External/cloud-hypervisor
1
0
Fork 0
mirror of https://github.com/cloud-hypervisor/cloud-hypervisor.git synced 2024-12-22 21:55:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

vmm: Only fill in PIO and 32-bit MMIO space on zero segment

Browse Source 
Since each segment must have disjoint address spaces only advertise
address space in the 32-bit range and the PIO address space on the
default (zero) segment.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford 2021-10-06 16:54:16 +01:00
parent 3059ba4305
commit c118d7d7d3
1 changed files with 50 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
vmm/src/pci_segment.rs
View File

@ -356,7 +356,8 @@ impl Aml for PciSegment {
let pci_dsm = PciDsmMethod {};
pci_dsdt_inner_data.push(&pci_dsm);
let crs = aml::Name::new(
let crs = if self.id == 0 {
aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![
&aml::AddressSpace::new_bus_number(0x0u16, 0x0u16),
@ -371,7 +372,8 @@ impl Aml for PciSegment {
aml::AddressSpaceCachable::NotCacheable,
true,
layout::MEM_32BIT_DEVICES_START.0 as u32,
(layout::MEM_32BIT_DEVICES_START.0 + layout::MEM_32BIT_DEVICES_SIZE - 1) as u32,
(layout::MEM_32BIT_DEVICES_START.0 + layout::MEM_32BIT_DEVICES_SIZE - 1)
as u32,
),
&aml::AddressSpace::new_memory(
aml::AddressSpaceCachable::NotCacheable,
@ -384,7 +386,26 @@ impl Aml for PciSegment {
#[cfg(target_arch = "x86_64")]
&aml::AddressSpace::new_io(0x0d00u16, 0xffffu16),
]),
);
)
} else {
aml::Name::new(
"_CRS".into(),
&aml::ResourceTemplate::new(vec![
&aml::AddressSpace::new_bus_number(0x0u16, 0x0u16),
&aml::Memory32Fixed::new(
true,
self.mmio_config_address as u32,
PCI_MMIO_CONFIG_SIZE as u32,
),
&aml::AddressSpace::new_memory(
aml::AddressSpaceCachable::NotCacheable,
true,
self.start_of_device_area,
self.end_of_device_area,
),
]),
)
};
pci_dsdt_inner_data.push(&crs);
let mut pci_devices = Vec::new();