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[Qemu-devel] [PULL 1/3] kvm: add kvm_{vm,vcpu}_enable_cap
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From: |
Cornelia Huck |
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Subject: |
[Qemu-devel] [PULL 1/3] kvm: add kvm_{vm,vcpu}_enable_cap |
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Date: |
Wed, 30 Apr 2014 15:58:20 +0200 |
Provide helper functions for enabling capabilities (on a vcpu and on a vm).
Reviewed-by: Thomas Huth <address@hidden>
Reviewed-by: Alexander Graf <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
include/sysemu/kvm.h | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 0bee1e8..192fe89 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -294,6 +294,36 @@ bool kvm_arch_stop_on_emulation_error(CPUState *cpu);
int kvm_check_extension(KVMState *s, unsigned int extension);
+#define kvm_vm_enable_cap(s, capability, cap_flags, ...) \
+ ({ \
+ struct kvm_enable_cap cap = { \
+ .cap = capability, \
+ .flags = cap_flags, \
+ }; \
+ uint64_t args_tmp[] = { __VA_ARGS__ }; \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(args_tmp) && \
+ i < ARRAY_SIZE(cap.args); i++) { \
+ cap.args[i] = args_tmp[i]; \
+ } \
+ kvm_vm_ioctl(s, KVM_ENABLE_CAP, &cap); \
+ })
+
+#define kvm_vcpu_enable_cap(cpu, capability, cap_flags, ...) \
+ ({ \
+ struct kvm_enable_cap cap = { \
+ .cap = capability, \
+ .flags = cap_flags, \
+ }; \
+ uint64_t args_tmp[] = { __VA_ARGS__ }; \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(args_tmp) && \
+ i < ARRAY_SIZE(cap.args); i++) { \
+ cap.args[i] = args_tmp[i]; \
+ } \
+ kvm_vcpu_ioctl(cpu, KVM_ENABLE_CAP, &cap); \
+ })
+
uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
uint32_t index, int reg);
--
1.7.9.5