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Re: [PATCH v3 0/2] tpm: CRB: Use ram_device for "tpm-crb-cmd" region
From: |
Alex Williamson |
Subject: |
Re: [PATCH v3 0/2] tpm: CRB: Use ram_device for "tpm-crb-cmd" region |
Date: |
Wed, 26 Jan 2022 16:51:43 -0700 |
On Thu, 20 Jan 2022 01:12:40 +0100
Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> This is a respin of Eric's work, but not making tpm_crb.c target
> specific.
>
> Based-on: <20220120000836.229419-1-f4bug@amsat.org>
> "exec/cpu: Make host pages variables / macros 'target agnostic'"
> 20220120000836.229419-1-f4bug@amsat.org/">https://lore.kernel.org/qemu-devel/20220120000836.229419-1-f4bug@amsat.org/
>
> --
>
> Eric's v2 cover:
>
> This series aims at removing a spurious error message we get when
> launching a guest with a TPM-CRB device and VFIO-PCI devices.
>
> The CRB command buffer currently is a RAM MemoryRegion and given
> its base address alignment, it causes an error report on
> vfio_listener_region_add(). This series proposes to use a ram-device
> region instead which helps in better assessing the dma map error
> failure on VFIO side.
>
> Eric Auger (2):
> tpm: CRB: Use ram_device for "tpm-crb-cmd" region
> hw/vfio/common: Silence ram device offset alignment error traces
>
> hw/tpm/tpm_crb.c | 22 ++++++++++++++++++++--
> hw/vfio/common.c | 15 ++++++++++++++-
> hw/vfio/trace-events | 1 +
> 3 files changed, 35 insertions(+), 3 deletions(-)
>
Unfortunately, FTB:
../hw/tpm/tpm_crb.c: In function ‘tpm_crb_realize’:
../hw/tpm/tpm_crb.c:297:33: warning: implicit declaration of function
‘HOST_PAGE_ALIGN’ [-Wimplicit-function-declaration]
297 | HOST_PAGE_ALIGN(CRB_CTRL_CMD_SIZE));
| ^~~~~~~~~~~~~~~
../hw/tpm/tpm_crb.c:297:33: warning: nested extern declaration of
‘HOST_PAGE_ALIGN’ [-Wnested-externs]
This is a regression since Eric's v2. Thanks,
Alex