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authorBharat Bhushan <r65777@freescale.com>2013-04-08 00:32:12 +0000
committerAlexander Graf <agraf@suse.de>2013-04-26 20:27:02 +0200
commit092d62ee93039bfccbb3a36c69d0c3ee0966a97a (patch)
tree700128dd56aa9cddbbae33017a24a3c5cf564e3d /arch/powerpc/include/uapi
parentadccf65ca431b41733483f476e8de9e3cf171c44 (diff)
downloadop-kernel-dev-092d62ee93039bfccbb3a36c69d0c3ee0966a97a.zip
op-kernel-dev-092d62ee93039bfccbb3a36c69d0c3ee0966a97a.tar.gz
KVM: PPC: debug stub interface parameter defined
This patch defines the interface parameter for KVM_SET_GUEST_DEBUG ioctl support. Follow up patches will use this for setting up hardware breakpoints, watchpoints and software breakpoints. Also kvm_arch_vcpu_ioctl_set_guest_debug() is brought one level below. This is because I am not sure what is required for book3s. So this ioctl behaviour will not change for book3s. Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/include/uapi')
-rw-r--r--arch/powerpc/include/uapi/asm/kvm.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index c2ff99c..c0c38ed 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -272,8 +272,31 @@ struct kvm_debug_exit_arch {
/* for KVM_SET_GUEST_DEBUG */
struct kvm_guest_debug_arch {
+ struct {
+ /* H/W breakpoint/watchpoint address */
+ __u64 addr;
+ /*
+ * Type denotes h/w breakpoint, read watchpoint, write
+ * watchpoint or watchpoint (both read and write).
+ */
+#define KVMPPC_DEBUG_NONE 0x0
+#define KVMPPC_DEBUG_BREAKPOINT (1UL << 1)
+#define KVMPPC_DEBUG_WATCH_WRITE (1UL << 2)
+#define KVMPPC_DEBUG_WATCH_READ (1UL << 3)
+ __u32 type;
+ __u32 reserved;
+ } bp[16];
};
+/* Debug related defines */
+/*
+ * kvm_guest_debug->control is a 32 bit field. The lower 16 bits are generic
+ * and upper 16 bits are architecture specific. Architecture specific defines
+ * that ioctl is for setting hardware breakpoint or software breakpoint.
+ */
+#define KVM_GUESTDBG_USE_SW_BP 0x00010000
+#define KVM_GUESTDBG_USE_HW_BP 0x00020000
+
/* definition of registers in kvm_run */
struct kvm_sync_regs {
};
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