From: Paulo Alcantara <pcacjr@zytor.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: pbonzini@redhat.com, seabios@seabios.org,
Paulo Alcantara <pcacjr@gmail.com>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [SeaBIOS] [PATCH 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table
Date: Sat, 30 May 2015 07:57:29 -0300 [thread overview]
Message-ID: <20150530075729.0d2d28ff@zytor.com> (raw)
In-Reply-To: <1432797215.12688.12.camel@nilsson.home.kraxel.org>
Hi Gerd,
On Thu, 28 May 2015 09:13:35 +0200
Gerd Hoffmann <kraxel@redhat.com> wrote:
> > +Scope(\_SB) {
> > + OperationRegion (RCRB, SystemMemory, 0xfed1c000, 0x4000)
>
> Where does this address come from?
This address is reserved in an ACPI DSDT table for Intel Haswell in
Coreboot project, Vlv2DeviceRefCodePkg package in EDK II as well as my
Haswell laptop on which I can see it through `dmesg` :-)
> Is this a standard location suggested by intel specs?
I haven't found any Intel spec or any other document that suggests such
address, but from "9.4 Memory Map" section in ICH9 spec, it seems safe
to use that MMIO region for the 16KiB of chipset configuration
registers.
> Or is the firmware free to choose it?
Given that, I would say so.
Thanks,
Paulo
--
Paulo Alcantara, C.E.S.A.R
Speaking for myself only.
next prev parent reply other threads:[~2015-05-30 10:58 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 0:29 [Qemu-devel] [PATCH 1/3] ich9: add TCO interface emulation Paulo Alcantara
2015-05-27 0:29 ` [Qemu-devel] [PATCH 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table Paulo Alcantara
2015-05-27 12:03 ` Paolo Bonzini
2015-05-27 17:51 ` Paulo Alcantara
2015-05-28 7:13 ` [Qemu-devel] [SeaBIOS] " Gerd Hoffmann
2015-05-30 10:57 ` Paulo Alcantara [this message]
2015-06-01 7:16 ` Gerd Hoffmann
2015-06-01 11:59 ` Paulo Alcantara
2015-05-27 0:29 ` [Qemu-devel] [PATCH 3/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-05-27 11:58 ` [Qemu-devel] [PATCH 1/3] ich9: add TCO interface emulation Paolo Bonzini
2015-05-27 18:23 ` Paulo Alcantara
2015-05-30 22:04 ` [Qemu-devel] [PATCH v2 " Paulo Alcantara
2015-05-30 22:04 ` [Qemu-devel] [PATCH v2 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table Paulo Alcantara
2015-05-30 22:04 ` [Qemu-devel] [PATCH v2 3/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-01 9:07 ` Paolo Bonzini
2015-06-01 9:05 ` [Qemu-devel] [PATCH v2 1/3] ich9: add TCO interface emulation Paolo Bonzini
2015-06-01 13:38 ` Paulo Alcantara
2015-06-01 21:37 ` Paulo Alcantara
2015-06-01 23:48 ` [Qemu-devel] [PATCH v3 " Paulo Alcantara
2015-06-01 23:48 ` [Qemu-devel] [PATCH v3 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table Paulo Alcantara
2015-06-17 13:33 ` Michael S. Tsirkin
2015-06-18 2:14 ` Paulo Alcantara
2015-06-01 23:48 ` [Qemu-devel] [PATCH v3 3/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-17 13:37 ` Michael S. Tsirkin
2015-06-18 2:23 ` Paulo Alcantara
2015-06-10 13:17 ` [Qemu-devel] [PATCH v3 1/3] ich9: add TCO interface emulation Paulo Alcantara
