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arch, vmm: Expose platform uuid via SMBIOS

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Parse and set uuid.

Signed-off-by: lizhaoxin1 <Lxiaoyouling@163.com>
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
lizhaoxin1 2022-08-04 11:34:26 +08:00 committed by Sebastien Boeuf
parent 3abc1e1e51
commit bc3a276b43
5 changed files with 95 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Cargo.lock generated
View File

@ -50,6 +50,7 @@ dependencies = [
"log",
"serde",
"thiserror",
"uuid",
"versionize",
"versionize_derive",
"vm-fdt",

1
arch/Cargo.toml
View File

@ -17,6 +17,7 @@ linux-loader = { version = "0.4.0", features = ["elf", "bzimage", "pe"] }
log = "0.4.17"
serde = { version = "1.0.141", features = ["rc", "derive"] }
thiserror = "1.0.31"
uuid = "1.1.1"
versionize = "0.1.6"
versionize_derive = "0.1.4"
vm-memory = { version = "0.8.0", features = ["backend-mmap", "backend-bitmap"] }

64
arch/src/x86_64/mod.rs
View File

@ -819,13 +819,14 @@ pub fn configure_system(
rsdp_addr: Option<GuestAddress>,
sgx_epc_region: Option<SgxEpcRegion>,
serial_number: Option<&str>,
uuid: Option<&str>,
) -> super::Result<()> {
// Write EBDA address to location where ACPICA expects to find it
guest_mem
.write_obj((layout::EBDA_START.0 >> 4) as u16, layout::EBDA_POINTER)
.map_err(Error::EbdaSetup)?;
let size = smbios::setup_smbios(guest_mem, serial_number).map_err(Error::SmbiosSetup)?;
let size = smbios::setup_smbios(guest_mem, serial_number, uuid).map_err(Error::SmbiosSetup)?;
// Place the MP table after the SMIOS table aligned to 16 bytes
let offset = GuestAddress(layout::SMBIOS_START).unchecked_add(size);
@ -1178,6 +1179,7 @@ mod tests {
Some(layout::RSDP_POINTER),
None,
None,
None,
);
assert!(config_err.is_err());
@ -1191,7 +1193,17 @@ mod tests {
.collect();
let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
configure_system(&gm, GuestAddress(0), &None, no_vcpus, None, None, None).unwrap();
configure_system(
&gm,
GuestAddress(0),
&None,
no_vcpus,
None,
None,
None,
None,
)
.unwrap();
// Now assigning some memory that is equal to the start of the 32bit memory hole.
let mem_size = 3328 << 20;
@ -1202,9 +1214,29 @@ mod tests {
.map(|r| (r.0, r.1))
.collect();
let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
configure_system(&gm, GuestAddress(0), &None, no_vcpus, None, None, None).unwrap();
configure_system(
&gm,
GuestAddress(0),
&None,
no_vcpus,
None,
None,
None,
None,
)
.unwrap();
configure_system(&gm, GuestAddress(0), &None, no_vcpus, None, None, None).unwrap();
configure_system(
&gm,
GuestAddress(0),
&None,
no_vcpus,
None,
None,
None,
None,
)
.unwrap();
// Now assigning some memory that falls after the 32bit memory hole.
let mem_size = 3330 << 20;
@ -1215,9 +1247,29 @@ mod tests {
.map(|r| (r.0, r.1))
.collect();
let gm = GuestMemoryMmap::from_ranges(&ram_regions).unwrap();
configure_system(&gm, GuestAddress(0), &None, no_vcpus, None, None, None).unwrap();
configure_system(
&gm,
GuestAddress(0),
&None,
no_vcpus,
None,
None,
None,
None,
)
.unwrap();
configure_system(&gm, GuestAddress(0), &None, no_vcpus, None, None, None).unwrap();
configure_system(
&gm,
GuestAddress(0),
&None,
no_vcpus,
None,
None,
None,
None,
)
.unwrap();
}
#[test]

