summaryrefslogtreecommitdiffstats
path: root/include/linux/kvm.h
diff options
context:
space:
mode:
authorHe, Qing <qing.he@intel.com>2007-08-05 10:49:16 +0300
committerAvi Kivity <avi@qumranet.com>2007-10-13 10:18:25 +0200
commit6bf9e962d14deb9e460afbbfd83ea2f450325c2d (patch)
tree050b2be2fcded255afbb2512ed9c07adbd3f5b0f /include/linux/kvm.h
parentc52fb35a8b5dada749d35fbe15ac1f9857b22896 (diff)
downloadlinux-stable-6bf9e962d14deb9e460afbbfd83ea2f450325c2d.tar.gz
linux-stable-6bf9e962d14deb9e460afbbfd83ea2f450325c2d.tar.bz2
linux-stable-6bf9e962d14deb9e460afbbfd83ea2f450325c2d.zip
KVM: in-kernel IOAPIC save and restore support
This patch adds support for in-kernel ioapic save and restore (to and from userspace). It uses the same get/set_irqchip ioctl as in-kernel PIC. Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/linux/kvm.h')
-rw-r--r--include/linux/kvm.h29
1 files changed, 28 insertions, 1 deletions
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 6560f11870fd..42d15150d7a3 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -45,7 +45,7 @@ struct kvm_irq_level {
__u32 level;
};
-/* for KVM_GET_IRQCHIP / KVM_SET_IRQCHIP */
+/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
struct kvm_pic_state {
__u8 last_irr; /* edge detection */
__u8 irr; /* interrupt request register */
@@ -65,9 +65,35 @@ struct kvm_pic_state {
__u8 elcr_mask;
};
+#define KVM_IOAPIC_NUM_PINS 24
+struct kvm_ioapic_state {
+ __u64 base_address;
+ __u32 ioregsel;
+ __u32 id;
+ __u32 irr;
+ __u32 pad;
+ union {
+ __u64 bits;
+ struct {
+ __u8 vector;
+ __u8 delivery_mode:3;
+ __u8 dest_mode:1;
+ __u8 delivery_status:1;
+ __u8 polarity:1;
+ __u8 remote_irr:1;
+ __u8 trig_mode:1;
+ __u8 mask:1;
+ __u8 reserve:7;
+ __u8 reserved[4];
+ __u8 dest_id;
+ } fields;
+ } redirtbl[KVM_IOAPIC_NUM_PINS];
+};
+
enum kvm_irqchip_id {
KVM_IRQCHIP_PIC_MASTER = 0,
KVM_IRQCHIP_PIC_SLAVE = 1,
+ KVM_IRQCHIP_IOAPIC = 2,
};
struct kvm_irqchip {
@@ -76,6 +102,7 @@ struct kvm_irqchip {
union {
char dummy[512]; /* reserving space */
struct kvm_pic_state pic;
+ struct kvm_ioapic_state ioapic;
} chip;
};