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[PATCH v2 10/70] xen: CFI hardening for __initcall()

To: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>

From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Date: Mon, 14 Feb 2022 12:50:27 +0000

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Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Delivery-date: Mon, 14 Feb 2022 13:06:13 +0000

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List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Control Flow Integrity schemes use toolchain and optionally hardware support to help protect against call/jump/return oriented programming attacks. Use cf_check to annotate function pointer targets for the toolchain. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> Acked-by: Jan Beulich <jbeulich@xxxxxxxx> --- xen/arch/x86/acpi/cpu_idle.c | 4 ++-- xen/arch/x86/acpi/cpufreq/cpufreq.c | 2 +- xen/arch/x86/cpu/mcheck/non-fatal.c | 2 +- xen/arch/x86/cpu/microcode/core.c | 2 +- xen/arch/x86/cpu/mtrr/main.c | 2 +- xen/arch/x86/cpu/vpmu.c | 2 +- xen/arch/x86/domain.c | 2 +- xen/arch/x86/extable.c | 2 +- xen/arch/x86/hvm/hvm.c | 4 ++-- xen/arch/x86/hvm/irq.c | 2 +- xen/arch/x86/hvm/mtrr.c | 2 +- xen/arch/x86/hvm/nestedhvm.c | 3 +-- xen/arch/x86/hvm/quirks.c | 2 +- xen/arch/x86/include/asm/hvm/save.h | 2 +- xen/arch/x86/ioport_emulate.c | 4 ++-- xen/arch/x86/irq.c | 4 ++-- xen/arch/x86/mm/shadow/common.c | 4 ++-- xen/arch/x86/msi.c | 2 +- xen/arch/x86/nmi.c | 2 +- xen/arch/x86/numa.c | 2 +- xen/arch/x86/oprofile/nmi_int.c | 2 +- xen/arch/x86/percpu.c | 2 +- xen/arch/x86/psr.c | 2 +- xen/arch/x86/pv/domain.c | 2 +- xen/arch/x86/shutdown.c | 2 +- xen/arch/x86/time.c | 8 ++++---- xen/common/core_parking.c | 2 +- xen/common/debugtrace.c | 2 +- xen/common/event_channel.c | 2 +- xen/common/gdbstub.c | 2 +- xen/common/grant_table.c | 2 +- xen/common/kernel.c | 4 ++-- xen/common/kexec.c | 2 +- xen/common/livepatch.c | 2 +- xen/common/page_alloc.c | 4 ++-- xen/common/radix-tree.c | 2 +- xen/common/random.c | 2 +- xen/common/sched/cpupool.c | 2 +- xen/common/spinlock.c | 2 +- xen/common/stop_machine.c | 2 +- xen/drivers/cpufreq/cpufreq.c | 2 +- xen/drivers/cpufreq/cpufreq_misc_governors.c | 6 +++--- xen/drivers/cpufreq/cpufreq_ondemand.c | 2 +- xen/drivers/passthrough/amd/iommu.h | 2 +- xen/drivers/passthrough/amd/iommu_init.c | 2 +- xen/drivers/passthrough/pci.c | 2 +- xen/drivers/passthrough/vtd/iommu.c | 2 +- xen/drivers/passthrough/x86/hvm.c | 2 +- 48 files changed, 60 insertions(+), 61 deletions(-) diff --git a/xen/arch/x86/acpi/cpu_idle.c b/xen/arch/x86/acpi/cpu_idle.c index 5d73eb5917af..7902ccce6b98 100644 --- a/xen/arch/x86/acpi/cpu_idle.c +++ b/xen/arch/x86/acpi/cpu_idle.c @@ -410,7 +410,7 @@ static void dump_cx(unsigned char key) } } -static int __init cpu_idle_key_init(void) +static int __init cf_check cpu_idle_key_init(void) { register_keyhandler('c', dump_cx, "dump ACPI Cx structures", 1); return 0; @@ -1655,7 +1655,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback }; -static int __init cpuidle_presmp_init(void) +static int __init cf_check cpuidle_presmp_init(void) { void *cpu = (void *)(long)smp_processor_id(); diff --git a/xen/arch/x86/acpi/cpufreq/cpufreq.c b/xen/arch/x86/acpi/cpufreq/cpufreq.c index 029c9398c42a..9510f05340aa 100644 --- a/xen/arch/x86/acpi/cpufreq/cpufreq.c +++ b/xen/arch/x86/acpi/cpufreq/cpufreq.c @@ -630,7 +630,7 @@ static const struct cpufreq_driver __initconstrel acpi_cpufreq_driver = { .exit = acpi_cpufreq_cpu_exit, }; -static int __init cpufreq_driver_init(void) +static int __init cf_check cpufreq_driver_init(void) { int ret = 0; diff --git a/xen/arch/x86/cpu/mcheck/non-fatal.c b/xen/arch/x86/cpu/mcheck/non-fatal.c index ec52d37c96e1..2679c220a8a2 100644 --- a/xen/arch/x86/cpu/mcheck/non-fatal.c +++ b/xen/arch/x86/cpu/mcheck/non-fatal.c @@ -86,7 +86,7 @@ static void mce_work_fn(void *data) adjust = 0; } -static int __init init_nonfatal_mce_checker(void) +static int __init cf_check init_nonfatal_mce_checker(void) { struct cpuinfo_x86 *c = &boot_cpu_data; diff --git a/xen/arch/x86/cpu/microcode/core.c b/xen/arch/x86/cpu/microcode/core.c index 95d35ca0f3f7..46f55fe7f191 100644 --- a/xen/arch/x86/cpu/microcode/core.c +++ b/xen/arch/x86/cpu/microcode/core.c @@ -696,7 +696,7 @@ int microcode_update(XEN_GUEST_HANDLE(const_void) buf, unsigned long len) microcode_update_helper, buffer); } -static int __init microcode_init(void) +static int __init cf_check microcode_init(void) { /* * At this point, all CPUs should have updated their microcode diff --git a/xen/arch/x86/cpu/mtrr/main.c b/xen/arch/x86/cpu/mtrr/main.c index e9df53f00d61..428133100d46 100644 --- a/xen/arch/x86/cpu/mtrr/main.c +++ b/xen/arch/x86/cpu/mtrr/main.c @@ -632,7 +632,7 @@ void mtrr_bp_restore(void) mtrr_if->set_all(); } -static int __init mtrr_init_finialize(void) +static int __init cf_check mtrr_init_finialize(void) { if (!mtrr_if) return 0; diff --git a/xen/arch/x86/cpu/vpmu.c b/xen/arch/x86/cpu/vpmu.c index b10d6e2eb458..9fc897dc8403 100644 --- a/xen/arch/x86/cpu/vpmu.c +++ b/xen/arch/x86/cpu/vpmu.c @@ -844,7 +844,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback }; -static int __init vpmu_init(void) +static int __init cf_check vpmu_init(void) { int vendor = current_cpu_data.x86_vendor; const struct arch_vpmu_ops *ops = NULL; diff --git a/xen/arch/x86/domain.c b/xen/arch/x86/domain.c index ef1812dc1402..f943283b2a88 100644 --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -2532,7 +2532,7 @@ static void vcpu_kick_softirq(void) */ } -static int __init init_vcpu_kick_softirq(void) +static int __init cf_check init_vcpu_kick_softirq(void) { open_softirq(VCPU_KICK_SOFTIRQ, vcpu_kick_softirq); return 0; diff --git a/xen/arch/x86/extable.c b/xen/arch/x86/extable.c index 78d672722580..51ef863d786c 100644 --- a/xen/arch/x86/extable.c +++ b/xen/arch/x86/extable.c @@ -126,7 +126,7 @@ search_exception_table(const struct cpu_user_regs *regs) #ifndef NDEBUG #include <asm/traps.h> -static int __init stub_selftest(void) +static int __init cf_check stub_selftest(void) { static const struct { uint8_t opc[4]; diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c index 4e685c1b0c1b..2ae1685d0aff 100644 --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -164,7 +164,7 @@ static bool __init hap_supported(struct hvm_function_table *fns) return true; } -static int __init hvm_enable(void) +static int __init cf_check hvm_enable(void) { const struct hvm_function_table *fns = NULL; @@ -1506,7 +1506,7 @@ static int hvm_load_cpu_msrs(struct domain *d, hvm_domain_context_t *h) /* We need variable length data chunks for XSAVE area and MSRs, hence * a custom declaration rather