ac0a286f4d
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the OvmfPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
/** @file
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Functions to make Xen hypercalls.
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Copyright (C) 2014, Citrix Ltd.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PiDxe.h>
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#include <IndustryStandard/Xen/hvm/params.h>
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#include <IndustryStandard/Xen/memory.h>
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#include <Library/DebugLib.h>
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#include <Library/XenHypercallLib.h>
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RETURN_STATUS
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EFIAPI
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XenHypercallLibConstruct (
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VOID
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)
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{
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XenHypercallLibInit ();
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//
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// We don't fail library construction, since that has catastrophic
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// consequences for client modules (whereas those modules may easily be
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// running on a non-Xen platform). Instead, XenHypercallIsAvailable()
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// will return FALSE.
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//
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return RETURN_SUCCESS;
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}
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UINT64
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EFIAPI
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XenHypercallHvmGetParam (
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IN UINT32 Index
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)
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{
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xen_hvm_param_t Parameter;
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INTN Error;
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Parameter.domid = DOMID_SELF;
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Parameter.index = Index;
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Error = XenHypercall2 (
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__HYPERVISOR_hvm_op,
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HVMOP_get_param,
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(INTN)&Parameter
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);
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if (Error != 0) {
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DEBUG ((
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DEBUG_ERROR,
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"XenHypercall: Error %Ld trying to get HVM parameter %d\n",
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(INT64)Error,
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Index
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));
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return 0;
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}
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return Parameter.value;
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}
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INTN
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EFIAPI
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XenHypercallMemoryOp (
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IN UINTN Operation,
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IN OUT VOID *Arguments
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)
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{
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return XenHypercall2 (
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__HYPERVISOR_memory_op,
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Operation,
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(INTN)Arguments
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);
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}
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INTN
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EFIAPI
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XenHypercallEventChannelOp (
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IN INTN Operation,
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IN OUT VOID *Arguments
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)
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{
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return XenHypercall2 (
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__HYPERVISOR_event_channel_op,
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Operation,
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(INTN)Arguments
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);
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}
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