From: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>
To: Bjorn Helgaas <helgaas@kernel.org>
Cc: "Bjorn Helgaas" <bhelgaas@google.com>,
"Jürgen Groß" <jgross@suse.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
xen-devel <xen-devel@lists.xenproject.org>,
linux-kernel@vger.kernel.org, regressions@lists.linux.dev,
"Felix Fietkau" <nbd@nbd.name>,
"Lorenzo Bianconi" <lorenzo@kernel.org>,
"Ryder Lee" <ryder.lee@mediatek.com>
Subject: Re: Config space access to Mediatek MT7922 doesn't work after device reset in Xen PV dom0 (regression, Linux 6.12)
Date: Thu, 30 Jan 2025 05:55:55 +0100 [thread overview]
Message-ID: <Z5sGW4b0pMtm38Y-@mail-itl> (raw)
In-Reply-To: <20250129184825.GA484760@bhelgaas>
[-- Attachment #1: Type: text/plain, Size: 18529 bytes --]
On Wed, Jan 29, 2025 at 12:48:25PM -0600, Bjorn Helgaas wrote:
> On Wed, Jan 29, 2025 at 03:10:49AM +0100, Marek Marczykowski-Górecki wrote:
> > On Tue, Jan 28, 2025 at 07:15:26PM -0600, Bjorn Helgaas wrote:
> > > On Fri, Jan 17, 2025 at 01:05:30PM +0100, Marek Marczykowski-Górecki wrote:
> > > > After updating PV dom0 to Linux 6.12, The Mediatek MT7922 device reports
> > > > all 0xff when accessing its config space. This happens only after device
> > > > reset (which is also triggered when binding the device to the
> > > > xen-pciback driver).
> > >
> > > Thanks for the report and for all the debugging you've already done!
> > >
> > > > Reproducer:
> > > >
> > > > # lspci -xs 01:00.0
> > > > 01:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
> > > > 00: c3 14 16 06 00 00 10 00 00 00 80 02 10 00 00 00
> > > > ...
> > > > # echo 1 > /sys/bus/pci/devices/0000:01:00.0/reset
> > > > # lspci -xs 01:00.0
> > > > 01:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
> > > > 00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> > > >
> > > > The same operation done on Linux 6.12 running without Xen works fine.
> > > >
> > > > git bisect points at:
> > > >
> > > > commit d591f6804e7e1310881c9224d72247a2b65039af
> > > > Author: Bjorn Helgaas <bhelgaas@google.com>
> > > > Date: Tue Aug 27 18:48:46 2024 -0500
> > > >
> > > > PCI: Wait for device readiness with Configuration RRS
> > > >
> > > > part of that commit:
> > > > @@ -1311,9 +1320,15 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
> > > > return -ENOTTY;
> > > > }
> > > >
> > > > - pci_read_config_dword(dev, PCI_COMMAND, &id);
> > > > - if (!PCI_POSSIBLE_ERROR(id))
> > > > - break;
> > > > + if (root && root->config_crs_sv) {
> > > > + pci_read_config_dword(dev, PCI_VENDOR_ID, &id);
> > > > + if (!pci_bus_crs_vendor_id(id))
> > > > + break;
> > > > + } else {
> > > > + pci_read_config_dword(dev, PCI_COMMAND, &id);
> > > > + if (!PCI_POSSIBLE_ERROR(id))
> > > > + break;
> > > > + }
> > > >
> > > >
> > > > Adding some debugging, the PCI_VENDOR_ID read in pci_dev_wait() returns
> > > > initially 0xffffffff. If I extend the condition with
> > > > "&& !PCI_POSSIBLE_ERROR(id)", then the issue disappear. But reading the
> > > > patch description, it would break VF.
> > > > I'm not sure where the issue is, but given it breaks only when running
> > > > with Xen, I guess something is wrong with "Configuration RRS Software
> > > > Visibility" in that case.
> > >
> > > I'm missing something. If you get 0xffffffff, that is not the 0x0001
> > > Vendor ID, so pci_dev_wait() should exit immediately.
> >
> > I'm not sure what is going on there either, but my _guess_ is that the
> > loop exits too early due to the above. And it makes some further actions
> > to fail.
>
> Seems like a good guess worth investigating. Maybe log all config
> accesses to this device after the FLR and see what we're doing?
