aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/virtual
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/virtual')
-rw-r--r--Documentation/virtual/kvm/cpuid.txt15
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt
index 87a7506f31c2..d4f33eb805dd 100644
--- a/Documentation/virtual/kvm/cpuid.txt
+++ b/Documentation/virtual/kvm/cpuid.txt
@@ -23,8 +23,8 @@ This function queries the presence of KVM cpuid leafs.
function: define KVM_CPUID_FEATURES (0x40000001)
-returns : ebx, ecx, edx = 0
- eax = and OR'ed group of (1 << flag), where each flags is:
+returns : ebx, ecx
+ eax = an OR'ed group of (1 << flag), where each flags is:
flag || value || meaning
@@ -66,3 +66,14 @@ KVM_FEATURE_CLOCKSOURCE_STABLE_BIT || 24 || host will warn if no guest-side
|| || per-cpu warps are expected in
|| || kvmclock.
------------------------------------------------------------------------------
+
+ edx = an OR'ed group of (1 << flag), where each flags is:
+
+
+flag || value || meaning
+==================================================================================
+KVM_HINTS_DEDICATED || 0 || guest checks this feature bit to
+ || || determine if there is vCPU pinning
+ || || and there is no vCPU over-commitment,
+ || || allowing optimizations
+----------------------------------------------------------------------------------