From c1a5d4f990ce034bcb19aebbb910c07019e60f6b Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Sun, 25 Nov 2007 14:12:03 +0200 Subject: KVM: Replace #GP injection by the generalized exception queue Signed-off-by: Avi Kivity --- drivers/kvm/x86.c | 43 +++++++++++++++++++------------------------ 1 file changed, 19 insertions(+), 24 deletions(-) (limited to 'drivers/kvm/x86.c') diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c index dc007a32a883..6deb052b5f93 100644 --- a/drivers/kvm/x86.c +++ b/drivers/kvm/x86.c @@ -128,11 +128,6 @@ void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data) } EXPORT_SYMBOL_GPL(kvm_set_apic_base); -static void inject_gp(struct kvm_vcpu *vcpu) -{ - kvm_x86_ops->inject_gp(vcpu, 0); -} - void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr) { WARN_ON(vcpu->exception.pending); @@ -232,20 +227,20 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) if (cr0 & CR0_RESERVED_BITS) { printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n", cr0, vcpu->cr0); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD)) { printk(KERN_DEBUG "set_cr0: #GP, CD == 0 && NW == 1\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE)) { printk(KERN_DEBUG "set_cr0: #GP, set PG flag " "and a clear PE flag\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } @@ -257,14 +252,14 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) if (!is_pae(vcpu)) { printk(KERN_DEBUG "set_cr0: #GP, start paging " "in long mode while PAE is disabled\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l); if (cs_l) { printk(KERN_DEBUG "set_cr0: #GP, start paging " "in long mode while CS.L == 1\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } @@ -273,7 +268,7 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) if (is_pae(vcpu) && !load_pdptrs(vcpu, vcpu->cr3)) { printk(KERN_DEBUG "set_cr0: #GP, pdptrs " "reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } @@ -299,7 +294,7 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) { if (cr4 & CR4_RESERVED_BITS) { printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } @@ -307,19 +302,19 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) if (!(cr4 & X86_CR4_PAE)) { printk(KERN_DEBUG "set_cr4: #GP, clearing PAE while " "in long mode\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } } else if (is_paging(vcpu) && !is_pae(vcpu) && (cr4 & X86_CR4_PAE) && !load_pdptrs(vcpu, vcpu->cr3)) { printk(KERN_DEBUG "set_cr4: #GP, pdptrs reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if (cr4 & X86_CR4_VMXE) { printk(KERN_DEBUG "set_cr4: #GP, setting VMXE\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } kvm_x86_ops->set_cr4(vcpu, cr4); @@ -340,7 +335,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) if (is_long_mode(vcpu)) { if (cr3 & CR3_L_MODE_RESERVED_BITS) { printk(KERN_DEBUG "set_cr3: #GP, reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } } else { @@ -348,13 +343,13 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) if (cr3 & CR3_PAE_RESERVED_BITS) { printk(KERN_DEBUG "set_cr3: #GP, reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if (is_paging(vcpu) && !load_pdptrs(vcpu, cr3)) { printk(KERN_DEBUG "set_cr3: #GP, pdptrs " "reserved bits\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } } @@ -375,7 +370,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) * to debug) behavior on the guest side. */ if (unlikely(!gfn_to_memslot(vcpu->kvm, cr3 >> PAGE_SHIFT))) - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); else { vcpu->cr3 = cr3; vcpu->mmu.new_cr3(vcpu); @@ -388,7 +383,7 @@ void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8) { if (cr8 & CR8_RESERVED_BITS) { printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if (irqchip_in_kernel(vcpu->kvm)) @@ -436,14 +431,14 @@ static void set_efer(struct kvm_vcpu *vcpu, u64 efer) if (efer & EFER_RESERVED_BITS) { printk(KERN_DEBUG "set_efer: 0x%llx #GP, reserved bits\n", efer); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } if (is_paging(vcpu) && (vcpu->shadow_efer & EFER_LME) != (efer & EFER_LME)) { printk(KERN_DEBUG "set_efer: #GP, change LME while paging\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return; } @@ -2047,7 +2042,7 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, * String I/O in reverse. Yuck. Kill the guest, fix later. */ pr_unimpl(vcpu, "guest string pio down\n"); - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); return 1; } vcpu->run->io.count = now; @@ -2062,7 +2057,7 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, vcpu->pio.guest_pages[i] = page; mutex_unlock(&vcpu->kvm->lock); if (!page) { - inject_gp(vcpu); + kvm_inject_gp(vcpu, 0); free_pio_guest_pages(vcpu); return 1; } -- cgit v1.2.3-55-g7522