diff options
Diffstat (limited to 'Documentation/virtual/kvm/ppc-pv.txt')
| -rw-r--r-- | Documentation/virtual/kvm/ppc-pv.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/virtual/kvm/ppc-pv.txt b/Documentation/virtual/kvm/ppc-pv.txt index 3ab969c59046..2b7ce190cde4 100644 --- a/Documentation/virtual/kvm/ppc-pv.txt +++ b/Documentation/virtual/kvm/ppc-pv.txt | |||
| @@ -68,9 +68,11 @@ page that contains parts of supervisor visible register state. The guest can | |||
| 68 | map this shared page using the KVM hypercall KVM_HC_PPC_MAP_MAGIC_PAGE. | 68 | map this shared page using the KVM hypercall KVM_HC_PPC_MAP_MAGIC_PAGE. |
| 69 | 69 | ||
| 70 | With this hypercall issued the guest always gets the magic page mapped at the | 70 | With this hypercall issued the guest always gets the magic page mapped at the |
| 71 | desired location in effective and physical address space. For now, we always | 71 | desired location. The first parameter indicates the effective address when the |
| 72 | map the page to -4096. This way we can access it using absolute load and store | 72 | MMU is enabled. The second parameter indicates the address in real mode, if |
| 73 | functions. The following instruction reads the first field of the magic page: | 73 | applicable to the target. For now, we always map the page to -4096. This way we |
| 74 | can access it using absolute load and store functions. The following | ||
| 75 | instruction reads the first field of the magic page: | ||
| 74 | 76 | ||
| 75 | ld rX, -4096(0) | 77 | ld rX, -4096(0) |
| 76 | 78 | ||