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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: Paolo Bonzini <pbonzini@redhat.com>
hifive-unleashed-5.1
Paolo Bonzini 2015-11-06 11:46:24 +01:00
parent 450869d6db
commit 893590c734
2 changed files with 7 additions and 9 deletions
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2
arch/x86/include/asm/kvm_host.h
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@ -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;

14
arch/x86/kvm/x86.c
View File

@ -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