diff options
author | Avi Kivity <avi@qumranet.com> | 2007-12-16 11:02:48 +0200 |
---|---|---|
committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 18:01:18 +0200 |
commit | edf884172e9828c6234b254208af04655855038d (patch) | |
tree | f5e5d1eecaed9737eced6ba60d09fe93149751c1 /drivers/kvm | |
parent | 9584bf2c93f56656dba0de8f6c75b54ca7995143 (diff) |
KVM: Move arch dependent files to new directory arch/x86/kvm/
This paves the way for multiple architecture support. Note that while
ioapic.c could potentially be shared with ia64, it is also moved.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm')
-rw-r--r-- | drivers/kvm/Kconfig | 57 | ||||
-rw-r--r-- | drivers/kvm/Makefile | 10 | ||||
-rw-r--r-- | drivers/kvm/i8259.c | 449 | ||||
-rw-r--r-- | drivers/kvm/ioapic.c | 402 | ||||
-rw-r--r-- | drivers/kvm/iodev.h | 2 | ||||
-rw-r--r-- | drivers/kvm/irq.c | 99 | ||||
-rw-r--r-- | drivers/kvm/irq.h | 196 | ||||
-rw-r--r-- | drivers/kvm/kvm.h | 289 | ||||
-rw-r--r-- | drivers/kvm/kvm_main.c | 2 | ||||
-rw-r--r-- | drivers/kvm/kvm_svm.h | 45 | ||||
-rw-r--r-- | drivers/kvm/lapic.c | 1087 | ||||
-rw-r--r-- | drivers/kvm/mmu.c | 1806 | ||||
-rw-r--r-- | drivers/kvm/mmu.h | 44 | ||||
-rw-r--r-- | drivers/kvm/paging_tmpl.h | 461 | ||||
-rw-r--r-- | drivers/kvm/segment_descriptor.h | 29 | ||||
-rw-r--r-- | drivers/kvm/svm.c | 1725 | ||||
-rw-r--r-- | drivers/kvm/svm.h | 325 | ||||
-rw-r--r-- | drivers/kvm/types.h | 54 | ||||
-rw-r--r-- | drivers/kvm/vmx.c | 2673 | ||||
-rw-r--r-- | drivers/kvm/vmx.h | 324 | ||||
-rw-r--r-- | drivers/kvm/x86.c | 3148 | ||||
-rw-r--r-- | drivers/kvm/x86.h | 602 | ||||
-rw-r--r-- | drivers/kvm/x86_emulate.c | 1913 | ||||
-rw-r--r-- | drivers/kvm/x86_emulate.h | 186 |
24 files changed, 2 insertions, 15926 deletions
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig deleted file mode 100644 index c83e1c9b512..00000000000 --- a/drivers/kvm/Kconfig +++ /dev/null @@ -1,57 +0,0 @@ -# -# KVM configuration -# -config HAVE_KVM - bool - -menuconfig VIRTUALIZATION - bool "Virtualization" - depends on HAVE_KVM || X86 - default y - ---help--- - Say Y here to get to see options for using your Linux host to run other - operating systems inside virtual machines (guests). - This option alone does not add any kernel code. - - If you say N, all options in this submenu will be skipped and disabled. - -if VIRTUALIZATION - -config KVM - tristate "Kernel-based Virtual Machine (KVM) support" - depends on HAVE_KVM && EXPERIMENTAL - select PREEMPT_NOTIFIERS - select ANON_INODES - ---help--- - Support hosting fully virtualized guest machines using hardware - virtualization extensions. You will need a fairly recent - processor equipped with virtualization extensions. You will also - need to select one or more of the processor modules below. - - This module provides access to the hardware capabilities through - a character device node named /dev/kvm. - - To compile this as a module, choose M here: the module - will be called kvm. - - If unsure, say N. - -config KVM_INTEL - tristate "KVM for Intel processors support" - depends on KVM - ---help--- - Provides support for KVM on Intel processors equipped with the VT - extensions. - -config KVM_AMD - tristate "KVM for AMD processors support" - depends on KVM - ---help--- - Provides support for KVM on AMD processors equipped with the AMD-V - (SVM) extensions. - -# OK, it's a little counter-intuitive to do this, but