2015-06-17 13:27 ` Michael S. Tsirkin
2015-06-18 2:10 ` Paulo Alcantara
2015-06-22 0:37 ` [Qemu-devel] [PATCH v4 " Paulo Alcantara
2015-06-22 0:37 ` [Qemu-devel] [PATCH v4 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table Paulo Alcantara
2015-06-22 8:40 ` Michael S. Tsirkin
2015-06-22 12:53 ` Paulo Alcantara
2015-06-23 10:38 ` [Qemu-devel] [SeaBIOS] " Igor Mammedov
2015-06-23 10:58 ` Michael S. Tsirkin
2015-06-23 12:29 ` Igor Mammedov
2015-06-23 12:37 ` Michael S. Tsirkin
2015-06-23 11:15 ` Paolo Bonzini
2015-06-23 11:18 ` Paolo Bonzini
2015-06-23 12:22 ` Michael S. Tsirkin
2015-06-22 0:37 ` [Qemu-devel] [PATCH v4 3/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-22 8:39 ` [Qemu-devel] [PATCH v4 1/3] ich9: add TCO interface emulation Michael S. Tsirkin
2015-06-22 12:30 ` Paulo Alcantara
2015-06-22 12:32 ` Paolo Bonzini
2015-06-22 12:47 ` Michael S. Tsirkin
2015-06-22 13:04 ` Paolo Bonzini
2015-06-22 13:07 ` Michael S. Tsirkin
2015-06-22 13:19 ` Paulo Alcantara
2015-06-22 13:10 ` Markus Armbruster
2015-06-22 8:43 ` Michael S. Tsirkin
2015-06-22 9:45 ` Paolo Bonzini
2015-06-22 12:11 ` Michael S. Tsirkin
2015-06-22 12:36 ` Paulo Alcantara
2015-06-22 12:44 ` Michael S. Tsirkin
2015-06-22 12:59 ` Paolo Bonzini
2015-06-22 18:29 ` Paulo Alcantara
2015-06-22 23:10 ` [Qemu-devel] [PATCH v5 " Paulo Alcantara
2015-06-22 23:10 ` [Qemu-devel] [PATCH v5 2/3] target-i386: reserve RCRB mmio space in ACPI DSDT table Paulo Alcantara
2015-06-23 14:29 ` [Qemu-devel] [SeaBIOS] " Igor Mammedov
2015-06-23 15:33 ` Michael S. Tsirkin
2015-06-23 14:39 ` Igor Mammedov
2015-06-23 15:06 ` Michael S. Tsirkin
2015-06-23 15:12 ` Igor Mammedov
2015-06-23 15:29 ` Michael S. Tsirkin
2015-06-24 15:11 ` [Qemu-devel] " Michael S. Tsirkin
2015-06-24 16:00 ` Paulo Alcantara
2015-06-24 16:04 ` Michael S. Tsirkin
2015-06-22 23:10 ` [Qemu-devel] [PATCH v5 3/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-23 6:39 ` [Qemu-devel] [PATCH v5 1/3] ich9: add TCO interface emulation Michael S. Tsirkin
2015-06-24 18:03 ` [Qemu-devel] [PATCH v6 1/2] " Paulo Alcantara
2015-06-24 18:03 ` [Qemu-devel] [PATCH v6 2/2] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-27 17:56 ` [Qemu-devel] [PATCH v7 1/3] ich9: add TCO interface emulation Paulo Alcantara
2015-06-27 17:56 ` [Qemu-devel] [PATCH v7 2/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-27 17:56 ` [Qemu-devel] [PATCH v7 3/3] ich9: implement strap SPKR pin logic Paulo Alcantara
2015-06-28 8:37 ` Michael S. Tsirkin
2015-06-28 16:21 ` Paulo Alcantara
2015-06-28 17:58 ` [Qemu-devel] [PATCH v8 1/3] ich9: add TCO interface emulation Paulo Alcantara
2015-06-28 17:58 ` [Qemu-devel] [PATCH v8 2/3] tests: add testcase for TCO watchdog emulation Paulo Alcantara
2015-06-28 17:58 ` [Qemu-devel] [PATCH v8 3/3] ich9: implement strap SPKR pin logic Paulo Alcantara
2015-07-01 13:18 ` Paolo Bonzini
2015-07-01 13:31 ` Michael S. Tsirkin
2015-07-01 13:34 ` Paolo Bonzini
2015-07-02 1:30 ` Paulo Alcantara
2015-07-02 6:55 ` Paolo Bonzini
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