From: andrew.cooper3@citrix•com (Andrew Cooper)
To: linux-arm-kernel@lists•infradead.org
Subject: [Xen-devel] [PATCH v2 08/16] xen/hvm/params: Add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ
Date: Mon, 18 Jan 2016 12:52:28 +0000 [thread overview]
Message-ID: <569CE00C.5050406@citrix.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1601181244300.16178@kaball.uk.xensource.com>
On 18/01/16 12:46, Stefano Stabellini wrote:
> On Mon, 18 Jan 2016, Andrew Cooper wrote:
>> On 18/01/16 12:38, Stefano Stabellini wrote:
>>> On Fri, 15 Jan 2016, Shannon Zhao wrote:
>>>> From: Shannon Zhao <shannon.zhao@linaro•org>
>>>>
>>>> Add a new delivery type:
>>>> val[63:56] == 3: val[15:8] is flag: val[7:0] is a PPI.
>>>> To the flag, bit 0 stands the interrupt mode is edge(1) or level(0) and
>>>> bit 1 stands the interrupt polarity is active low(1) or high(0).
>>>>
>>>> Signed-off-by: Shannon Zhao <shannon.zhao@linaro•org>
>>>> ---
>>>> include/xen/interface/hvm/params.h | 5 +++++
>>>> 1 file changed, 5 insertions(+)
>>>>
>>>> diff --git a/include/xen/interface/hvm/params.h b/include/xen/interface/hvm/params.h
>>>> index a6c7991..550688a 100644
>>>> --- a/include/xen/interface/hvm/params.h
>>>> +++ b/include/xen/interface/hvm/params.h
>>>> @@ -34,6 +34,11 @@
>>>> * Domain = val[47:32], Bus = val[31:16],
>>>> * DevFn = val[15: 8], IntX = val[ 1: 0]
>>>> * val[63:56] == 2: val[7:0] is a vector number.
>>>> + * val[63:56] == 3: val[15:8] is flag of event-channel interrupt:
>>>> + * bit 0: interrupt is edge(1) or level(0) triggered
>>>> + * bit 1: interrupt is active low(1) or high(0)
>>>> + * val[7:0] is PPI number used by event-channel.
>>>> + * This is only used by ARM/ARM64.
>>>> * If val == 0 then CPU0 event-channel notifications are not delivered.
>>>> */
>>>> #define HVM_PARAM_CALLBACK_IRQ 0
>>> Andrew, I think that this patch is correct. Looking back at your
>>> previous comment (http://marc.info/?l=devicetree&m=144804014214262&w=2),
>>> is it possible that you were confused by enum callback_via_type, which
>>> is internal to Xen and offset'ed by 1 compared to the described values
>>> in xen/include/public/hvm/params.h?
>>>
>>> If not, and indeed somebody introduced one more field but failed to
>>> document it, then I suggest she sends a patch to fix the issue as soon
>>> as possible.
>> I was indeed confused - the ABI is utterly mad.
> All right. In that case, Shannon, you can add my
>
> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu•citrix.com>
>
>
>> However, this change does need rebasing over c/s ca5c54b, which was the
>> result of the original discussion.
> c/s ca5c54b is for Xen, while this is a Linux patch (Linux has its own
> set of Xen headers).
All ABI changes need to happen in the Xen public headers first. This
patch cannot be accepted yet.
