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9150284ca7
Currently the vcpu_affinity[] array fixes the vCPU to pCPU mapping. While the new cpu_affinity_bitmap doesn't explicitly sepcify this mapping, instead, it implicitly assumes that vCPU0 maps to the pCPU with lowest pCPU ID, vCPU1 maps to the second lowest pCPU ID, and so on. This makes it possible for post-launched VM to run vCPUs on a subset of these pCPUs only, and not all of them. acrn-dm may launch post-launched VMs with the current approach: indicate VM UUID and hypervisor launches all VCPUs from the PCPUs that are masked in cpu_affinity_bitmap. Also acrn-dm can choose to launch the VM on a subset of PCPUs that is defined in cpu_affinity_bitmap. In this way, acrn-dm must specify the subset of PCPUs in the CREATE_VM hypercall. Additionally, with this change, a guest's vcpu_num can be easily calculated from cpu_affinity_bitmap, so don't assign vcpu_num in vm_configuration.c. Tracked-On: #4616 Signed-off-by: Zide Chen <zide.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com> |
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| .. | ||
| boot | ||
| configs | ||
| guest | ||
| lib | ||
| seed | ||
| cpu_caps.c | ||
| cpu_state_tbl.c | ||
| cpu.c | ||
| e820.c | ||
| gdt.c | ||
| idt.S | ||
| init.c | ||
| ioapic.c | ||
| irq.c | ||
| Kconfig | ||
| lapic.c | ||
| mmu.c | ||
| notify.c | ||
| page.c | ||
| pagetable.c | ||
| platform_caps.c | ||
| pm.c | ||
| rdt.c | ||
| sched.S | ||
| security.c | ||
| sgx.c | ||
| timer.c | ||
| trampoline.c | ||
| vmx.c | ||
| vtd.c | ||
| wakeup.S | ||