diff options
Diffstat (limited to 'arch/x86/xen/platform-pci-unplug.c')
| -rw-r--r-- | arch/x86/xen/platform-pci-unplug.c | 39 |
1 files changed, 16 insertions, 23 deletions
diff --git a/arch/x86/xen/platform-pci-unplug.c b/arch/x86/xen/platform-pci-unplug.c index 33a783c77d96..62ac4898df1a 100644 --- a/arch/x86/xen/platform-pci-unplug.c +++ b/arch/x86/xen/platform-pci-unplug.c @@ -1,28 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 + /****************************************************************************** * platform-pci-unplug.c * * Xen platform PCI device driver * Copyright (c) 2010, Citrix - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/init.h> #include <linux/io.h> #include <linux/export.h> +#include <xen/xen.h> #include <xen/platform_pci.h> #include "xen-ops.h" @@ -30,7 +21,6 @@ #define XEN_PLATFORM_ERR_PROTOCOL -2 #define XEN_PLATFORM_ERR_BLACKLIST -3 -#ifdef CONFIG_XEN_PVHVM /* store the value of xen_emul_unplug after the unplug is done */ static int xen_platform_pci_unplug; static int xen_emul_unplug; @@ -42,13 +32,13 @@ static int check_platform_magic(void) magic = inw(XEN_IOPORT_MAGIC); if (magic != XEN_IOPORT_MAGIC_VAL) { - printk(KERN_ERR "Xen Platform PCI: unrecognised magic value\n"); + pr_err("Xen Platform PCI: unrecognised magic value\n"); return XEN_PLATFORM_ERR_MAGIC; } protocol = inb(XEN_IOPORT_PROTOVER); - printk(KERN_DEBUG "Xen Platform PCI: I/O protocol version %d\n", + pr_debug("Xen Platform PCI: I/O protocol version %d\n", protocol); switch (protocol) { @@ -56,12 +46,12 @@ static int check_platform_magic(void) outw(XEN_IOPORT_LINUX_PRODNUM, XEN_IOPORT_PRODNUM); outl(XEN_IOPORT_LINUX_DRVVER, XEN_IOPORT_DRVVER); if (inw(XEN_IOPORT_MAGIC) != XEN_IOPORT_MAGIC_VAL) { - printk(KERN_ERR "Xen Platform: blacklisted by host\n"); + pr_err("Xen Platform: blacklisted by host\n"); return XEN_PLATFORM_ERR_BLACKLIST; } break; default: - printk(KERN_WARNING "Xen Platform PCI: unknown I/O protocol version\n"); + pr_warn("Xen Platform PCI: unknown I/O protocol version\n"); return XEN_PLATFORM_ERR_PROTOCOL; } @@ -146,6 +136,10 @@ void xen_unplug_emulated_devices(void) { int r; + /* PVH guests don't have emulated devices. */ + if (xen_pvh_domain()) + return; + /* user explicitly requested no unplug */ if (xen_emul_unplug & XEN_UNPLUG_NEVER) return; @@ -163,12 +157,12 @@ void xen_unplug_emulated_devices(void) * been compiled for this kernel (modules or built-in are both OK). */ if (!xen_emul_unplug) { if (xen_must_unplug_nics()) { - printk(KERN_INFO "Netfront and the Xen platform PCI driver have " + pr_info("Netfront and the Xen platform PCI driver have " "been compiled for this kernel: unplug emulated NICs.\n"); xen_emul_unplug |= XEN_UNPLUG_ALL_NICS; } if (xen_must_unplug_disks()) { - printk(KERN_INFO "Blkfront and the Xen platform PCI driver have " + pr_info("Blkfront and the Xen platform PCI driver have " "been compiled for this kernel: unplug emulated disks.\n" "You might have to change the root device\n" "from /dev/hd[a-d] to /dev/xvd[a-d]\n" @@ -208,10 +202,9 @@ static int __init parse_xen_emul_unplug(char *arg) else if (!strncmp(p, "never", l)) xen_emul_unplug |= XEN_UNPLUG_NEVER; else - printk(KERN_WARNING "unrecognised option '%s' " + pr_warn("unrecognised option '%s' " "in parameter 'xen_emul_unplug'\n", p); } return 0; } early_param("xen_emul_unplug", parse_xen_emul_unplug); -#endif |