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| author | Xiantao Zhang <xiantao.zhang@intel.com> | 2008-10-23 10:56:44 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2008-12-31 17:51:49 +0300 |
| commit | a917f7af3905953329361d29b6db78eb17b4d44c (patch) | |
| tree | a873216c93f09af69f9a68fa831df822a3810fd8 /arch/ia64/kvm/misc.h | |
| parent | 1d5a4d9b92028d9fe77da34037bd5a1ebfecc733 (diff) | |
| download | linux-a917f7af3905953329361d29b6db78eb17b4d44c.tar.xz | |
KVM: ia64: Re-organize data sturure of guests' data area
1. Increase the size of data area to 64M
2. Support more vcpus and memory, 128 vcpus and 256G memory are supported
for guests.
3. Add the boundary check for memory and vcpu allocation.
With this patch, kvm guest's data area looks as follow:
*
* +----------------------+ ------- KVM_VM_DATA_SIZE
* | vcpu[n]'s data | | ___________________KVM_STK_OFFSET
* | | | / |
* | .......... | | /vcpu's struct&stack |
* | .......... | | /---------------------|---- 0
* | vcpu[5]'s data | | / vpd |
* | vcpu[4]'s data | |/-----------------------|
* | vcpu[3]'s data | / vtlb |
* | vcpu[2]'s data | /|------------------------|
* | vcpu[1]'s data |/ | vhpt |
* | vcpu[0]'s data |____________________________|
* +----------------------+ |
* | memory dirty log | |
* +----------------------+ |
* | vm's data struct | |
* +----------------------+ |
* | | |
* | | |
* | | |
* | | |
* | | |
* | | |
* | | |
* | vm's p2m table | |
* | | |
* | | |
* | | | |
* vm's data->| | | |
* +----------------------+ ------- 0
* To support large memory, needs to increase the size of p2m.
* To support more vcpus, needs to ensure it has enough space to
* hold vcpus' data.
*/
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/ia64/kvm/misc.h')
| -rw-r--r-- | arch/ia64/kvm/misc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/ia64/kvm/misc.h b/arch/ia64/kvm/misc.h index e585c4607344..dd979e00b574 100644 --- a/arch/ia64/kvm/misc.h +++ b/arch/ia64/kvm/misc.h @@ -27,7 +27,8 @@ */ static inline uint64_t *kvm_host_get_pmt(struct kvm *kvm) { - return (uint64_t *)(kvm->arch.vm_base + KVM_P2M_OFS); + return (uint64_t *)(kvm->arch.vm_base + + offsetof(struct kvm_vm_data, kvm_p2m)); } static inline void kvm_set_pmt_entry(struct kvm *kvm, gfn_t gfn, |