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arch, vmm: Add CPUID check to the 'Config' step of live migration

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We now send not only the 'VmConfig' at the 'Command::Config' step of
live migration, but also send the 'common CPUID'. In this way, we can
check the compatibility of CPUID features between the source and
destination VMs, and abort live migration early if needed.

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen
2021-07-16 11:33:03 -07:00
committed by Sebastien Boeuf
parent b4c2772031
commit 6d9c1eb638
3 changed files with 247 additions and 6 deletions
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arch/src/lib.rs
+1 -1
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@@ -85,7 +85,7 @@ pub mod x86_64;
pub use x86_64::{
arch_memory_regions, configure_system, configure_vcpu, generate_common_cpuid,
get_host_cpu_phys_bits, initramfs_load_addr, layout, layout::CMDLINE_MAX_SIZE,
layout::CMDLINE_START, regs, EntryPoint,
layout::CMDLINE_START, regs, CpuidFeatureEntry, EntryPoint,
};
/// Safe wrapper for `sysconf(_SC_PAGESIZE)`.