From 15711e9c927bfc08e66791cbf0ca7887c0880768 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 29 Jul 2010 14:48:08 +0200 Subject: KVM: PPC: Add get_pvinfo interface to query hypercall instructions We need to tell the guest the opcodes that make up a hypercall through interfaces that are controlled by userspace. So we need to add a call for userspace to allow it to query those opcodes so it can pass them on. This is required because the hypercall opcodes can change based on the hypervisor conditions. If we're running in hardware accelerated hypervisor mode, a hypercall looks different from when we're running without hardware acceleration. Signed-off-by: Alexander Graf Signed-off-by: Avi Kivity --- include/linux/kvm.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux/kvm.h') diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 636fc381c89..37077045970 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -414,6 +414,14 @@ struct kvm_enable_cap { __u8 pad[64]; }; +/* for KVM_PPC_GET_PVINFO */ +struct kvm_ppc_pvinfo { + /* out */ + __u32 flags; + __u32 hcall[4]; + __u8 pad[108]; +}; + #define KVMIO 0xAE /* @@ -530,6 +538,7 @@ struct kvm_enable_cap { #ifdef __KVM_HAVE_XCRS #define KVM_CAP_XCRS 56 #endif +#define KVM_CAP_PPC_GET_PVINFO 57 #ifdef KVM_CAP_IRQ_ROUTING @@ -664,6 +673,8 @@ struct kvm_clock_data { /* Available with KVM_CAP_PIT_STATE2 */ #define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2) #define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2) +/* Available with KVM_CAP_PPC_GET_PVINFO */ +#define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo) /* * ioctls for vcpu fds -- cgit v1.2.3-70-g09d2