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[Qemu-ppc] [PATCH 1/4] kvm: Add set_one_reg/get_one_reg helpers
From: |
Alexey Kardashevskiy |
Subject: |
[Qemu-ppc] [PATCH 1/4] kvm: Add set_one_reg/get_one_reg helpers |
Date: |
Fri, 4 Apr 2014 00:14:48 +1100 |
This adds QEMU wrappers for KVM_SET_ONE_REG/KVM_GET_ONE_REG ioctls.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
---
Changes:
v3:
* changed comments
v2:
* added Doc Comments
* removed error_print
---
include/sysemu/kvm.h | 21 +++++++++++++++++++++
kvm-all.c | 18 ++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 0bee1e8..c3471de 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -353,4 +353,25 @@ void kvm_init_irq_routing(KVMState *s);
* > 0: irq chip was created
*/
int kvm_arch_irqchip_create(KVMState *s);
+
+/**
+ * kvm_set_one_reg - set a register value in KVM via KVM_SET_ONE_REG ioctl
+ * @id: The register ID
+ * @addr: The pointer to a value must point to a variable of the correct
+ * type/size for the register being accessed.
+ *
+ * Returns: 0 on success, or a negative errno on failure.
+ */
+int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr);
+
+/**
+ * kvm_get_one_reg - get a register value from KVM via KVM_GET_ONE_REG ioctl
+ * @id: The register ID
+ * @addr: The pointer to a value must point to a variable of the correct
+ * type/size for the register being accessed.
+ *
+ * Returns: 0 on success, or a negative errno on failure.
+ */
+int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr);
+
#endif
diff --git a/kvm-all.c b/kvm-all.c
index cd4111d..fc30181 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -2114,3 +2114,21 @@ int kvm_create_device(KVMState *s, uint64_t type, bool
test)
return test ? 0 : create_dev.fd;
}
+
+int kvm_set_one_reg(CPUState *cs, uint64_t id, void *addr)
+{
+ struct kvm_one_reg reg = {
+ .id = id,
+ .addr = (uintptr_t)addr,
+ };
+ return kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®);
+}
+
+int kvm_get_one_reg(CPUState *cs, uint64_t id, void *addr)
+{
+ struct kvm_one_reg reg = {
+ .id = id,
+ .addr = (uintptr_t)addr,
+ };
+ return kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®);
+}
--
1.8.4.rc4
- [Qemu-ppc] [PATCH 0/4] power7/8 migration patches, Alexey Kardashevskiy, 2014/04/03
- [Qemu-ppc] [PATCH 1/4] kvm: Add set_one_reg/get_one_reg helpers,
Alexey Kardashevskiy <=
- [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexey Kardashevskiy, 2014/04/03
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexander Graf, 2014/04/10
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexey Kardashevskiy, 2014/04/10
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexander Graf, 2014/04/11
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Benjamin Herrenschmidt, 2014/04/11
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexander Graf, 2014/04/11
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexander Graf, 2014/04/11
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexey Kardashevskiy, 2014/04/11
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Alexander Graf, 2014/04/12
- Re: [Qemu-ppc] [PATCH 4/4] spapr: Add support for time base offset migration, Benjamin Herrenschmidt, 2014/04/12