Commit 0b76e20b authored Dec 22, 2006 by Avi Kivity Committed by Linus Torvalds Dec 22, 2006

[PATCH] KVM: API versioning



Add compile-time and run-time API versioning.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 0f8e3d36

drivers/kvm/kvm_main.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1603,6 +1603,9 @@ static long kvm_dev_ioctl(struct file *filp,
		int r = -EINVAL;

		switch (ioctl) {
		case KVM_GET_API_VERSION:
		r = KVM_API_VERSION;
		break;
		case KVM_CREATE_VCPU: {
		r = kvm_dev_ioctl_create_vcpu(kvm, arg);
		if (r)

include/linux/kvm.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -11,6 +11,8 @@
		#include <asm/types.h>
		#include <linux/ioctl.h>

		#define KVM_API_VERSION 1

		/*
		* Architectural interrupt line count, and the size of the bitmap needed
		* to hold them.
		@@ -209,6 +211,7 @@ struct kvm_dirty_log {

		#define KVMIO 0xAE

		#define KVM_GET_API_VERSION _IO(KVMIO, 1)
		#define KVM_RUN _IOWR(KVMIO, 2, struct kvm_run)
		#define KVM_GET_REGS _IOWR(KVMIO, 3, struct kvm_regs)
		#define KVM_SET_REGS _IOW(KVMIO, 4, struct kvm_regs)