xen: features and fixes for 4.6-rc0
- Make earlyprintk=xen work for HVM guests. - Remove module support for things never built as modules. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJW8YhlAAoJEFxbo/MsZsTRiCgH/3GnL93s/BsRTrA/DYykYqA4 rPPkDd6WMlEbrko6FY7o4IxUAZ50LWU8wjmDNVTT+R/VKlWCVh2+ksxjbH8e0nzr 0QohAYTdG1VGmhkrwTjKj0wC3Nr8vaDqoBXAFRz4DiQdbobn12wzXjaVrbl8RRNc oHDqR+DfZj6ontqx8oFkkTk7CFKIGEOtm/uBhCAV2fNkQSUCzuQyKLlarxM6jq/2 EnLR1bhnyoy5zNFzXxmaJgZOit8QFMKvPdDRknlp9yDHYJ5zolJkv+6FPiAG6SZs A8yAUPQoAD+ekAiV2DIhb8qoNNNdZXdRCFBpoudwX3GyyU4O2P5Intl0xEg17Nk= =L8S4 -----END PGP SIGNATURE----- Merge tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from David Vrabel: "Features and fixes for 4.6: - Make earlyprintk=xen work for HVM guests - Remove module support for things never built as modules" * tag 'for-linus-4.6-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: drivers/xen: make platform-pci.c explicitly non-modular drivers/xen: make sys-hypervisor.c explicitly non-modular drivers/xen: make xenbus_dev_[front/back]end explicitly non-modular drivers/xen: make [xen-]ballon explicitly non-modular xen: audit usages of module.h ; remove unnecessary instances xen/x86: Drop mode-selecting ifdefs in startup_xen() xen/x86: Zero out .bss for PV guests hvc_xen: make early_printk work with HVM guests hvc_xen: fix xenboot for DomUs hvc_xen: add earlycon support
This commit is contained in:
Коммит
55fc733c7e
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@ -33,6 +33,8 @@
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#ifndef _ASM_ARM_XEN_HYPERCALL_H
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#define _ASM_ARM_XEN_HYPERCALL_H
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#include <linux/bug.h>
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#include <xen/interface/xen.h>
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#include <xen/interface/sched.h>
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#include <xen/interface/platform.h>
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@ -38,13 +38,18 @@
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__INIT
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ENTRY(startup_xen)
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cld
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#ifdef CONFIG_X86_32
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mov %esi,xen_start_info
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mov $init_thread_union+THREAD_SIZE,%esp
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#else
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mov %rsi,xen_start_info
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mov $init_thread_union+THREAD_SIZE,%rsp
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#endif
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/* Clear .bss */
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xor %eax,%eax
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mov $__bss_start, %_ASM_DI
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mov $__bss_stop, %_ASM_CX
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sub %_ASM_DI, %_ASM_CX
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shr $__ASM_SEL(2, 3), %_ASM_CX
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rep __ASM_SIZE(stos)
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mov %_ASM_SI, xen_start_info
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mov $init_thread_union+THREAD_SIZE, %_ASM_SP
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jmp xen_start_kernel
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__FINIT
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@ -25,6 +25,7 @@
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/serial_core.h>
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#include <asm/io.h>
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#include <asm/xen/hypervisor.h>
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@ -245,6 +246,18 @@ err:
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return -ENODEV;
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}
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static int xencons_info_pv_init(struct xencons_info *info, int vtermno)
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{
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info->evtchn = xen_start_info->console.domU.evtchn;
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/* GFN == MFN for PV guest */
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info->intf = gfn_to_virt(xen_start_info->console.domU.mfn);
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info->vtermno = vtermno;
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list_add_tail(&info->list, &xenconsoles);
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return 0;
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}
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static int xen_pv_console_init(void)
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{
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struct xencons_info *info;
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@ -264,13 +277,8 @@ static int xen_pv_console_init(void)
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/* already configured */
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return 0;
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}
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info->evtchn = xen_start_info->console.domU.evtchn;
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/* GFN == MFN for PV guest */
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info->intf = gfn_to_virt(xen_start_info->console.domU.mfn);
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info->vtermno = HVC_COOKIE;
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spin_lock(&xencons_lock);
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list_add_tail(&info->list, &xenconsoles);
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xencons_info_pv_init(info, HVC_COOKIE);
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spin_unlock(&xencons_lock);
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return 0;
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@ -597,15 +605,39 @@ static int xen_cons_init(void)
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}
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console_initcall(xen_cons_init);
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#ifdef CONFIG_X86
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static void xen_hvm_early_write(uint32_t vtermno, const char *str, int len)
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{
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if (xen_cpuid_base())
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outsb(0xe9, str, len);
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}
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#else
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static void xen_hvm_early_write(uint32_t vtermno, const char *str, int len) { }
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#endif
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#ifdef CONFIG_EARLY_PRINTK
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static int __init xenboot_setup_console(struct console *console, char *string)
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{
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static struct xencons_info xenboot;
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if (xen_initial_domain())
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return 0;
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if (!xen_pv_domain())
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return -ENODEV;