I've added logging of all config read/write to this device. Full log at
[1].
A little explanation:
- it's done in pci_conf_read/pci_conf_write in https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=xen/arch/x86/pci.c;h=97b792e578f1093194466081ad3651ade21cae7d;hb=HEAD
- cf8 means cf8 port value (BDF + register)
- bytes is read/write size (1/2/4)
- offset is the offset in the register (on top of cf8), but not in data
- data is either retrieved value, or written value, depending on
function
- it's logging only accesses to 01:00.0
interesting part:
lspci before reset:
(XEN) d0v3 conf read cf8 0x80010000 bytes 4 offset 0 data 0x61614c3
(XEN) d0v3 conf read cf8 0x80010004 bytes 4 offset 0 data 0x100000
(XEN) d0v3 conf read cf8 0x80010008 bytes 4 offset 0 data 0x2800000
(XEN) d0v3 conf read cf8 0x8001000c bytes 4 offset 0 data 0x10
(XEN) d0v3 conf read cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v3 conf read cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v3 conf read cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v3 conf read cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x80010028 bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x8001002c bytes 4 offset 0 data 0xe61614c3
(XEN) d0v3 conf read cf8 0x80010030 bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x80010034 bytes 4 offset 0 data 0x80
(XEN) d0v3 conf read cf8 0x80010038 bytes 4 offset 0 data 0
(XEN) d0v3 conf read cf8 0x8001003c bytes 4 offset 0 data 0x1ff
(XEN) d0v3 conf read cf8 0x80010080 bytes 4 offset 0 data 0x2e010
(XEN) d0v3 conf read cf8 0x800100e0 bytes 4 offset 0 data 0x18af805
(XEN) d0v3 conf read cf8 0x800100f8 bytes 4 offset 0 data 0xc8030001
reset:
(XEN) d0v1 conf read cf8 0x800100fc bytes 2 offset 0 data 0x8
(XEN) d0v1 conf read cf8 0x800100fc bytes 2 offset 0 data 0x8
(XEN) d0v1 conf read cf8 0x8001008c bytes 4 offset 0 data 0x145dc12
(XEN) d0v1 conf read cf8 0x80010000 bytes 4 offset 0 data 0x61614c3
(XEN) d0v1 conf read cf8 0x80010004 bytes 4 offset 0 data 0x100000
(XEN) d0v1 conf read cf8 0x80010008 bytes 4 offset 0 data 0x2800000
(XEN) d0v1 conf read cf8 0x8001000c bytes 4 offset 0 data 0x10
(XEN) d0v1 conf read cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v1 conf read cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v1 conf read cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v1 conf read cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x80010028 bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x8001002c bytes 4 offset 0 data 0xe61614c3
(XEN) d0v1 conf read cf8 0x80010030 bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x80010034 bytes 4 offset 0 data 0x80
(XEN) d0v1 conf read cf8 0x80010038 bytes 4 offset 0 data 0
(XEN) d0v1 conf read cf8 0x8001003c bytes 4 offset 0 data 0x1ff
(XEN) d0v1 conf read cf8 0x80010088 bytes 2 offset 0 data 0x2910
(XEN) d0v1 conf read cf8 0x80010090 bytes 2 offset 0 data 0x1c2
(XEN) d0v1 conf read cf8 0x800100a8 bytes 2 offset 0 data 0x400
(XEN) d0v1 conf read cf8 0x800100b0 bytes 2 offset 0 data 0x2
(XEN) d0v1 conf read cf8 0x80010004 bytes 2 offset 2 data 0x10
(XEN) d0v1 conf read cf8 0x80010034 bytes 1 offset 0 data 0x80
(XEN) d0v1 conf read cf8 0x80010080 bytes 2 offset 0 data 0xe010
(XEN) d0v1 conf read cf8 0x800100e0 bytes 2 offset 0 data 0xf805
(XEN) d0v1 conf read cf8 0x800100f8 bytes 2 offset 0 data 0x1
(XEN) d0v1 conf write cf8 0x80010004 bytes 2 offset 0 data 0x400
(XEN) d0v1 conf read cf8 0x80010088 bytes 2 offset 2 data 0x9
(XEN) d0v1 conf read cf8 0x80010088 bytes 2 offset 0 data 0x2910
(XEN) d0v1 conf write cf8 0x80010088 bytes 2 offset 0 data 0xa910
(XEN) d0v2 conf read cf8 0x80010000 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf read cf8 0x80010090 bytes 2 offset 0 data 0xffff
(XEN) d0v2 conf write cf8 0x80010090 bytes 2 offset 0 data 0xfffc
(XEN) d0v2 conf write cf8 0x80010090 bytes 2 offset 0 data 0xffff
