Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Fix correct IOAPIC lookup based on gsi

This commit is contained in:
Bananymous 2025-07-18 19:08:24 +03:00
parent 5874fd640e
commit d27891c79f
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/kernel/APIC.cpp
View File

@ -470,7 +470,7 @@ namespace Kernel
IOAPIC* ioapic = nullptr;
for (IOAPIC& io : m_io_apics)
{
if (io.gsi_base <= gsi && gsi <= io.gsi_base + io.max_redirs)
if (io.gsi_base <= gsi && gsi < io.gsi_base + io.max_redirs)
{
ioapic = &io;
break;
@ -512,7 +512,7 @@ namespace Kernel
bool found_ioapic = false;
for (const auto& io : m_io_apics)
{
if (io.gsi_base <= gsi && gsi <= io.gsi_base + io.max_redirs)
if (io.gsi_base <= gsi && gsi < io.gsi_base + io.max_redirs)
{
found_ioapic = true;
break;
@ -529,7 +529,7 @@ namespace Kernel
int bit = gsi % 8;
if (m_reserved_gsis[byte] & (1 << bit))
{
dwarnln("GSI {} is already reserved", gsi);
dwarnln("GSI {} is already reserved (IRQ {})", gsi, irq);
return BAN::Error::from_errno(EFAULT);
}
m_reserved_gsis[byte] |= 1 << bit;
@ -566,7 +566,7 @@ namespace Kernel
IOAPIC* ioapic = nullptr;
for (IOAPIC& io : m_io_apics)
{
if (io.gsi_base <= gsi && gsi <= io.gsi_base + io.max_redirs)
if (io.gsi_base <= gsi && gsi < io.gsi_base + io.max_redirs)
{
ioapic = &io;
break;