Merge remote-tracking branch 'remotes/ehabkost-gl/tags/x86-next-pull-request' into staging

x86 queue, 2021-06-18

Features:
* Add ratelimit for bus locks acquired in guest (Chenyi Qiang)

Documentation:
* SEV documentation updates (Tom Lendacky)
* Add a table showing x86-64 ABI compatibility levels (Daniel P. Berrangé)

Automated changes:
* Update Linux headers to 5.13-rc4 (Eduardo Habkost)

# gpg: Signature made Fri 18 Jun 2021 20:51:26 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost-gl/tags/x86-next-pull-request:
  scripts: helper to generate x86_64 CPU ABI compat info
  docs: add a table showing x86-64 ABI compatibility levels
  docs/interop/firmware.json: Add SEV-ES support
  docs: Add SEV-ES documentation to amd-memory-encryption.txt
  doc: Fix some mistakes in the SEV documentation
  i386: Add ratelimit for bus locks acquired in guest
  Update Linux headers to 5.13-rc4

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

1 files changed, 24 insertions, 0 deletions

diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index ed796fe..d30cf27 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -1246,6 +1246,23 @@ static void x86_machine_set_oem_table_id(Object *obj, const char *value,
     strncpy(x86ms->oem_table_id, value, 8);
 }
 
+static void x86_machine_get_bus_lock_ratelimit(Object *obj, Visitor *v,
+                                const char *name, void *opaque, Error **errp)
+{
+    X86MachineState *x86ms = X86_MACHINE(obj);
+    uint64_t bus_lock_ratelimit = x86ms->bus_lock_ratelimit;
+
+    visit_type_uint64(v, name, &bus_lock_ratelimit, errp);
+}
+
+static void x86_machine_set_bus_lock_ratelimit(Object *obj, Visitor *v,
+                               const char *name, void *opaque, Error **errp)
+{
+    X86MachineState *x86ms = X86_MACHINE(obj);
+
+    visit_type_uint64(v, name, &x86ms->bus_lock_ratelimit, errp);
+}
+
 static void x86_machine_initfn(Object *obj)
 {
     X86MachineState *x86ms = X86_MACHINE(obj);
@@ -1256,6 +1273,7 @@ static void x86_machine_initfn(Object *obj)
     x86ms->pci_irq_mask = ACPI_BUILD_PCI_IRQS;
     x86ms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
     x86ms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
+    x86ms->bus_lock_ratelimit = 0;
 }
 
 static void x86_machine_class_init(ObjectClass *oc, void *data)
@@ -1299,6 +1317,12 @@ static void x86_machine_class_init(ObjectClass *oc, void *data)
                                           "Override the default value of field OEM Table ID "
                                           "in ACPI table header."
                                           "The string may be up to 8 bytes in size");
+
+    object_class_property_add(oc, X86_MACHINE_BUS_LOCK_RATELIMIT, "uint64_t",
+                                x86_machine_get_bus_lock_ratelimit,
+                                x86_machine_set_bus_lock_ratelimit, NULL, NULL);
+    object_class_property_set_description(oc, X86_MACHINE_BUS_LOCK_RATELIMIT,
+            "Set the ratelimit for the bus locks acquired in VMs");
 }
 
 static const TypeInfo x86_machine_info = {