From: Arun Menon <armenon@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Ani Sinha" <anisinha@redhat.com>,
"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
"Laurent Vivier" <lvivier@redhat.com>,
"Zhao Liu" <zhao1.liu@intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
marcandre.lureau@redhat.com, "Fabiano Rosas" <farosas@suse.de>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Yanan Wang" <wangyanan55@huawei.com>,
"Arun Menon" <armenon@redhat.com>
Subject: [RFC v2 7/7] hw/tpm: Increase TPM TIS max buffer size to 8192
Date: Thu, 19 Mar 2026 19:23:16 +0530 [thread overview]
Message-ID: <20260319135316.37412-8-armenon@redhat.com> (raw)
In-Reply-To: <20260319135316.37412-1-armenon@redhat.com>
- Double the size from 4096 to 8192 so that we can have bigger buffer
enabling support for PQC algorithms in the TPM TIS interface.
- v185 of TCG TPM rolls out PQC algorithm support. [1]
[1] section 46 https://members.trustedcomputinggroup.org/wg/TCG/document/previewpdf/45151
Signed-off-by: Arun Menon <armenon@redhat.com>
---
hw/tpm/tpm_tis.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/tpm/tpm_tis.h b/hw/tpm/tpm_tis.h
index 184632ff66..0df35d5a54 100644
--- a/hw/tpm/tpm_tis.h
+++ b/hw/tpm/tpm_tis.h
@@ -33,7 +33,7 @@
#define TPM_TIS_IS_VALID_LOCTY(x) ((x) < TPM_TIS_NUM_LOCALITIES)
-#define TPM_TIS_BUFFER_MAX 4096
+#define TPM_TIS_BUFFER_MAX 8192
typedef enum {
TPM_TIS_STATE_IDLE = 0,
--
2.53.0
next prev parent reply other threads:[~2026-03-19 13:55 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-19 13:53 [RFC v2 0/7] hw/tpm: CRB chunking capability to handle PQC Arun Menon
2026-03-19 13:53 ` [RFC v2 1/7] hw/tpm: Add TPM CRB chunking fields Arun Menon
2026-03-19 13:53 ` [RFC v2 2/7] hw/tpm: Refactor CRB_CTRL_START register access Arun Menon
2026-03-19 13:53 ` [RFC v2 3/7] hw/tpm: Add internal buffer state for chunking Arun Menon
2026-03-26 11:27 ` marcandre.lureau
2026-03-19 13:53 ` [RFC v2 4/7] hw/tpm: Implement TPM CRB chunking logic Arun Menon
2026-03-26 11:27 ` marcandre.lureau
2026-03-19 13:53 ` [RFC v2 5/7] test/qtest: Add test for tpm crb chunking Arun Menon
2026-03-26 11:27 ` marcandre.lureau
2026-03-26 11:32 ` Marc-André Lureau
2026-03-19 13:53 ` [RFC v2 6/7] hw/tpm: Add support for VM migration with TPM CRB chunking Arun Menon
2026-03-26 11:27 ` marcandre.lureau
2026-03-19 13:53 ` Arun Menon [this message]
2026-03-20 18:57 ` [RFC v2 7/7] hw/tpm: Increase TPM TIS max buffer size to 8192 Stefan Berger
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