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return xencons_info_pv_init(&xenboot, 0);
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}
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static void xenboot_write_console(struct console *console, const char *string,
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unsigned len)
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{
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unsigned int linelen, off = 0;
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const char *pos;
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if (!xen_pv_domain())
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if (!xen_pv_domain()) {
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xen_hvm_early_write(0, string, len);
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return;
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}
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dom0_write_console(0, string, len);
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@ -628,6 +660,7 @@ static void xenboot_write_console(struct console *console, const char *string,
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struct console xenboot_console = {
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.name = "xenboot",
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.write = xenboot_write_console,
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.setup = xenboot_setup_console,
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.flags = CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
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.index = -1,
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};
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@ -640,17 +673,10 @@ void xen_raw_console_write(const char *str)
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if (xen_domain()) {
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rc = dom0_write_console(0, str, len);
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#ifdef CONFIG_X86
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if (rc == -ENOSYS && xen_hvm_domain())
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goto outb_print;
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} else if (xen_cpuid_base()) {
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int i;
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outb_print:
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for (i = 0; i < len; i++)
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outb(str[i], 0xe9);
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#endif
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if (rc != -ENOSYS || !xen_hvm_domain())
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return;
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}
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xen_hvm_early_write(0, str, len);
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}
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void xen_raw_printk(const char *fmt, ...)
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@ -664,3 +690,18 @@ void xen_raw_printk(const char *fmt, ...)
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xen_raw_console_write(buf);
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}
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static void xenboot_earlycon_write(struct console *console,
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const char *string,
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unsigned len)
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{
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dom0_write_console(0, string, len);
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}
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static int __init xenboot_earlycon_setup(struct earlycon_device *device,
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const char *opt)
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{
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device->con->write = xenboot_earlycon_write;
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return 0;
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}
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EARLYCON_DECLARE(xenboot, xenboot_earlycon_setup);
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|
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@ -42,7 +42,6 @@
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/errno.h>
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#include <linux/module.h>
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#include <linux/mm.h>
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#include <linux/bootmem.h>
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#include <linux/pagemap.h>
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@ -760,7 +759,4 @@ static int __init balloon_init(void)
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return 0;
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}
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subsys_initcall(balloon_init);
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MODULE_LICENSE("GPL");
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@ -9,7 +9,6 @@
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#include <linux/linkage.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <asm/sync_bitops.h>
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#include <asm/xen/hypercall.h>
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@ -26,7 +26,7 @@
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#include <linux/linkage.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/string.h>
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#include <linux/bootmem.h>
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#include <linux/slab.h>
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|
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@ -36,7 +36,6 @@
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#include <linux/linkage.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <linux/smp.h>
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#include <linux/percpu.h>
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#include <linux/cpu.h>
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|
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@ -7,7 +7,7 @@
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*/
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#include <linux/types.h>
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#include <linux/cache.h>
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#include <linux/module.h>
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#include <linux/export.h>
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#include <asm/xen/hypercall.h>
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@ -33,7 +33,6 @@
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#define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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|
|
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@ -2,6 +2,9 @@
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* platform-pci.c
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*
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* Xen platform PCI device driver
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*
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* Authors: ssmith@xensource.com and stefano.stabellini@eu.citrix.com
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*
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* Copyright (c) 2005, Intel Corporation.
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* Copyright (c) 2007, XenSource Inc.