than HVM_REGISTER_SAVE_RESTORE. */ -static int __init hvm_register_CPU_save_and_restore(void) +static int __init cf_check hvm_register_CPU_save_and_restore(void) { hvm_register_savevm(CPU_XSAVE_CODE, "CPU_XSAVE", diff --git a/xen/arch/x86/hvm/irq.c b/xen/arch/x86/hvm/irq.c index 52aae4565f0c..6045c9149bad 100644 --- a/xen/arch/x86/hvm/irq.c +++ b/xen/arch/x86/hvm/irq.c @@ -650,7 +650,7 @@ static void dump_irq_info(unsigned char key) rcu_read_unlock(&domlist_read_lock); } -static int __init dump_irq_info_key_init(void) +static int __init cf_check dump_irq_info_key_init(void) { register_keyhandler('I', dump_irq_info, "dump HVM irq info", 1); return 0; diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c index 4a9f3177edd4..b3ef1bf54133 100644 --- a/xen/arch/x86/hvm/mtrr.c +++ b/xen/arch/x86/hvm/mtrr.c @@ -75,7 +75,7 @@ static uint8_t __read_mostly mtrr_epat_tbl[MTRR_NUM_TYPES][MEMORY_NUM_TYPES] = static uint8_t __read_mostly pat_entry_tbl[PAT_TYPE_NUMS] = { [0 ... PAT_TYPE_NUMS-1] = INVALID_MEM_TYPE }; -static int __init hvm_mtrr_pat_init(void) +static int __init cf_check hvm_mtrr_pat_init(void) { unsigned int i, j; diff --git a/xen/arch/x86/hvm/nestedhvm.c b/xen/arch/x86/hvm/nestedhvm.c index 5021da667a47..23516884482b 100644 --- a/xen/arch/x86/hvm/nestedhvm.c +++ b/xen/arch/x86/hvm/nestedhvm.c @@ -125,8 +125,7 @@ nestedhvm_vmcx_flushtlb(struct p2m_domain *p2m) * iomap[2] set set */ -static int __init -nestedhvm_setup(void) +static int __init cf_check nestedhvm_setup(void) { /* Same format and size as hvm_io_bitmap (Intel needs only 2 pages). */ unsigned nr = cpu_has_vmx ? 2 : 3; diff --git a/xen/arch/x86/hvm/quirks.c b/xen/arch/x86/hvm/quirks.c index 54cc66c382b6..917356b1312c 100644 --- a/xen/arch/x86/hvm/quirks.c +++ b/xen/arch/x86/hvm/quirks.c @@ -36,7 +36,7 @@ static int __init dmi_hvm_deny_port80(const struct dmi_system_id *id) return 0; } -static int __init check_port80(void) +static int __init cf_check check_port80(void) { /* * Quirk table for systems that misbehave (lock up, etc.) if port diff --git a/xen/arch/x86/include/asm/hvm/save.h b/xen/arch/x86/include/asm/hvm/save.h index 4efc53505500..e975011ddb71 100644 --- a/xen/arch/x86/include/asm/hvm/save.h +++ b/xen/arch/x86/include/asm/hvm/save.h @@ -115,7 +115,7 @@ void hvm_register_savevm(uint16_t typecode, /* Syntactic sugar around that function: specify the max number of * saves, and this calculates the size of buffer needed */ #define HVM_REGISTER_SAVE_RESTORE(_x, _save, _load, _num, _k) \ -static int __init __hvm_register_##_x##_save_and_restore(void) \ +static int __init cf_check __hvm_register_##_x##_save_and_restore(void) \ { \ hvm_register_savevm(HVM_SAVE_CODE(_x), \ #_x, \ diff --git a/xen/arch/x86/ioport_emulate.c b/xen/arch/x86/ioport_emulate.c index cf1f3f922959..6caeb3d470ce 100644 --- a/xen/arch/x86/ioport_emulate.c +++ b/xen/arch/x86/ioport_emulate.c @@ -11,7 +11,7 @@ unsigned int (*__read_mostly ioemul_handle_quirk)( uint8_t opcode, char *io_emul_stub, struct cpu_user_regs *regs); -static unsigned int ioemul_handle_proliant_quirk( +static unsigned int cf_check ioemul_handle_proliant_quirk( u8 opcode, char *io_emul_stub, struct cpu_user_regs *regs) { static const char stub[] = { @@ -100,7 +100,7 @@ static const struct dmi_system_id __initconstrel ioport_quirks_tbl[] = { { } }; -static int __init ioport_quirks_init(void) +static