diff options
Diffstat (limited to 'i386/i386at')
| -rw-r--r-- | i386/i386at/model_dep.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/i386/i386at/model_dep.c b/i386/i386at/model_dep.c index 2426cde..741726d 100644 --- a/i386/i386at/model_dep.c +++ b/i386/i386at/model_dep.c @@ -220,8 +220,10 @@ mem_size_init(void) phys_last_kb = 0x400 + boot_info.mem_upper; /* Avoid 4GiB overflow. */ - if (phys_last_kb < 0x400 || phys_last_kb >= 0x400000) + if (phys_last_kb < 0x400 || phys_last_kb >= 0x400000) { + printf("Truncating memory size to 4GiB\n"); phys_last_kb = 0x400000 - 1; + } phys_last_addr = phys_last_kb * 0x400; avail_remaining @@ -233,8 +235,10 @@ mem_size_init(void) /* Reserve 1/16 of the memory address space for virtual mappings. * Yes, this loses memory. Blame i386. */ - if (phys_last_addr > (VM_MAX_KERNEL_ADDRESS / 16) * 15) - phys_last_addr = (VM_MAX_KERNEL_ADDRESS / 16) * 15; + if (phys_last_addr > (VM_MAX_KERNEL_ADDRESS / 8) * 7) { + phys_last_addr = (VM_MAX_KERNEL_ADDRESS / 8) * 7; + printf("Truncating memory size to %dMiB\n", (phys_last_addr - phys_first_addr) / (1024 * 1024)); + } phys_first_addr = round_page(phys_first_addr); phys_last_addr = trunc_page(phys_last_addr); |