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* Copyright (c) 2010, Citrix
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@ -24,7 +27,7 @@
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <xen/platform_pci.h>
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@ -36,10 +39,6 @@
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#define DRV_NAME "xen-platform-pci"
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MODULE_AUTHOR("ssmith@xensource.com and stefano.stabellini@eu.citrix.com");
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MODULE_DESCRIPTION("Xen platform PCI device");
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MODULE_LICENSE("GPL");
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static unsigned long platform_mmio;
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static unsigned long platform_mmio_alloc;
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static unsigned long platform_mmiolen;
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@ -101,8 +100,8 @@ static int platform_pci_resume(struct pci_dev *pdev)
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return 0;
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}
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static int platform_pci_init(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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static int platform_pci_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent)
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{
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int i, ret;
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long ioaddr;
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|
@ -181,20 +180,17 @@ static struct pci_device_id platform_pci_tbl[] = {
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, platform_pci_tbl);
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static struct pci_driver platform_driver = {
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.name = DRV_NAME,
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.probe = platform_pci_init,
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.probe = platform_pci_probe,
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.id_table = platform_pci_tbl,
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#ifdef CONFIG_PM
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.resume_early = platform_pci_resume,
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#endif
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};
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static int __init platform_pci_module_init(void)
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static int __init platform_pci_init(void)
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{
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return pci_register_driver(&platform_driver);
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}
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|
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module_init(platform_pci_module_init);
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device_initcall(platform_pci_init);
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|
|
|
@ -9,7 +9,7 @@
|
|||
|
||||
#include <linux/slab.h>
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#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kobject.h>
|
||||
#include <linux/err.h>
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||||
|
||||
|
@ -50,11 +50,6 @@ static int __init xen_sysfs_type_init(void)
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|||
return sysfs_create_file(hypervisor_kobj, &type_attr.attr);
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||||
}
|
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|
||||
static void xen_sysfs_type_destroy(void)
|
||||
{
|
||||
sysfs_remove_file(hypervisor_kobj, &type_attr.attr);
|
||||
}
|
||||
|
||||
/* xen version attributes */
|
||||
static ssize_t major_show(struct hyp_sysfs_attr *attr, char *buffer)
|
||||
{
|
||||
|
@ -111,11 +106,6 @@ static int __init xen_sysfs_version_init(void)
|
|||
return sysfs_create_group(hypervisor_kobj, &version_group);
|
||||
}
|
||||
|
||||
static void xen_sysfs_version_destroy(void)
|
||||
{
|
||||
sysfs_remove_group(hypervisor_kobj, &version_group);
|
||||
}
|
||||
|
||||
/* UUID */
|
||||
|
||||
static ssize_t uuid_show_fallback(struct hyp_sysfs_attr *attr, char *buffer)
|
||||
|
@ -157,11 +147,6 @@ static int __init xen_sysfs_uuid_init(void)
|
|||
return sysfs_create_file(hypervisor_kobj, &uuid_attr.attr);
|
||||
}
|
||||
|
||||
static void xen_sysfs_uuid_destroy(void)
|
||||
{
|
||||
sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr);
|
||||
}
|
||||
|
||||
/* xen compilation attributes */
|
||||
|
||||
static ssize_t compiler_show(struct hyp_sysfs_attr *attr, char *buffer)
|
||||
|
@ -235,11 +220,6 @@ static int __init xen_compilation_init(void)
|
|||
return sysfs_create_group(hypervisor_kobj, &xen_compilation_group);
|
||||
}
|
||||
|
||||
static void xen_compilation_destroy(void)
|
||||
{
|
||||
sysfs_remove_group(hypervisor_kobj, &xen_compilation_group);
|
||||
}
|
||||
|
||||
/* xen properties info */
|
||||
|
||||
static ssize_t capabilities_show(struct hyp_sysfs_attr *attr, char *buffer)
|
||||
|
@ -366,11 +346,6 @@ static int __init xen_properties_init(void)
|
|||
return sysfs_create_group(hypervisor_kobj, &xen_properties_group);
|
||||
}
|
||||
|
||||
static void xen_properties_destroy(void)
|
