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Remove tracking of sMaxVirtualAddress as it's not used.

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The value computed isn't actually used anywhere. It just ensured that
a panic would be triggered if we "skipped" to virtual addresses further
along. This shouldn't be problematic however.
This commit is contained in:
Michael Lotz
2012-12-04 23:38:06 +01:00
parent 83f7c22537
commit 7c45cf7155
1 changed files with 0 additions and 12 deletions
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src/system/boot/arch/arm/arch_mmu.cpp
-12
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@@ -128,7 +128,6 @@ static const size_t kMaxKernelSize = 0x200000; // 2 MB for the kernel
static addr_t sNextPhysicalAddress = 0; //will be set by mmu_init static addr_t sNextPhysicalAddress = 0; //will be set by mmu_init
static addr_t sNextVirtualAddress = KERNEL_BASE + kMaxKernelSize; static addr_t sNextVirtualAddress = KERNEL_BASE + kMaxKernelSize;
static addr_t sMaxVirtualAddress = KERNEL_BASE + kMaxKernelSize;
static addr_t sNextPageTableAddress = 0; static addr_t sNextPageTableAddress = 0;
//the page directory is in front of the pagetable //the page directory is in front of the pagetable
@@ -397,17 +396,6 @@ map_page(addr_t virtualAddress, addr_t physicalAddress, uint32 flags)
(void *)virtualAddress); (void *)virtualAddress);
} }
if (virtualAddress >= sMaxVirtualAddress) {
// we need to add a new page table
add_page_table(sMaxVirtualAddress);
sMaxVirtualAddress += B_PAGE_SIZE * 256;
if (virtualAddress >= sMaxVirtualAddress) {
panic("map_page: asked to map a page to %p\n",
(void *)virtualAddress);
}
}
physicalAddress &= ~(B_PAGE_SIZE - 1); physicalAddress &= ~(B_PAGE_SIZE - 1);
// map the page to the correct page table // map the page to the correct page table