int __init cf_check ioport_quirks_init(void) { if ( dmi_check_system(ioport_quirks_tbl) ) ioemul_handle_quirk = ioemul_handle_proliant_quirk; diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c index 84b174d0f51f..bcf46cd54d16 100644 --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -954,7 +954,7 @@ static void irq_ratelimit_timer_fn(void *data) spin_unlock_irqrestore(&irq_ratelimit_lock, flags); } -static int __init irq_ratelimit_init(void) +static int __init cf_check irq_ratelimit_init(void) { if ( irq_ratelimit_threshold ) init_timer(&irq_ratelimit_timer, irq_ratelimit_timer_fn, NULL, 0); @@ -2504,7 +2504,7 @@ static void dump_irqs(unsigned char key) dump_ioapic_irq_info(); } -static int __init setup_dump_irqs(void) +static int __init cf_check setup_dump_irqs(void) { /* In lieu of being able to live in init_irq_data(). */ BUILD_BUG_ON(sizeof(irq_max_guests) > diff --git a/xen/arch/x86/mm/shadow/common.c b/xen/arch/x86/mm/shadow/common.c index 6221630fc2dc..b8730a9441ce 100644 --- a/xen/arch/x86/mm/shadow/common.c +++ b/xen/arch/x86/mm/shadow/common.c @@ -105,7 +105,7 @@ static void shadow_audit_key(unsigned char key) __func__, shadow_audit_enable); } -static int __init shadow_audit_key_init(void) +static int __init cf_check shadow_audit_key_init(void) { register_keyhandler('O', shadow_audit_key, "toggle shadow audits", 0); return 0; @@ -1057,7 +1057,7 @@ static void shadow_blow_all_tables(unsigned char c) } /* Register this function in the Xen console keypress table */ -static __init int shadow_blow_tables_keyhandler_init(void) +static int __init cf_check shadow_blow_tables_keyhandler_init(void) { register_keyhandler('S', shadow_blow_all_tables, "reset shadow pagetables", 1); return 0; diff --git a/xen/arch/x86/msi.c b/xen/arch/x86/msi.c index 5febc0ea4b7c..d1497254b188 100644 --- a/xen/arch/x86/msi.c +++ b/xen/arch/x86/msi.c @@ -1485,7 +1485,7 @@ static void dump_msi(unsigned char key) vpci_dump_msi(); } -static int __init msi_setup_keyhandler(void) +static int __init cf_check msi_setup_keyhandler(void) { register_keyhandler('M', dump_msi, "dump MSI state", 1); return 0; diff --git a/xen/arch/x86/nmi.c b/xen/arch/x86/nmi.c index 1a225d499295..21e947a46f24 100644 --- a/xen/arch/x86/nmi.c +++ b/xen/arch/x86/nmi.c @@ -606,7 +606,7 @@ static void do_nmi_stats(unsigned char key) printk("%pv: NMI neither pending nor masked\n", v); } -static __init int register_nmi_trigger(void) +static int __init cf_check register_nmi_trigger(void) { register_keyhandler('N', do_nmi_trigger, "trigger an NMI", 0); register_keyhandler('n', do_nmi_stats, "NMI statistics", 1); diff --git a/xen/arch/x86/numa.c b/xen/arch/x86/numa.c index 6be5a0c93322..5de9db4e9943 100644 --- a/xen/arch/x86/numa.c +++ b/xen/arch/x86/numa.c @@ -504,7 +504,7 @@ static void dump_numa(unsigned char key) rcu_read_unlock(&domlist_read_lock); } -static __init int register_numa_trigger(void) +static int __init cf_check register_numa_trigger(void) { register_keyhandler('u', dump_numa, "dump NUMA info", 1); return 0; diff --git a/xen/arch/x86/oprofile/nmi_int.c b/xen/arch/x86/oprofile/nmi_int.c index 7842d95b95ea..ba9c4b9804ca 100644 --- a/xen/arch/x86/oprofile/nmi_int.c +++ b/xen/arch/x86/oprofile/nmi_int.c @@ -388,7 +388,7 @@ static int __init arch_perfmon_init(char **cpu_type) return 1; } -static int __init