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SubjectRe: [PATCH 09/16] tools headers uapi: Sync linux/kvm.h with the kernel sources
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On 04/01/19 19:33, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> To get the changes from these csets:
>
> 2bc39970e932 ("x86/kvm/hyper-v: Introduce KVM_GET_SUPPORTED_HV_CPUID")
> 2a31b9db1535 ("kvm: introduce manual dirty log reprotect")
>
> That results in these new KVM IOCTLs being supported in 'perf trace'
> when beautifying the cmd ioctl syscall argument:
>
> $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
> $ tools/perf/trace/beauty/kvm_ioctl.sh > after
> $ diff -u before after
> --- before 2019-01-04 11:44:23.506605301 -0300
> +++ after 2019-01-04 11:44:36.878730583 -0300
> @@ -86,6 +86,8 @@
> [0xbd] = "HYPERV_EVENTFD",
> [0xbe] = "GET_NESTED_STATE",
> [0xbf] = "SET_NESTED_STATE",
> + [0xc0] = "CLEAR_DIRTY_LOG",
> + [0xc1] = "GET_SUPPORTED_HV_CPUID",
> [0xe0] = "CREATE_DEVICE",
> [0xe1] = "SET_DEVICE_ATTR",
> [0xe2] = "GET_DEVICE_ATTR",
> $
>
> At some point we should be able to do something:
>
> # perf trace -e ioctl(cmd == KVM_CLEAR_DIRTY_LOG)
>
> And have just those ioctls, optionally with callchains, etc.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>

> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Jiri Olsa <jolsa@kernel.org>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
> Link: https://lkml.kernel.org/n/tip-konm3iigl2os6ritt7d2bori@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
> tools/include/uapi/linux/kvm.h | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
> index 2b7a652c9fa4..6d4ea4b6c922 100644
> --- a/tools/include/uapi/linux/kvm.h
> +++ b/tools/include/uapi/linux/kvm.h
> @@ -492,6 +492,17 @@ struct kvm_dirty_log {
> };
> };
>
> +/* for KVM_CLEAR_DIRTY_LOG */
> +struct kvm_clear_dirty_log {
> + __u32 slot;
> + __u32 num_pages;
> + __u64 first_page;
> + union {
> + void __user *dirty_bitmap; /* one bit per page */
> + __u64 padding2;
> + };
> +};
> +
> /* for KVM_SET_SIGNAL_MASK */
> struct kvm_signal_mask {
> __u32 len;
> @@ -975,6 +986,8 @@ struct kvm_ppc_resize_hpt {
> #define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
> #define KVM_CAP_EXCEPTION_PAYLOAD 164
> #define KVM_CAP_ARM_VM_IPA_SIZE 165
> +#define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166
> +#define KVM_CAP_HYPERV_CPUID 167
>
> #ifdef KVM_CAP_IRQ_ROUTING
>
> @@ -1421,6 +1434,12 @@ struct kvm_enc_region {
> #define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
> #define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
>
> +/* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT */
> +#define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
> +
> +/* Available with KVM_CAP_HYPERV_CPUID */
> +#define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
> +
> /* Secure Encrypted Virtualization command */
> enum sev_cmd_id {
> /* Guest initialization commands */
>

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