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vm-migration: preserve error chain

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On-behalf-of: SAP philipp.schuster@sap.com
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>
This commit is contained in:
Philipp Schuster
2026-06-02 06:40:11 +02:00
committed by Rob Bradford
parent b4c37def26
commit 85109ebae0
2 changed files with 9 additions and 3 deletions
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6
vm-migration/src/lib.rs
View File

@@ -26,7 +26,11 @@ pub enum UffdError {
Create(#[source] std::io::Error), Create(#[source] std::io::Error),
#[error("Cannot translate GPA {gpa:#x} to host address")] #[error("Cannot translate GPA {gpa:#x} to host address")]
GpaTranslation { gpa: u64 }, GpaTranslation {
gpa: u64,
#[source]
source: vm_memory::GuestMemoryError,
},
#[error("Failed to register region at {addr:#x}+{len:#x}")] #[error("Failed to register region at {addr:#x}+{len:#x}")]
Register { Register {

6
vmm/src/memory_manager.rs
View File

@@ -996,8 +996,10 @@ impl MemoryManager {
for range in saved_regions.regions() { for range in saved_regions.regions() {
let host_addr = guest_memory let host_addr = guest_memory
.get_host_address(GuestAddress(range.gpa)) .get_host_address(GuestAddress(range.gpa))
.map_err(|_| UffdError::GpaTranslation { gpa: range.gpa })? .map_err(|e| UffdError::GpaTranslation {
as u64; gpa: range.gpa,
source: e,
})? as u64;
let ioctls = uffd::register(uffd_fd.as_fd(), host_addr, range.length).map_err(|e| { let ioctls = uffd::register(uffd_fd.as_fd(), host_addr, range.length).map_err(|e| {
UffdError::Register { UffdError::Register {