On 15/09/2015 12:30, Wanpeng Li wrote:
> + if (!nested) {
> + vpid = find_first_zero_bit(vmx_vpid_bitmap, VMX_NR_VPIDS);
> + if (vpid < VMX_NR_VPIDS) {
> vmx->vpid = vpid;
> __set_bit(vpid, vmx_vpid_bitmap);
> + }
> + } else {
> + vpid = find_first_zero_bit(vmx_vpid_bitmap, VMX_NR_VPIDS);
> + if (vpid < VMX_NR_VPIDS) {
> + vmx->nested.vpid02 = vpid;
> + __set_bit(vpid, vmx_vpid_bitmap);
> + }
Messy indentation, and a lot of duplicate code. Can you instead have
(which I think was Jan's suggestion too):
static int allocate_vpid(void);
static void free_vpid(int vpid);
That said, I like the simple solution to the "too many VPIDs for each L1
VCPU" processor.
Paolo
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