diff options
Diffstat (limited to 'arch/um/os-Linux/skas/process.c')
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 87d3129e7362..b24db6017ded 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -5,6 +5,7 @@ */ #include <stdlib.h> +#include <stdbool.h> #include <unistd.h> #include <sched.h> #include <errno.h> @@ -251,7 +252,7 @@ static int userspace_tramp(void *stack) signal(SIGTERM, SIG_DFL); signal(SIGWINCH, SIG_IGN); - fd = phys_mapping(to_phys(__syscall_stub_start), &offset); + fd = phys_mapping(uml_to_phys(__syscall_stub_start), &offset); addr = mmap64((void *) STUB_CODE, UM_KERN_PAGE_SIZE, PROT_EXEC, MAP_FIXED | MAP_PRIVATE, fd, offset); if (addr == MAP_FAILED) { @@ -261,7 +262,7 @@ static int userspace_tramp(void *stack) } if (stack != NULL) { - fd = phys_mapping(to_phys(stack), &offset); + fd = phys_mapping(uml_to_phys(stack), &offset); addr = mmap((void *) STUB_DATA, UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, fd, offset); @@ -534,7 +535,7 @@ int copy_context_skas0(unsigned long new_stack, int pid) struct stub_data *data = (struct stub_data *) current_stack; struct stub_data *child_data = (struct stub_data *) new_stack; unsigned long long new_offset; - int new_fd = phys_mapping(to_phys((void *)new_stack), &new_offset); + int new_fd = phys_mapping(uml_to_phys((void *)new_stack), &new_offset); /* * prepare offset and fd of child's stack as argument for parent's @@ -707,10 +708,24 @@ void halt_skas(void) UML_LONGJMP(&initial_jmpbuf, INIT_JMP_HALT); } +static bool noreboot; + +static int __init noreboot_cmd_param(char *str, int *add) +{ + noreboot = true; + return 0; +} + +__uml_setup("noreboot", noreboot_cmd_param, +"noreboot\n" +" Rather than rebooting, exit always, akin to QEMU's -no-reboot option.\n" +" This is useful if you're using CONFIG_PANIC_TIMEOUT in order to catch\n" +" crashes in CI\n"); + void reboot_skas(void) { block_signals_trace(); - UML_LONGJMP(&initial_jmpbuf, INIT_JMP_REBOOT); + UML_LONGJMP(&initial_jmpbuf, noreboot ? INIT_JMP_HALT : INIT_JMP_REBOOT); } void __switch_mm(struct mm_id *mm_idp) |