lkml.org 
[lkml]   [2006]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 3/7] KVM: kvm data structures
Define data structures and some constants for a virtual machine.

Signed-off-by: Yaniv Kamay <yaniv@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

Index: linux-2.6/drivers/kvm/kvm.h
===================================================================
--- /dev/null
+++ linux-2.6/drivers/kvm/kvm.h
@@ -0,0 +1,206 @@
+#ifndef __KVM_H
+#define __KVM_H
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+
+#define INVALID_PAGE (~(hpa_t)0)
+#define UNMAPPED_GVA (~(gpa_t)0)
+
+#define KVM_MAX_VCPUS 1
+#define KVM_MEMORY_SLOTS 4
+#define KVM_NUM_MMU_PAGES 256
+
+#define FX_IMAGE_SIZE 512
+#define FX_IMAGE_ALIGN 16
+#define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN)
+
+/*
+ * Address types:
+ *
+ * gva - guest virtual address
+ * gpa - guest physical address
+ * gfn - guest frame number
+ * hva - host virtual address
+ * hpa - host physical address
+ * hfn - host frame number
+ */
+
+typedef unsigned long gva_t;
+typedef u64 gpa_t;
+typedef unsigned long gfn_t;
+
+typedef unsigned long hva_t;
+typedef u64 hpa_t;
+typedef unsigned long hfn_t;
+
+struct kvm_mmu_page {
+ struct list_head link;
+ hpa_t page_hpa;
+ unsigned long slot_bitmap; /* One bit set per slot which has memory
+ * in this shadow page.
+ */
+ int global; /* Set if all ptes in this page are global */
+ u64 *parent_pte;
+};
+
+struct vmcs {
+ u32 revision_id;
+ u32 abort;
+ char data[0];
+};
+
+struct vmx_msr_entry {
+ u32 index;
+ u32 reserved;
+ u64 data;
+};
+
+struct kvm_vcpu;
+
+/*
+ * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
+ * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
+ * mode.
+ */
+struct kvm_mmu {
+ void (*new_cr3)(struct kvm_vcpu *vcpu);
+ int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
+ void (*inval_page)(struct kvm_vcpu *vcpu, gva_t gva);
+ void (*free)(struct kvm_vcpu *vcpu);
+ gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
+ hpa_t root_hpa;
+ int root_level;
+ int shadow_root_level;
+};
+
+struct kvm_guest_debug {
+ int enabled;
+ unsigned long bp[4];
+ int singlestep;
+};
+
+enum {
+ VCPU_REGS_RAX = 0,
+ VCPU_REGS_RCX = 1,
+ VCPU_REGS_RDX = 2,
+ VCPU_REGS_RBX = 3,
+ VCPU_REGS_RSP = 4,
+ VCPU_REGS_RBP = 5,
+ VCPU_REGS_RSI = 6,
+ VCPU_REGS_RDI = 7,
+#ifdef __x86_64__
+ VCPU_REGS_R8 = 8,
+ VCPU_REGS_R9 = 9,
+ VCPU_REGS_R10 = 10,
+ VCPU_REGS_R11 = 11,
+ VCPU_REGS_R12 = 12,
+ VCPU_REGS_R13 = 13,
+ VCPU_REGS_R14 = 14,
+ VCPU_REGS_R15 = 15,
+#endif
+ NR_VCPU_REGS
+};
+
+struct kvm_vcpu {
+ struct kvm *kvm;
+ struct vmcs *vmcs;
+ struct mutex mutex;
+ int cpu;
+ int launched;
+ unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
+#define NR_IRQ_WORDS (256 / BITS_PER_LONG)
+ unsigned long irq_pending[NR_IRQ_WORDS];
+ unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
+ unsigned long rip; /* needs vcpu_load_rsp_rip() */
+
+ unsigned long cr2;
+ unsigned long cr3;
+ unsigned long cr8;
+ u64 shadow_efer;
+ u64 apic_base;
+ struct vmx_msr_entry *guest_msrs;
+ struct vmx_msr_entry *host_msrs;
+
+ struct list_head free_pages;
+ struct kvm_mmu_page page_header_buf[KVM_NUM_MMU_PAGES];
+ struct kvm_mmu mmu;
+
+ struct kvm_guest_debug guest_debug;
+
+ char fx_buf[FX_BUF_SIZE];
+ char *host_fx_image;
+ char *guest_fx_image;
+
+ int mmio_needed;
+ int mmio_read_completed;
+ int mmio_is_write;
+ int mmio_size;
+ unsigned char mmio_data[8];
+ gpa_t mmio_phys_addr;
+
+ struct{
+ int active;
+ u8 save_iopl;
+ struct {
+ unsigned long base;
+ u32 limit;
+ u32 ar;
+ } tr;
+ } rmode;
+};
+
+struct kvm_memory_slot {
+ gfn_t base_gfn;
+ unsigned long npages;
+ unsigned long flags;
+ struct page **phys_mem;
+ unsigned long *dirty_bitmap;
+};
+
+struct kvm {
+ spinlock_t lock; /* protects everything except vcpus */
+ int nmemslots;
+ struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
+ struct list_head active_mmu_pages;
+ struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
+ int memory_config_version;
+ int busy;
+};
+
+struct kvm_stat {
+ u32 pf_fixed;
+ u32 pf_guest;
+ u32 tlb_flush;
+ u32 invlpg;
+
+ u32 exits;
+ u32 io_exits;
+ u32 mmio_exits;
+ u32 signal_exits;
+ u32 irq_exits;
+};
+
+extern struct kvm_stat kvm_stat;
+
+#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
+#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
+
+void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
+int kvm_mmu_init(struct kvm_vcpu *vcpu);
+
+int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
+void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
+
+hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
+#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
+#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
+static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
+hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
+
+extern hpa_t bad_page_address;
+
+#endif
--
error compiling committee.c: too many arguments to function

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-10-19 15:53    [W:0.247 / U:7.604 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site