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freeze: change freeze-thaw to normal interrupt

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Change-Id: Ib4dbac28f0074595e92ef316945b37ef4bc18327
This commit is contained in:
TOIDA,Suguru
2019-08-27 13:32:37 +09:00
committed by Masamichi Takagi
parent 299d47abf5
commit ff982b8594
8 changed files with 67 additions and 33 deletions
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31
arch/arm64/kernel/cpu.c
View File

@ -119,6 +119,22 @@ static struct ihk_mc_interrupt_handler cpu_stop_handler = {
};
extern long freeze_thaw(void *nmi_ctx);
static void multi_interrupt_handler(void *priv)
{
switch (multi_intr_mode) {
case 1:
case 2: /* mode == 1or2, for FREEZER intr */
dkprintf("%s: freeze mode intr catch. (multi_intr_mode=%d)\n",
__func__, multi_intr_mode);
freeze_thaw(NULL);
break;
default:
ekprintf("%s: Unknown multi-intr-mode(%d) detected.\n",
__func__, multi_intr_mode);
break;
}
}
static void multi_nm_interrupt_handler(void *priv)
{
extern int nmi_mode;
@ -126,14 +142,6 @@ static void multi_nm_interrupt_handler(void *priv)
union arm64_cpu_local_variables *clv;
switch (nmi_mode) {
case 1:
case 2:
/* mode == 1or2, for FREEZER NMI */
dkprintf("%s: freeze mode NMI catch. (nmi_mode=%d)\n",
__func__, nmi_mode);
freeze_thaw(NULL);
break;
case 0:
/* mode == 0, for MEMDUMP NMI */
clv = get_arm64_this_cpu_local();
@ -164,6 +172,11 @@ static void multi_nm_interrupt_handler(void *priv)
}
}
static struct ihk_mc_interrupt_handler multi_intr_handler = {
.func = multi_interrupt_handler,
.priv = NULL,
};
static struct ihk_mc_interrupt_handler multi_nmi_handler = {
.func = multi_nm_interrupt_handler,
.priv = NULL,
@ -428,6 +441,8 @@ void ihk_mc_init_ap(void)
ihk_mc_register_interrupt_handler(INTRID_CPU_STOP, &cpu_stop_handler);
ihk_mc_register_interrupt_handler(INTRID_MULTI_NMI, &multi_nmi_handler);
ihk_mc_register_interrupt_handler(INTRID_MULTI_INTR,
&multi_intr_handler);
ihk_mc_register_interrupt_handler(
ihk_mc_get_vector(IHK_TLB_FLUSH_IRQ_VECTOR_START),
&remote_tlb_flush_handler);

5
arch/arm64/kernel/include/irq.h
View File

@ -1,4 +1,4 @@
/* irq.h COPYRIGHT FUJITSU LIMITED 2015-2018 */
/* irq.h COPYRIGHT FUJITSU LIMITED 2015-2019 */
#ifndef __HEADER_ARM64_IRQ_H
#define __HEADER_ARM64_IRQ_H
@ -14,7 +14,8 @@
#define INTRID_QUERY_FREE_MEM 2
#define INTRID_CPU_STOP 3
#define INTRID_TLB_FLUSH 4
#define INTRID_STACK_TRACE 6
#define INTRID_STACK_TRACE 5
#define INTRID_MULTI_INTR 6
#define INTRID_MULTI_NMI 7
/* use PPI interrupt number */

