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Re: [Qemu-devel] [PATCH for 2.8 v4 1/1] cadence_uart: Check baud rate ge
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH for 2.8 v4 1/1] cadence_uart: Check baud rate generator and divider values on migration |
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Date: |
Tue, 13 Dec 2016 12:26:25 +0000 |
On 7 December 2016 at 17:53, Alistair Francis
<address@hidden> wrote:
> The Cadence UART device emulator calculates speed by dividing the
> baud rate by a 'baud rate generator' & 'baud rate divider' value.
> The device specification defines these register values to be
> non-zero and within certain limits. Checks were recently added when
> writing to these registers but not when restoring from migration.
>
> This patch adds checks when restoring from migration to avoid divide by
> zero errors.
>
> Reported-by: Huawei PSIRT <address@hidden>
> Signed-off-by: Alistair Francis <address@hidden>
Applied to target-arm.next for 2.9, thanks.
-- PMM