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dump: rewrite NMI handling (for resume) and fix PANIC register saving

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Change-Id: I360e9aa8efa64b6ebd99b209a5dd4ee0dc7806cf
This commit is contained in:
Balazs Gerofi
2020-02-04 23:35:30 +00:00
parent 6bef773741
commit 55faba77a5
8 changed files with 202 additions and 138 deletions
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35
kernel/mem.c
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@ -44,6 +44,7 @@
#include <limits.h>
#include <sysfs.h>
#include <ihk/debug.h>
#include <bootparam.h>
//#define DEBUG_PRINT_MEM
@ -114,29 +115,11 @@ struct pagealloc_track_entry {
ihk_spinlock_t addr_list_lock;
};
struct ihk_dump_page {
unsigned long start;
unsigned long map_count;
unsigned long map[0];
};
struct ihk_dump_page_set {
volatile unsigned int completion_flag;
unsigned int count;
unsigned long page_size;
unsigned long phy_page;
};
struct dump_pase_info {
struct ihk_dump_page_set *dump_page_set;
struct ihk_dump_page *dump_pages;
};
#define IHK_DUMP_PAGE_SET_INCOMPLETE 0
#define IHK_DUMP_PAGE_SET_COMPLETED 1
#define DUMP_LEVEL_ALL 0
#define DUMP_LEVEL_USER_UNUSED_EXCLUDE 24
/** Get the index in the map array */
#define MAP_INDEX(n) ((n) >> 6)
/** Get the bit number in a map element */
@ -2512,10 +2495,13 @@ void ihk_mc_query_mem_areas(void){
struct ihk_dump_page_set *dump_page_set;
struct dump_pase_info dump_pase_info;
/* Performed only for CPU 0 */
/*
* Performed only on the last CPU to make sure
* all other cores are already stopped.
*/
cpu_id = ihk_mc_get_processor_id();
if (0 != cpu_id)
if (num_processors - 1 != cpu_id)
return;
dump_page_set = ihk_mc_get_dump_page_set();
@ -2534,10 +2520,19 @@ void ihk_mc_query_mem_areas(void){
}
dump_page_set->completion_flag = IHK_DUMP_PAGE_SET_COMPLETED;
dkprintf("%s: IHK_DUMP_PAGE_SET_COMPLETED\n", __func__);
return;
}
void ihk_mc_clear_dump_page_completion(void)
{
struct ihk_dump_page_set *dump_page_set;
dump_page_set = ihk_mc_get_dump_page_set();
dump_page_set->completion_flag = IHK_DUMP_PAGE_SET_INCOMPLETE;
}
void ihk_mc_query_mem_user_page(void *dump_pase_info) {
struct resource_set *rset = cpu_local_var(resource_set);