Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Various fixes
* libdaxctl support to correctly align devdax character devices (Jingqi)
* initial-all-set support for live migration (Jay)
* forbid '-numa node, mem' for 5.1 and newer machine types (Igor)
* x87 fixes (Joseph)
* Tighten memory_region_access_valid (Michael) and fix fallout (myself)
* Replay fixes (Pavel)

# gpg: Signature made Fri 26 Jun 2020 14:42:17 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (31 commits)
  i386: Mask SVM features if nested SVM is disabled
  ibex_uart: fix XOR-as-pow
  vmport: move compat properties to hw_compat_5_0
  hyperv: vmbus: Remove the 2nd IRQ
  kvm: i386: allow TSC to differ by NTP correction bounds without TSC scaling
  numa: forbid '-numa node, mem' for 5.1 and newer machine types
  osdep: Make MIN/MAX evaluate arguments only once
  target/i386: Add notes for versioned CPU models
  target/i386: reimplement fpatan using floatx80 operations
  target/i386: reimplement fyl2x using floatx80 operations
  target/i386: reimplement fyl2xp1 using floatx80 operations
  target/i386: reimplement fprem, fprem1 using floatx80 operations
  softfloat: return low bits of quotient from floatx80_modrem
  softfloat: do not set denominator high bit for floatx80 remainder
  softfloat: do not return pseudo-denormal from floatx80 remainder
  softfloat: fix floatx80 remainder pseudo-denormal check for zero
  softfloat: merge floatx80_mod and floatx80_rem
  target/i386: reimplement f2xm1 using floatx80 operations
  xen: Actually fix build without passthrough
  Makefile: Install qemu-[qmp/ga]-ref.* into the directory "interop"
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 14 insertions, 7 deletions

diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index f24d7da783..d54a8701d8 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -101,7 +101,7 @@ struct KVMState
     bool kernel_irqchip_required;
     OnOffAuto kernel_irqchip_split;
     bool sync_mmu;
-    bool manual_dirty_log_protect;
+    uint64_t manual_dirty_log_protect;
     /* The man page (and posix) say ioctl numbers are signed int, but
      * they're not.  Linux, glibc and *BSD all treat ioctl numbers as
      * unsigned, and treating them as signed here can break things */
@@ -1995,6 +1995,7 @@ static int kvm_init(MachineState *ms)
     int ret;
     int type = 0;
     const char *kvm_type;
+    uint64_t dirty_log_manual_caps;
 
     s = KVM_STATE(ms->accelerator);
 
@@ -2120,14 +2121,20 @@ static int kvm_init(MachineState *ms)
     s->coalesced_pio = s->coalesced_mmio &&
                        kvm_check_extension(s, KVM_CAP_COALESCED_PIO);
 
-    s->manual_dirty_log_protect =
+    dirty_log_manual_caps =
         kvm_check_extension(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2);
-    if (s->manual_dirty_log_protect) {
-        ret = kvm_vm_enable_cap(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2, 0, 1);
+    dirty_log_manual_caps &= (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE |
+                              KVM_DIRTY_LOG_INITIALLY_SET);
+    s->manual_dirty_log_protect = dirty_log_manual_caps;
+    if (dirty_log_manual_caps) {
+        ret = kvm_vm_enable_cap(s, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2, 0,
+                                   dirty_log_manual_caps);
         if (ret) {
-            warn_report("Trying to enable KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 "
-                        "but failed.  Falling back to the legacy mode. ");
-            s->manual_dirty_log_protect = false;
+            warn_report("Trying to enable capability %"PRIu64" of "
+                        "KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 but failed. "
+                        "Falling back to the legacy mode. ",
+                        dirty_log_manual_caps);
+            s->manual_dirty_log_protect = 0;
         }
     }