40
arch/x86_64/kernel/interrupt.S
View File

@ -1,3 +1,4 @@
/* interrupt.S COPYRIGHT FUJITSU LIMITED 2019 */
/**
* \file interrupt.S
* License details are found in the file LICENSE.
@ -91,6 +92,9 @@ vector=vector+1
.endr
common_interrupt:
#define MULT_INTR_VECTOR 242
cmp $(MULT_INTR_VECTOR),%rdi
je 1f
PUSH_ALL_REGS
movq ERROR_OFFSET(%rsp), %rdi
movq %rsp, %rsi
@ -98,6 +102,23 @@ common_interrupt:
POP_ALL_REGS
addq $8, %rsp
iretq
1:
#define PANIC_REGS 240
movq %rax,%gs:PANIC_REGS+0x00
movq %rsp,%gs:PANIC_REGS+0x08
cld
movq %gs:PANIC_REGS+0x00,%rax
PUSH_ALL_REGS
subq $40, %rsp
movq %rsp,%gs:PANIC_REGS+0x10
movq %rsp, %rdi
call freeze_thaw
cmpq $0, %rax
jnz 2f
addq $40, %rsp
2:
POP_ALL_REGS
iretq
.globl __page_fault_handler_address
__page_fault_handler_address:
@ -140,31 +161,12 @@ __freeze:
.globl nmi
nmi:
#define PANICED 232
#define PANIC_REGS 240
movq %rax,%gs:PANIC_REGS+0x00
movq %rsp,%gs:PANIC_REGS+0x08
movl nmi_mode(%rip),%eax
cmp $3,%rax
je 4f
cmp $1,%rax
je 1f
cmp $2,%rax
jne 3f
1:
cld
movq %gs:PANIC_REGS+0x00,%rax
PUSH_ALL_REGS
subq $40, %rsp
movq %rsp,%gs:PANIC_REGS+0x10
movq %rsp, %rdi
call freeze_thaw
cmpq $0, %rax
jnz 2f
addq $40, %rsp
2:
POP_ALL_REGS
iretq
3:
movq %rbx,%gs:PANIC_REGS+0x08
movq %rcx,%gs:PANIC_REGS+0x10

2
ihk

Submodule ihk updated: 7880d7786a...02ef2693af

7
kernel/freeze.c
View File

@ -1,11 +1,12 @@
/* freeze.c COPYRIGHT FUJITSU LIMITED 2019 */
#include <kmsg.h>
#include <string.h>
#include <ihk/cpu.h>
#include <ihk/debug.h>
#include <cls.h>
#include <ihk/monitor.h>
#include <init.h>
extern int nmi_mode;
extern void mod_nmi_ctx(void *, void(*)());
extern void lapic_ack();
extern void __freeze();
@ -29,7 +30,7 @@ freeze_thaw(void *nmi_ctx)
{
struct ihk_os_cpu_monitor *monitor = cpu_local_var(monitor);
if (nmi_mode == 1) {
if (multi_intr_mode == 1) {
if (monitor->status != IHK_OS_MONITOR_KERNEL_FROZEN) {
#if 1
mod_nmi_ctx(nmi_ctx, __freeze);
@ -48,7 +49,7 @@ freeze_thaw(void *nmi_ctx)
#endif
}
}
else if(nmi_mode == 2) {
else if (multi_intr_mode == 2) {
if (monitor->status == IHK_OS_MONITOR_KERNEL_FROZEN) {
monitor->status = IHK_OS_MONITOR_KERNEL_THAW;
}

2
kernel/include/init.h
View File

@ -9,6 +9,7 @@
/*
* HISTORY:
*/
/* init.h COPYRIGHT FUJITSU LIMITED 2019 */
#ifndef INIT_H
#define INIT_H
@ -38,5 +39,6 @@ extern void dynamic_debug_sysfs_setup(void);
extern char *find_command_line(char *name);
extern int num_processors;
extern int multi_intr_mode;
#endif

11
kernel/init.c
View File

@ -18,6 +18,7 @@
* 2013/06/02 balazs resolved merge conflicts with futex code
* 2013/05/20 simin exchange the dcfa stuff init/exit order in mcexec
*/
/* init.c COPYRIGHT FUJITSU LIMITED 2019 */
#include <types.h>
#include <kmsg.h>
#include <kmalloc.h>
@ -230,8 +231,17 @@ void monitor_init(void)
return;
}
int multi_intr_mode;
int nmi_mode;
static void multi_intr_init(void)
{
unsigned long phys;
phys = virt_to_phys(&multi_intr_mode);
ihk_set_multi_intr_mode_addr(phys);
}
static void nmi_init()
{
unsigned long phys;
@ -256,6 +266,7 @@ static void rest_init(void)
ap_init();
cpu_local_var_init();
multi_intr_init();
nmi_init();
uti_init();
time_init();

2
lib/include/ihk/mm.h
View File

@ -10,6 +10,7 @@
* HISTORY
* 2014/07: bgerofi: remote TLB flush handler
*/
/* mm.h COPYRIGHT FUJITSU LIMITED 2019 */
#ifndef __HEADER_GENERIC_IHK_MM_H
#define __HEADER_GENERIC_IHK_MM_H
@ -229,6 +230,7 @@ char *ihk_get_kargs(void);
int ihk_set_monitor(unsigned long addr, unsigned long size);
int ihk_set_rusage(unsigned long addr, unsigned long size);
int ihk_set_multi_intr_mode_addr(unsigned long addr);
int ihk_set_nmi_mode_addr(unsigned long addr);
int ihk_set_mckernel_do_futex(unsigned long addr);