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From 74b3e92dcb9e343e135a681259514b4fd28086ea Mon Sep 17 00:00:00 2001
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From: Eric Auger <eric.auger@redhat.com>
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Date: Fri, 6 May 2022 15:25:09 +0200
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Subject: [PATCH 4/5] sysemu: tpm: Add a stub function for TPM_IS_CRB
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RH-Author: Eric Auger <eric.auger@redhat.com>
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RH-MergeRequest: 84: vfio/common: Remove spurious tpm-crb-cmd misalignment warning
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RH-Commit: [1/2] 0ab55ca1aa12a3a7cbdef5a378928f75e030e536 (eauger1/centos-qemu-kvm)
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RH-Bugzilla: 2037612
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Andrew Jones <drjones@redhat.com>
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Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2037612
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Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=45166961
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Upstream Status: YES
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Tested: With TPM-CRB and VFIO
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In a subsequent patch, VFIO will need to recognize if
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a memory region owner is a TPM CRB device. Hence VFIO
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needs to use TPM_IS_CRB() even if CONFIG_TPM is unset. So
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let's add a stub function.
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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Suggested-by: Cornelia Huck <cohuck@redhat.com>
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Reviewed-by: Stefan Berger <stefanb@linnux.ibm.com>
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Link: https://lore.kernel.org/r/20220506132510.1847942-2-eric.auger@redhat.com
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Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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(cherry picked from commit 4168cdad398843ed53d650a27651868b4d3e21c9)
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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---
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include/sysemu/tpm.h | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/include/sysemu/tpm.h b/include/sysemu/tpm.h
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index 68b2206463..fb40e30ff6 100644
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--- a/include/sysemu/tpm.h
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+++ b/include/sysemu/tpm.h
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@@ -80,6 +80,12 @@ static inline TPMVersion tpm_get_version(TPMIf *ti)
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#define tpm_init() (0)
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#define tpm_cleanup()
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+/* needed for an alignment check in non-tpm code */
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+static inline Object *TPM_IS_CRB(Object *obj)
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+{
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+ return NULL;
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+}
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+
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#endif /* CONFIG_TPM */
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#endif /* QEMU_TPM_H */
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--
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2.31.1
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