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Commit 893590c7 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: x86: declare a few variables as __read_mostly 



These include module parameters and variables that are set by
kvm_x86_ops->hardware_setup.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 450869d6

arch/x86/include/asm/kvm_host.h

+0 −2
Original line number Diff line number Diff line
@@ -986,8 +986,6 @@ u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu); 


/* control of guest tsc rate supported? */

extern bool kvm_has_tsc_control;

/* minimum supported tsc_khz for guests */

extern u32  kvm_min_guest_tsc_khz;

/* maximum supported tsc_khz for guests */

extern u32  kvm_max_guest_tsc_khz;

arch/x86/kvm/x86.c

+7 −7
Original line number Diff line number Diff line
@@ -93,10 +93,10 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu); 
static void process_nmi(struct kvm_vcpu *vcpu);

static void __kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);



struct kvm_x86_ops *kvm_x86_ops;

struct kvm_x86_ops *kvm_x86_ops __read_mostly;

EXPORT_SYMBOL_GPL(kvm_x86_ops);



static bool ignore_msrs = 0;

static bool __read_mostly ignore_msrs = 0;

module_param(ignore_msrs, bool, S_IRUGO | S_IWUSR);



unsigned int min_timer_period_us = 500;
@@ -105,20 +105,20 @@ module_param(min_timer_period_us, uint, S_IRUGO | S_IWUSR); 
static bool __read_mostly kvmclock_periodic_sync = true;

module_param(kvmclock_periodic_sync, bool, S_IRUGO);



bool kvm_has_tsc_control;

bool __read_mostly kvm_has_tsc_control;

EXPORT_SYMBOL_GPL(kvm_has_tsc_control);

u32  kvm_max_guest_tsc_khz;

u32  __read_mostly kvm_max_guest_tsc_khz;

EXPORT_SYMBOL_GPL(kvm_max_guest_tsc_khz);



/* tsc tolerance in parts per million - default to 1/2 of the NTP threshold */

static u32 tsc_tolerance_ppm = 250;

static u32 __read_mostly tsc_tolerance_ppm = 250;

module_param(tsc_tolerance_ppm, uint, S_IRUGO | S_IWUSR);



/* lapic timer advance (tscdeadline mode only) in nanoseconds */

unsigned int lapic_timer_advance_ns = 0;

unsigned int __read_mostly lapic_timer_advance_ns = 0;

module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR);



static bool backwards_tsc_observed = false;

static bool __read_mostly backwards_tsc_observed = false;



#define KVM_NR_SHARED_MSRS 16