||||
{
|
||||
sysfs_remove_group(hypervisor_kobj, &xen_properties_group);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XEN_HAVE_VPMU
|
||||
struct pmu_mode {
|
||||
const char *name;
|
||||
|
@ -484,11 +459,6 @@ static int __init xen_pmu_init(void)
|
|||
{
|
||||
return sysfs_create_group(hypervisor_kobj, &xen_pmu_group);
|
||||
}
|
||||
|
||||
static void xen_pmu_destroy(void)
|
||||
{
|
||||
sysfs_remove_group(hypervisor_kobj, &xen_pmu_group);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int __init hyper_sysfs_init(void)
|
||||
|
@ -517,7 +487,8 @@ static int __init hyper_sysfs_init(void)
|
|||
if (xen_initial_domain()) {
|
||||
ret = xen_pmu_init();
|
||||
if (ret) {
|
||||
xen_properties_destroy();
|
||||
sysfs_remove_group(hypervisor_kobj,
|
||||
&xen_properties_group);
|
||||
goto prop_out;
|
||||
}
|
||||
}
|
||||
|
@ -525,31 +496,17 @@ static int __init hyper_sysfs_init(void)
|
|||
goto out;
|
||||
|
||||
prop_out:
|
||||
xen_sysfs_uuid_destroy();
|
||||
sysfs_remove_file(hypervisor_kobj, &uuid_attr.attr);
|
||||
uuid_out:
|
||||
xen_compilation_destroy();
|
||||
sysfs_remove_group(hypervisor_kobj, &xen_compilation_group);
|
||||
comp_out:
|
||||
xen_sysfs_version_destroy();
|
||||
sysfs_remove_group(hypervisor_kobj, &version_group);
|
||||
version_out:
|
||||
xen_sysfs_type_destroy();
|
||||
sysfs_remove_file(hypervisor_kobj, &type_attr.attr);
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void __exit hyper_sysfs_exit(void)
|
||||
{
|
||||
#ifdef CONFIG_XEN_HAVE_VPMU
|
||||
xen_pmu_destroy();
|
||||
#endif
|
||||
xen_properties_destroy();
|
||||
xen_compilation_destroy();
|
||||
xen_sysfs_uuid_destroy();
|
||||
xen_sysfs_version_destroy();
|
||||
xen_sysfs_type_destroy();
|
||||
|
||||
}
|
||||
module_init(hyper_sysfs_init);
|
||||
module_exit(hyper_sysfs_exit);
|
||||
device_initcall(hyper_sysfs_init);
|
||||
|
||||
static ssize_t hyp_sysfs_show(struct kobject *kobj,
|
||||
struct attribute *attr,
|
||||
|
|
|
@ -33,7 +33,9 @@
|
|||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/mm_types.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/capability.h>
|
||||
|
||||
#include <xen/xen.h>
|
||||
|
@ -109,14 +111,6 @@ static int __init balloon_init(void)
|
|||
}
|
||||
subsys_initcall(balloon_init);
|
||||
|
||||
static void balloon_exit(void)
|
||||
{
|
||||
/* XXX - release balloon here */
|
||||
return;
|
||||
}
|
||||
|
||||
module_exit(balloon_exit);
|
||||
|
||||
#define BALLOON_SHOW(name, format, args...) \
|
||||
static ssize_t show_##name(struct device *dev, \
|
||||
struct device_attribute *attr, \
|
||||
|
@ -250,5 +244,3 @@ static int register_balloon(struct device *dev)
|
|||
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
|
@ -10,7 +10,7 @@
|
|||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/moduleparam.h>
|
||||
#include <linux/pci.h>
|
||||
#include "pciback.h"
|
||||
#include "conf_space.h"
|
||||
|
|
|
@ -6,7 +6,7 @@
|
|||
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/moduleparam.h>
|
||||
#include <linux/wait.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <xen/events.h>
|
||||
|
|
|
@ -6,7 +6,7 @@
|
|||
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/moduleparam.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/vmalloc.h>
|
||||
|
|
|
@ -71,7 +71,6 @@
|
|||
#include <linux/swap.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/mman.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/device.h>
|
||||
#include <xen/balloon.h>
|
||||
|
|
|
@ -5,7 +5,7 @@
|
|||
#include <linux/mm.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/miscdevice.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/capability.h>
|
||||
|
||||
#include <xen/xen.h>
|
||||
|
@ -18,8 +18,6 @@
|
|||
|
||||
#include "xenbus_comms.h"
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
static int xenbus_backend_open(struct inode *inode, struct file *filp)
|
||||
{
|
||||
if (!capable(CAP_SYS_ADMIN))
|
||||
|
@ -132,11 +130,4 @@ static int __init xenbus_backend_init(void)
|
|||
pr_err("Could not register xenbus backend device\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit xenbus_backend_exit(void)
|
||||
{
|
||||
misc_deregister(&xenbus_backend_dev);
|
||||
}
|
||||
|
||||
module_init(xenbus_backend_init);
|
||||
module_exit(xenbus_backend_exit);
|
||||
device_initcall(xenbus_backend_init);
|
||||
|
|
|
@ -55,7 +55,7 @@
|
|||
#include <linux/string.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/miscdevice.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
#include "xenbus_comms.h"
|
||||
|
||||
|
@ -63,8 +63,6 @@
|
|||
#include <xen/xen.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
/*
|
||||
* An element of a list of outstanding transactions, for which we're
|
||||
* still waiting a reply.
|
||||
|
@ -626,11 +624,4 @@ static int __init xenbus_init(void)
|
|||
pr_err("Could not register xenbus frontend device\n");
|
||||
return err;
|
||||
}
|
||||
|
||||
static void __exit xenbus_exit(void)
|
||||
{
|
||||
misc_deregister(&xenbus_dev);
|
||||
}
|
||||
|
||||
module_init(xenbus_init);
|
||||
module_exit(xenbus_exit);
|
||||
device_initcall(xenbus_init);
|
||||
|
|
|
@ -44,7 +44,6 @@
|
|||
#include <linux/fcntl.h>
|
||||
#include <linux/kthread.h>
|
||||
#include <linux/rwsem.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <asm/xen/hypervisor.h>
|
||||
#include <xen/xenbus.h>
|
||||
|
|
|
@ -1,4 +1,3 @@
|
|||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/seq_file.h>
|
||||
#include <linux/fs.h>
|
||||
|
|
Загрузка…
Ссылка в новой задаче