[PATCH 3/5] x86/nmi: Misc style fixes
Andrew Cooper <[email protected]> Wed, 5 Aug 2026 13:45:23 +0100
| Newsgroups | gmane.comp.emulators.xen.devel |
|---|---|
| Message-ID | <[email protected]> |
* Drop trailing whitespace * Sort includes, dropping asm/mc146818rtc.h and asm/div64.h as unused * Brace position, and types No functional change. Signed-off-by: Andrew Cooper <[email protected]> --- CC: Jan Beulich <[email protected]> CC: Roger Pau Monné <[email protected]> CC: Teddy Astie <[email protected]> --- xen/arch/x86/nmi.c | 54 ++++++++++++++++++++++++---------------------- 1 file changed, 28 insertions(+), 26 deletions(-) diff --git a/xen/arch/x86/nmi.c b/xen/arch/x86/nmi.c index 113e672c4f15..d9d07870a333 100644 --- a/xen/arch/x86/nmi.c +++ b/xen/arch/x86/nmi.c @@ -13,26 +13,25 @@ * Mikael Pettersson : PM converted to driver model. Disable/enable API. */ +#include <xen/console.h> +#include <xen/cpu.h> +#include <xen/delay.h> #include <xen/init.h> +#include <xen/irq.h> +#include <xen/keyhandler.h> #include <xen/lib.h> #include <xen/mm.h> #include <xen/param.h> -#include <xen/irq.h> -#include <xen/delay.h> -#include <xen/time.h> #include <xen/sched.h> -#include <xen/console.h> #include <xen/smp.h> -#include <xen/keyhandler.h> +#include <xen/time.h> #include <xen/watchdog.h> -#include <xen/cpu.h> + +#include <asm/apic.h> #include <asm/current.h> -#include <asm/mc146818rtc.h> -#include <asm/msr.h> #include <asm/mpspec.h> +#include <asm/msr.h> #include <asm/nmi.h> -#include <asm/div64.h> -#include <asm/apic.h> unsigned int nmi_watchdog = NMI_NONE; static unsigned int nmi_hz = HZ; @@ -124,10 +123,10 @@ static int nmi_active; #define P4_CCCR_REQUIRED (3<<16) #define P4_CCCR_ESCR_SELECT(N) ((N)<<13) #define P4_CCCR_ENABLE (1<<12) -/* +/* * Set up IQ_PERFCTR0 to behave like a clock, by having IQ_CCCR0 filter * CRU_ESCR0 (with any non-null event selector) through a complemented - * max threshold. [IA32-Vol3, Section 14.9.9] + * max threshold. [IA32-Vol3, Section 14.9.9] */ #define P4_NMI_CRU_ESCR0 P4_ESCR_EVENT_SELECT(0x3F) #define P4_NMI_IQ_CCCR0 \ @@ -182,7 +181,7 @@ void __init check_nmi_watchdog(void) * There's a limit to how slow we can go because writing the perfctr * MSRs only sets the low 32 bits, with the top 8 bits sign-extended * from those, so it's not possible to set up a delay larger than - * 2^31 cycles and smaller than (2^40 - 2^31) cycles. + * 2^31 cycles and smaller than (2^40 - 2^31) cycles. * (Intel SDM, section 18.22.2) */ if ( nmi_watchdog == NMI_LOCAL_APIC ) @@ -199,8 +198,9 @@ static void cf_check nmi_timer_fn(void *unused) void disable_lapic_nmi_watchdog(void) { - if (nmi_active <= 0) + if ( nmi_active <= 0 ) return; + switch ( boot_cpu_data.vendor ) { case X86_VENDOR_AMD: @@ -231,9 +231,7 @@ void disable_lapic_nmi_watchdog(void) static void clear_msr_range(unsigned int base, unsigned int n) { - unsigned int i; - - for (i = 0; i < n; i++) + for ( unsigned int i = 0; i < n; i++ ) wrmsrns(base + i, 0); } @@ -302,7 +300,7 @@ static void setup_p4_watchdog(void) uint64_t misc_enable; rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); - if (!(misc_enable & MSR_IA32_MISC_ENABLE_PERF_AVAIL)) + if ( !(misc_enable & MSR_IA32_MISC_ENABLE_PERF_AVAIL) ) return; nmi_perfctr_msr = MSR_P4_IQ_PERFCTR0; @@ -310,15 +308,18 @@ static void setup_p4_watchdog(void) if ( boot_cpu_data.x86_num_siblings == 2 ) nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; - if (!(misc_enable & MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL)) + if ( !(misc_enable & MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL) ) clear_msr_range(0x3F1, 2); /* MSR 0x3F0 seems to have a default value of 0xFC00, but current docs doesn't fully define it, so leave it alone for now. */ - if (boot_cpu_data.model >= 0x3) { + if ( boot_cpu_data.model >= 0x3 ) + { /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */ clear_msr_range(0x3A0, 26); clear_msr_range(0x3BC, 3); - } else { + } + else + { clear_msr_range(0x3A0, 31); } clear_msr_range(0x3C0, 6); @@ -393,7 +394,7 @@ static int cf_check cpu_nmi_callback( } static struct notifier_block cpu_nmi_nfb = { - .notifier_call = cpu_nmi_callback + .notifier_call = cpu_nmi_callback, }; static DEFINE_PER_CPU(unsigned int, last_irq_sums); @@ -444,15 +445,15 @@ bool nmi_watchdog_tick(const struct cpu_user_regs *regs) * before doing the oops ... */ this_cpu(alert_counter)++; - if ( this_cpu(alert_counter) == opt_watchdog_timeout*nmi_hz ) + if ( this_cpu(alert_counter) == opt_watchdog_timeout * nmi_hz ) { console_force_unlock(); printk("Watchdog timer detects that CPU%d is stuck!\n", smp_processor_id()); fatal_trap(regs, 1); } - } - else + } + else { this_cpu(last_irq_sums) = sum; this_cpu(alert_counter) = 0; @@ -512,7 +513,8 @@ bool nmi_watchdog_tick(const struct cpu_user_regs *regs) void self_nmi(void) { unsigned long flags; - u32 id = get_apic_id(); + uint32_t id = get_apic_id(); + local_irq_save(flags); apic_wait_icr_idle(); apic_icr_write(APIC_DM_NMI | APIC_DEST_PHYSICAL, id); -- 2.34.1