Commit 40f1ee27 authored by Cornelia Huck's avatar Cornelia Huck
Browse files

kvm: add kvm_{vm,vcpu}_enable_cap 



Provide helper functions for enabling capabilities (on a vcpu and on a vm).

Reviewed-by: default avatarThomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: default avatarAlexander Graf <agraf@suse.de>
Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
parent b006f816

include/sysemu/kvm.h

+30 −0
Original line number Diff line number Diff line
@@ -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);