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Commit 56b237e3 authored by Nitin A Kamble's avatar Nitin A Kamble Committed by Avi Kivity
Browse files

KVM: VMX: Rename rmode.active to rmode.vm86_active 



That way the interpretation of rmode.active becomes more clear with
unrestricted guest code.

Signed-off-by: default avatarNitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 20f65983

arch/x86/include/asm/kvm_host.h

+1 −1
Original line number Diff line number Diff line
@@ -335,7 +335,7 @@ struct kvm_vcpu_arch { 
	} interrupt;



	struct {

		int active;

		int vm86_active;

		u8 save_iopl;

		struct kvm_save_segment {

			u16 selector;

arch/x86/kvm/vmx.c

+14 −14
Original line number Diff line number Diff line
@@ -495,7 +495,7 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu) 
		if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP)

			eb |= 1u << BP_VECTOR;

	}

	if (vcpu->arch.rmode.active)

	if (vcpu->arch.rmode.vm86_active)

		eb = ~0;

	if (enable_ept)

		eb &= ~(1u << PF_VECTOR); /* bypass_guest_pf = 0 */
@@ -731,7 +731,7 @@ static unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu) 


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

{

	if (vcpu->arch.rmode.active)

	if (vcpu->arch.rmode.vm86_active)

		rflags |= X86_EFLAGS_IOPL | X86_EFLAGS_VM;

	vmcs_writel(GUEST_RFLAGS, rflags);

}
@@ -788,7 +788,7 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr, 
		intr_info |= INTR_INFO_DELIVER_CODE_MASK;

	}



	if (vcpu->arch.rmode.active) {

	if (vcpu->arch.rmode.vm86_active) {

		vmx->rmode.irq.pending = true;

		vmx->rmode.irq.vector = nr;

		vmx->rmode.irq.rip = kvm_rip_read(vcpu);
@@ -1363,7 +1363,7 @@ static void enter_pmode(struct kvm_vcpu *vcpu) 
	struct vcpu_vmx *vmx = to_vmx(vcpu);



	vmx->emulation_required = 1;

	vcpu->arch.rmode.active = 0;

	vcpu->arch.rmode.vm86_active = 0;



	vmcs_writel(GUEST_TR_BASE, vcpu->arch.rmode.tr.base);

	vmcs_write32(GUEST_TR_LIMIT, vcpu->arch.rmode.tr.limit);
@@ -1425,7 +1425,7 @@ static void enter_rmode(struct kvm_vcpu *vcpu) 
	struct vcpu_vmx *vmx = to_vmx(vcpu);



	vmx->emulation_required = 1;

	vcpu->arch.rmode.active = 1;

	vcpu->arch.rmode.vm86_active = 1;



	vcpu->arch.rmode.tr.base = vmcs_readl(GUEST_TR_BASE);

	vmcs_writel(GUEST_TR_BASE, rmode_tss_base(vcpu->kvm));
@@ -1594,10 +1594,10 @@ static void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) 


	vmx_fpu_deactivate(vcpu);



	if (vcpu->arch.rmode.active && (cr0 & X86_CR0_PE))

	if (vcpu->arch.rmode.vm86_active && (cr0 & X86_CR0_PE))

		enter_pmode(vcpu);



	if (!vcpu->arch.rmode.active && !(cr0 & X86_CR0_PE))

	if (!vcpu->arch.rmode.vm86_active && !(cr0 & X86_CR0_PE))

		enter_rmode(vcpu);



#ifdef CONFIG_X86_64
@@ -1655,7 +1655,7 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) 


static void vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)

{

	unsigned long hw_cr4 = cr4 | (vcpu->arch.rmode.active ?

	unsigned long hw_cr4 = cr4 | (vcpu->arch.rmode.vm86_active ?

		    KVM_RMODE_VM_CR4_ALWAYS_ON : KVM_PMODE_VM_CR4_ALWAYS_ON);



	vcpu->arch.cr4 = cr4;
@@ -1738,7 +1738,7 @@ static void vmx_set_segment(struct kvm_vcpu *vcpu, 
	struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];

	u32 ar;



	if (vcpu->arch.rmode.active && seg == VCPU_SREG_TR) {

	if (vcpu->arch.rmode.vm86_active && seg == VCPU_SREG_TR) {

		vcpu->arch.rmode.tr.selector = var->selector;

		vcpu->arch.rmode.tr.base = var->base;

		vcpu->arch.rmode.tr.limit = var->limit;
@@ -1748,7 +1748,7 @@ static void vmx_set_segment(struct kvm_vcpu *vcpu, 
	vmcs_writel(sf->base, var->base);

	vmcs_write32(sf->limit, var->limit);

	vmcs_write16(sf->selector, var->selector);

	if (vcpu->arch.rmode.active && var->s) {

	if (vcpu->arch.rmode.vm86_active && var->s) {

		/*

		 * Hack real-mode segments into vm86 compatibility.

		 */
@@ -2317,7 +2317,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) 
		goto out;

	}



	vmx->vcpu.arch.rmode.active = 0;

	vmx->vcpu.arch.rmode.vm86_active = 0;



	vmx->soft_vnmi_blocked = 0;
@@ -2455,7 +2455,7 @@ static void vmx_inject_irq(struct kvm_vcpu *vcpu) 
	KVMTRACE_1D(INJ_VIRQ, vcpu, (u32)irq, handler);



	++vcpu->stat.irq_injections;

	if (vcpu->arch.rmode.active) {

	if (vcpu->arch.rmode.vm86_active) {

		vmx->rmode.irq.pending = true;

		vmx->rmode.irq.vector = irq;

		vmx->rmode.irq.rip = kvm_rip_read(vcpu);
@@ -2493,7 +2493,7 @@ static void vmx_inject_nmi(struct kvm_vcpu *vcpu) 
	}



	++vcpu->stat.nmi_injections;

	if (vcpu->arch.rmode.active) {

	if (vcpu->arch.rmode.vm86_active) {

		vmx->rmode.irq.pending = true;

		vmx->rmode.irq.vector = NMI_VECTOR;

		vmx->rmode.irq.rip = kvm_rip_read(vcpu);
@@ -2629,7 +2629,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) 
		return kvm_mmu_page_fault(vcpu, cr2, error_code);

	}



	if (vcpu->arch.rmode.active &&

	if (vcpu->arch.rmode.vm86_active &&

	    handle_rmode_exception(vcpu, intr_info & INTR_INFO_VECTOR_MASK,

								error_code)) {

		if (vcpu->arch.halt_request) {