denshooter/genode
1
0
Fork 0
mirror of https://github.com/mmueller41/genode.git synced 2026-01-21 12:32:56 +01:00
Code Issues Packages Projects Releases Wiki Activity

ealanos: Fixed support for bricks.

Browse Source
This commit is contained in:
Michael Mueller
2025-08-29 17:19:04 +02:00
parent b6a36278a9
commit c74ce6083c
1 changed files with 13 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
repos/ealanos/src/lib/sandbox/core_allocator.h
View File

@@ -35,11 +35,15 @@ class Hoitaja::Core_allocator
double _resource_coeff; // Coefficient used for calculating resource shares
unsigned int _cores_for_cells; // Number of cores available to cells. This is the total number of cores in the habitat minus the cores occupied by bricks.
unsigned int
_cores_for_cells; // Number of cores available to cells. This is the total number of
// cores in the habitat minus the cores occupied by bricks.
unsigned int _brick_end{0}; // CPU ID at which to start allocating cores for cells
public:
inline unsigned int _calculate_resource_share(long priority) {
double ref_share = static_cast<double>(_cores_for_cells) / _resource_coeff;
double ref_share = static_cast<double>(_cores_for_cells-_brick_end) / _resource_coeff;
return static_cast<unsigned int>((1.0 / static_cast<double>(priority)) * ref_share);
}
@@ -57,7 +61,12 @@ class Hoitaja::Core_allocator
{
if (::Sandbox::is_brick_from_xml(start_node)) {
Genode::Affinity::Location brick = ::Sandbox::affinity_location_from_xml(_affinity_space, start_node);
_cores_for_cells -= brick.width();
unsigned int end_of_brick = brick.xpos() + brick.width();
if (end_of_brick > _brick_end) {
_brick_end = end_of_brick;
}
return brick;
}
@@ -69,8 +78,7 @@ class Hoitaja::Core_allocator
_resource_coeff += (1.0/static_cast<double>(priority)); // treat priority 0 same as 1, to avoid division by zero here
Genode::log("Resource coefficient: ", _resource_coeff);
unsigned int cores_share = _calculate_resource_share(priority);
unsigned int cores_share = _calculate_resource_share(priority);
return Genode::Affinity::Location( _cores_for_cells-cores_share, 0, cores_share, 1 ); /* always use the core_share last cores, for now */
}