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acpica: detach MMIO region before re-attaching

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This is a follow-up commit for the changes in #5069.

Fixes #5083
This commit is contained in:
Christian Helmuth 2024-01-03 15:33:16 +01:00
parent 30e37d90dd
commit 980793970d
1 changed files with 10 additions and 3 deletions
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13
repos/libports/src/lib/acpica/iomem.cc
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@ -232,8 +232,10 @@ class Acpica::Io_mem
if (ref_dec())
return;
if (!stale())
if (!stale()) {
Acpica::env().rm().detach(_virt);
Genode::destroy(Acpica::heap(), _io_mem);
}
_phys = _size = 0;
_virt = nullptr;
@ -298,8 +300,10 @@ class Acpica::Io_mem
Genode::addr_t pre_expand(ACPI_PHYSICAL_ADDRESS p, ACPI_SIZE s)
{
if (_io_mem)
if (_io_mem) {
Acpica::env().rm().detach(_virt);
Genode::destroy(Acpica::heap(), _io_mem);
}
Genode::addr_t xsize = _phys - p + _size;
if (!allocate(p, xsize, _ref))
@ -310,8 +314,10 @@ class Acpica::Io_mem
Genode::addr_t post_expand(ACPI_PHYSICAL_ADDRESS p, ACPI_SIZE s)
{
if (_io_mem)
if (_io_mem) {
Acpica::env().rm().detach(_virt);
Genode::destroy(Acpica::heap(), _io_mem);
}
ACPI_SIZE xsize = p + s - _phys;
if (!allocate(_phys, xsize, _ref))
@ -343,6 +349,7 @@ class Acpica::Io_mem
Genode::addr_t virt = reinterpret_cast<Genode::addr_t>(io2._virt);
Acpica::env().rm().detach(virt);
Acpica::env().rm().attach_at(io_ds, virt, io2._size, off_phys);
});