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Re: [Qemu-devel] [PATCH v15.1 4/6] pvpanic: add document of pvpanic
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH v15.1 4/6] pvpanic: add document of pvpanic |
Date: |
Tue, 26 Mar 2013 09:07:04 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
On 03/25/2013 09:03 PM, Hu Tao wrote:
> Signed-off-by: Hu Tao <address@hidden>
> ---
> docs/specs/pvpanic.txt | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
> create mode 100644 docs/specs/pvpanic.txt
> +ISA Interface
> +-------------
> +
> +pvpanic uses port 0x505 to receive a panic event from the guest. On
> +written, bit 0 is set to indicate guest panic has happened. On read, bit
s/written/write/
Also, mention that the remaining bits are reserved, and should be
written as 0, and ignored on read (that way, the spec can be updated
when we define a later bit, and older hosts won't be trying to set or
act on bits they don't understand).
> +ACPI Interface
> +--------------
> +
> +pvpanic device is defined with ACPI ID "QEMU0001". Custom methods:
> +
> +RDPT: To determine whether guest panic notification is supported.
> +Rrguments: None
> +Return: Returns a byte, bit 0 set to indicate guest panic
> + notification is supported.
> +
> +WRPT: To send a guest panic event
> +Arguments: Arg0 is a byte, with bit 0 set to indicate guest panic has
> + happened.
Again, documenting that the remaining bits are reserved (write 0, ignore
on read) is a wise addition.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH v15 0/6] Add pvpanic device to deal with guest panic event, Hu Tao, 2013/03/21
- [Qemu-devel] [PATCH v15 3/6] introduce a new qom device to deal with panicked event, Hu Tao, 2013/03/21
- [Qemu-devel] [PATCH v15 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/21
- Re: [Qemu-devel] [PATCH v15 4/6] pvpanic: add document of pvpanic, Paolo Bonzini, 2013/03/21
- Re: [Qemu-devel] [PATCH v15 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/22
- [Qemu-devel] [PATCH v15.1 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/25
- Re: [Qemu-devel] [PATCH v15.1 4/6] pvpanic: add document of pvpanic, Paolo Bonzini, 2013/03/26
- Re: [Qemu-devel] [PATCH v15.1 4/6] pvpanic: add document of pvpanic,
Eric Blake <=
- [Qemu-devel] [PATCH v15.2 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/28
- Re: [Qemu-devel] [PATCH v15.2 4/6] pvpanic: add document of pvpanic, Eric Blake, 2013/03/28
- Re: [Qemu-devel] [PATCH v15.2 4/6] pvpanic: add document of pvpanic, Paolo Bonzini, 2013/03/28
- Re: [Qemu-devel] [PATCH v15.2 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/29
- Re: [Qemu-devel] [PATCH v15.2 4/6] pvpanic: add document of pvpanic, Hu Tao, 2013/03/29
Re: [Qemu-devel] [PATCH v15 4/6] pvpanic: add document of pvpanic, Eric Blake, 2013/03/21
[Qemu-devel] [PATCH v15 2/6] add a new qevent: QEVENT_GUEST_PANICKED, Hu Tao, 2013/03/21
[Qemu-devel] [PATCH v15 1/6] add a new runstate: RUN_STATE_GUEST_PANICKED, Hu Tao, 2013/03/21
[Qemu-devel] [RFC][PATCH v15 6/6] pvpanic: pass configurable ioport to seabios, Hu Tao, 2013/03/21