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Commit 772e0318 authored by Mathias Krause's avatar Mathias Krause Committed by Avi Kivity
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KVM: VMX: constify lookup tables



We use vmcs_field_to_offset_table[], kvm_vmx_segment_fields[] and
kvm_vmx_exit_handlers[] as lookup tables only -- make them r/o.

Signed-off-by: default avatarMathias Krause <minipli@googlemail.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent f1d24831
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+7 −7
Original line number Diff line number Diff line
@@ -450,7 +450,7 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
#define FIELD64(number, name)	[number] = VMCS12_OFFSET(name), \
				[number##_HIGH] = VMCS12_OFFSET(name)+4

static unsigned short vmcs_field_to_offset_table[] = {
static const unsigned short vmcs_field_to_offset_table[] = {
	FIELD(VIRTUAL_PROCESSOR_ID, virtual_processor_id),
	FIELD(GUEST_ES_SELECTOR, guest_es_selector),
	FIELD(GUEST_CS_SELECTOR, guest_cs_selector),
@@ -666,7 +666,7 @@ static struct vmx_capability {
		.ar_bytes = GUEST_##seg##_AR_BYTES,	   	\
	}

static struct kvm_vmx_segment_field {
static const struct kvm_vmx_segment_field {
	unsigned selector;
	unsigned base;
	unsigned limit;
@@ -2695,7 +2695,7 @@ static __exit void hardware_unsetup(void)

static void fix_pmode_dataseg(struct kvm_vcpu *vcpu, int seg, struct kvm_segment *save)
{
	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	struct kvm_segment tmp = *save;

	if (!(vmcs_readl(sf->base) == tmp.base && tmp.s)) {
@@ -2764,7 +2764,7 @@ static gva_t rmode_tss_base(struct kvm *kvm)

static void fix_rmode_seg(int seg, struct kvm_segment *save)
{
	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];

	vmcs_write16(sf->selector, save->base >> 4);
	vmcs_write32(sf->base, save->base & 0xffff0);
@@ -3202,7 +3202,7 @@ static void vmx_set_segment(struct kvm_vcpu *vcpu,
			    struct kvm_segment *var, int seg)
{
	struct vcpu_vmx *vmx = to_vmx(vcpu);
	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	u32 ar;

	vmx_segment_cache_clear(vmx);
@@ -3572,7 +3572,7 @@ out:

static void seg_setup(int seg)
{
	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
	unsigned int ar;

	vmcs_write16(sf->selector, 0);
@@ -5655,7 +5655,7 @@ static int handle_vmptrst(struct kvm_vcpu *vcpu)
 * may resume.  Otherwise they set the kvm_run parameter to indicate what needs
 * to be done to userspace and return 0.
 */
static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
static int (*const kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
	[EXIT_REASON_EXCEPTION_NMI]           = handle_exception,
	[EXIT_REASON_EXTERNAL_INTERRUPT]      = handle_external_interrupt,
	[EXIT_REASON_TRIPLE_FAULT]            = handle_triple_fault,