3 files changed, 42 insertions, 2 deletions

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 6c1be10c6749..606358d67f8a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -413,6 +413,13 @@ kvm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/kvm_ioctl.sh
 $(kvm_ioctl_array): $(kvm_hdr_dir)/kvm.h $(kvm_ioctl_tbl)
         $(Q)$(SHELL) '$(kvm_ioctl_tbl)' $(kvm_hdr_dir) > $@
 
+vhost_virtio_ioctl_array := $(beauty_ioctl_outdir)/vhost_virtio_ioctl_array.c
+vhost_virtio_hdr_dir := $(srctree)/tools/include/uapi/linux
+vhost_virtio_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/vhost_virtio_ioctl.sh
+
+$(vhost_virtio_ioctl_array): $(vhost_virtio_hdr_dir)/vhost.h $(vhost_virtio_ioctl_tbl)
+        $(Q)$(SHELL) '$(vhost_virtio_ioctl_tbl)' $(vhost_virtio_hdr_dir) > $@
+
 all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
 
 $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST)
@@ -510,7 +517,8 @@ build-dir   = $(if $(__build-dir),$(__build-dir),.)
 prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioctl_array) \
         $(sndrv_pcm_ioctl_array) \
         $(sndrv_ctl_ioctl_array) \
-        $(kvm_ioctl_array)
+        $(kvm_ioctl_array) \
+        $(vhost_virtio_ioctl_array)
 
 $(OUTPUT)%.o: %.c prepare FORCE
         $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
@@ -779,7 +787,8 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
                 $(OUTPUT)$(drm_ioctl_array) \
                 $(OUTPUT)$(sndrv_ctl_ioctl_array) \
                 $(OUTPUT)$(sndrv_pcm_ioctl_array) \
-                $(OUTPUT)$(kvm_ioctl_array)
+                $(OUTPUT)$(kvm_ioctl_array) \
+                $(OUTPUT)$(vhost_virtio_ioctl_array)
         $(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
         $(python-clean)
 
diff --git a/tools/perf/trace/beauty/ioctl.c b/tools/perf/trace/beauty/ioctl.c
index 8633d96ed131..95434b27873d 100644
--- a/tools/perf/trace/beauty/ioctl.c
+++ b/tools/perf/trace/beauty/ioctl.c
@@ -88,6 +88,19 @@ static size_t ioctl__scnprintf_kvm_cmd(int nr, int dir, char *bf, size_t size)
         return scnprintf(bf, size, "(%#x, %#x, %#x)", 0xAE, nr, dir);
 }
 
+static size_t ioctl__scnprintf_vhost_virtio_cmd(int nr, int dir, char *bf, size_t size)
+{
+#include "trace/beauty/generated/ioctl/vhost_virtio_ioctl_array.c"
+        static DEFINE_STRARRAY(vhost_virtio_ioctl_cmds);
+        static DEFINE_STRARRAY(vhost_virtio_ioctl_read_cmds);
+        struct strarray *s = (dir & _IOC_READ) ? &strarray__vhost_virtio_ioctl_read_cmds : &strarray__vhost_virtio_ioctl_cmds;
+
+        if (nr < s->nr_entries && s->entries[nr] != NULL)
+                return scnprintf(bf, size, "VHOST_%s", s->entries[nr]);
+
+        return scnprintf(bf, size, "(%#x, %#x, %#x)", 0xAF, nr, dir);
+}
+
 static size_t ioctl__scnprintf_cmd(unsigned long cmd, char *bf, size_t size)
 {
         int dir  = _IOC_DIR(cmd),
@@ -104,6 +117,7 @@ static size_t ioctl__scnprintf_cmd(unsigned long cmd, char *bf, size_t size)
                 ['U' - 'A']=  { .type   = 'U', .scnprintf = ioctl__scnprintf_sndrv_ctl_cmd, },
                 ['d' - 'A'] = { .type   = 'd', .scnprintf = ioctl__scnprintf_drm_cmd, },
                 [0xAE - 'A'] = { .type  = 0xAE, .scnprintf = ioctl__scnprintf_kvm_cmd, },
+                [0xAF - 'A'] = { .type  = 0xAF, .scnprintf = ioctl__scnprintf_vhost_virtio_cmd, },
         };
         const int nr_types = ARRAY_SIZE(ioctl_types);
 
diff --git a/tools/perf/trace/beauty/vhost_virtio_ioctl.sh b/tools/perf/trace/beauty/vhost_virtio_ioctl.sh
new file mode 100755
index 000000000000..76f1de697787
--- /dev/null
+++ b/tools/perf/trace/beauty/vhost_virtio_ioctl.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+vhost_virtio_header_dir=$1
+
+printf "static const char *vhost_virtio_ioctl_cmds[] = {\n"
+regex='^#[[:space:]]*define[[:space:]]+VHOST_(\w+)[[:space:]]+_IOW?\([[:space:]]*VHOST_VIRTIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*'
+egrep $regex ${vhost_virtio_header_dir}/vhost.h | \
+        sed -r "s/$regex/\2 \1/g"       | \
+        sort | xargs printf "\t[%s] = \"%s\",\n"
+printf "};\n"
+
+printf "static const char *vhost_virtio_ioctl_read_cmds[] = {\n"
+regex='^#[[:space:]]*define[[:space:]]+VHOST_(\w+)[[:space:]]+_IOW?R\([[:space:]]*VHOST_VIRTIO[[:space:]]*,[[:space:]]*(0x[[:xdigit:]]+).*'
+egrep $regex ${vhost_virtio_header_dir}/vhost.h | \
+        sed -r "s/$regex/\2 \1/g"       | \
+        sort | xargs printf "\t[%s] = \"%s\",\n"
+printf "};\n"