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authorAlex Bennée <alex.bennee@linaro.org>2015-07-07 17:30:02 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2015-07-21 12:50:43 +0100
commit834bf88726f0f11ddc7ff9679fc9458654c01a12 (patch)
tree9fb71c96dfab5c64a4a2c5972783bd621f266874 /arch/arm64/kvm/guest.c
parent5540546bc93b49f98a0466fe3f96615286c76574 (diff)
downloadlinux-834bf88726f0f11ddc7ff9679fc9458654c01a12.tar.gz
KVM: arm64: enable KVM_CAP_SET_GUEST_DEBUG
Finally advertise the KVM capability for SET_GUEST_DEBUG. Once arm
support is added this check can be moved to the common
kvm_vm_ioctl_check_extension() code.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64/kvm/guest.c')
-rw-r--r--arch/arm64/kvm/guest.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index 48de4f4aaa1a..6f1b249e0587 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -334,6 +334,7 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 
 #define KVM_GUESTDBG_VALID_MASK (KVM_GUESTDBG_ENABLE |    \
 			    KVM_GUESTDBG_USE_SW_BP | \
+			    KVM_GUESTDBG_USE_HW | \
 			    KVM_GUESTDBG_SINGLESTEP)
 
 /**
@@ -354,6 +355,12 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 
 	if (dbg->control & KVM_GUESTDBG_ENABLE) {
 		vcpu->guest_debug = dbg->control;
+
+		/* Hardware assisted Break and Watch points */
+		if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW) {
+			vcpu->arch.external_debug_state = dbg->arch;
+		}
+
 	} else {
 		/* If not enabled clear all flags */
 		vcpu->guest_debug = 0;