[PATCH v4 24/25] KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG
From: Dave Martin <Dave.Martin@arm.com>
Date: 2019-01-17 21:03:22
Also in:
kvmarm
Subsystem:
documentation, the rest · Maintainers:
Jonathan Corbet, Linus Torvalds
KVM_GET_ONE_REG and KVM_SET_ONE_REG return some error codes that are not documented (but hopefully not surprising either). To give an indication of what these may mean, this patch adds brief documentation. Signed-off-by: Dave Martin <Dave.Martin@arm.com> --- Documentation/virtual/kvm/api.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 097b8ba..cb15f2a 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt@@ -1854,6 +1854,9 @@ Architectures: all Type: vcpu ioctl Parameters: struct kvm_one_reg (in) Returns: 0 on success, negative value on failure +Errors: + ENOENT: no such register + EINVAL: other errors, such as bad size encoding for a known register struct kvm_one_reg { __u64 id;
@@ -2175,6 +2178,9 @@ Architectures: all Type: vcpu ioctl Parameters: struct kvm_one_reg (in and out) Returns: 0 on success, negative value on failure +Errors: + ENOENT: no such register + EINVAL: other errors, such as bad size encoding for a known register This ioctl allows to receive the value of a single register implemented in a vcpu. The register to read is indicated by the "id" field of the
--
2.1.4
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