it puts it neatly under -# the virtualization menu. -source drivers/lguest/Kconfig - -endif # VIRTUALIZATION diff --git a/drivers/kvm/Makefile b/drivers/kvm/Makefile deleted file mode 100644 index cf18ad46e98..00000000000 --- a/drivers/kvm/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for Kernel-based Virtual Machine module -# - -kvm-objs := kvm_main.o x86.o mmu.o x86_emulate.o i8259.o irq.o lapic.o ioapic.o -obj-$(CONFIG_KVM) += kvm.o -kvm-intel-objs = vmx.o -obj-$(CONFIG_KVM_INTEL) += kvm-intel.o -kvm-amd-objs = svm.o -obj-$(CONFIG_KVM_AMD) += kvm-amd.o diff --git a/drivers/kvm/i8259.c b/drivers/kvm/i8259.c deleted file mode 100644 index b3cad632f3d..00000000000 --- a/drivers/kvm/i8259.c +++ /dev/null @@ -1,449 +0,0 @@ -/* - * 8259 interrupt controller emulation - * - * Copyright (c) 2003-2004 Fabrice Bellard - * Copyright (c) 2007 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * Authors: - * Yaozu (Eddie) Dong <Eddie.dong@intel.com> - * Port from Qemu. - */ -#include <linux/mm.h> -#include "irq.h" -#include "kvm.h" - -/* - * set irq level. If an edge is detected, then the IRR is set to 1 - */ -static inline void pic_set_irq1(struct kvm_kpic_state *s, int irq, int level) -{ - int mask; - mask = 1 << irq; - if (s->elcr & mask) /* level triggered */ - if (level) { - s->irr |= mask; - s->last_irr |= mask; - } else { - s->irr &= ~mask; - s->last_irr &= ~mask; - } - else /* edge triggered */ - if (level) { - if ((s->last_irr & mask) == 0) - s->irr |= mask; - s->last_irr |= mask; - } else - s->last_irr &= ~mask; -} - -/* - * return the highest priority found in mask (highest = smallest - * number). Return 8 if no irq - */ -static inline int get_priority(struct kvm_kpic_state *s, int mask) -{ - int priority; - if (mask == 0) - return 8; - priority = 0; - while ((mask & (1 << ((priority + s->priority_add) & 7))) == 0) - priority++; - return priority; -} - -/* - * return the pic wanted interrupt. return -1 if none - */ -static int pic_get_irq(struct kvm_kpic_state *s) -{ - int mask, cur_priority, priority; - - mask = s->irr & ~s->imr; - priority = get_priority(s, mask); - if (priority == 8) - return -1; - /* - * compute current priority. If special fully nested mode on the - * master, the IRQ coming from the slave is not taken into account - * for the priority computation. - */ - mask = s->isr; - if (s->special_fully_nested_mode && s == &s->pics_state->pics[0]) - mask &= ~(1 << 2); - cur_priority = get_priority(s, mask); - if (priority < cur_priority) - /* - * higher priority found: an irq should be generated - */ - return (priority + s->priority_add) & 7; - else - return -1; -} - -/* - * raise irq to CPU if necessary. must be called every time the active - * irq may change - */ -static void pic_update_irq(struct kvm_pic *s) -{ - int irq2, irq; - - irq2 = pic_get_irq(&s->pics[1]); - if (irq2 >= 0) { - /* - * if irq request by slave pic, signal master PIC - */ - pic_set_irq1(&s->pics[0], 2, 1); - pic_set_irq1(&s->pics[0], 2, 0); - } - irq = pic_get_irq(&s->pics[0]); - if (irq >= 0) - s->irq_request(s->irq_request_opaque, 1); - else - s->irq_request(s->irq_request_opaque, 0); -} - -void kvm_pic_update_irq(struct kvm_pic *s) -{ - pic_update_irq(s); -} - -void kvm_pic_set_irq(void *opaque, int irq, int level) -{ - struct kvm_pic *s = opaque; - - pic_set_irq1(&s->pics[irq >> 3], irq & 7, level); - pic_update_irq(s); -} - -/* - * acknowledge interrupt 'irq' - */ -static inline void pic_intack(struct kvm_kpic_state *s, int irq) -{ - if (s->auto_eoi) { - if (s->rotate_on_auto_eoi) - s->priority_add = (irq + 1) & 7; - } else - s->isr |= (1 << irq); - /* - * We don't clear a level sensitive interrupt here - */ - if (!