nmi_init(void) +static int __init cf_check nmi_init(void) { __u8 vendor = current_cpu_data.x86_vendor; __u8 family = current_cpu_data.x86; diff --git a/xen/arch/x86/percpu.c b/xen/arch/x86/percpu.c index 5ea14b6ec312..0e0b6577ca45 100644 --- a/xen/arch/x86/percpu.c +++ b/xen/arch/x86/percpu.c @@ -94,7 +94,7 @@ static struct notifier_block cpu_percpu_nfb = { .priority = 100 /* highest priority */ }; -static int __init percpu_presmp_init(void) +static int __init cf_check percpu_presmp_init(void) { register_cpu_notifier(&cpu_percpu_nfb); diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c index 56916344cb1d..9a3670afc341 100644 --- a/xen/arch/x86/psr.c +++ b/xen/arch/x86/psr.c @@ -1675,7 +1675,7 @@ static struct notifier_block cpu_nfb = { .priority = -1 }; -static int __init psr_presmp_init(void) +static int __init cf_check psr_presmp_init(void) { if ( (opt_psr & PSR_CMT) && opt_rmid_max ) init_psr_cmt(opt_rmid_max); diff --git a/xen/arch/x86/pv/domain.c b/xen/arch/x86/pv/domain.c index 125c4561a7ea..55146c15c853 100644 --- a/xen/arch/x86/pv/domain.c +++ b/xen/arch/x86/pv/domain.c @@ -167,7 +167,7 @@ unsigned long pv_fixup_guest_cr4(const struct vcpu *v, unsigned long cr4) static int8_t __read_mostly opt_global_pages = -1; boolean_runtime_param("global-pages", opt_global_pages); -static int __init pge_init(void) +static int __init cf_check pge_init(void) { if ( opt_global_pages == -1 ) opt_global_pages = !cpu_has_hypervisor || diff --git a/xen/arch/x86/shutdown.c b/xen/arch/x86/shutdown.c index a01354d93319..ad3e3a76916f 100644 --- a/xen/arch/x86/shutdown.c +++ b/xen/arch/x86/shutdown.c @@ -533,7 +533,7 @@ static const struct dmi_system_id __initconstrel reboot_dmi_table[] = { { } }; -static int __init reboot_init(void) +static int __init cf_check reboot_init(void) { /* * Only do the DMI check if reboot_type hasn't been overridden diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c index 2da9c7f5c8dd..14f7d3fd635e 100644 --- a/xen/arch/x86/time.c +++ b/xen/arch/x86/time.c @@ -537,7 +537,7 @@ static struct platform_timesource __initdata plt_pmtimer = static struct time_scale __read_mostly pmt_scale; -static __init int init_pmtmr_scale(void) +static __init int cf_check init_pmtmr_scale(void) { set_time_scale(&pmt_scale, ACPI_PM_FREQUENCY); return 0; @@ -2052,7 +2052,7 @@ static void __init try_platform_timer_tail(void) } /* Late init function, after all cpus have booted */ -static int __init verify_tsc_reliability(void) +static int __init cf_check verify_tsc_reliability(void) { if ( boot_cpu_has(X86_FEATURE_TSC_RELIABLE) ) { @@ -2223,7 +2223,7 @@ static int _disable_pit_irq(void(*hpet_broadcast_setup)(void)) return ret; } -static int __init disable_pit_irq(void) +static int __init cf_check disable_pit_irq(void) { if ( !_disable_pit_irq(hpet_broadcast_init) ) { @@ -2586,7 +2586,7 @@ static void dump_softtsc(unsigned char key) printk("No domains have emulated TSC\n"); } -static int __init setup_dump_softtsc(void) +static int __init cf_check setup_dump_softtsc(void) { register_keyhandler('s', dump_softtsc, "dump softtsc stats", 1); return 0; diff --git a/xen/common/core_parking.c b/xen/common/core_parking.c index aa432ed2f57b..44a907abfd7f 100644 --- a/xen/common/core_parking.c +++ b/xen/common/core_parking.c @@ -258,7 +258,7 @@ static int __init register_core_parking_policy(const struct cp_policy *policy) return 0; } -static int __init core_parking_init(void) +static int __init cf_check core_parking_init(void) { int ret = 0; diff --git a/xen/common/debugtrace.c b/xen/common/debugtrace.c index 29b11239f5a5..f3c0fd8aa17b 100644 --- a/xen/common/debugtrace.c +++ b/xen/common/debugtrace.c @@ -279,7 +279,7 @@ static struct notifier_block debugtrace_nfb = { .notifier_call = debugtrace_cpu_callback }; -static int __init debugtrace_init(void) +static int __init cf_check debugtrace_init(void) { unsigned int cpu; diff --git a/xen/common/event_channel.c b/xen/common/event_channel.c index a5ee8b8ebf76..2026bc30dc95 100644 --- a/xen/common/event_channel.c +++ b/xen/common/event_channel.c @@ -1642,7 +1642,7 @@ static void dump_evtchn_info(unsigned char key) rcu_read_unlock(&domlist_read_lock); } -static int __init dump_evtchn_info_key_init(void) +static int __init cf_check dump_evtchn_info_key_init(void) { register_keyhandler('e', dump_evtchn_info, "dump evtchn info", 1); return 0; diff --git a/xen/common/gdbstub.c b/xen/common/gdbstub.c index 848c1f4327e8..99bfd9a654c9 100644 --- a/xen/common/gdbstub.c +++ b/xen/common/gdbstub.c @@ -640,7 +640,7 @@ __trap_to_gdb(struct cpu_user_regs *regs, unsigned long cookie) return rc; } -static int __init initialise_gdb(void) +static int __init cf_check initialise_gdb(void) { if ( *opt_gdb == '\0' ) return 0; diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c index b663845d9c6c..1078e3e16cda 100644 --- a/xen/common/grant_table.c +++ b/xen/common/grant_table.c @@ -4291,7 +4291,7 @@ static void gnttab_usage_print_all(unsigned char key) printk("%s ] done\n", __func__); } -static int __init gnttab_usage_init(void) +static int __init cf_check gnttab_usage_init(void) { register_keyhandler('g', gnttab_usage_print_all, "print grant table usage", 1); diff --git a/xen/common/kernel.c b/xen/common/kernel.c index 752c2e0dae44..adff2d2c77f3 100644 --- a/xen/common/kernel.c +++ b/xen/common/kernel.c @@ -393,7 +393,7 @@ static HYPFS_STRING_INIT(extra, "extra"); static HYPFS_STRING_INIT(config, "config"); #endif -static int __init buildinfo_init(void) +static int __init cf_check buildinfo_init(void) { hypfs_add_dir(&hypfs_root, &buildinfo, true); @@ -431,7 +431,7 @@ __initcall(buildinfo_init); static HYPFS_DIR_INIT(params, "params"); -static int __init param_init(void) +static int __init cf_check param_init(void) { struct param_hypfs *param; diff --git a/xen/common/kexec.c b/xen/common/kexec.c index 6286c0bbf08b..36384f782db3 100644 --- a/xen/common/kexec.c +++ b/xen/common/kexec.c @@ -570,7 +570,7 @@ void __init kexec_early_calculations(void) crashinfo_maxaddr_bits = fls64(crashinfo_maxaddr) - 1; } -static int __init kexec_init(void) +static int __init cf_check kexec_init(void) { void *cpu = (void *)(unsigned long)smp_processor_id(); diff --git a/xen/common/livepatch.c b/xen/common/livepatch.c index 7118551b27e2..33708b4e2388 100644 --- a/xen/common/livepatch.c +++ b/xen/common/livepatch.c @@ -2139,7 +2139,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback }; -static int __init livepatch_init(void) +static int __init cf_check livepatch_init(void) { unsigned int cpu; diff --git a/xen/common/page_alloc.c b/xen/common/page_alloc.c index ad06655158d2..561e238d2d6a 100644 --- a/xen/common/page_alloc.c +++ b/xen/common/page_alloc.c @@ -2549,7 +2549,7 @@ static void