diff options
Diffstat (limited to 'system')
| -rw-r--r-- | system/alpha/console/console.c | 35 |
1 files changed, 12 insertions, 23 deletions
diff --git a/system/alpha/console/console.c b/system/alpha/console/console.c index c616c1cdb..6d0020370 100644 --- a/system/alpha/console/console.c +++ b/system/alpha/console/console.c @@ -69,6 +69,8 @@ #define PAGE_SIZE (8192) +#define KSTACK_REGION_VA 0x20040000 + #define KSEG 0xfffffc0000000000 #define K1BASE 0xfffffc8000000000 #define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG) @@ -513,7 +515,7 @@ unixBoot(int argc, char **argv) /* Set up third_kernel after it's loaded, when we know where it is */ kern_first_page = (KSEG_TO_PHYS(m5Conf.kernStart)/PAGE_SIZE); - kernel_end = ksp_top = ROUNDUP8K(m5Conf.kernEnd); + kernel_end = ROUNDUP8K(m5Conf.kernEnd); bootadr = m5Conf.entryPoint; printf_lock("HWRPB 0x%x l1pt 0x%x l2pt 0x%x l3pt_rpb 0x%x l3pt_kernel 0x%x" @@ -526,31 +528,18 @@ unixBoot(int argc, char **argv) panic("kernel too big\n"); } printf_lock("kstart = 0x%x, kend = 0x%x, kentry = 0x%x, numCPUs = 0x%x\n", m5Conf.kernStart, m5Conf.kernEnd, m5Conf.entryPoint, m5Conf.numCPUs); - /* Map the kernel's pages into the third level of region 2 */ - //for (ptr = m5Conf.kernStart; ptr < kernel_end; ptr += PAGE_SIZE) { - // third_kernel[THIRD_XXX(ptr)] = KPTE(PFN(ptr)); - //} - - ksp_top = (ulong)unix_boot_alloc(1); - ksp = ksp_top + PAGE_SIZE; - - //if (ksp - m5Conf.kernStart > (0x800000*NUM_KERNEL_THIRD)) { - // printf_lock("Kernel stack pushd us over 8MB\n"); - // panic("ksp too big\n"); - //} - //if (THIRD_XXX((ulong)ksp_top) > NUM_KERNEL_THIRD * 1024) { - // panic("increase NUM_KERNEL_THIRD, and change THIRD_XXX\n"); - //} - ptr = (ulong) ksp_top; - bzero((char *)ptr, PAGE_SIZE * 2); - dbPage[THIRD(0x20040000)] = 0; /* Stack Guard Page */ - dbPage[THIRD(0x20042000)] = KPTE(PFN(ptr)); /* Kernel Stack Pages */ - dbPage[THIRD(0x20046000)] = 0; /* Stack Guard Page */ + ksp_bottom = (ulong)unix_boot_alloc(1); + ksp_top = ksp_bottom + PAGE_SIZE; + ptr = (ulong) ksp_bottom; + bzero((char *)ptr, PAGE_SIZE); + dbPage[THIRD(KSTACK_REGION_VA)] = 0; /* Stack Guard Page */ + dbPage[THIRD(KSTACK_REGION_VA + PAGE_SIZE)] = KPTE(PFN(ptr)); /* Kernel Stack Page */ + dbPage[THIRD(KSTACK_REGION_VA + 2*PAGE_SIZE)] = 0; /* Stack Guard Page */ /* put argv into the bottom of the stack - argv starts at 1 because * the command thatr got us here (i.e. "unixboot) is in argv[0]. */ - ksp -= 8; /* Back up one longword */ + ksp = ksp_top - 8; /* Back up one longword */ ksp -= argc * sizeof(char *); /* Make room for argv */ kargv = (char **) ksp; for (i = 1; i < argc; i++) { /* Copy arguments to stack */ @@ -609,7 +598,7 @@ unixBoot(int argc, char **argv) bcopy((char *)&m5_rpb_percpu, (char *)thisCPU, sizeof(struct rpb_percpu)); - thisCPU->rpb_pcb.rpb_ksp = (0x20044000 - 0x18); + thisCPU->rpb_pcb.rpb_ksp = (KSTACK_REGION_VA + 2*PAGE_SIZE - (ksp_top - ksp)); thisCPU->rpb_pcb.rpb_ptbr = PFN(first); thisCPU->rpb_logout = KSEG_TO_PHYS(percpu_logout); |