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From: Ani Sinha <anisinha@redhat.com>
To: qemu-devel@nongnu.org, Thomas Huth <thuth@redhat.com>,
	Laurent Vivier <lvivier@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Cc: Ani Sinha <anisinha@redhat.com>,
	mst@redhat.com, imammedo@redhat.com,
	Michael Labiuk <michael.labiuk@virtuozzo.com>
Subject: [PATCH v4 4/5] tests/qtest/hd-geo-test: fix incorrect pcie-root-port usage and simplify test
Date: Mon, 26 Jun 2023 19:23:23 +0530	[thread overview]
Message-ID: <20230626135324.10687-5-anisinha@redhat.com> (raw)
In-Reply-To: <20230626135324.10687-1-anisinha@redhat.com>

The test attaches both a SCSI controller and a pcie-to-pci bridge on the same
pcie-root-port on slot 0. This is incorrect since a single downstream device
can be attached to a non-multifunction pcie-root-port on slot 0. Additionally
using pcie.0 as id for pcie-root-port is incorrect as that id is reserved
only for the root bus.

In the test scenario, there is no need to attach a pcie-root-port to the
root complex. A SCSI controller can be attached to a pcie-to-pci bridge
which can then be directly attached to the root bus (pcie.0).

Fix the test and simplify it.

CC: mst@redhat.com
CC: imammedo@redhat.com
CC: Michael Labiuk <michael.labiuk@virtuozzo.com>

Signed-off-by: Ani Sinha <anisinha@redhat.com>
---
 tests/qtest/hd-geo-test.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/tests/qtest/hd-geo-test.c b/tests/qtest/hd-geo-test.c
index 5aa258a2b3..d08bffad91 100644
--- a/tests/qtest/hd-geo-test.c
+++ b/tests/qtest/hd-geo-test.c
@@ -784,14 +784,12 @@ static void test_override_scsi(void)
     test_override(args, "pc", expected);
 }
 
-static void setup_pci_bridge(TestArgs *args, const char *id, const char *rootid)
+static void setup_pci_bridge(TestArgs *args, const char *id)
 {
 
-    char *root, *br;
-    root = g_strdup_printf("-device pcie-root-port,id=%s", rootid);
-    br = g_strdup_printf("-device pcie-pci-bridge,bus=%s,id=%s", rootid, id);
+    char *br;
+    br = g_strdup_printf("-device pcie-pci-bridge,bus=pcie.0,id=%s", id);
 
-    args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, root);
     args->argc = append_arg(args->argc, args->argv, ARGV_SIZE, br);
 }
 
@@ -811,8 +809,8 @@ static void test_override_scsi_q35(void)
     add_drive_with_mbr(args, empty_mbr, 1);
     add_drive_with_mbr(args, empty_mbr, 1);
     add_drive_with_mbr(args, empty_mbr, 1);
-    setup_pci_bridge(args, "pcie.0", "br");
-    add_scsi_controller(args, "lsi53c895a", "br", 3);
+    setup_pci_bridge(args, "pcie-pci-br");
+    add_scsi_controller(args, "lsi53c895a", "pcie-pci-br", 3);
     add_scsi_disk(args, 0, 0, 0, 0, 0, 10000, 120, 30);
     add_scsi_disk(args, 1, 0, 0, 1, 0, 9000, 120, 30);
     add_scsi_disk(args, 2, 0, 0, 2, 0, 1, 0, 0);
@@ -868,9 +866,9 @@ static void test_override_virtio_blk_q35(void)
     };
     add_drive_with_mbr(args, empty_mbr, 1);
     add_drive_with_mbr(args, empty_mbr, 1);
-    setup_pci_bridge(args, "pcie.0", "br");
-    add_virtio_disk(args, 0, "br", 3, 10000, 120, 30);
-    add_virtio_disk(args, 1, "br", 4, 9000, 120, 30);
+    setup_pci_bridge(args, "pcie-pci-br");
+    add_virtio_disk(args, 0, "pcie-pci-br", 3, 10000, 120, 30);
+    add_virtio_disk(args, 1, "pcie-pci-br", 4, 9000, 120, 30);
     test_override(args, "q35", expected);
 }
 
-- 
2.39.1



  parent reply	other threads:[~2023-06-26 13:54 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-26 13:53 [PATCH v4 0/5] test and QEMU fixes to ensure proper PCIE device usage Ani Sinha
2023-06-26 13:53 ` [PATCH v4 1/5] tests/acpi: allow changes in DSDT.noacpihp table blob Ani Sinha
2023-06-26 13:53 ` [PATCH v4 2/5] tests/acpi/bios-tables-test: use the correct slot on the pcie-root-port Ani Sinha
2023-06-26 13:53 ` [PATCH v4 3/5] tests/acpi/bios-tables-test: update acpi blob q35/DSDT.noacpihp Ani Sinha
2023-06-26 13:53 ` Ani Sinha [this message]
2023-06-26 14:22   ` [PATCH v4 4/5] tests/qtest/hd-geo-test: fix incorrect pcie-root-port usage and simplify test Igor Mammedov
2023-06-26 16:03     ` Ani Sinha
2023-06-26 13:53 ` [PATCH v4 5/5] hw/pci: ensure PCIE devices are plugged into only slot 0 of PCIE port Ani Sinha
2023-06-26 13:54 ` [PATCH v4 0/5] test and QEMU fixes to ensure proper PCIE device usage Michael S. Tsirkin
2023-06-26 13:56   ` Ani Sinha
2023-06-26 13:59     ` Ani Sinha
2023-06-26 15:35       ` Michael S. Tsirkin

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