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From 4dfa4b8a0adf2ff3b5f48426e5f293d4ccaa86ce Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Wed, 29 Jan 2014 05:09:21 +0100
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Subject: [PATCH 03/28] scsi: Support TEST UNIT READY in the dummy LUN0
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <1390972161-27425-1-git-send-email-famz@redhat.com>
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Patchwork-id: 57014
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O-Subject: [RHEL-7 qemu-kvm PATCH] scsi: Support TEST UNIT READY in the dummy LUN0
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Bugzilla: 1004143
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1004143
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Brew: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=6965573
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SeaBIOS waits for LUN0 to respond to the TEST UNIT READY command
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in order to decide whether it should part of the boot sequence.
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If LUN0 does not respond to the command, boot is delayed by up
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to 5 seconds. This currently happens when there is no LUN0 on
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a target. Fix that by adding a trivial implementation of the
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command.
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit 1cb27d9233d572826b45bd8498d2fab1b6f01df9)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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---
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hw/scsi/scsi-bus.c | 2 ++
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1 file changed, 2 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/scsi/scsi-bus.c | 2 ++
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1 files changed, 2 insertions(+), 0 deletions(-)
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diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
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index 0f02208..a0fbf06 100644
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--- a/hw/scsi/scsi-bus.c
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+++ b/hw/scsi/scsi-bus.c
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@@ -461,6 +461,8 @@ static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf)
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r->req.dev->sense_is_ua = false;
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}
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break;
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+ case TEST_UNIT_READY:
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+ break;
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default:
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scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED));
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scsi_req_complete(req, CHECK_CONDITION);
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--
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1.7.1
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