s390x: uv: Add rc 0x100 query error handling
Date: Fri, 13 Aug 2021 07:36:15 +0000	[thread overview]
Message-ID: <20210813073615.32837-9-frankja@linux.ibm.com> (raw)
In-Reply-To: <20210813073615.32837-1-frankja@linux.ibm.com>

Let's not get bitten by an extension of the query struct and handle
the rc 0x100 error properly which does indicate that the UV has more
data for us.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 lib/s390x/uv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/s390x/uv.c b/lib/s390x/uv.c
index fd9de944..c5c69c47 100644
--- a/lib/s390x/uv.c
+++ b/lib/s390x/uv.c
@@ -49,6 +49,8 @@ int uv_setup(void)
 	if (!test_facility(158))
 		return 0;
 
-	assert(!uv_call(0, (u64)&uvcb_qui));
+	uv_call(0, (u64)&uvcb_qui);
+
+	assert(uvcb_qui.header.rc == 1 || uvcb_qui.header.rc == 0x100);
 	return 1;
 }
-- 
2.30.2


  parent reply	other threads:[~2021-08-13  7:37 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-13  7:36 [kvm-unit-tests PATCH 0/8] s390x: Cleanup and maintenance Janosch Frank
2021-08-13  7:36 ` [kvm-unit-tests PATCH 1/8] s390x: lib: Extend bitops Janosch Frank
2021-08-13  8:32   ` Claudio Imbrenda
2021-08-13 11:31     ` Janosch Frank
2021-08-18  8:20       ` Thomas Huth
2021-08-18  8:39         ` Janosch Frank
2021-08-18  8:57           ` Thomas Huth
2021-08-13  7:36 ` [kvm-unit-tests PATCH 2/8] lib: s390x: Add 0x3d, 0x3e and 0x3f PGM constants Janosch Frank
2021-08-13  8:20   ` Claudio Imbrenda
2021-08-13  7:36 ` [kvm-unit-tests PATCH 3/8] lib: s390x: Print addressing related exception information Janosch Frank
2021-08-13  8:40   ` Claudio Imbrenda
2021-08-13 11:34     ` Janosch Frank
2021-08-18  9:12   ` Thomas Huth
2021-08-18  9:29     ` Claudio Imbrenda
2021-08-18  9:53     ` Janosch Frank
2021-08-13  7:36 ` [kvm-unit-tests PATCH 4/8] lib: s390x: Start using bitops instead of magic constants Janosch Frank
2021-08-13  8:41   ` Claudio Imbrenda
2021-08-18  9:24   ` Thomas Huth
2021-08-13  7:36 ` [kvm-unit-tests PATCH 5/8] s390x: uv-host: Explain why we set up the home space and remove the space change Janosch Frank
2021-08-13  8:45   ` Claudio Imbrenda
2021-08-13 13:14     ` Janosch Frank
2021-08-13  7:36 ` [kvm-unit-tests PATCH 6/8] lib: s390x: Add PSW_MASK_64 Janosch Frank
2021-08-13  8:46   ` Claudio Imbrenda
2021-08-18  9:28   ` Thomas Huth
2021-08-13  7:36 ` [kvm-unit-tests PATCH 7/8] lib: s390x: Control register constant cleanup Janosch Frank
2021-08-13  8:49   ` Claudio Imbrenda
2021-08-13  9:09     ` Janosch Frank
2021-08-13  7:36 ` Janosch Frank [this message]
2021-08-13  8:50   ` [kvm-unit-tests PATCH 8/8] lib: s390x: uv: Add rc 0x100 query error handling Claudio Imbrenda
2021-08-18  9:30   ` Thomas Huth
2021-08-18  9:57     ` Janosch Frank

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