pagealloc_info(unsigned char key) printk(" Dom heap: %lukB free\n", total << (PAGE_SHIFT-10)); } -static __init int pagealloc_keyhandler_init(void) +static __init int cf_check pagealloc_keyhandler_init(void) { register_keyhandler('m', pagealloc_info, "memory info", 1); return 0; @@ -2597,7 +2597,7 @@ static void dump_heap(unsigned char key) } } -static __init int register_heap_trigger(void) +static __init int cf_check register_heap_trigger(void) { register_keyhandler('H', dump_heap, "dump heap info", 1); return 0; diff --git a/xen/common/radix-tree.c b/xen/common/radix-tree.c index 2384655a2e90..628a7e06988f 100644 --- a/xen/common/radix-tree.c +++ b/xen/common/radix-tree.c @@ -744,7 +744,7 @@ static __init unsigned long __maxindex(unsigned int height) return ~0UL >> shift; } -static __init int radix_tree_init_maxindex(void) +static int __init cf_check radix_tree_init_maxindex(void) { unsigned int i; diff --git a/xen/common/random.c b/xen/common/random.c index fb805b0ecd95..a29f2fcb991a 100644 --- a/xen/common/random.c +++ b/xen/common/random.c @@ -31,7 +31,7 @@ unsigned int get_random(void) return val; } -static int __init init_boot_random(void) +static int __init cf_check init_boot_random(void) { boot_random = get_random(); return 0; diff --git a/xen/common/sched/cpupool.c b/xen/common/sched/cpupool.c index f0dd626054a6..f26c7f289539 100644 --- a/xen/common/sched/cpupool.c +++ b/xen/common/sched/cpupool.c @@ -1218,7 +1218,7 @@ static void cpupool_hypfs_init(void) #endif /* CONFIG_HYPFS */ -static int __init cpupool_init(void) +static int __init cf_check cpupool_init(void) { unsigned int cpu; diff --git a/xen/common/spinlock.c b/xen/common/spinlock.c index b90981bb271e..5ce7e3363863 100644 --- a/xen/common/spinlock.c +++ b/xen/common/spinlock.c @@ -508,7 +508,7 @@ void _lock_profile_deregister_struct( spin_unlock(&lock_profile_lock); } -static int __init lock_prof_init(void) +static int __init cf_check lock_prof_init(void) { struct lock_profile **q; diff --git a/xen/common/stop_machine.c b/xen/common/stop_machine.c index 2d5f6aef61ed..8979d553d677 100644 --- a/xen/common/stop_machine.c +++ b/xen/common/stop_machine.c @@ -198,7 +198,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback }; -static int __init cpu_stopmachine_init(void) +static int __init cf_check cpu_stopmachine_init(void) { unsigned int cpu; for_each_online_cpu ( cpu ) diff --git a/xen/drivers/cpufreq/cpufreq.c b/xen/drivers/cpufreq/cpufreq.c index 36b079296235..e55e202d5a18 100644 --- a/xen/drivers/cpufreq/cpufreq.c +++ b/xen/drivers/cpufreq/cpufreq.c @@ -657,7 +657,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback }; -static int __init cpufreq_presmp_init(void) +static int __init cf_check cpufreq_presmp_init(void) { register_cpu_notifier(&cpu_nfb); return 0; diff --git a/xen/drivers/cpufreq/cpufreq_misc_governors.c b/xen/drivers/cpufreq/cpufreq_misc_governors.c index 746bbcd5ff36..8343f491da87 100644 --- a/xen/drivers/cpufreq/cpufreq_misc_governors.c +++ b/xen/drivers/cpufreq/cpufreq_misc_governors.c @@ -116,7 +116,7 @@ struct cpufreq_governor cpufreq_gov_userspace = { .handle_option = cpufreq_userspace_handle_option }; -static int __init cpufreq_gov_userspace_init(void) +static int __init cf_check cpufreq_gov_userspace_init(void) { unsigned int cpu; @@ -160,7 +160,7 @@ struct cpufreq_governor cpufreq_gov_performance = { .governor = cpufreq_governor_performance, }; -static int __init cpufreq_gov_performance_init(void) +static int __init cf_check cpufreq_gov_performance_init(void) { return cpufreq_register_governor(&cpufreq_gov_performance); } @@ -199,7 +199,7 @@ struct cpufreq_governor cpufreq_gov_powersave = { .governor = cpufreq_governor_powersave, }; -static int __init cpufreq_gov_powersave_init(void) +static int __init cf_check cpufreq_gov_powersave_init(void) { return cpufreq_register_governor(&cpufreq_gov_powersave); } diff --git a/xen/drivers/cpufreq/cpufreq_ondemand.c b/xen/drivers/cpufreq/cpufreq_ondemand.c index 6b905d7cfca8..cabd9ffa8886 100644 --- a/xen/drivers/cpufreq/cpufreq_ondemand.c +++ b/xen/drivers/cpufreq/cpufreq_ondemand.c @@ -356,7 +356,7 @@ struct cpufreq_governor cpufreq_gov_dbs = { .handle_option = cpufreq_dbs_handle_option }; -static int __init cpufreq_gov_dbs_init(void) +static int __init cf_check cpufreq_gov_dbs_init(void) { return cpufreq_register_governor(&cpufreq_gov_dbs); } diff --git a/xen/drivers/passthrough/amd/iommu.h b/xen/drivers/passthrough/amd/iommu.h index 93243424e85d..04517c1a024c 100644 --- a/xen/drivers/passthrough/amd/iommu.h +++ b/xen/drivers/passthrough/amd/iommu.h @@ -234,7 +234,7 @@ int amd_iommu_prepare(bool xt); int amd_iommu_init(bool xt); int amd_iommu_init_late(void); int amd_iommu_update_ivrs_mapping_acpi(void); -int iov_adjust_irq_affinities(void); +int cf_check iov_adjust_irq_affinities(void); int amd_iommu_quarantine_init(struct domain *d); diff --git a/xen/drivers/passthrough/amd/iommu_init.c b/xen/drivers/passthrough/amd/iommu_init.c index 559a734bdaa5..f1ed75558227 100644 --- a/xen/drivers/passthrough/amd/iommu_init.c +++ b/xen/drivers/passthrough/amd/iommu_init.c @@ -808,7 +808,7 @@ static bool_t __init set_iommu_interrupt_handler(struct amd_iommu *iommu) return 1; } -int iov_adjust_irq_affinities(void) +int cf_check iov_adjust_irq_affinities(void) { const struct amd_iommu *iommu; diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c index 20cb246598b1..ed459f6409a8 100644 --- a/xen/drivers/passthrough/pci.c +++ b/xen/drivers/passthrough/pci.c @@ -1358,7 +1358,7 @@ static void dump_pci_devices(unsigned char ch) pcidevs_unlock(); } -static int __init setup_dump_pcidevs(void) +static int __init cf_check setup_dump_pcidevs(void) { register_keyhandler('Q', dump_pci_devices, "dump PCI devices", 1); return 0; diff --git a/xen/drivers/passthrough/vtd/iommu.c b/xen/drivers/passthrough/vtd/iommu.c index 34ea5f485de7..9e85016830bf 100644 --- a/xen/drivers/passthrough/vtd/iommu.c +++ b/xen/drivers/passthrough/vtd/iommu.c @@ -2154,7 +2154,7 @@ static void adjust_irq_affinity(struct acpi_drhd_unit *drhd) spin_unlock_irqrestore(&desc->lock, flags); } -static int adjust_vtd_irq_affinities(void) +static int cf_check adjust_vtd_irq_affinities(void) { struct acpi_drhd_unit *drhd; diff --git a/xen/drivers/passthrough/x86/hvm.c b/xen/drivers/passthrough/x86/hvm.c index 0b37cd145b60..e5a2c5830348 100644 --- a/xen/drivers/passthrough/x86/hvm.c +++ b/xen/drivers/passthrough/x86/hvm.c @@ -1076,7 +1076,7 @@ static struct notifier_block cpu_nfb = { .notifier_call = cpu_callback, }; -static int __init setup_dpci_softirq(void) +static int __init cf_check setup_dpci_softirq(void) { unsigned int cpu; -- 2.11.0

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