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author | kib <kib@FreeBSD.org> | 2015-08-18 09:09:39 +0000 |
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committer | kib <kib@FreeBSD.org> | 2015-08-18 09:09:39 +0000 |
commit | c731ecde39edf20ad064264d3030ead0ae1fb283 (patch) | |
tree | 4fe42239d0a468288d8ced7c5fb69c4bae764a14 | |
parent | 47eb9e91e4cef40c34486f99c1fe7584fc41e91c (diff) | |
download | FreeBSD-src-c731ecde39edf20ad064264d3030ead0ae1fb283.zip FreeBSD-src-c731ecde39edf20ad064264d3030ead0ae1fb283.tar.gz |
MFC r286288:
Give large kernel stack to the initial thread.
-rw-r--r-- | sys/i386/i386/genassym.c | 1 | ||||
-rw-r--r-- | sys/i386/i386/locore.s | 4 | ||||
-rw-r--r-- | sys/i386/i386/machdep.c | 2 | ||||
-rw-r--r-- | sys/i386/include/param.h | 5 |
4 files changed, 9 insertions, 3 deletions
diff --git a/sys/i386/i386/genassym.c b/sys/i386/i386/genassym.c index 0994be9..ac06cc4 100644 --- a/sys/i386/i386/genassym.c +++ b/sys/i386/i386/genassym.c @@ -103,6 +103,7 @@ ASSYM(V_SYSCALL, offsetof(struct vmmeter, v_syscall)); ASSYM(V_INTR, offsetof(struct vmmeter, v_intr)); /* ASSYM(UPAGES, UPAGES);*/ ASSYM(KSTACK_PAGES, KSTACK_PAGES); +ASSYM(TD0_KSTACK_PAGES, TD0_KSTACK_PAGES); ASSYM(PAGE_SIZE, PAGE_SIZE); ASSYM(NPTEPG, NPTEPG); ASSYM(NPDEPG, NPDEPG); diff --git a/sys/i386/i386/locore.s b/sys/i386/i386/locore.s index 7138ab4..4cbe160 100644 --- a/sys/i386/i386/locore.s +++ b/sys/i386/i386/locore.s @@ -731,7 +731,7 @@ no_kernend: movl %esi,R(IdlePTD) /* Allocate KSTACK */ - ALLOCPAGES(KSTACK_PAGES) + ALLOCPAGES(TD0_KSTACK_PAGES) movl %esi,R(p0kpa) addl $KERNBASE, %esi movl %esi, R(proc0kstack) @@ -800,7 +800,7 @@ no_kernend: /* Map proc0's KSTACK in the physical way ... */ movl R(p0kpa), %eax - movl $(KSTACK_PAGES), %ecx + movl $(TD0_KSTACK_PAGES), %ecx fillkptphys($PG_RW) /* Map ISA hole */ diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 4d7df05..3244be6 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -3153,7 +3153,7 @@ init386(first) #endif thread0.td_kstack = proc0kstack; - thread0.td_kstack_pages = KSTACK_PAGES; + thread0.td_kstack_pages = TD0_KSTACK_PAGES; /* * This may be done better later if it gets more high level diff --git a/sys/i386/include/param.h b/sys/i386/include/param.h index b3fd85f..f7968f8 100644 --- a/sys/i386/include/param.h +++ b/sys/i386/include/param.h @@ -114,6 +114,11 @@ #define KSTACK_PAGES 2 /* Includes pcb! */ #endif #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ +#if KSTACK_PAGES < 4 +#define TD0_KSTACK_PAGES 4 +#else +#define TD0_KSTACK_PAGES KSTACK_PAGES +#endif /* * Ceiling on amount of swblock kva space, can be changed via |