From: Julien Grall <julien.grall@arm.com>
To: Jan Beulich <JBeulich@suse.com>,
roger.pau@citrix.com,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: andrew.cooper3@citrix.com, xen-devel@lists.xen.org,
wei.liu2@citrix.com, ian.jackson@eu.citrix.com,
zhaoshenglong@huawei.com
Subject: Re: [PATCH v1 00/20] Make ACPI builder available to components other than hvmloader
Date: Thu, 7 Jul 2016 10:14:10 +0100 [thread overview]
Message-ID: <577E1D62.2090004@arm.com> (raw)
In-Reply-To: <577E306202000078000FC016@prv-mh.provo.novell.com>
On 07/07/16 09:35, Jan Beulich wrote:
>>>> On 06.07.16 at 18:32, <boris.ostrovsky@oracle.com> wrote:
>> On 07/06/2016 12:04 PM, Roger Pau Monné wrote:
>>> On Tue, Jul 05, 2016 at 03:04:59PM -0400, Boris Ostrovsky wrote:
>>>> * Don't set HW_REDUCED_ACPI flags: this flag is only available starting with ACPI v5
>>> Hm, I still think HW_REDUCED_ACPI should be set for the time being,
>>> considering that we don't provide PM timer or RTC for example. Not setting
>>> this would be a violation of the ACPI specification, and would mean
>>> introducing Xen specific hacks yet again to guest OSes, in order to disable
>>> those devices.
>>>
>>> Is the fact that HW_REDUCED_ACPI was introduced in ACPI v5 a problem?
>>
>> Yes, because we build v2 tables and they are somewhat different.
>
> So couldn't we switch to building v5 tables (or even v6) for PVH
> (and perhaps re-using the "acpi=" config setting to allow specifying a
> version - with any value above 1 indicating the requested version)? I
> certainly agree that setting a v5 flag in a v2 table is bad (best we can
> hope for is that any consumer would ignore such a flag).
FWIW, if we switch to ACPI v5.1 or later, it will be easier to merge the
ACPI building code with ARM.
Regards,
--
Julien Grall
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next prev parent reply other threads:[~2016-07-07 9:14 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-05 19:04 [PATCH v1 00/20] Make ACPI builder available to components other than hvmloader Boris Ostrovsky
2016-07-05 19:05 ` [PATCH v1 01/20] hvmloader: Provide hvmloader_acpi_build_tables() Boris Ostrovsky
2016-07-06 14:47 ` Konrad Rzeszutek Wilk
2016-07-08 9:52 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 02/20] acpi/hvmloader: Move acpi_info initialization out of ACPI code Boris Ostrovsky
2016-07-07 16:58 ` Ian Jackson
2016-07-07 17:09 ` Boris Ostrovsky
2016-07-07 17:15 ` Wei Liu
2016-07-07 17:45 ` Boris Ostrovsky
2016-07-08 15:06 ` Konrad Rzeszutek Wilk
2016-07-08 15:50 ` Ian Jackson
2016-07-08 15:57 ` Boris Ostrovsky
2016-07-08 16:21 ` Ian Jackson
2016-07-11 12:10 ` Wei Liu
2016-07-11 14:47 ` Lars Kurth
2016-07-11 14:54 ` Konrad Rzeszutek Wilk
2016-07-11 15:06 ` Boris Ostrovsky
2016-07-11 15:38 ` Ian Jackson
2016-07-11 15:47 ` Ian Jackson
2016-07-11 16:07 ` Boris Ostrovsky
2016-07-08 10:10 ` Jan Beulich
2016-07-08 14:39 ` Boris Ostrovsky
2016-07-08 15:11 ` Jan Beulich
2016-07-08 16:14 ` Boris Ostrovsky
2016-08-01 10:09 ` Jan Beulich
2016-08-01 14:06 ` Boris Ostrovsky
2016-08-01 14:18 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 03/20] acpi/hvmloader: Initialize vm_gid data outside " Boris Ostrovsky
2016-07-08 10:18 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 04/20] acpi/hvmloader: Decide which SSDTs to install in hvmloader Boris Ostrovsky
2016-07-08 10:27 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 05/20] acpi/hvmloader: Move passthrough initialization from ACPI code Boris Ostrovsky
