[PATCH 3/7] powerpc/watchpoint/kvm: Introduce new capability for 2nd DAWR
From: Ravi Bangoria <hidden>
Date: 2020-07-23 10:22:47
Also in:
kvm, linux-kselftest, lkml
Subsystem:
kernel virtual machine (kvm), kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Paolo Bonzini, Madhavan Srinivasan, Linus Torvalds
Introduce KVM_CAP_PPC_DAWR1 which can be used by Qemu to query whether kvm supports 2nd DAWR or not. Signed-off-by: Ravi Bangoria <redacted> --- arch/powerpc/kvm/powerpc.c | 3 +++ include/uapi/linux/kvm.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index dd7d141e33e8..f38380fd1fe9 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c@@ -676,6 +676,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) !kvmppc_hv_ops->enable_svm(NULL); break; #endif + case KVM_CAP_PPC_DAWR1: + r = cpu_has_feature(CPU_FTR_DAWR1); + break; default: r = 0; break;
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 4fdf30316582..2c3713d6526a 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h@@ -1031,6 +1031,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_PPC_SECURE_GUEST 181 #define KVM_CAP_HALT_POLL 182 #define KVM_CAP_ASYNC_PF_INT 183 +#define KVM_CAP_PPC_DAWR1 184 #ifdef KVM_CAP_IRQ_ROUTING
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2.26.2