gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

prepare_process(): pass cpu_set in program_load_desc

Browse Source
This commit is contained in:
Balazs Gerofi
2016-12-09 16:32:20 +09:00
parent 7d13bfb14e
commit fdcf766337
5 changed files with 33 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
executer/include/uprotocol.h
View File

@ -79,6 +79,10 @@ struct program_image_section {
#define SHELL_PATH_MAX_LEN 1024
#define MCK_RLIM_MAX 20
#define PLD_CPU_SET_MAX_CPUS 1024
typedef unsigned long __cpu_set_unit;
#define PLD_CPU_SET_SIZE (PLD_CPU_SET_MAX_CPUS / (8 * sizeof(__cpu_set_unit)))
struct program_load_desc {
int num_sections;
int status;
@ -108,6 +112,7 @@ struct program_load_desc {
struct rlimit rlimit[MCK_RLIM_MAX];
unsigned long interp_align;
char shell_path[SHELL_PATH_MAX_LEN];
__cpu_set_unit cpu_set[PLD_CPU_SET_SIZE];
struct program_image_section sections[0];
};

4
kernel/host.c
View File

@ -393,7 +393,9 @@ static int process_msg_prepare_process(unsigned long rphys)
memcpy_long(pn, p, sizeof(struct program_load_desc)
+ sizeof(struct program_image_section) * n);
if((thread = create_thread(p->entry)) == NULL){
if ((thread = create_thread(p->entry,
(unsigned long *)&p->cpu_set,
sizeof(p->cpu_set))) == NULL) {
kfree(pn);
ihk_mc_unmap_virtual(p, npages, 1);
ihk_mc_unmap_memory(NULL, phys, sz);

3
kernel/include/process.h
View File

@ -700,7 +700,8 @@ static inline int has_cap_sys_admin(struct thread *th)
void hold_address_space(struct address_space *);
void release_address_space(struct address_space *);
struct thread *create_thread(unsigned long user_pc);
struct thread *create_thread(unsigned long user_pc,
unsigned long *__cpu_set, size_t cpu_set_size);
struct thread *clone_thread(struct thread *org, unsigned long pc,
unsigned long sp, int clone_flags);
void destroy_thread(struct thread *thread);

5
kernel/include/syscall.h
View File

@ -149,6 +149,10 @@ struct program_image_section {
#define MCK_RLIMIT_SIGPENDING 14
#define MCK_RLIMIT_STACK 15
#define PLD_CPU_SET_MAX_CPUS 1024
typedef unsigned long __cpu_set_unit;
#define PLD_CPU_SET_SIZE (PLD_CPU_SET_MAX_CPUS / (8 * sizeof(__cpu_set_unit)))
struct program_load_desc {
int num_sections;
int status;
@ -178,6 +182,7 @@ struct program_load_desc {
struct rlimit rlimit[MCK_RLIM_MAX];
unsigned long interp_align;
char shell_path[SHELL_PATH_MAX_LEN];
__cpu_set_unit cpu_set[PLD_CPU_SET_SIZE];
struct program_image_section sections[0];
};

21
kernel/process.c
View File

@ -233,13 +233,15 @@ init_process_vm(struct process *owner, struct address_space *asp, struct process
return 0;
}
struct thread *
create_thread(unsigned long user_pc)
struct thread *create_thread(unsigned long user_pc,
unsigned long *__cpu_set, size_t cpu_set_size)
{
struct thread *thread;
struct process *proc;
struct process_vm *vm = NULL;
struct address_space *asp = NULL;
int cpu;
int cpu_set_empty = 1;
thread = ihk_mc_alloc_pages(KERNEL_STACK_NR_PAGES, IHK_MC_AP_NOWAIT);
if (!thread)
@ -255,7 +257,20 @@ create_thread(unsigned long user_pc)
memset(vm, 0, sizeof(struct process_vm));
init_process(proc, cpu_local_var(resource_set)->pid1);
if (1) {
/* Use requested CPU cores */
for_each_set_bit(cpu, __cpu_set, cpu_set_size * BITS_PER_BYTE) {
if (cpu >= num_processors) {
kprintf("%s: invalid CPU requested in initial cpu_set\n",
__FUNCTION__);
goto err;
}
CPU_SET(cpu, &thread->cpu_set);
cpu_set_empty = 0;
}
/* Default allows all cores */
if (cpu_set_empty) {
struct ihk_mc_cpu_info *infop;
int i;