2016-07-08 10:46 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 06/20] acpi/hvmloader: Collect processor and NUMA info in hvmloader Boris Ostrovsky
2016-07-08 13:36 ` Jan Beulich
2016-07-08 15:08 ` Boris Ostrovsky
2016-07-08 15:14 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 07/20] acpi/hvmloader: Set TIS header address " Boris Ostrovsky
2016-07-08 13:38 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 08/20] acpi/hvmloader: Make providing IOAPIC in MADT optional Boris Ostrovsky
2016-07-08 13:41 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 09/20] acpi/hvmloader: Build WAET optionally Boris Ostrovsky
2016-07-08 13:42 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 10/20] acpi/hvmloader: Replace mem_alloc() and virt_to_phys() with memory ops Boris Ostrovsky
2016-07-08 13:58 ` Jan Beulich
2016-07-08 15:23 ` Boris Ostrovsky
2016-07-08 15:35 ` Jan Beulich
2016-07-08 16:19 ` Boris Ostrovsky
2016-07-19 9:11 ` Jan Beulich
2016-07-19 14:08 ` Boris Ostrovsky
2016-07-05 19:05 ` [PATCH v1 11/20] acpi/hvmloader: Translate all addresses when assigning addresses in ACPI tables Boris Ostrovsky
2016-07-08 14:31 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 12/20] acpi/hvmloader: Link ACPI object files directly Boris Ostrovsky
2016-07-08 14:51 ` Jan Beulich
2016-07-08 15:41 ` Boris Ostrovsky
2016-07-05 19:05 ` [PATCH v1 13/20] acpi/hvmloader: Include file/paths adjustments Boris Ostrovsky
2016-07-08 15:51 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 14/20] acpi: Move ACPI code to tools/libacpi Boris Ostrovsky
2016-08-03 16:00 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 15/20] x86: Add more checks verifying that PIT/PIC/IOAPIC are emulated Boris Ostrovsky
2016-08-03 16:04 ` Jan Beulich
2016-07-05 19:05 ` [PATCH v1 16/20] x86: Allow LAPIC-only emulation_flags for HVM guests Boris Ostrovsky
2016-08-03 16:11 ` Jan Beulich
2016-08-03 16:15 ` Andrew Cooper
2016-07-05 19:05 ` [PATCH v1 17/20] libacpi: Build DSDT for PVH guests Boris Ostrovsky
2016-07-05 19:05 ` [PATCH v1 18/20] libxl/acpi: Add ACPI e820 entry Boris Ostrovsky
2016-07-06 10:00 ` Julien Grall
2016-07-06 15:43 ` Boris Ostrovsky
2016-07-05 19:05 ` [PATCH v1 19/20] libxl/pvhv2: Include APIC page in MMIO hole for PVHv2 guests Boris Ostrovsky
2016-07-07 16:47 ` Wei Liu
2016-07-07 17:02 ` Boris Ostrovsky
2016-07-07 17:16 ` Wei Liu
2016-07-05 19:05 ` [PATCH v1 20/20] libxl/acpi: Build ACPI tables for HVMlite guests Boris Ostrovsky
2016-07-06 11:05 ` Julien Grall
2016-07-06 15:50 ` Boris Ostrovsky
2016-07-06 16:04 ` Julien Grall
2016-07-06 16:30 ` Boris Ostrovsky
2016-07-06 17:03 ` Julien Grall
2016-07-06 17:33 ` Boris Ostrovsky
2016-07-07 8:38 ` Jan Beulich
2016-07-07 15:08 ` Boris Ostrovsky
2016-07-07 15:12 ` Julien Grall
2016-07-07 15:24 ` Jan Beulich
2016-07-08 10:55 ` Wei Liu
2016-07-08 14:48 ` Boris Ostrovsky
2016-07-08 16:07 ` Wei Liu
2016-07-08 17:20 ` Boris Ostrovsky
2016-07-11 10:47 ` Wei Liu
2016-07-11 13:33 ` Boris Ostrovsky
2016-07-11 13:39 ` Julien Grall
2016-07-11 13:42 ` Wei Liu
2016-07-11 13:58 ` Julien Grall
2016-07-11 13:41 ` Wei Liu
2016-07-11 14:40 ` Boris Ostrovsky
2016-07-12 14:30 ` Wei Liu
2016-07-11 14:00 ` Anthony PERARD
2016-07-06 16:04 ` [PATCH v1 00/20] Make ACPI builder available to components other than hvmloader Roger Pau Monné
2016-07-06 16:32 ` Boris Ostrovsky
2016-07-07 8:35 ` Jan Beulich
2016-07-07 9:14 ` Julien Grall [this message]
2016-07-07 9:20 ` Jan Beulich
2016-07-07 9:29 ` Julien Grall
2016-07-07 15:04 ` Boris Ostrovsky
2016-07-07 15:10 ` Jan Beulich
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