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dm: use lapic id to set cpu affinity.

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Cpu affinty was set by pcpu id which can't be obtained
explictly by user. Use lapic id instead which can be easily
read from `/proc/cpuinfo` as `apicid`.

Tracked-On: #6690
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@linux.intel.com>
Acked-by: Wang Yu1 <yu1.wang@intel.com>
This commit is contained in:
Yuanyuan Zhao 2021-12-22 21:21:31 +08:00 committed by acrnsi-robot
parent c5537ec4d4
commit 8a44067f8b
2 changed files with 11 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
devicemodel/core/main.c
View File

@ -145,7 +145,7 @@ usage(int code)
" %*s [--enable_trusty] [--intr_monitor param_setting]\n"
" %*s [--acpidev_pt HID] [--mmiodev_pt MMIO_Regions]\n"
" %*s [--vtpm2 sock_path] [--virtio_poll interval]\n"
" %*s [--cpu_affinity pCPUs] [--lapic_pt] [--rtvm] [--windows]\n"
" %*s [--cpu_affinity lapic_id] [--lapic_pt] [--rtvm] [--windows]\n"
" %*s [--debugexit] [--logger_setting param_setting]\n"
" %*s [--ssram] <vm>\n"
" -B: bootargs for kernel\n"
@ -159,7 +159,8 @@ usage(int code)
" -v: version\n"
" --ovmf: ovmf file path\n"
" --ssram: Congfiure Software SRAM parameters\n"
" --cpu_affinity: list of pCPUs assigned to this VM\n"
" --cpu_affinity: list of Service VM vCPUs assigned to this User VM, the vCPUs are"
" identified by their local APIC IDs.\n"
" --enable_trusty: enable trusty for guest\n"
" --debugexit: enable debug exit function\n"
" --intr_monitor: enable interrupt storm monitor\n"

39
devicemodel/core/vmmapi.c
View File

@ -47,6 +47,7 @@
#include "pci_core.h"
#include "log.h"
#include "sw_load.h"
#include "acpi.h"
#define MAP_NOCORE 0
#define MAP_ALIGNED_SUPER 0
@ -93,15 +94,11 @@ static void add_one_pcpu(int pcpu_id)
/*
* example options:
* --cpu_affinity 1,2,3
* --cpu_affinity 1-3
* --cpu_affinity 1,3,4-6
* --cpu_affinity 1,3,4-6,9
*/
int acrn_parse_cpu_affinity(char *opt)
{
char *str, *cp, *cp_opt;
int pcpu_id;
int pcpu_start, pcpu_end;
int lapic_id;
cp_opt = cp = strdup(opt);
if (!cp) {
@ -111,12 +108,12 @@ int acrn_parse_cpu_affinity(char *opt)
/* white spaces within the commane line are invalid */
while (cp && isdigit(cp[0])) {
str = strpbrk(cp, ",-");
str = strpbrk(cp, ",");
/* no more entries delimited by ',' or '-' */
/* no more entries delimited by ',' */
if (!str) {
if (!dm_strtoi(cp, NULL, 10, &pcpu_id)) {
add_one_pcpu(pcpu_id);
if (!dm_strtoi(cp, NULL, 10, &lapic_id)) {
add_one_pcpu(lapic_to_pcpu(lapic_id));
}
break;
} else {
@ -125,30 +122,10 @@ int acrn_parse_cpu_affinity(char *opt)
str = strsep(&cp, ",");
/* parse the entry before ',' */
if (dm_strtoi(str, NULL, 10, &pcpu_id)) {
if (dm_strtoi(str, NULL, 10, &lapic_id)) {
goto err;
}
add_one_pcpu(pcpu_id);
}
if (*str == '-') {
str = strsep(&cp, "-");
/* parse the entry before and after '-' respectively */
if (dm_strtoi(str, NULL, 10, &pcpu_start) || dm_strtoi(cp, NULL, 10, &pcpu_end)) {
goto err;
}
if (pcpu_end <= pcpu_start) {
goto err;
}
for (; pcpu_start <= pcpu_end; pcpu_start++) {
add_one_pcpu(pcpu_start);
}
/* skip the ',' after pcpu_end */
str = strsep(&cp, ",");
add_one_pcpu(lapic_to_pcpu(lapic_id));
}
}
}