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KVM: VMX: Expose various getters and setters to nested VMX

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...as they're used directly by the nested code.  This will allow
moving the bulk of the nested code out of vmx.c without concurrent
changes to vmx.h.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2018-12-03 13:53:16 -08:00 committed by Paolo Bonzini
parent cf3646eb3a
commit 97b7ead392
2 changed files with 53 additions and 48 deletions
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74
arch/x86/kvm/vmx/vmx.c
View File

@ -365,18 +365,11 @@ static inline struct vmcs12 *get_shadow_vmcs12(struct kvm_vcpu *vcpu)
static bool nested_ept_ad_enabled(struct kvm_vcpu *vcpu);
static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu);
static void vmx_set_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg);
static void vmx_get_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg);
static bool guest_state_valid(struct kvm_vcpu *vcpu);
static u32 vmx_segment_access_rights(struct kvm_segment *var);
static void copy_shadow_to_vmcs12(struct vcpu_vmx *vmx);
static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu);
static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked);
static bool nested_vmx_is_page_fault_vmexit(struct vmcs12 *vmcs12,
u16 error_code);
static void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu);
static __always_inline void vmx_disable_intercept_for_msr(unsigned long *msr_bitmap,
u32 msr, int type);
@ -438,8 +431,6 @@ static const struct kvm_vmx_segment_field {
u64 host_efer;
static void ept_save_pdptrs(struct kvm_vcpu *vcpu);
/*
* Keep MSR_STAR at the end, as setup_msrs() will try to optimize it
* away by decrementing the array size.
@ -687,7 +678,7 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
u32 exit_intr_info,
unsigned long exit_qualification);
static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
static inline int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@ -697,7 +688,7 @@ static int __find_msr_index(struct vcpu_vmx *vmx, u32 msr)
return -1;
}
static struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
{
int i;
@ -707,15 +698,6 @@ static struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr)
return NULL;
}
void loaded_vmcs_init(struct loaded_vmcs *loaded_vmcs)
{
vmcs_clear(loaded_vmcs->vmcs);
if (loaded_vmcs->shadow_vmcs && loaded_vmcs->launched)
vmcs_clear(loaded_vmcs->shadow_vmcs);
loaded_vmcs->cpu = -1;
loaded_vmcs->launched = 0;
}
#ifdef CONFIG_KEXEC_CORE
/*
* This bitmap is used to indicate whether the vmclear
@ -840,7 +822,7 @@ static u32 vmx_read_guest_seg_ar(struct vcpu_vmx *vmx, unsigned seg)
return *p;
}
static void update_exception_bitmap(struct kvm_vcpu *vcpu)
void update_exception_bitmap(struct kvm_vcpu *vcpu)
{
u32 eb;
@ -1140,7 +1122,7 @@ static unsigned long segment_base(u16 selector)
}
#endif
static void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct vmcs_host_state *host_state;
@ -1338,7 +1320,7 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
* Switches to specified vcpu, until a matching vcpu_put(), but assumes
* vcpu mutex is already taken.
*/
static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
bool already_loaded = vmx->loaded_vmcs->cpu == cpu;
@ -1419,7 +1401,7 @@ static void vmx_vcpu_pi_put(struct kvm_vcpu *vcpu)
pi_set_sn(pi_desc);
}
static void vmx_vcpu_put(struct kvm_vcpu *vcpu)
void vmx_vcpu_put(struct kvm_vcpu *vcpu)
{
vmx_vcpu_pi_put(vcpu);
@ -1449,7 +1431,7 @@ static inline unsigned long nested_read_cr4(struct vmcs12 *fields)
(fields->cr4_read_shadow & fields->cr4_guest_host_mask);
}
static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
{
unsigned long rflags, save_rflags;
@ -1466,7 +1448,7 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu)
return to_vmx(vcpu)->rflags;
}
static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
{
unsigned long old_rflags = vmx_get_rflags(vcpu);
@ -1482,7 +1464,7 @@ static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
to_vmx(vcpu)->emulation_required = emulation_required(vcpu);
}
static u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
{
u32 interruptibility = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
int ret = 0;
@ -1495,7 +1477,7 @@ static u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu)
return ret;
}
static void vmx_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask)
void vmx_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask)
{
u32 interruptibility_old = vmcs_read32(GUEST_INTERRUPTIBILITY_INFO);
u32 interruptibility = interruptibility_old;
@ -3291,7 +3273,7 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
kvm_mmu_reset_context(vcpu);
}
static void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer)
void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
struct shared_msr_entry *msr = find_msr_entry(vmx, MSR_EFER);
