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Kernel: Fix remote TLB shootdown for <= 32 pages

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I was modifying the `vaddr` argument while invalidating which lead to
the smp message containing wrong virtual address. This showed up in
really weird bugs from invalid TLB
This commit is contained in:
Bananymous
2026-05-06 15:02:38 +03:00
parent 3ac955714b
commit 443be800b7
2 changed files with 4 additions and 4 deletions
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4
kernel/arch/i686/PageTable.cpp
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@@ -343,8 +343,8 @@ namespace Kernel
;
else if (pages <= 32 || !s_is_initialized)
{
for (size_t i = 0; i < pages; i++, vaddr += PAGE_SIZE)
asm volatile("invlpg (%0)" :: "r"(vaddr));
for (size_t i = 0; i < pages; i++)
asm volatile("invlpg (%0)" :: "r"(vaddr + i * PAGE_SIZE));
}
else if (is_userspace || !s_has_pge)
{

4
kernel/arch/x86_64/PageTable.cpp
View File

@@ -472,8 +472,8 @@ namespace Kernel
;
else if (pages <= 32 || !s_is_initialized)
{
for (size_t i = 0; i < pages; i++, vaddr += PAGE_SIZE)
asm volatile("invlpg (%0)" :: "r"(vaddr));
for (size_t i = 0; i < pages; i++)
asm volatile("invlpg (%0)" :: "r"(vaddr + i * PAGE_SIZE));
}
else if (is_userspace || !s_has_pge)
{