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From: Paolo Bonzini <pbonzini@redhat.com>
To: Al Stone <al.stone@linaro.org>, Gerd Hoffmann <kraxel@redhat.com>,
	Peter Maydell <peter.maydell@linaro.org>
Cc: "Ian.Campbell@citrix.com" <Ian.Campbell@citrix.com>,
	"linaro-acpi@lists.linaro.org" <linaro-acpi@lists.linaro.org>,
	Claudio Fontana <claudio.fontana@huawei.com>,
	QEMU Developers <qemu-devel@nongnu.org>,
	"stefano.stabellini@citrix.com" <stefano.stabellini@citrix.com>,
	"tech@virtualopensystems.com" <tech@virtualopensystems.com>,
	Parth Dixit <parth.dixit@linaro.org>,
	Christoffer Dall <christoffer.dall@linaro.org>
Subject: Re: [Qemu-devel] [Linaro-acpi] [RFC PATCH 0/7] hw/arm/virt: Dynamic ACPI v5.1 table generation
Date: Thu, 13 Nov 2014 20:22:51 +0100	[thread overview]
Message-ID: <5465050B.4070203@redhat.com> (raw)
In-Reply-To: <5464F590.5060507@linaro.org>



On 13/11/2014 19:16, Al Stone wrote:
>> > [root@fedora ~]# cat /proc/ioports 
>> > [ ... ]
>> >   0600-063f : 0000:00:01.3
>> >     0600-0603 : ACPI PM1a_EVT_BLK
>> >     0604-0605 : ACPI PM1a_CNT_BLK
>> >     0608-060b : ACPI PM_TMR
>> >   0700-070f : 0000:00:01.3
>> >     0700-0707 : piix4_smbus
>> > [ ... ]
> So this is problematic: the PM1a_EVT_BLK and PM1a_CNT_BLK should not
> exist if hardware reduced mode ACPI is being used; the values in the
> FADT should be zero so there should be no ioports (see section 5.2.9
> of the ACPI spec).  If this is from an ARM platform, it _should_ be in
> hardware reduced mode.  QEMU will have to take that into account.

No, this is x86.  As mentioned elsewhere in the thread, we'd have to add
a GPIO controller (e.g. PL061) to mach-virt, to replace GPE.

Paolo

  reply	other threads:[~2014-11-13 19:23 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-30 17:43 [Qemu-devel] [RFC PATCH 0/7] hw/arm/virt: Dynamic ACPI v5.1 table generation Alexander Spyridakis
2014-10-30 17:43 ` [Qemu-devel] [RFC PATCH 1/7] hw/i386: Move ACPI header definitions in an arch-independent location Alexander Spyridakis
2014-10-30 17:44 ` [Qemu-devel] [RFC PATCH 2/7] hw/arm/virt-acpi: Basic skeleton for dynamic generation of ACPI tables Alexander Spyridakis
2014-10-30 17:46   ` Peter Maydell
2014-10-30 17:52 ` [Qemu-devel] [RFC PATCH 0/7] hw/arm/virt: Dynamic ACPI v5.1 table generation Peter Maydell
2014-10-30 18:02   ` [Qemu-devel] [Linaro-acpi] " Mark Rutland
2014-11-05  9:58     ` Claudio Fontana
2014-11-06 12:44       ` Peter Maydell
2014-11-06 12:57         ` Igor Mammedov
2014-11-06 13:33         ` Alexander Spyridakis
2014-11-06 13:52           ` Peter Maydell
2014-11-11 15:29           ` Mark Rutland
2014-11-11 16:31             ` Christoffer Dall
2014-11-11 16:48               ` Mark Rutland
2014-11-11 21:33                 ` Christoffer Dall
2014-11-12 10:38                   ` Mark Rutland
2014-11-12 10:44                     ` Christoffer Dall
2014-11-12 10:55                       ` Julien Grall
2014-11-12 11:07                       ` Mark Rutland
2014-11-12 11:38                         ` Graeme Gregory
2014-11-12 11:52                     ` Paolo Bonzini
2014-11-12 12:04                       ` Mark Rutland
2014-11-12 12:12                         ` Paolo Bonzini
2014-11-12 13:27                         ` Peter Maydell
2014-11-12 13:32                           ` Paolo Bonzini
2014-11-12 15:01                           ` Claudio Fontana
2014-11-12 15:32                             ` Arnd Bergmann
2014-11-12 15:39                               ` Peter Maydell
2014-11-12 15:52                                 ` Paolo Bonzini
2014-11-12 15:57                                   ` Arnd Bergmann
2014-11-12 16:04                                     ` Paolo Bonzini
2014-11-12 16:13                                       ` Arnd Bergmann
2014-11-12 16:25                                         ` Paolo Bonzini
2014-11-12 17:33                                           ` Peter Maydell
2014-11-13  8:32                                           ` Gerd Hoffmann
2014-11-13  8:14                             ` Gerd Hoffmann
2014-11-13  8:10                           ` Gerd Hoffmann
2014-11-13 18:16                             ` Al Stone
2014-11-13 19:22                               ` Paolo Bonzini [this message]
2014-11-14  7:54                               ` Gerd Hoffmann
2014-11-12  9:08             ` Claudio Fontana
2014-11-12 10:56               ` Mark Rutland
2014-11-12 11:15                 ` Arnd Bergmann
2014-11-12 11:34                   ` Christoffer Dall
2014-11-12 11:48                     ` Paolo Bonzini
2014-11-12 12:18                       ` Mark Rutland
2014-11-12 12:27                         ` Paolo Bonzini
2014-11-12 12:40                           ` Christoffer Dall
2014-11-12 13:08                           ` Arnd Bergmann
2014-11-12 13:27                             ` Paolo Bonzini
2014-11-12 13:41                           ` Mark Rutland
2014-11-12 13:59                             ` Paolo Bonzini
2014-11-12 14:10                               ` Mark Rutland
2014-11-12 14:46                                 ` Paolo Bonzini
2014-11-12 13:03                     ` Arnd Bergmann
2014-11-12 13:35                       ` Christoffer Dall
2014-11-12 11:55                   ` Mark Rutland
2014-11-12 18:10               ` Peter Maydell
2014-11-13  9:57                 ` Claudio Fontana
2014-11-17 17:52                   ` Peter Maydell
2014-11-06  6:53     ` Hanjun Guo
2014-11-06 13:30       ` Mark Rutland
2014-11-06 13:33         ` Arnd Bergmann
2014-11-06 15:57       ` Paolo Bonzini
2014-11-06 16:18         ` Igor Mammedov
2014-11-06 16:27           ` Paolo Bonzini
2014-11-07  8:31         ` Hanjun Guo
2015-03-09 12:12   ` Leif Lindholm
2015-03-09 12:28     ` Peter Maydell
2015-03-09 12:47       ` Shannon Zhao
2015-03-09 14:50       ` Leif Lindholm

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