diff options
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/api.rst | 15 | ||||
| -rw-r--r-- | Documentation/virt/kvm/devices/arm-vgic-its.rst | 2 | ||||
| -rw-r--r-- | Documentation/virt/kvm/devices/arm-vgic-v3.rst | 2 |
3 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst index 987d99e39887..3f210953c135 100644 --- a/Documentation/virt/kvm/api.rst +++ b/Documentation/virt/kvm/api.rst @@ -3115,6 +3115,18 @@ optional features it should have. This will cause a reset of the cpu registers to their initial values. If this is not called, KVM_RUN will return ENOEXEC for that vcpu. +The initial values are defined as: + - Processor state: + * AArch64: EL1h, D, A, I and F bits set. All other bits + are cleared. + * AArch32: SVC, A, I and F bits set. All other bits are + cleared. + - General Purpose registers, including PC and SP: set to 0 + - FPSIMD/NEON registers: set to 0 + - SVE registers: set to 0 + - System registers: Reset to their architecturally defined + values as for a warm reset to EL1 (resp. SVC) + Note that because some registers reflect machine topology, all vcpus should be created before this ioctl is invoked. @@ -3334,7 +3346,8 @@ The top 16 bits of the control field are architecture specific control flags which can include the following: - KVM_GUESTDBG_USE_SW_BP: using software breakpoints [x86, arm64] - - KVM_GUESTDBG_USE_HW_BP: using hardware breakpoints [x86, s390, arm64] + - KVM_GUESTDBG_USE_HW_BP: using hardware breakpoints [x86, s390] + - KVM_GUESTDBG_USE_HW: using hardware debug events [arm64] - KVM_GUESTDBG_INJECT_DB: inject DB type exception [x86] - KVM_GUESTDBG_INJECT_BP: inject BP type exception [x86] - KVM_GUESTDBG_EXIT_PENDING: trigger an immediate guest exit [s390] diff --git a/Documentation/virt/kvm/devices/arm-vgic-its.rst b/Documentation/virt/kvm/devices/arm-vgic-its.rst index 6c304fd2b1b4..d257eddbae29 100644 --- a/Documentation/virt/kvm/devices/arm-vgic-its.rst +++ b/Documentation/virt/kvm/devices/arm-vgic-its.rst @@ -80,7 +80,7 @@ KVM_DEV_ARM_VGIC_GRP_CTRL -EFAULT Invalid guest ram access -EBUSY One or more VCPUS are running -EACCES The virtual ITS is backed by a physical GICv4 ITS, and the - state is not available + state is not available without GICv4.1 ======= ========================================================== KVM_DEV_ARM_VGIC_GRP_ITS_REGS diff --git a/Documentation/virt/kvm/devices/arm-vgic-v3.rst b/Documentation/virt/kvm/devices/arm-vgic-v3.rst index 5dd3bff51978..51e5e5762571 100644 --- a/Documentation/virt/kvm/devices/arm-vgic-v3.rst +++ b/Documentation/virt/kvm/devices/arm-vgic-v3.rst @@ -228,7 +228,7 @@ Groups: KVM_DEV_ARM_VGIC_CTRL_INIT request the initialization of the VGIC, no additional parameter in - kvm_device_attr.addr. + kvm_device_attr.addr. Must be called after all VCPUs have been created. KVM_DEV_ARM_VGIC_SAVE_PENDING_TABLES save all LPI pending bits into guest RAM pending tables. |