ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2025-01-18 18:56:29 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add check for ACPI version during parsing tables, fix #1883

Browse Source
This commit is contained in:
Tomasz Gajewski 2016-02-14 12:24:56 +01:00 committed by Christian Helmuth
parent ed54bb2724
commit 74dd356dcd
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
repos/os/src/drivers/acpi/acpi.cc
View File

@ -1223,10 +1223,11 @@ class Acpi_table
addr_t const rsdt = rsdp->rsdt;
addr_t const xsdt = rsdp->xsdt;
uint8_t const acpi_revision = rsdp->revision;
/* drop rsdp io_mem mapping since rsdt/xsdt may overlap */
env()->parent()->close(io_mem);
if (xsdt && sizeof(addr_t) != sizeof(uint32_t)) {
if (acpi_revision != 0 && xsdt && sizeof(addr_t) != sizeof(uint32_t)) {
/* running 64bit and xsdt is valid */
Table_wrapper table(xsdt);
uint64_t * entries = reinterpret_cast<uint64_t *>(table.table() + 1);