From: David Hildenbrand <d...@linux.vnet.ibm.com> This patch clarifies that kvm_dirty_regs are just a hint to the kernel and that the kernel might just ignore some flags and sync the values (like done for acrs and gprs now).
Signed-off-by: David Hildenbrand <d...@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.h...@de.ibm.com> Signed-off-by: Christian Borntraeger <borntrae...@de.ibm.com> --- Documentation/virtual/kvm/api.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index beae3fd..6485750 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2861,6 +2861,10 @@ kvm_valid_regs for specific bits. These bits are architecture specific and usually define the validity of a groups of registers. (e.g. one bit for general purpose registers) +Please note that the kernel is allowed to use the kvm_run structure as the +primary storage for certain register types. Therefore, the kernel may use the +values in kvm_run even if the corresponding bit in kvm_dirty_regs is not set. + }; -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
