[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 2/8] kvm: add set_one_reg/get_one_reg helpers
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 2/8] kvm: add set_one_reg/get_one_reg helpers |
Date: |
Sat, 10 May 2014 08:50:46 +0200 |
From: Alexey Kardashevskiy <address@hidden>
This adds QEMU wrappers for KVM_SET_ONE_REG/KVM_GET_ONE_REG ioctls.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
include/sysemu/kvm.h | 20 ++++++++++++++++++++
kvm-all.c | 18 ++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 0bee1e8..84a4f40 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -343,6 +343,26 @@ void kvm_pc_setup_irq_routing(bool pci_enabled);
void kvm_init_irq_routing(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);
+
+/**
* kvm_arch_irqchip_create:
* @KVMState: The KVMState pointer
*
diff --git a/kvm-all.c b/kvm-all.c
index 82a9119..724c423 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, ®);
+}
--
1.8.3.1
- [Qemu-devel] [PULL 0/8] KVM changes for 2014-05-08, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 1/8] target-i386: Remove unused data from local array, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 2/8] kvm: add set_one_reg/get_one_reg helpers,
Paolo Bonzini <=
- [Qemu-devel] [PULL 3/8] pci-assign: Fix a bug when map MSI-X table memory failed, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 4/8] pci-assign: limit # of msix vectors, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 5/8] target-i386: set eflags prior to calling svm_load_seg_cache() in svm_helper.c, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 6/8] target-i386: set eflags and cr0 prior to calling cpu_x86_load_seg_cache() in smm_helper.c, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 7/8] target-i386: set eflags prior to calling cpu_x86_load_seg_cache() in seg_helper.c, Paolo Bonzini, 2014/05/10
- [Qemu-devel] [PULL 8/8] target-i386: the x86 CPL is stored in CS.selector - auto update hflags accordingly., Paolo Bonzini, 2014/05/10
- Re: [Qemu-devel] [PULL 0/8] KVM changes for 2014-05-08, Cornelia Huck, 2014/05/13