Hi Jan,
On 07.06.19 09:23, Jan Kiszka wrote:
On 05.06.19 18:17, Andrej Utz wrote:
This replaces the old static port list with actual port regions from
'/proc/ioports'. The static regions from said list are kept and override
the data in case of region overlap to retain compability.
The generated port list is virtually identicall to the old one but eases
manual configuration.
IOW, the whole PCI IO space remains accessible, is now just partitioned
in order to ease manual disabling? I wonder if we could not go one step
further and only allow known regions.
But isn't this the same as the static regions ...
Signed-off-by: Andrej Utz <[email protected]>
---
pyjailhouse/sysfs_parser.py | 135 ++++++++++++++++++++++++++++++++++
tools/jailhouse-config-create | 14 +---
tools/root-cell-config.c.tmpl | 15 ++--
3 files changed, 142 insertions(+), 22 deletions(-)
diff --git a/pyjailhouse/sysfs_parser.py b/pyjailhouse/sysfs_parser.py
index 56265fb5..d06a476a 100644
--- a/pyjailhouse/sysfs_parser.py
+++ b/pyjailhouse/sysfs_parser.py
@@ -142,6 +142,57 @@ def parse_iomem(pcidevices):
return ret, dmar_regions
+def parse_ioports():
+ regions = IOMapTree.parse_ioports_tree(
+ IOMapTree.parse_iomap_file('/proc/ioports', PortRegion))
+
+ tmp = [
+ # static regions
+ PortRegion(0x0, 0x3f, ''),
+ PortRegion(0x40, 0x43, 'PIT', allowed=True),
+ PortRegion(0x60, 0x61, 'NMI', allowed=True), # NMI
status/control
... do here? Or how do you define "known regions"?
We should preserve the property "hack" for this one, and that ideally as
comment in the generated config. Could you enhance this in that
direction? Benefit: you could add the originating device as comment to
other port ranges.
Ack.
Andrej
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