diff options
Diffstat (limited to 'Documentation/virtual')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 818ac97fdabc..e410a9f0f0d4 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2159,8 +2159,9 @@ arm64 SVE registers have the following bit patterns: 0x6050 0000 0015 060 <slice:5> FFR bits[256*slice + 255 : 256*slice] 0x6060 0000 0015 ffff KVM_REG_ARM64_SVE_VLS pseudo-register -Access to slices beyond the maximum vector length configured for the -vcpu (i.e., where 16 * slice >= max_vq (**)) will fail with ENOENT. +Access to register IDs where 2048 * slice >= 128 * max_vq will fail with +ENOENT. max_vq is the vcpu's maximum supported vector length in 128-bit +quadwords: see (**) below. These registers are only accessible on vcpus for which SVE is enabled. See KVM_ARM_VCPU_INIT for details. |