@ -3391,7 +3373,7 @@ static void ept_load_pdptrs(struct kvm_vcpu *vcpu)
}
}
static void ept_save_pdptrs(struct kvm_vcpu *vcpu)
void ept_save_pdptrs(struct kvm_vcpu *vcpu)
{
struct kvm_mmu *mmu = vcpu->arch.walk_mmu;
@ -3442,8 +3424,6 @@ static bool nested_cr4_valid(struct kvm_vcpu *vcpu, unsigned long val)
#define nested_guest_cr4_valid nested_cr4_valid
#define nested_host_cr4_valid nested_cr4_valid
static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
static void ept_update_paging_mode_cr0(unsigned long *hw_cr0,
unsigned long cr0,
struct kvm_vcpu *vcpu)
@ -3472,7 +3452,7 @@ static void ept_update_paging_mode_cr0(unsigned long *hw_cr0,
*hw_cr0 &= ~X86_CR0_WP;
}
static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned long hw_cr0;
@ -3531,7 +3511,7 @@ u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa)
return eptp;
}
static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{
struct kvm *kvm = vcpu->kvm;
unsigned long guest_cr3;
@ -3561,7 +3541,7 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
vmcs_writel(GUEST_CR3, guest_cr3);
}
static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{
/*
* Pass through host's Machine Check Enable value to hw_cr4, which
@ -3636,8 +3616,7 @@ static int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
return 0;
}
static void vmx_get_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg)
void vmx_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
u32 ar;
@ -3684,7 +3663,7 @@ static u64 vmx_get_segment_base(struct kvm_vcpu *vcpu, int seg)
return vmx_read_guest_seg_base(to_vmx(vcpu), seg);
}
static int vmx_get_cpl(struct kvm_vcpu *vcpu)
int vmx_get_cpl(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
@ -3716,8 +3695,7 @@ static u32 vmx_segment_access_rights(struct kvm_segment *var)
return ar;
}
static void vmx_set_segment(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg)
void vmx_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
@ -4111,7 +4089,7 @@ out:
return r;
}
static int allocate_vpid(void)
int allocate_vpid(void)
{
int vpid;
@ -4127,7 +4105,7 @@ static int allocate_vpid(void)
return vpid;
}
static void free_vpid(int vpid)
void free_vpid(int vpid)
{
if (!enable_vpid || vpid == 0)
return;
@ -4302,7 +4280,7 @@ static void vmx_update_msr_bitmap_x2apic(unsigned long *msr_bitmap,
}
}
static void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu)
void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
unsigned long *msr_bitmap = vmx->vmcs01.msr_bitmap;
@ -4490,7 +4468,7 @@ static void vmx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector)
* Note that host-state that does change is set elsewhere. E.g., host-state
* that is set differently for each CPU is set in vmx_vcpu_load(), not here.
*/
static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
{
u32 low32, high32;
unsigned long tmpl;
@ -4550,7 +4528,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
vmcs_write64(HOST_IA32_EFER, host_efer);
}
static void set_cr4_guest_host_mask(struct vcpu_vmx *vmx)
void set_cr4_guest_host_mask(struct vcpu_vmx *vmx)
{
vmx->vcpu.arch.cr4_guest_owned_bits = KVM_CR4_GUEST_OWNED_BITS;
if (enable_ept)
@ -5080,7 +5058,7 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu)
vmx_clear_hlt(vcpu);
}
static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
bool masked;
@ -5094,7 +5072,7 @@ static bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu)
return masked;
}
static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
@ -8688,7 +8666,7 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
vmcs_write32(TPR_THRESHOLD, irr);
}
static void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu)
{
u32 sec_exec_control;

27
arch/x86/kvm/vmx/vmx.h
View File

@ -267,6 +267,33 @@ struct kvm_vmx {
spinlock_t ept_pointer_lock;
};
void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
void vmx_vcpu_put(struct kvm_vcpu *vcpu);
int allocate_vpid(void);
void free_vpid(int vpid);
void vmx_set_constant_host_state(struct vcpu_vmx *vmx);
void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu);
int vmx_get_cpl(struct kvm_vcpu *vcpu);
unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu);
void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu);
void vmx_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask);
void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer);
void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
void set_cr4_guest_host_mask(struct vcpu_vmx *vmx);
void ept_save_pdptrs(struct kvm_vcpu *vcpu);
void vmx_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
void vmx_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
void update_exception_bitmap(struct kvm_vcpu *vcpu);
void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu);
bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu);
void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked);
void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr);
#define POSTED_INTR_ON 0
#define POSTED_INTR_SN 1