a9e2064e49
KVM TDX guest doesn't allow KVM clock. Although guest TD doesn't use a KVM clock, qemu creates it by default with i386 KVM enabled. When guest TD crashes and KVM_RUN returns -EIO, the following message is shown. KVM_GET_CLOCK failed: Input/output error The message confuses the user and misleads the debug process. Don't create KVM_CLOCK when confidential computing is enabled, and it has a property to disable the pv clock. Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Binbin Wu <binbin.wu@linux.intel.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/*
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* QEMU Confidential Guest support
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*
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* Copyright Red Hat.
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*
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* Authors:
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* David Gibson <david@gibson.dropbear.id.au>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*
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*/
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#include "qemu/osdep.h"
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#include "exec/confidential-guest-support.h"
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OBJECT_DEFINE_ABSTRACT_TYPE(ConfidentialGuestSupport,
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confidential_guest_support,
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CONFIDENTIAL_GUEST_SUPPORT,
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OBJECT)
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static bool cgs_get_disable_pv_clock(Object *obj, Error **errp)
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{
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ConfidentialGuestSupport *cgs = CONFIDENTIAL_GUEST_SUPPORT(obj);
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return cgs->disable_pv_clock;
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}
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static void cgs_set_disable_pv_clock(Object *obj, bool value, Error **errp)
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{
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ConfidentialGuestSupport *cgs = CONFIDENTIAL_GUEST_SUPPORT(obj);
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cgs->disable_pv_clock = value;
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}
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static void confidential_guest_support_class_init(ObjectClass *oc, void *data)
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{
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object_class_property_add_bool(oc, CONFIDENTIAL_GUEST_SUPPORT_DISABLE_PV_CLOCK,
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cgs_get_disable_pv_clock, cgs_set_disable_pv_clock);
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}
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static void confidential_guest_support_init(Object *obj)
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{
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}
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static void confidential_guest_support_finalize(Object *obj)
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{
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}
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