kata-containers/cloud-hypervisor
1
0
Fork 0
mirror of https://github.com/cloud-hypervisor/cloud-hypervisor.git synced 2026-08-05 02:19:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

vm-allocator: Expand the IRQ allocation API to support GSI

Browse Source 
GSI (Global System Interrupt) is an extension of just a linear array of
IRQs. It takes IOAPICs into account for example.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
2019-07-11 11:48:14 +02:00
committed by Sebastien Boeuf
parent 96fb38a5aa
commit 0a04a950a1
4 changed files with 105 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
vmm/src/vm.rs
View File

@@ -44,7 +44,7 @@ use std::os::unix::io::{AsRawFd, RawFd};
use std::ptr::null_mut;
use std::sync::{Arc, Barrier, Mutex};
use std::{result, str, thread};
use vm_allocator::SystemAllocator;
use vm_allocator::{GsiApic, SystemAllocator};
use vm_memory::guest_memory::FileOffset;
use vm_memory::{
Address, Bytes, Error as MmapError, GuestAddress, GuestMemory, GuestMemoryMmap,
@@ -1066,13 +1066,18 @@ impl<'a> Vm<'a> {
CpuidPatch::patch_cpuid(&mut cpuid, cpuid_patches);
let ioapic = GsiApic::new(
X86_64_IRQ_BASE,
ioapic::NUM_IOAPIC_PINS as u32 - X86_64_IRQ_BASE,
);
// Let's allocate 64 GiB of addressable MMIO space, starting at 0.
let mut allocator = SystemAllocator::new(
GuestAddress(0),
1 << 16 as GuestUsize,
GuestAddress(0),
1 << 36 as GuestUsize,
X86_64_IRQ_BASE,
vec![ioapic],
)
.ok_or(Error::CreateSystemAllocator)?;