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implement memory allocation in boot setup

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This commit is contained in:
Alex Zenla
2024-01-10 16:07:57 -08:00
parent d46d0cf0c3
commit 153619a02c
11 changed files with 619 additions and 73 deletions
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28
xencall/src/sys.rs
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@ -1,6 +1,6 @@
/// Handwritten hypercall bindings.
use nix::ioctl_readwrite_bad;
use std::ffi::{c_char, c_int, c_ulong};
use std::ffi::{c_char, c_int, c_uint, c_ulong};
use uuid::Uuid;
#[repr(C)]
@ -11,13 +11,23 @@ pub struct Hypercall {
}
#[repr(C)]
#[derive(Copy, Clone, Debug)]
#[derive(Copy, Clone, Debug, Default)]
pub struct MmapEntry {
pub va: u64,
pub mfn: u64,
pub npages: u64,
}
#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct MmapBatch {
pub num: u32,
pub domid: u16,
pub addr: u64,
pub mfns: *mut u64,
pub errors: *mut c_int,
}
#[repr(C)]
#[derive(Clone, Debug)]
pub struct Mmap {
@ -28,9 +38,11 @@ pub struct Mmap {
const IOCTL_PRIVCMD_HYPERCALL: u64 = 0x305000;
const IOCTL_PRIVCMD_MMAP: u64 = 0x105002;
const IOCTL_PRIVCMD_MMAPBATCH_V2: u64 = 0x205004;
ioctl_readwrite_bad!(hypercall, IOCTL_PRIVCMD_HYPERCALL, Hypercall);
ioctl_readwrite_bad!(mmap, IOCTL_PRIVCMD_MMAP, Mmap);
ioctl_readwrite_bad!(mmapbatch, IOCTL_PRIVCMD_MMAPBATCH_V2, MmapBatch);
pub const HYPERVISOR_SET_TRAP_TABLE: c_ulong = 0;
pub const HYPERVISOR_MMU_UPDATE: c_ulong = 1;
@ -295,3 +307,15 @@ pub struct XenCapabilitiesInfo {
}
pub const XENVER_CAPABILITIES: u64 = 3;
#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct MemoryReservation {
pub extent_start: c_ulong,
pub nr_extents: c_ulong,
pub extent_order: c_uint,
pub mem_flags: c_uint,
pub domid: u16,
}
pub const XEN_MEM_POPULATE_PHYSMAP: u32 = 6;