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131 lines
3.9 KiB
131 lines
3.9 KiB
From d5e0f77bd63bc767856e1922b24556ef1b123b55 Mon Sep 17 00:00:00 2001
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From: Jared Rossi <jrossi@linux.ibm.com>
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Date: Sat, 19 Oct 2024 21:29:45 -0400
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Subject: [PATCH 13/38] pc-bios/s390-ccw: Remove panics from Netboot IPL path
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Thomas Huth <thuth@redhat.com>
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RH-MergeRequest: 278: Full boot order support for s390x [Centos 10]
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RH-Jira: RHEL-58153
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RH-Acked-by: Cédric Le Goater <clg@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [12/23] 26920462eca8a2e6d443c811efa69023fbe4f31f (thuth/qemu-kvm-cs9)
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Remove panic-on-error from Netboot specific functions so that error recovery
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may be possible in the future.
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Functions that would previously panic now provide a return code.
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Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Message-ID: <20241020012953.1380075-12-jrossi@linux.ibm.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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(cherry picked from commit f1a2a6e41ef76e02ddc5ede3dd042ef96b4fb8d2)
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---
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pc-bios/s390-ccw/bootmap.c | 1 +
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pc-bios/s390-ccw/netmain.c | 17 +++++++++++------
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pc-bios/s390-ccw/s390-ccw.h | 2 +-
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pc-bios/s390-ccw/virtio-net.c | 7 +++++--
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4 files changed, 18 insertions(+), 9 deletions(-)
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diff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c
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index 652807a16a..95ef9104d0 100644
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--- a/pc-bios/s390-ccw/bootmap.c
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+++ b/pc-bios/s390-ccw/bootmap.c
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@@ -1072,6 +1072,7 @@ void zipl_load(void)
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if (virtio_get_device_type() == VIRTIO_ID_NET) {
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netmain();
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+ panic("\n! Cannot IPL from this network !\n");
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}
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if (ipl_scsi()) {
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diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
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index bc6ad8695f..d1a6c9a91c 100644
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--- a/pc-bios/s390-ccw/netmain.c
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+++ b/pc-bios/s390-ccw/netmain.c
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@@ -464,7 +464,7 @@ static bool find_net_dev(Schib *schib, int dev_no)
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return false;
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}
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-static void virtio_setup(void)
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+static bool virtio_setup(void)
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{
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Schib schib;
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int ssid;
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@@ -495,10 +495,10 @@ static void virtio_setup(void)
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}
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}
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- IPL_assert(found, "No virtio net device found");
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+ return found;
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}
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-void netmain(void)
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+int netmain(void)
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{
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filename_ip_t fn_ip;
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int rc, fnlen;
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@@ -506,11 +506,15 @@ void netmain(void)
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sclp_setup();
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puts("Network boot starting...");
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- virtio_setup();
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+ if (!virtio_setup()) {
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+ puts("No virtio net device found.");
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+ return -1;
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+ }
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rc = net_init(&fn_ip);
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if (rc) {
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- panic("Network initialization failed. Halting.");
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+ puts("Network initialization failed.");
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+ return -1;
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}
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fnlen = strlen(fn_ip.filename);
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@@ -528,5 +532,6 @@ void netmain(void)
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jump_to_low_kernel();
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}
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- panic("Failed to load OS from network.");
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+ puts("Failed to load OS from network.");
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+ return -1;
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}
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diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h
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index 3e844abd71..344ad15655 100644
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--- a/pc-bios/s390-ccw/s390-ccw.h
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+++ b/pc-bios/s390-ccw/s390-ccw.h
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@@ -57,7 +57,7 @@ unsigned int get_loadparm_index(void);
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void main(void);
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/* netmain.c */
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-void netmain(void);
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+int netmain(void);
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/* sclp.c */
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void sclp_print(const char *string);
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diff --git a/pc-bios/s390-ccw/virtio-net.c b/pc-bios/s390-ccw/virtio-net.c
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index 2fcb0a58c5..f9854a22c3 100644
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--- a/pc-bios/s390-ccw/virtio-net.c
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+++ b/pc-bios/s390-ccw/virtio-net.c
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@@ -54,8 +54,11 @@ int virtio_net_init(void *mac_addr)
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vdev->guest_features[0] = VIRTIO_NET_F_MAC_BIT;
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virtio_setup_ccw(vdev);
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- IPL_assert(vdev->guest_features[0] & VIRTIO_NET_F_MAC_BIT,
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- "virtio-net device does not support the MAC address feature");
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+ if (!(vdev->guest_features[0] & VIRTIO_NET_F_MAC_BIT)) {
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+ puts("virtio-net device does not support the MAC address feature");
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+ return -1;
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+ }
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+
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memcpy(mac_addr, vdev->config.net.mac, ETH_ALEN);
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for (i = 0; i < 64; i++) {
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--
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2.39.3
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