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HV: sanitize vm config

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Add a API to sanitize vm_configs[] array, in this API, we will do sanity
check for VM configurations and refill some fields in vm_configs[]. If
sanity check is failed, the HV would reject to boot.

About pcpu_bitmap of SOS_VM:

We should not hard code pcpu_bitmap for SOS_VM, this is not convenient for
unconfigured boards. The pcpu_bitmap follows a very simple rule:

All physical CPUs except ocuppied by Pre-launched VMs are all belong to
SOS_VM. In this way, the pcpu_bitmap of a SOS_VM is decided by pcpu_bitmap
status in PRE_LAUNCHED_VMs.

To get the correct pcpu_bitmap of SOS_VM, We need to setup another rule, that
the vm_configs[] array should follow the order of PRE_LAUNCHED_VM - SOS_VM
strictly.

With this patch enabled, the pcpu_bitmap field of sos vm config is not needed
to configure;

Tracked-On: #2291

Signed-off-by: Victor Sun <victor.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Victor Sun
2019-01-24 22:37:51 +08:00
committed by Eddie Dong
parent 285b64faec
commit 66e0023029
4 changed files with 56 additions and 1 deletions
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1
hypervisor/arch/x86/configs/sharing_config.c
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@@ -11,7 +11,6 @@ struct acrn_vm_config vm_configs[CONFIG_MAX_VM_NUM] __aligned(PAGE_SIZE) = {
{
.type = SOS_VM,
.name = SOS_VM_CONFIG_NAME,
.pcpu_bitmap = SOS_VM_CONFIG_PCPU_BITMAP,
.guest_flags = SOS_VM_CONFIG_GUEST_FLAGS,
.memory = {
.start_hpa = 0x0UL,