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arch, vmm: Expose platform serial_number via SMBIOS

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Fixes: #4002

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
This commit is contained in:
Rob Bradford
2022-04-21 12:25:17 +01:00
committed by Sebastien Boeuf
parent 203dfdc156
commit e972eb7c74
3 changed files with 23 additions and 8 deletions
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arch/src/x86_64/smbios.rs
+6 -2
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@@ -162,7 +162,7 @@ fn write_string(
Ok(curptr)
}
pub fn setup_smbios(mem: &GuestMemoryMmap) -> Result<u64> {
pub fn setup_smbios(mem: &GuestMemoryMmap, serial_number: Option<&str>) -> Result<u64> {
let physptr = GuestAddress(SMBIOS_START)
.checked_add(mem::size_of::<Smbios30Entrypoint>() as u64)
.ok_or(Error::NotEnoughMemory)?;
@@ -195,11 +195,15 @@ pub fn setup_smbios(mem: &GuestMemoryMmap) -> Result<u64> {
handle,
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
..Default::default()
};
curptr = write_and_incr(mem, smbios_sysinfo, curptr)?;
curptr = write_string(mem, "Cloud Hypervisor", curptr)?;
curptr = write_string(mem, "cloud-hypervisor", curptr)?;
if let Some(serial_number) = serial_number {
curptr = write_string(mem, serial_number, curptr)?;
}
curptr = write_and_incr(mem, 0u8, curptr)?;
}
@@ -263,7 +267,7 @@ mod tests {
fn entrypoint_checksum() {
let mem = GuestMemoryMmap::from_ranges(&[(GuestAddress(SMBIOS_START), 4096)]).unwrap();
setup_smbios(&mem).unwrap();
setup_smbios(&mem, None).unwrap();
let smbios_ep: Smbios30Entrypoint = mem.read_obj(GuestAddress(SMBIOS_START)).unwrap();