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https://github.com/torvalds/linux
synced 2024-09-06 09:51:23 +00:00
KVM: Prefix control register accessors with kvm_ to avoid namespace pollution
Names like 'set_cr3()' look dangerously close to affecting the host. Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
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05da45583d
commit
2d3ad1f40c
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@ -1683,7 +1683,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
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vmx->vcpu.arch.rmode.active = 0;
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vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
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set_cr8(&vmx->vcpu, 0);
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kvm_set_cr8(&vmx->vcpu, 0);
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msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
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if (vmx->vcpu.vcpu_id == 0)
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msr |= MSR_IA32_APICBASE_BSP;
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@ -2026,22 +2026,22 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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switch (cr) {
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case 0:
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vcpu_load_rsp_rip(vcpu);
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set_cr0(vcpu, vcpu->arch.regs[reg]);
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kvm_set_cr0(vcpu, vcpu->arch.regs[reg]);
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skip_emulated_instruction(vcpu);
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return 1;
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case 3:
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vcpu_load_rsp_rip(vcpu);
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set_cr3(vcpu, vcpu->arch.regs[reg]);
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kvm_set_cr3(vcpu, vcpu->arch.regs[reg]);
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skip_emulated_instruction(vcpu);
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return 1;
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case 4:
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vcpu_load_rsp_rip(vcpu);
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set_cr4(vcpu, vcpu->arch.regs[reg]);
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kvm_set_cr4(vcpu, vcpu->arch.regs[reg]);
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skip_emulated_instruction(vcpu);
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return 1;
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case 8:
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vcpu_load_rsp_rip(vcpu);
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set_cr8(vcpu, vcpu->arch.regs[reg]);
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kvm_set_cr8(vcpu, vcpu->arch.regs[reg]);
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skip_emulated_instruction(vcpu);
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if (irqchip_in_kernel(vcpu->kvm))
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return 1;
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@ -2067,14 +2067,14 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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return 1;
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case 8:
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vcpu_load_rsp_rip(vcpu);
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vcpu->arch.regs[reg] = get_cr8(vcpu);
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vcpu->arch.regs[reg] = kvm_get_cr8(vcpu);
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vcpu_put_rsp_rip(vcpu);
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skip_emulated_instruction(vcpu);
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return 1;
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}
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break;
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case 3: /* lmsw */
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lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f);
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kvm_lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f);
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skip_emulated_instruction(vcpu);
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return 1;
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@ -237,7 +237,7 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu)
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return changed;
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}
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void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
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void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
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{
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if (cr0 & CR0_RESERVED_BITS) {
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printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
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@ -295,15 +295,15 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
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kvm_mmu_reset_context(vcpu);
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return;
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}
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EXPORT_SYMBOL_GPL(set_cr0);
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EXPORT_SYMBOL_GPL(kvm_set_cr0);
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void lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
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void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
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{
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set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f));
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kvm_set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f));
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}
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EXPORT_SYMBOL_GPL(lmsw);
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EXPORT_SYMBOL_GPL(kvm_lmsw);
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void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
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void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
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{
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if (cr4 & CR4_RESERVED_BITS) {
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printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
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@ -334,9 +334,9 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
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vcpu->arch.cr4 = cr4;
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kvm_mmu_reset_context(vcpu);
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}
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EXPORT_SYMBOL_GPL(set_cr4);
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EXPORT_SYMBOL_GPL(kvm_set_cr4);
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void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
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void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
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{
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if (cr3 == vcpu->arch.cr3 && !pdptrs_changed(vcpu)) {
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kvm_mmu_flush_tlb(vcpu);
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@ -388,9 +388,9 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
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}
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up_read(&vcpu->kvm->slots_lock);
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}
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EXPORT_SYMBOL_GPL(set_cr3);
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EXPORT_SYMBOL_GPL(kvm_set_cr3);
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void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
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void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
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{
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if (cr8 & CR8_RESERVED_BITS) {
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printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
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@ -402,16 +402,16 @@ void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
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else
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vcpu->arch.cr8 = cr8;
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}
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EXPORT_SYMBOL_GPL(set_cr8);
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EXPORT_SYMBOL_GPL(kvm_set_cr8);
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unsigned long get_cr8(struct kvm_vcpu *vcpu)
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unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu)
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{
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if (irqchip_in_kernel(vcpu->kvm))
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return kvm_lapic_get_cr8(vcpu);
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else
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return vcpu->arch.cr8;
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}
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EXPORT_SYMBOL_GPL(get_cr8);
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EXPORT_SYMBOL_GPL(kvm_get_cr8);
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/*
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* List of msr numbers which we expose to userspace through KVM_GET_MSRS
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@ -2462,7 +2462,7 @@ void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
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void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
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unsigned long *rflags)
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{
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lmsw(vcpu, msw);
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kvm_lmsw(vcpu, msw);
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*rflags = kvm_x86_ops->get_rflags(vcpu);
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}
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@ -2479,7 +2479,7 @@ unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
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case 4:
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return vcpu->arch.cr4;
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case 8:
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return get_cr8(vcpu);
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return kvm_get_cr8(vcpu);
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default:
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vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
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return 0;
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@ -2491,20 +2491,20 @@ void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
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{
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switch (cr) {
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case 0:
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set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));
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kvm_set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));
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*rflags = kvm_x86_ops->get_rflags(vcpu);
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break;
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case 2:
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vcpu->arch.cr2 = val;
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break;
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case 3:
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set_cr3(vcpu, val);
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kvm_set_cr3(vcpu, val);
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break;
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case 4:
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set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val));
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kvm_set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val));
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break;
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case 8:
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set_cr8(vcpu, val & 0xfUL);
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kvm_set_cr8(vcpu, val & 0xfUL);
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break;
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default:
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vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
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@ -2602,7 +2602,7 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu,
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struct kvm_run *kvm_run)
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{
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kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
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kvm_run->cr8 = get_cr8(vcpu);
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kvm_run->cr8 = kvm_get_cr8(vcpu);
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kvm_run->apic_base = kvm_get_apic_base(vcpu);
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if (irqchip_in_kernel(vcpu->kvm))
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kvm_run->ready_for_interrupt_injection = 1;
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@ -2803,7 +2803,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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/* re-sync apic's tpr */
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if (!irqchip_in_kernel(vcpu->kvm))
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set_cr8(vcpu, kvm_run->cr8);
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kvm_set_cr8(vcpu, kvm_run->cr8);
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if (vcpu->arch.pio.cur_count) {
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r = complete_pio(vcpu);
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@ -2961,7 +2961,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
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sregs->cr2 = vcpu->arch.cr2;
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sregs->cr3 = vcpu->arch.cr3;
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sregs->cr4 = vcpu->arch.cr4;
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sregs->cr8 = get_cr8(vcpu);
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sregs->cr8 = kvm_get_cr8(vcpu);
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sregs->efer = vcpu->arch.shadow_efer;
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sregs->apic_base = kvm_get_apic_base(vcpu);
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@ -3007,7 +3007,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
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mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3;
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vcpu->arch.cr3 = sregs->cr3;
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set_cr8(vcpu, sregs->cr8);
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kvm_set_cr8(vcpu, sregs->cr8);
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mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
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kvm_x86_ops->set_efer(vcpu, sregs->efer);
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@ -470,12 +470,12 @@ int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
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int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
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unsigned long value);
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void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
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void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
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void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
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void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
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unsigned long get_cr8(struct kvm_vcpu *vcpu);
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void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
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void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
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void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
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void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
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void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
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unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
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void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
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void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
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int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
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