(XEN) d0v2 conf write cf8 0x80010088 bytes 2 offset 0 data 0x2910
(XEN) d0v2 conf write cf8 0x80010090 bytes 2 offset 0 data 0x1c2
(XEN) d0v2 conf write cf8 0x800100a8 bytes 2 offset 0 data 0x400
(XEN) d0v2 conf write cf8 0x800100b0 bytes 2 offset 0 data 0x2
(XEN) d0v2 conf read cf8 0x8001003c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001003c bytes 4 offset 0 data 0x1ff
(XEN) d0v2 conf read cf8 0x80010038 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010038 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010034 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010034 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010030 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010030 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001002c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001002c bytes 4 offset 0 data 0xe61614c3
(XEN) d0v2 conf read cf8 0x80010028 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010028 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010024 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010024 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010020 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010020 bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x8001001c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001001c bytes 4 offset 0 data 0
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010018 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010018 bytes 4 offset 0 data 0x90b00004
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010014 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010014 bytes 4 offset 0 data 0x80
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x80010010 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010010 bytes 4 offset 0 data 0x1090000c
(XEN) d0v2 conf read cf8 0x8001000c bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x8001000c bytes 4 offset 0 data 0x10
(XEN) d0v2 conf read cf8 0x80010008 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010008 bytes 4 offset 0 data 0x2800000
(XEN) d0v2 conf read cf8 0x80010004 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010004 bytes 4 offset 0 data 0x100000
(XEN) d0v2 conf read cf8 0x80010000 bytes 4 offset 0 data 0xffffffff
(XEN) d0v2 conf write cf8 0x80010000 bytes 4 offset 0 data 0x61614c3
(XEN) d0v2 conf read cf8 0x80010004 bytes 2 offset 2 data 0xffff
(XEN) d0v2 conf read cf8 0x80010034 bytes 1 offset 0 data 0xff
(XEN) d0v2 conf read cf8 0x800100fc bytes 2 offset 0 data 0xffff
[1] https://gist.github.com/marmarek/b4391c71801145e52590e877c559c5e0
--
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
next prev parent reply other threads:[~2025-01-30 4:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-17 12:05 Config space access to Mediatek MT7922 doesn't work after device reset in Xen PV dom0 (regression, Linux 6.12) Marek Marczykowski-Górecki
2025-01-29 1:15 ` Bjorn Helgaas
2025-01-29 2:10 ` Marek Marczykowski-Górecki
2025-01-29 3:03 ` Bjorn Helgaas
2025-01-29 3:22 ` Marek Marczykowski-Górecki
2025-01-29 3:40 ` Bjorn Helgaas
2025-01-29 3:47 ` Marek Marczykowski-Górecki
2025-01-29 13:32 ` Bjorn Helgaas
2025-01-29 13:52 ` Jan Beulich
2025-01-29 14:50 ` Bjorn Helgaas
2025-01-29 9:17 ` Jan Beulich
2025-01-29 11:53 ` Marek Marczykowski-Górecki
2025-01-29 12:49 ` Jan Beulich
2025-01-29 13:28 ` Bjorn Helgaas
2025-01-29 13:54 ` Jan Beulich
2025-01-29 18:48 ` Bjorn Helgaas
2025-01-30 4:55 ` Marek Marczykowski-Górecki [this message]
2025-01-30 9:30 ` Jan Beulich
2025-01-30 21:31 ` Bjorn Helgaas
2025-01-31 7:13 ` Jan Beulich
2025-01-31 8:36 ` Marek Marczykowski-Górecki
2025-02-05 22:14 ` Marek Marczykowski-Górecki
2025-02-07 22:00 ` Bjorn Helgaas
2025-02-07 22:10 ` Marek Marczykowski-Górecki
2025-02-07 22:23 ` Bjorn Helgaas
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