From 15711e9c927bfc08e66791cbf0ca7887c0880768 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
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 <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
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 636fc381c897..37077045970b 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
From 7b4203e8cb5c5d9bc49da62b7a6fa4ba876a1b3f Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Mon, 30 Aug 2010 13:50:45 +0200
Subject: KVM: PPC: Expose level based interrupt cap
Now that we have all the level interrupt magic in place, let's
expose the capability to user space, so it can make use of it!
Signed-off-by: Alexander Graf <agraf@suse.de>
---
arch/powerpc/kvm/powerpc.c | 1 +
include/linux/kvm.h | 1 +
2 files changed, 2 insertions(+)
(limited to 'include/linux/kvm.h')
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 028891c0baff..2f87a1627f6c 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -192,6 +192,7 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PPC_SEGSTATE:
case KVM_CAP_PPC_PAIRED_SINGLES:
case KVM_CAP_PPC_UNSET_IRQ:
+ case KVM_CAP_PPC_IRQ_LEVEL:
case KVM_CAP_ENABLE_CAP:
case KVM_CAP_PPC_OSI:
case KVM_CAP_PPC_GET_PVINFO:
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 37077045970b..919ae53adc5c 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -539,6 +539,7 @@ struct kvm_ppc_pvinfo {
#define KVM_CAP_XCRS 56
#endif
#define KVM_CAP_PPC_GET_PVINFO 57
+#define KVM_CAP_PPC_IRQ_LEVEL 58
#ifdef KVM_CAP_IRQ_ROUTING
--
cgit v1.2.3-70-g09d2