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[6/6] docs: kvm: riscv: document EBUSY in KVM_SET_ONE_REG

Message ID 20230731120420.91007-7-dbarboza@ventanamicro.com (mailing list archive)
State New, archived
Headers show
Series RISC-V: KVM: change get_reg/set_reg error codes | expand

Commit Message

Daniel Henrique Barboza July 31, 2023, 12:04 p.m. UTC 
The EBUSY errno is being used for KVM_SET_ONE_REG as a way to tell
userspace that a given reg can't be written after the vcpu started.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
---
 Documentation/virt/kvm/api.rst | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index c0ddd3035462..229e7cc091c8 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -2259,6 +2259,8 @@  Errors:
   EINVAL   invalid register ID, or no such register or used with VMs in
            protected virtualization mode on s390
   EPERM    (arm64) register access not allowed before vcpu finalization
+  EBUSY    (riscv) register access not allowed after the vcpu has run
+           at least once
   ======   ============================================================
 
 (These error codes are indicative only: do not rely on a specific error