From: Stefan Berger <stefanb@linux.ibm.com>
To: "Mohammadfaiz Bawa" <mbawa@redhat.com>,
"Stefan Berger" <stefanb@linux.vnet.ibm.com>,
"Philippe Mathieu-Daudé" <philmd@mailo.com>,
qemu-devel@nongnu.org, "Peter Maydell" <peter.maydell@linaro.org>
Cc: Zhao Liu <zhao1.liu@intel.com>
Subject: Re: [PATCH v3 3/3] hw/core/machine: disable tpm-tis-device PPI for machine type <= 11.0
Date: Tue, 7 Jul 2026 11:02:19 -0400 [thread overview]
Message-ID: <00a43a10-67f2-45ce-b2fd-15e4bb32b101@linux.ibm.com> (raw)
In-Reply-To: <20260619093140.832136-4-mbawa@redhat.com>
On 6/19/26 5:31 AM, Mohammadfaiz Bawa wrote:
> Set ppi=off in hw_compat_11_0[] so that older machine types do not
> register the "tpm-ppi" RAMBlock, restoring backward migration.
>
> Signed-off-by: Mohammadfaiz Bawa <mbawa@redhat.com>
> ---
> hw/core/machine.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index 9a10e45aab..92cf5e1ca1 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -44,6 +44,7 @@ GlobalProperty hw_compat_11_0[] = {
> { "chardev-vc", "encoding", "cp437" },
> { "tpm-crb", "cap-chunk", "off" },
> { "tpm-crb", "x-allow-chunk-migration", "off" },
> + { "tpm-tis-device", "ppi", "off" },
> { TYPE_ARM_SMMUV3, "ats", "off" },
> { TYPE_ARM_SMMUV3, "ril", "on" },
> { TYPE_ARM_SMMUV3, "ssidsize", "0" },
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
next prev parent reply other threads:[~2026-07-07 15:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-19 9:31 [PATCH v3 0/3] hw/tpm: fix tpm-tis-device backward migration on aarch64 Mohammadfaiz Bawa
2026-06-19 9:31 ` [PATCH v3 1/3] hw/core/platform-bus: guard platform_bus_get_mmio_addr() against NULL Mohammadfaiz Bawa
2026-06-19 9:31 ` [PATCH v3 2/3] hw/tpm: gate PPI support on tpm-tis-device behind a device property Mohammadfaiz Bawa
2026-07-07 15:01 ` Stefan Berger
2026-06-19 9:31 ` [PATCH v3 3/3] hw/core/machine: disable tpm-tis-device PPI for machine type <= 11.0 Mohammadfaiz Bawa
2026-07-07 15:02 ` Stefan Berger [this message]
2026-06-29 4:53 ` [PATCH v3 0/3] hw/tpm: fix tpm-tis-device backward migration on aarch64 Mohammadfaiz Bawa
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