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bh=J46+PPyCTK2yhjp28m0CSBLVIgBZJPKkIaKnWxzYYp0=; b=XV3krnR5H1PszdfaUdhBQ3T811j0p+rI9Iwl89rZKtgVvyh3/a18jsoCeyLckmlfKGBiK8 sD7rH9TMd+XpvpFBP691qEnKlfSNdt70dH6qLwookAkhcXB+9e3KEkbxWJsVEYWqzIjvf5 YT7L6uwKmiu80/VqyV+Bsp5P/j2UTqA= X-MC-Unique: SPYUiWCdMJ-st3EhLcEZiQ-1 From: Maxim Levitsky To: qemu-devel@nongnu.org Subject: [PATCH v2 5/5] block/scsi: correctly emulate the VPD block limits page Date: Wed, 9 Dec 2020 15:53:55 +0200 Message-Id: <20201209135355.561745-6-mlevitsk@redhat.com> In-Reply-To: <20201209135355.561745-1-mlevitsk@redhat.com> References: <20201209135355.561745-1-mlevitsk@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mlevitsk@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=63.128.21.124; envelope-from=mlevitsk@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , Ronnie Sahlberg , qemu-block@nongnu.org, Peter Lieven , Tom Yan , Stefan Hajnoczi , Paolo Bonzini , Maxim Levitsky , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" When the device doesn't support the VPD block limits page, we emulate it ev= en for SCSI passthrough. As a part of the emulation we need to add it to the 'Supported VPD Pages' The code that does this adds it to the page, but it doesn't increase the le= ngth of the data to be copied to the guest, thus the guest never sees the VPD bl= ock limits page as supported. Bump the transfer size by 1 in this case. Signed-off-by: Maxim Levitsky --- hw/scsi/scsi-generic.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c index 6df67bf889..4354469841 100644 --- a/hw/scsi/scsi-generic.c +++ b/hw/scsi/scsi-generic.c @@ -134,7 +134,7 @@ static int execute_command(BlockBackend *blk, return 0; } =20 -static void scsi_handle_inquiry_reply(SCSIGenericReq *r, SCSIDevice *s) +static int scsi_handle_inquiry_reply(SCSIGenericReq *r, SCSIDevice *s, int= len) { uint8_t page, page_idx; =20 @@ -200,8 +200,12 @@ static void scsi_handle_inquiry_reply(SCSIGenericReq *= r, SCSIDevice *s) r->buf[page_idx] =3D 0xb0; } stw_be_p(r->buf + 2, lduw_be_p(r->buf + 2) + 1); + + if (len < r->buflen) + len++; } } + return len; } =20 static int scsi_generic_emulate_block_limits(SCSIGenericReq *r, SCSIDevice= *s) @@ -316,7 +320,7 @@ static void scsi_read_complete(void * opaque, int ret) } } if (r->req.cmd.buf[0] =3D=3D INQUIRY) { - scsi_handle_inquiry_reply(r, s); + len =3D scsi_handle_inquiry_reply(r, s, len); } =20 req_complete: --=20 2.26.2