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Thu, 21 Apr 2022 11:33:45 +0000 (GMT) Message-ID: Date: Thu, 21 Apr 2022 13:33:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [kvm-unit-tests PATCH v4 4/5] s390x: uv-guest: add share bit test Content-Language: en-US To: Steffen Eiden , Thomas Huth , Claudio Imbrenda , David Hildenbrand Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org References: <20220421094527.32261-1-seiden@linux.ibm.com> <20220421094527.32261-5-seiden@linux.ibm.com> From: Janosch Frank In-Reply-To: <20220421094527.32261-5-seiden@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: xgEyrejMilHtZw5Y3t38RP7CmnZcUmnu X-Proofpoint-ORIG-GUID: 93Tilvnqd4OvGqPw613ZjN5rhBt2G-OC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-04-20_06,2022-04-21_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 spamscore=0 phishscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 malwarescore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2204210064 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org On 4/21/22 11:45, Steffen Eiden wrote: > The UV facility bits shared/unshared must both be set or none. > > Signed-off-by: Steffen Eiden > --- > s390x/uv-guest.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/s390x/uv-guest.c b/s390x/uv-guest.c > index 728c60aa..77057bd2 100644 > --- a/s390x/uv-guest.c > +++ b/s390x/uv-guest.c > @@ -159,6 +159,14 @@ static void test_invalid(void) > report_prefix_pop(); > } > > +static void test_share_bits(void) > +{ > + bool unshare = uv_query_test_call(BIT_UVC_CMD_REMOVE_SHARED_ACCESS); > + bool share = uv_query_test_call(BIT_UVC_CMD_SET_SHARED_ACCESS); > + report_prefix_push("query"); > + report(!(share ^ unshare), "share bits"); "share bits are identical" ? report_prefix_pop(); > +} > + > int main(void) > { > bool has_uvc = test_facility(158); > @@ -169,6 +177,12 @@ int main(void) > goto done; > } > > + /* > + * Needs to be done before the guest-fence, > + * as the fence tests if both shared bits are present > + */ > + test_share_bits(); > + > if (!uv_os_is_guest()) { > report_skip("Not a protected guest"); > goto done;