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[Xen-devel] PCI passthrough test script

Hi,

I am kind of hoping that others have something a bit better that
they are sitting on, but the following rough and ready script
has helped me to test for PCI pass-through problems and
reduce regrssions in my recent patches.

#!/bin/sh

set -e

RETRY=5
TIMEOUT=15

try_quiet ()
{
        "$@"
        status=$?

        if [ $status != 0 ]; then
                echo "failed:   non-zero status" >&2
                echo "status:   $status" >&2
                exit 1
        fi

        return 0
}

try ()
{
        echo "# $@"
        try_quiet "$@"
}

log_value ()
{
        key="$1"; shift
        val="$1"; shift

        if [ $(echo -n "$val" | wc -l ) -gt 1 ]; then
                echo "--- begin $key ---"
                echo "$val"
                echo "--- end $key ---"
        else
                echo "$key: \"$val\""
        fi
}

expect ()
{
        expect="$1"; shift

        echo "# $@"
        result=$(try_quiet "$@")

        if [ "$expect" != "$result" ]; then
                echo "failed: output missmatch" >&2
                log_value "expected" "$expect" >&2
                log_value "received" "$result" >&2
                exit 1
        fi

        #if [ "$result" != "" ]; then
        #    echo "$result"
        #fi
        return 0
}

#sudo xm list | fgrep Domain-0 | cut -c 64-69

domain_exists ()
{
        domain="$1"

        text=$(sudo xm list | fgrep "$domain" || true)
        if [ -z "$text" ]; then
                return 1
        fi

        return 0
}

domain_booted ()
{
        domain="$1"

        text=$(sudo xm list | fgrep "$domain" || true)
        if [ -z "$text" ]; then
                return 1
        fi
        state=$(echo "$text" | cut -c 64-69)
        if [ "$state" != "-b----" ]; then
                return 1
        fi

        return 0
}

xm_destroy ()
{
        domain="$1"

        if ! domain_exists "$domain"; then
                return 0
        fi

        try sudo xm destroy "$domain"
}

xm_delete ()
{
        domain="$1"

        if ! domain_exists "$domain"; then
                return 0
        fi

        try sudo xm delete "$domain"
}

xm_delete ()
{
        domain="$1"

        if ! domain_exists "$domain"; then
                return 0
        fi

        try sudo xm delete "$domain"
}

xm_create ()
{
        domain="$1"; shift
        conf="$1"; shift
        timeout="$1"; shift

        echo -n "# sudo xm create $conf"
        try_quiet sudo xm create "$conf" > /dev/null

        while [ $timeout -gt 0 ]; do
                if domain_booted "$domain"; then
                        echo
                        return 0
                fi
                timeout=$(( $timeout - 1 ))
                echo -n "."
                sleep 1
        done

        echo "timeout" >&2
        return 1

}

xm_start ()
{
        domain="$1"; shift
        timeout="$1"; shift

        echo -n "# sudo xm start $domain"
        try_quiet sudo xm start "$domain"

        while [ $timeout -gt 0 ]; do
                if domain_booted "$domain"; then
                        echo
                        return 0
                fi
                timeout=$(( $timeout - 1 ))
                echo -n "."
                sleep 1
        done

        echo "timeout" >&2
        return 1

}

xm_new ()
{
        conf="$1"; shift

        echo "# sudo xm new $conf"
        try_quiet sudo xm new "$conf" > /dev/null
}

CONF="/home/horms/projects/xen/xen-config/x86_64/hvm/conf/debian-unstable-hvm-1.conf"
TEST=0

#############################################################################

TEST=$(($TEST + 1));
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_create "debian" "$CONF" "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm destroy debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_destroy debian
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_destroy debian
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

TEST=$(($TEST + 1))
ATTEMPT=0
STATUS="fail"
for i in $(seq $RETRY); do
        ATTEMPT=$(($ATTEMPT + 1));
        echo "Test $TEST, Attempt $ATTEMPT"

        xm_destroy debian
        xm_delete debian

        xm_new "$CONF"
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0
        expect "VSlt domain bus  slot func
-    0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
-    0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x05 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        expect "" sudo xm pci-attach debian 00:1d.0 b
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        xm_start debian "$TIMEOUT" || continue
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1
0x0b 0x0000 0x00 0x1d 0x0" sudo xm pci-list debian

        expect "" sudo xm pci-detach debian 00:1d.0
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        expect "VSlt domain bus  slot func
0x04 0x0000 0x01 0x00 0x0
0x07 0x0000 0x01 0x00 0x1" sudo xm pci-list debian

        xm_destroy debian
        xm_delete debian

        STATUS="ok"
        break
done

if [ "$STATUS" != "ok" ]; then
        exit 1
fi

#############################################################################

echo OK\!

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