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mcctrl_perf_set : validate os input & check cpu info

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Change-Id: If308013746ff6dce03fa8e0eb1ebaca1cb2a4a64
This commit is contained in:
tinhnt86
2020-10-08 16:44:53 +07:00
committed by Masamichi Takagi
parent 8c0b2ab6ce
commit 550c6cc5fb
1 changed files with 14 additions and 2 deletions
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16
executer/kernel/mcctrl/control.c
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@@ -2203,22 +2203,34 @@ struct mcctrl_perf_ctrl_desc {
*/ */
long mcctrl_perf_set(ihk_os_t os, struct ihk_perf_event_attr *__user arg) long mcctrl_perf_set(ihk_os_t os, struct ihk_perf_event_attr *__user arg)
{ {
struct mcctrl_usrdata *usrdata = ihk_host_os_get_usrdata(os); struct mcctrl_usrdata *usrdata = NULL;
struct ikc_scd_packet isp; struct ikc_scd_packet isp;
struct perf_ctrl_desc *perf_desc; struct perf_ctrl_desc *perf_desc;
struct ihk_perf_event_attr attr; struct ihk_perf_event_attr attr;
struct ihk_cpu_info *info = ihk_os_get_cpu_info(os); struct ihk_cpu_info *info = NULL;
int ret = 0; int ret = 0;
int i = 0, j = 0; int i = 0, j = 0;
int need_free; int need_free;
int num_registered = 0; int num_registered = 0;
int err = 0; int err = 0;
if (!os || ihk_host_validate_os(os)) {
return -EINVAL;
}
usrdata = ihk_host_os_get_usrdata(os);
if (!usrdata) { if (!usrdata) {
pr_err("%s: error: mcctrl_usrdata not found\n", __func__); pr_err("%s: error: mcctrl_usrdata not found\n", __func__);
return -EINVAL; return -EINVAL;
} }
info = ihk_os_get_cpu_info(os);
if (!info) {
pr_err("%s: error: cannot get cpu info\n", __func__);
return -EINVAL;
}
for (i = 0; i < usrdata->perf_event_num; i++) { for (i = 0; i < usrdata->perf_event_num; i++) {
ret = copy_from_user(&attr, &arg[i], ret = copy_from_user(&attr, &arg[i],
sizeof(struct ihk_perf_event_attr)); sizeof(struct ihk_perf_event_attr));