33
arch/src/x86_64/smbios.rs
View File

@ -12,6 +12,7 @@ use std::fmt::{self, Display};
use std::mem;
use std::result;
use std::slice;
use uuid::Uuid;
use vm_memory::ByteValued;
use vm_memory::{Address, Bytes, GuestAddress};
@ -27,6 +28,8 @@ pub enum Error {
WriteSmbiosEp,
/// Failure to write additional data to memory
WriteData,
/// Failure to parse uuid, uuid format may be error
ParseUuid(uuid::Error),
}
impl std::error::Error for Error {}
@ -36,11 +39,16 @@ impl Display for Error {
use self::Error::*;
let description = match self {
NotEnoughMemory => "There was too little guest memory to store the SMBIOS table",
AddressOverflow => "The SMBIOS table has too little address space to be stored",
Clear => "Failure while zeroing out the memory for the SMBIOS table",
WriteSmbiosEp => "Failure to write SMBIOS entrypoint structure",
WriteData => "Failure to write additional data to memory",
NotEnoughMemory => {
"There was too little guest memory to store the SMBIOS table".to_string()
}
AddressOverflow => {
"The SMBIOS table has too little address space to be stored".to_string()
}
Clear => "Failure while zeroing out the memory for the SMBIOS table".to_string(),
WriteSmbiosEp => "Failure to write SMBIOS entrypoint structure".to_string(),
WriteData => "Failure to write additional data to memory".to_string(),
ParseUuid(e) => format!("Failure to parse uuid: {}", e),
};
write!(f, "SMBIOS error: {}", description)
@ -161,7 +169,11 @@ fn write_string(
Ok(curptr)
}
pub fn setup_smbios(mem: &GuestMemoryMmap, serial_number: Option<&str>) -> Result<u64> {
pub fn setup_smbios(
mem: &GuestMemoryMmap,
serial_number: Option<&str>,
uuid: Option<&str>,
) -> Result<u64> {
let physptr = GuestAddress(SMBIOS_START)
.checked_add(mem::size_of::<Smbios30Entrypoint>() as u64)
.ok_or(Error::NotEnoughMemory)?;
@ -188,6 +200,12 @@ pub fn setup_smbios(mem: &GuestMemoryMmap, serial_number: Option<&str>) -> Resul
{
handle += 1;
let uuid_number = uuid
.map(Uuid::parse_str)
.transpose()
.map_err(Error::ParseUuid)?
.unwrap_or(Uuid::nil());
let smbios_sysinfo = SmbiosSysInfo {
typ: SYSTEM_INFORMATION,
length: mem::size_of::<SmbiosSysInfo>() as u8,
@ -195,6 +213,7 @@ pub fn setup_smbios(mem: &GuestMemoryMmap, serial_number: Option<&str>) -> Resul
manufacturer: 1, // First string written in this section
product_name: 2, // Second string written in this section
serial_number: serial_number.map(|_| 3).unwrap_or_default(), // 3rd string
uuid: uuid_number.to_bytes_le(), // set uuid
..Default::default()
};
curptr = write_and_incr(mem, smbios_sysinfo, curptr)?;
@ -266,7 +285,7 @@ mod tests {
fn entrypoint_checksum() {
let mem = GuestMemoryMmap::from_ranges(&[(GuestAddress(SMBIOS_START), 4096)]).unwrap();
setup_smbios(&mem, None).unwrap();
setup_smbios(&mem, None, None).unwrap();
let smbios_ep: Smbios30Entrypoint = mem.read_obj(GuestAddress(SMBIOS_START)).unwrap();

9
vmm/src/vm.rs
View File

@ -1119,6 +1119,14 @@ impl Vm {
.as_ref()
.and_then(|p| p.serial_number.clone());
let uuid = self
.config
.lock()
.unwrap()
.platform
.as_ref()
.and_then(|p| p.uuid.clone());
arch::configure_system(
&mem,
arch::layout::CMDLINE_START,
@ -1127,6 +1135,7 @@ impl Vm {
rsdp_addr,
sgx_epc_region,
serial_number.as_deref(),
uuid.as_deref(),
)
.map_err(Error::ConfigureSystem)?;
Ok(())