(s->elcr & (1 << irq))) - s->irr &= ~(1 << irq); -} - -int kvm_pic_read_irq(struct kvm_pic *s) -{ - int irq, irq2, intno; - - irq = pic_get_irq(&s->pics[0]); - if (irq >= 0) { - pic_intack(&s->pics[0], irq); - if (irq == 2) { - irq2 = pic_get_irq(&s->pics[1]); - if (irq2 >= 0) - pic_intack(&s->pics[1], irq2); - else - /* - * spurious IRQ on slave controller - */ - irq2 = 7; - intno = s->pics[1].irq_base + irq2; - irq = irq2 + 8; - } else - intno = s->pics[0].irq_base + irq; - } else { - /* - * spurious IRQ on host controller - */ - irq = 7; - intno = s->pics[0].irq_base + irq; - } - pic_update_irq(s); - - return intno; -} - -void kvm_pic_reset(struct kvm_kpic_state *s) -{ - s->last_irr = 0; - s->irr = 0; - s->imr = 0; - s->isr = 0; - s->priority_add = 0; - s->irq_base = 0; - s->read_reg_select = 0; - s->poll = 0; - s->special_mask = 0; - s->init_state = 0; - s->auto_eoi = 0; - s->rotate_on_auto_eoi = 0; - s->special_fully_nested_mode = 0; - s->init4 = 0; -} - -static void pic_ioport_write(void *opaque, u32 addr, u32 val) -{ - struct kvm_kpic_state *s = opaque; - int priority, cmd, irq; - - addr &= 1; - if (addr == 0) { - if (val & 0x10) { - kvm_pic_reset(s); /* init */ - /* - * deassert a pending interrupt - */ - s->pics_state->irq_request(s->pics_state-> - irq_request_opaque, 0); - s->init_state = 1; - s->init4 = val & 1; - if (val & 0x02) - printk(KERN_ERR "single mode not supported"); - if (val & 0x08) - printk(KERN_ERR - "level sensitive irq not supported"); - } else if (val & 0x08) { - if (val & 0x04) - s->poll = 1; - if (val & 0x02) - s->read_reg_select = val & 1; - if (val & 0x40) - s->special_mask = (val >> 5) & 1; - } else { - cmd = val >> 5; - switch (cmd) { - case 0: - case 4: - s->rotate_on_auto_eoi = cmd >> 2; - break; - case 1: /* end of interrupt */ - case 5: - priority = get_priority(s, s->isr); - if (priority != 8) { - irq = (priority + s->priority_add) & 7; - s->isr &= ~(1 << irq); - if (cmd == 5) - s->priority_add = (irq + 1) & 7; - pic_update_irq(s->pics_state); - } - break; - case 3: - irq = val & 7; - s->isr &= ~(1 << irq); - pic_update_irq(s->pics_state); - break; - case 6: - s->priority_add = (val + 1) & 7; - pic_update_irq(s->pics_state); - break; - case 7: - irq = val & 7; - s->isr &= ~(1 << irq); - s->priority_add = (irq + 1) & 7; - pic_update_irq(s->pics_state); - break; - default: - break; /* no operation */ - } - } - } else - switch (s->init_state) { - case 0: /* normal mode */ - s->imr = val; - pic_update_irq(s->pics_state); - break; - case 1: - s->irq_base = val & 0xf8; - s->init_state = 2; - break; - case 2: - if (s->init4) - s->init_state = 3; - else - s->init_state = 0; - break; - case 3: - s->special_fully_nested_mode = (val >> 4) & 1; - s->auto_eoi = (val >> 1) & 1; - s->init_state = 0; - break; - } -} - -static u32 pic_poll_read(struct kvm_kpic_state *s, u32 addr1) -{ - int ret; - - ret = pic_get_irq(s); - if (ret >= 0) { - if (addr1 >> 7) { - s->pics_state->pics[0].isr &= ~(1 << 2); - s->pics_state->pics[0].irr &= ~(1 << 2); - } - s->irr &= ~(1 << ret); - s->isr &= ~(1 << ret); - if (addr1 >> 7 || ret != 2) - pic_update_irq(s->pics_state); - } else { - ret = 