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Tsirkin" , Ani Sinha , Igor Mammedov , Richard Henderson , Marcel Apfelbaum , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v3 2/5] hw/tpm: Add TPMIfClass::ppi_enabled field Date: Tue, 17 Mar 2026 13:02:38 +0100 Message-ID: <20260317120241.16320-3-philmd@linaro.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260317120241.16320-1-philmd@linaro.org> References: <20260317120241.16320-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42c; envelope-from=philmd@linaro.org; helo=mail-wr1-x42c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1773749177072158500 Each TMP derived device has a @ppi_enabled field, itself exposed as a QOM property. External layers (like the ACPI subsystem) wanting to know whether a device implements PPI has to check for the QOM property available. This can be simplified by declaring a single field in the TPM interface. Here we add such field to TPMIfClass, before converting each TPM devices to use it in the following commits. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Stefan Berger --- include/system/tpm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/system/tpm.h b/include/system/tpm.h index b90dd4e8cb0..9458ad6668a 100644 --- a/include/system/tpm.h +++ b/include/system/tpm.h @@ -43,6 +43,7 @@ struct TPMIfClass { enum TpmModel model; void (*request_completed)(TPMIf *obj, int ret); enum TPMVersion (*get_version)(TPMIf *obj); + bool ppi_enabled; }; =20 #define TYPE_TPM_TIS_ISA "tpm-tis" @@ -84,6 +85,9 @@ static inline bool tpm_ppi_enabled(TPMIf *ti) if (!ti) { return false; } + if (TPM_IF_GET_CLASS(ti)->ppi_enabled) { + return true; + } return object_property_get_bool(OBJECT(ti), "ppi", &error_abort); } =20 --=20 2.53.0