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Kernel: Move USERSPACE_END to lower half 

This allows calculating distance to USERSPACE_END from lower half
address
This commit is contained in:
Bananymous 2026-04-02 16:34:47 +03:00
parent 32806a5af3
commit 9589b5984d
2 changed files with 3 additions and 3 deletions
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4
kernel/arch/x86_64/PageTable.cpp
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@ -866,7 +866,7 @@ namespace Kernel
last_address -= rem; last_address -= rem;
ASSERT(is_canonical(first_address)); ASSERT(is_canonical(first_address));
ASSERT(is_canonical(last_address)); ASSERT(is_canonical(last_address - 1));
const vaddr_t uc_vaddr_start = uncanonicalize(first_address); const vaddr_t uc_vaddr_start = uncanonicalize(first_address);
const vaddr_t uc_vaddr_end = uncanonicalize(last_address); const vaddr_t uc_vaddr_end = uncanonicalize(last_address);
@ -948,7 +948,7 @@ namespace Kernel
last_address -= rem; last_address -= rem;
ASSERT(is_canonical(first_address)); ASSERT(is_canonical(first_address));
ASSERT(is_canonical(last_address)); ASSERT(is_canonical(last_address - 1));
SpinLockGuard _(m_lock); SpinLockGuard _(m_lock);

2
kernel/include/kernel/Memory/Types.h
View File

@ -4,7 +4,7 @@
#if ARCH(x86_64) #if ARCH(x86_64)
#define KERNEL_OFFSET 0xFFFFFFFF80000000 #define KERNEL_OFFSET 0xFFFFFFFF80000000
#define USERSPACE_END 0xFFFF800000000000 #define USERSPACE_END 0x800000000000
#elif ARCH(i686) #elif ARCH(i686)
#define KERNEL_OFFSET 0xC0000000 #define KERNEL_OFFSET 0xC0000000
#define USERSPACE_END 0xC0000000 #define USERSPACE_END 0xC0000000