0x07; - pic_update_irq(s->pics_state); - } - - return ret; -} - -static u32 pic_ioport_read(void *opaque, u32 addr1) -{ - struct kvm_kpic_state *s = opaque; - unsigned int addr; - int ret; - - addr = addr1; - addr &= 1; - if (s->poll) { - ret = pic_poll_read(s, addr1); - s->poll = 0; - } else - if (addr == 0) - if (s->read_reg_select) - ret = s->isr; - else - ret = s->irr; - else - ret = s->imr; - return ret; -} - -static void elcr_ioport_write(void *opaque, u32 addr, u32 val) -{ - struct kvm_kpic_state *s = opaque; - s->elcr = val & s->elcr_mask; -} - -static u32 elcr_ioport_read(void *opaque, u32 addr1) -{ - struct kvm_kpic_state *s = opaque; - return s->elcr; -} - -static int picdev_in_range(struct kvm_io_device *this, gpa_t addr) -{ - switch (addr) { - case 0x20: - case 0x21: - case 0xa0: - case 0xa1: - case 0x4d0: - case 0x4d1: - return 1; - default: - return 0; - } -} - -static void picdev_write(struct kvm_io_device *this, - gpa_t addr, int len, const void *val) -{ - struct kvm_pic *s = this->private; - unsigned char data = *(unsigned char *)val; - - if (len != 1) { - if (printk_ratelimit()) - printk(KERN_ERR "PIC: non byte write\n"); - return; - } - switch (addr) { - case 0x20: - case 0x21: - case 0xa0: - case 0xa1: - pic_ioport_write(&s->pics[addr >> 7], addr, data); - break; - case 0x4d0: - case 0x4d1: - elcr_ioport_write(&s->pics[addr & 1], addr, data); - break; - } -} - -static void picdev_read(struct kvm_io_device *this, - gpa_t addr, int len, void *val) -{ - struct kvm_pic *s = this->private; - unsigned char data = 0; - - if (len != 1) { - if (printk_ratelimit()) - printk(KERN_ERR "PIC: non byte read\n"); - return; - } - switch (addr) { - case 0x20: - case 0x21: - case 0xa0: - case 0xa1: - data = pic_ioport_read(&s->pics[addr >> 7], addr); - break; - case 0x4d0: - case 0x4d1: - data = elcr_ioport_read(&s->pics[addr & 1], addr); - break; - } - *(unsigned char *)val = data; -} - -/* - * callback when PIC0 irq status changed - */ -static void pic_irq_request(void *opaque, int level) -{ - struct kvm *kvm = opaque; - struct kvm_vcpu *vcpu = kvm->vcpus[0]; - - pic_irqchip(kvm)->output = level; - if (vcpu) - kvm_vcpu_kick(vcpu); -} - -struct kvm_pic *kvm_create_pic(struct kvm *kvm) -{ - struct kvm_pic *s; - s = kzalloc(sizeof(struct kvm_pic), GFP_KERNEL); - if (!s) - return NULL; - s->pics[0].elcr_mask = 0xf8; - s->pics[1].elcr_mask = 0xde; - s->irq_request = pic_irq_request; - s->irq_request_opaque = kvm; - s->pics[0].pics_state = s; - s->pics[1].pics_state = s; - - /* - * Initialize PIO device - */ - s->dev.read = picdev_read; - s->dev.write = picdev_write; - s->dev.in_range = picdev_in_range; - s->dev.private = s; - kvm_io_bus_register_dev(&kvm->pio_bus, &s->dev); - return s; -} diff --git a/drivers/kvm/ioapic.c b/drivers/kvm/ioapic.c deleted file mode 100644 index f8236774c1b..00000000000 --- a/drivers/kvm/ioapic.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - * Copyright (C) 2001 MandrakeSoft S.A. - * - * MandrakeSoft S.A. - * 43, rue d'Aboukir - * 75002 Paris - France - * http://www.linux-mandrake.com/ - * http://www.mandrakesoft.com/ - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Yunhong Jiang <yunhong.jiang@intel.com> - * Yaozu (Eddie) Dong <eddie.dong@intel.com> - * Based on Xen 3.1 code. - */ - -#include "kvm.h" -#include "x86.h" - -#include <linux/kvm.h> -#include <linux/mm.h> -#include <linux/highmem.h> -#include <linux/smp.h> -#include <linux/hrtimer.h> -#include <linux/io.h> -#include <asm/processor.h> -#include <asm/page.h> -#include <asm/current.h> -#include "irq.h" -#if 0 -#define ioapic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) -#else -#define ioapic_debug(fmt, arg...) -#endif -static void ioapic_deliver(struct kvm_ioapic *vioapic, int irq); - -static unsigned long ioapic_read_indirect(struct kvm_ioapic *ioapic, - unsigned long addr, - unsigned long length) -{ - unsigned long result = 0; - - switch (ioapic->ioregsel) { - case IOAPIC_REG_VERSION: - result = ((((IOAPIC_NUM_PINS - 1) & 0xff) << 16) - | (IOAPIC_VERSION_ID & 0xff)); - break; - - case IOAPIC_REG_APIC_ID: - case IOAPIC_REG_ARB_ID: - result = ((ioapic->id & 0xf) << 24); - break; - - default: - { - u32 redir_index = (ioapic->ioregsel - 0x10) >> 1; - u64 redir_content; - - ASSERT(redir_index < IOAPIC_NUM_PINS); - - redir_content = ioapic->redirtbl[redir_index].bits; - result = (ioapic->ioregsel & 0x1) ? - (redir_content >> 32) & 0xffffffff : - redir_content & 0xffffffff; - break; - } - } - - return result; -} - -static void ioapic_service(struct kvm_ioapic *ioapic, unsigned int idx) -{ - union ioapic_redir_entry *pent; - - pent = &ioapic->redirtbl[idx]; - - if (!pent->fields.mask) { - ioapic_deliver(ioapic, idx); - if (pent->fields.trig_mode == IOAPIC_LEVEL_TRIG) - pent->fields.remote_irr = 1; - } - if (!pent->fields.trig_mode) - ioapic->irr &= ~(1 << idx); -} - -static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) -{ - unsigned index; - - switch (ioapic->ioregsel) { - case IOAPIC_REG_VERSION: - /* Writes are ignored. */ - break; - - case IOAPIC_REG_APIC_ID: - ioapic->id = (val >> 24) & 0xf; - break; - - case IOAPIC_REG_ARB_ID: - break; - - default: - index = (ioapic->ioregsel - 0x10) >> 1; - - ioapic_debug("change redir index %x val %x\n", index, val); - if (index >= IOAPIC_NUM_PINS) - return; - if (ioapic->ioregsel & 1) { - ioapic->redirtbl[index].bits &= 0xffffffff; - ioapic->redirtbl[index].bits |= (u64) val << 32; - } else { - ioapic->redirtbl[index].bits &= ~0xffffffffULL; - ioapic->redirtbl[index].bits |= (u32) val; - ioapic->redirtbl[index].fields.remote_irr = 0; - } - if (ioapic->irr & (1 << index)) - ioapic_service(ioapic, index); - break; - } -} - -static void ioapic_inj_irq(struct kvm_ioapic *ioapic, - struct kvm_vcpu *vcpu, - u8 vector, u8 trig_mode, u8 delivery_mode) -{ - ioapic_debug("irq %d trig %d deliv %d\n", vector, trig_mode, - delivery_mode); - - ASSERT((delivery_mode == IOAPIC_FIXED) || - (delivery_mode == IOAPIC_LOWEST_PRIORITY)); - - kvm_apic_set_irq(vcpu, vector, trig_mode); -} - -static u32 ioapic_get_delivery_bitmask(struct kvm_ioapic *ioapic, u8 dest, - u8 dest_mode) -{ - u32 mask = 0; - int i; - struct kvm *kvm = ioapic->kvm; - struct kvm_vcpu *vcpu; - - ioapic_debug("dest %d dest_mode %d\n", dest, dest_mode); - - if (dest_mode == 0) { /* Physical mode. */ - if (dest == 0xFF) { /* Broadcast. */ - for (i = 0; i < KVM_MAX_VCPUS; ++i) - if (kvm->vcpus[i] && kvm->vcpus[i]->arch.apic) - mask |= 1 << i; - return mask; - } - for (i = 0; i < KVM_MAX_VCPUS; ++i) { - vcpu = kvm->vcpus[i]; - if (!vcpu) - continue; - if (kvm_apic_match_physical_addr(vcpu->arch.apic, dest)) { - if (vcpu->arch.apic) - mask = 1 << i; - break; - } - } - } else if (dest != 0) /* Logical mode, MDA non-zero. */ - for (i = 0; i < KVM_MAX_VCPUS; ++i) { - vcpu = kvm->vcpus[i]; - if (!vcpu) - continue; - if (vcpu->arch.apic && - kvm_apic_match_logical_addr(vcpu->arch.apic, dest)) - mask |= 1 << vcpu->vcpu_id; - } - ioapic_debug("mask %x\n", mask); - return mask; -} - -static void ioapic_deliver(struct kvm_ioapic *ioapic, int irq) -{ - u8 dest = ioapic->redirtbl[irq].fields.dest_id; - u8 dest_mode = ioapic->redirtbl[irq].fields.dest_mode; - u8 delivery_mode = ioapic->redirtbl[irq].fields.delivery_mode; - u8 vector = ioapic->redirtbl[irq].fields.vector; - u8 trig_mode = ioapic->redirtbl[irq].fields.trig_mode; - u32 deliver_bitmask; - struct kvm_vcpu *vcpu; - int vcpu_id; - - ioapic_debug("dest=%x dest_mode=%x delivery_mode=%x " - "vector=%x trig_mode=%x\n", - dest, dest_mode, delivery_mode, vector, trig_mode); - - deliver_bitmask = ioapic_get_delivery_bitmask(ioapic, dest, dest_mode); - if (!deliver_bitmask) { - ioapic_debug("no target on destination\n"); - return; - } - - switch (delivery_mode) { - case IOAPIC_LOWEST_PRIORITY: - vcpu = kvm_get_lowest_prio_vcpu(ioapic->kvm, vector, - deliver_bitmask); - if (vcpu != NULL) - ioapic_inj_irq(ioapic, vcpu, vector, - trig_mode, delivery_mode); - else - ioapic_debug("null lowest prio vcpu: " - "mask=%x vector=%x delivery_mode=%x\n", - deliver_bitmask, vector, IOAPIC_LOWEST_PRIORITY); - break; - case IOAPIC_FIXED: - for (vcpu_id = 0; deliver_bitmask != 0; vcpu_id++) { - if (!(deliver_bitmask & (1 << vcpu_id))) - continue; - deliver_bitmask &= ~(1 << vcpu_id); - vcpu = ioapic->kvm->vcpus[vcpu_id]; - if (vcpu) { - ioapic_inj_irq(ioapic, vcpu, vector, - trig_mode, delivery_mode); - } - } - break; - - /* TODO: NMI */ - default: - printk(KERN_WARNING "Unsupported delivery mode %d\n", - delivery_mode); - break; - } -} - -void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level) -{ - u32 old_irr = ioapic->irr; - u32 mask = 1 << irq; - union ioapic_redir_entry entry; - - if (irq >= 0 && irq < IOAPIC_NUM_PINS) { - entry = ioapic->redirtbl[irq]; - level ^= entry.fields.polarity; - if (!level) - ioapic->irr &= ~mask; - else { - ioapic->irr |= mask; - if ((!entry.fields.trig_mode && old_irr != ioapic->irr) - || !entry.fields.remote_irr) - ioapic_service(ioapic, irq); - } - } -} - -static int get_eoi_gsi(struct kvm_ioapic *ioapic, int vector) -{ - int i; - - for (i = 0; i < IOAPIC_NUM_PINS; i++) - if (ioapic->redirtbl[i].fields.vector == vector) - return i; - return -1; -} - -void kvm_ioapic_update_eoi(struct kvm *kvm, int vector) -{ - struct kvm_ioapic *ioapic = kvm->arch.vioapic; - union ioapic_redir_entry *ent; - int gsi; - - gsi = get_eoi_gsi(ioapic, vector); - if (gsi == -1) { - printk(KERN_WARNING "Can't find redir item for %d EOI\n", - vector); - return; - } - - ent = &ioapic->redirtbl[gsi]; - ASSERT(ent->fields.trig_mode == IOAPIC_LEVEL_TRIG); - - ent->fields.remote_irr = 0; - if (!ent->fields.mask && (ioapic->irr & (1 << gsi))) - ioapic_deliver(ioapic, gsi); -} - -static int ioapic_in_range(struct kvm_io_device *this, gpa_t addr) -{ - struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private; - - return ((addr >= ioapic->base_address && - (addr < ioapic->base_address + IOAPIC_MEM_LENGTH))); -} - -static void ioapic_mmio_read(struct kvm_io_device *this, gpa_t addr, int len, - void *val) -{ - struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private; - u32 result; - - ioapic_debug("addr %lx\n", (unsigned long)addr); - ASSERT(!