~Andrew
next prev parent reply other threads:[~2016-01-18 12:52 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 6:55 [PATCH v2 00/16] Add ACPI support for Xen Dom0 on ARM64 Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 01/16] Xen: ACPI: Hide UART used by Xen Shannon Zhao
2016-01-15 15:39 ` Stefano Stabellini
2016-01-18 10:32 ` Mark Rutland
2016-01-18 11:38 ` Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 02/16] xen/grant-table: Move xlated_setup_gnttab_pages to common place Shannon Zhao
2016-01-15 15:53 ` [Xen-devel] " Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 03/16] Xen: xlate: Use page_to_xen_pfn instead of page_to_pfn Shannon Zhao
2016-01-15 17:08 ` [Xen-devel] " Stefano Stabellini
2016-01-18 5:08 ` Shannon Zhao
2016-01-19 14:59 ` Stefano Stabellini
2016-01-19 15:10 ` Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 04/16] arm/xen: Use xen_xlate_map_ballooned_pages to setup grant table Shannon Zhao
2016-01-15 17:21 ` Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 05/16] xen: memory : Add new XENMAPSPACE type XENMAPSPACE_dev_mmio Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 06/16] Xen: ARM: Add support for mapping platform device mmio Shannon Zhao
2016-01-15 17:39 ` [Xen-devel] " Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 07/16] Xen: ARM: Add support for mapping AMBA " Shannon Zhao
2016-01-18 11:58 ` [Xen-devel] " Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 08/16] xen/hvm/params: Add a new delivery type for event-channel in HVM_PARAM_CALLBACK_IRQ Shannon Zhao
2016-01-18 12:38 ` [Xen-devel] " Stefano Stabellini
2016-01-18 12:42 ` Andrew Cooper
2016-01-18 12:46 ` Stefano Stabellini
2016-01-18 12:52 ` Andrew Cooper [this message]
2016-01-20 6:33 ` Shannon Zhao
2016-01-20 8:39 ` Andrew Cooper
2016-01-20 8:45 ` Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 09/16] arm/xen: Get event-channel irq through HVM_PARAM when booting with ACPI Shannon Zhao
2016-01-18 14:38 ` [Xen-devel] " Stefano Stabellini
2016-01-19 8:21 ` Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 10/16] ARM: XEN: Move xen_early_init() before efi_init() Shannon Zhao
2016-01-18 14:59 ` [Xen-devel] " Stefano Stabellini
2016-01-19 8:36 ` Shannon Zhao
2016-01-19 12:14 ` Stefano Stabellini
2016-01-15 6:55 ` [PATCH v2 11/16] ARM64: ACPI: Check if it runs on Xen to enable or disable ACPI Shannon Zhao
2016-01-18 10:41 ` Mark Rutland
2016-01-18 15:07 ` Stefano Stabellini
2016-01-19 8:41 ` Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 12/16] ARM: Xen: Document UEFI support on Xen ARM virtual platforms Shannon Zhao
2016-01-17 3:43 ` Rob Herring
2016-01-18 10:51 ` Mark Rutland
2016-01-18 17:34 ` Stefano Stabellini
2016-01-19 10:25 ` Shannon Zhao
2016-01-19 10:47 ` Mark Rutland
2016-01-19 12:23 ` Stefano Stabellini
2016-01-19 13:13 ` Mark Rutland
2016-01-19 13:18 ` Ard Biesheuvel
2016-01-19 13:43 ` Shannon Zhao
2016-01-19 14:11 ` Stefano Stabellini
2016-01-21 11:50 ` Mark Rutland
2016-01-15 6:55 ` [PATCH v2 13/16] ARM: XEN: Set EFI_PARAVIRT if Xen supports EFI Shannon Zhao
2016-01-18 10:57 ` Mark Rutland
2016-01-15 6:55 ` [PATCH v2 14/16] Xen: EFI: Parse DT parameters for Xen specific UEFI Shannon Zhao
2016-01-18 11:03 ` Mark Rutland
2016-01-18 15:41 ` [Xen-devel] " Stefano Stabellini
2016-01-19 13:19 ` Shannon Zhao
2016-01-19 13:43 ` Mark Rutland
2016-01-19 13:46 ` Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 15/16] XEN: EFI: Move x86 specific codes to architecture directory Shannon Zhao
2016-01-15 6:55 ` [PATCH v2 16/16] ARM64: XEN: Initialize Xen specific UEFI runtime services Shannon Zhao
2016-01-18 11:08 ` Mark Rutland
2016-01-18 17:45 ` Stefano Stabellini
2016-01-18 18:27 ` Mark Rutland
2016-01-19 12:03 ` Stefano Stabellini
2016-01-19 13:03 ` Mark Rutland
2016-01-19 13:31 ` Shannon Zhao
2016-01-19 14:20 ` Stefano Stabellini
2016-01-18 17:03 ` [Xen-devel] " Stefano Stabellini
2016-01-19 13:12 ` Shannon Zhao
2016-01-19 14:24 ` Stefano Stabellini
2016-01-22 3:58 ` Shannon Zhao
2016-01-22 10:57 ` Stefano Stabellini
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