From 0bd80c93a2171128e05923b4fd6afe92a54382b8 Mon Sep 17 00:00:00 2001
From: Gabriel <gabscoarnec@gmail.com>
Date: Fri, 7 Mar 2025 17:54:35 +0100
Subject: [PATCH] system/x86_64: Add PAGE_SIZE to the vm file to be used by
everyone
---
system/lib/arch/x86_64/vm.zig | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/system/lib/arch/x86_64/vm.zig b/system/lib/arch/x86_64/vm.zig
index c1da581..3426828 100644
--- a/system/lib/arch/x86_64/vm.zig
+++ b/system/lib/arch/x86_64/vm.zig
@@ -7,6 +7,8 @@ const MapError = error{
OutOfMemory,
};
+pub const PAGE_SIZE = 4096;
+
pub const PhysFrame = struct {
address: u64,
@@ -157,7 +159,7 @@ pub fn unmap(mapper: *const MemoryMapper, virt_address: u64) !PhysFrame {
return frame;
}
-pub fn getEntry(mapper: MemoryMapper, virt_address: u64) ?*PageTableEntry {
+pub fn getEntry(mapper: *const MemoryMapper, virt_address: u64) ?*PageTableEntry {
const indexes = calculatePageTableIndexes(virt_address);
const l4 = &mapper.directory.entries[indexes.level4];
if (l4.present == 0) return null;
@@ -176,7 +178,7 @@ pub fn getEntry(mapper: MemoryMapper, virt_address: u64) ?*PageTableEntry {
return l1;
}
-pub fn getPhysical(mapper: MemoryMapper, virt_address: u64) ?PhysFrame {
+pub fn getPhysical(mapper: *const MemoryMapper, virt_address: u64) ?PhysFrame {
const entry = getEntry(mapper, virt_address) orelse return null;
return PhysFrame{ .address = entry.getAddress() };