(addr & 0xf)); /* check alignment */ - - addr &= 0xff; - switch (addr) { - case IOAPIC_REG_SELECT: - result = ioapic->ioregsel; - break; - - case IOAPIC_REG_WINDOW: - result = ioapic_read_indirect(ioapic, addr, len); - break; - - default: - result = 0; - break; - } - switch (len) { - case 8: - *(u64 *) val = result; - break; - case 1: - case 2: - case 4: - memcpy(val, (char *)&result, len); - break; - default: - printk(KERN_WARNING "ioapic: wrong length %d\n", len); - } -} - -static void ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len, - const void *val) -{ - struct kvm_ioapic *ioapic = (struct kvm_ioapic *)this->private; - u32 data; - - ioapic_debug("ioapic_mmio_write addr=%p len=%d val=%p\n", - (void*)addr, len, val); - ASSERT(!(addr & 0xf)); /* check alignment */ - if (len == 4 || len == 8) - data = *(u32 *) val; - else { - printk(KERN_WARNING "ioapic: Unsupported size %d\n", len); - return; - } - - addr &= 0xff; - switch (addr) { - case IOAPIC_REG_SELECT: - ioapic->ioregsel = data; - break; - - case IOAPIC_REG_WINDOW: - ioapic_write_indirect(ioapic, data); - break; -#ifdef CONFIG_IA64 - case IOAPIC_REG_EOI: - kvm_ioapic_update_eoi(ioapic, data); - break; -#endif - - default: - break; - } -} - -void kvm_ioapic_reset(struct kvm_ioapic *ioapic) -{ - int i; - - for (i = 0; i < IOAPIC_NUM_PINS; i++) - ioapic->redirtbl[i].fields.mask = 1; - ioapic->base_address = IOAPIC_DEFAULT_BASE_ADDRESS; - ioapic->ioregsel = 0; - ioapic->irr = 0; - ioapic->id = 0; -} - -int kvm_ioapic_init(struct kvm *kvm) -{ - struct kvm_ioapic *ioapic; - - ioapic = kzalloc(sizeof(struct kvm_ioapic), GFP_KERNEL); - if (!ioapic) - return -ENOMEM; - kvm->arch.vioapic = ioapic; - kvm_ioapic_reset(ioapic); - ioapic->dev.read = ioapic_mmio_read; - ioapic->dev.write = ioapic_mmio_write; - ioapic->dev.in_range = ioapic_in_range; - ioapic->dev.private = ioapic; - ioapic->kvm = kvm; - kvm_io_bus_register_dev(&kvm->mmio_bus, &ioapic->dev); - return 0; -} diff --git a/drivers/kvm/iodev.h b/drivers/kvm/iodev.h index eb9e8a71843..c14e642027b 100644 --- a/drivers/kvm/iodev.h +++ b/drivers/kvm/iodev.h @@ -16,7 +16,7 @@ #ifndef __KVM_IODEV_H__ #define __KVM_IODEV_H__ -#include "types.h" +#include <linux/kvm_types.h> struct kvm_io_device { void (*read)(struct kvm_io_device *this, diff --git a/drivers/kvm/irq.c b/drivers/kvm/irq.c deleted file mode 100644 index 59b47c55fc7..00000000000 --- a/drivers/kvm/irq.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * irq.c: API for in kernel interrupt controller - * Copyright (c) 2007, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., 59 Temple - * Place - Suite 330, Boston, MA 02111-1307 USA. - * Authors: - * Yaozu (Eddie) Dong <Eddie.dong@intel.com> - * - */ - -#include <linux/module.h> - -#include "kvm.h" -#include "x86.h" -#include "irq.h" - -/* - * check if there is pending interrupt without - * intack. - */ -int kvm_cpu_has_interrupt(struct kvm_vcpu *v) -{ - struct kvm_pic *s; - - if (kvm_apic_has_interrupt(v) == -1) { /* LAPIC */ - if (kvm_apic_accept_pic_intr(v)) { - s = pic_irqchip(v->kvm); /* PIC */ - return s->output; - } else - return 0; - } - return 1; -} -EXPORT_SYMBOL_GPL(kvm_cpu_has_interrupt); - -/* - * Read pending interrupt vector and intack. - */ -int kvm_cpu_get_interrupt(struct kvm_vcpu *v) -{ - struct kvm_pic *s; - int vector; - - vector = kvm_get_apic_interrupt(v); /* APIC */ - if (vector == -1) { - if (kvm_apic_accept_pic_intr(v)) { - s = pic_irqchip(v->kvm); - s->output = 0; /* PIC */ - vector = kvm_pic_read_irq(s); - } |