From: Sean Christopherson <[email protected]> Add a flag for TDX to mark dirty logging as unsupported.
Suggested-by: Kai Huang <[email protected]> Signed-off-by: Sean Christopherson <[email protected]> --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 5 ++++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 1a0df7b83fd0..9682282cb258 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -517,6 +517,7 @@ struct kvm { pid_t userspace_pid; unsigned int max_halt_poll_ns; + bool dirty_log_unsupported; #ifdef __KVM_HAVE_READONLY_MEM bool readonly_mem_unsupported; #endif diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 572a66a61c29..aa5f27753756 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1103,7 +1103,10 @@ static void update_memslots(struct kvm_memslots *slots, static int check_memory_region_flags(struct kvm *kvm, const struct kvm_userspace_memory_region *mem) { - u32 valid_flags = KVM_MEM_LOG_DIRTY_PAGES; + u32 valid_flags = 0; + + if (!kvm->dirty_log_unsupported) + valid_flags |= KVM_MEM_LOG_DIRTY_PAGES; #ifdef __KVM_HAVE_READONLY_MEM if (!kvm->readonly_mem_unsupported) -- 2.17.1
