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authorRichard Henderson <richard.henderson@linaro.org>2024-07-24 11:25:40 +1000
committerRichard Henderson <richard.henderson@linaro.org>2024-07-24 11:25:40 +1000
commit43f59bf76535b8842a762f8625b96091611aac11 (patch)
treeb5ddc93558ebdf538a5656a31a958526cb68bfde /accel/kvm/kvm-all.c
parent5885bcef3d760e84d17eb4113e85f2aea0bd0582 (diff)
parent7c912ffb59e8137091894d767433e65c3df8b0bf (diff)
downloadfocaccia-qemu-43f59bf76535b8842a762f8625b96091611aac11.tar.gz
focaccia-qemu-43f59bf76535b8842a762f8625b96091611aac11.zip
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386/kvm: support for reading RAPL MSRs using a helper program
* hpet: emulation improvements

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# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  hpet: avoid timer storms on periodic timers
  hpet: store full 64-bit target value of the counter
  hpet: accept 64-bit reads and writes
  hpet: place read-only bits directly in "new_val"
  hpet: remove unnecessary variable "index"
  hpet: ignore high bits of comparator in 32-bit mode
  hpet: fix and cleanup persistence of interrupt status
  Add support for RAPL MSRs in KVM/Qemu
  tools: build qemu-vmsr-helper
  qio: add support for SO_PEERCRED for socket channel
  target/i386: do not crash if microvm guest uses SGX CPUID leaves

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/kvm/kvm-all.c')
-rw-r--r--accel/kvm/kvm-all.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 0f110cce3e..67b773692f 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -3776,6 +3776,21 @@ static void kvm_set_device(Object *obj,
     s->device = g_strdup(value);
 }
 
+static void kvm_set_kvm_rapl(Object *obj, bool value, Error **errp)
+{
+    KVMState *s = KVM_STATE(obj);
+    s->msr_energy.enable = value;
+}
+
+static void kvm_set_kvm_rapl_socket_path(Object *obj,
+                                         const char *str,
+                                         Error **errp)
+{
+    KVMState *s = KVM_STATE(obj);
+    g_free(s->msr_energy.socket_path);
+    s->msr_energy.socket_path = g_strdup(str);
+}
+
 static void kvm_accel_instance_init(Object *obj)
 {
     KVMState *s = KVM_STATE(obj);
@@ -3795,6 +3810,7 @@ static void kvm_accel_instance_init(Object *obj)
     s->xen_gnttab_max_frames = 64;
     s->xen_evtchn_max_pirq = 256;
     s->device = NULL;
+    s->msr_energy.enable = false;
 }
 
 /**
@@ -3839,6 +3855,17 @@ static void kvm_accel_class_init(ObjectClass *oc, void *data)
     object_class_property_set_description(oc, "device",
         "Path to the device node to use (default: /dev/kvm)");
 
+    object_class_property_add_bool(oc, "rapl",
+                                   NULL,
+                                   kvm_set_kvm_rapl);
+    object_class_property_set_description(oc, "rapl",
+        "Allow energy related MSRs for RAPL interface in Guest");
+
+    object_class_property_add_str(oc, "rapl-helper-socket", NULL,
+                                  kvm_set_kvm_rapl_socket_path);
+    object_class_property_set_description(oc, "rapl-helper-socket",
+        "Socket Path for comminucating with the Virtual MSR helper daemon");
+
     kvm_arch_accel_class_init(oc);
 }