From: David Laight <David.Laight@ACULAB.COM>
To: "David Laight" <David.Laight@ACULAB.COM>,
"'Stewart Hildebrand'" <stewart.hildebrand@amd.com>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Nicholas Piggin" <npiggin@gmail.com>,
"Christophe Leroy" <christophe.leroy@csgroup.eu>,
"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Arnd Bergmann" <arnd@arndb.de>,
"Sam Ravnborg" <sam@ravnborg.org>,
"Yongji Xie" <elohimes@gmail.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v2 0/8] PCI: Align small (<4k) BARs
Date: Wed, 17 Jul 2024 13:21:19 +0000 [thread overview]
Message-ID: <9c6845d49fa14d84bb7ada1022147276@AcuMS.aculab.com> (raw)
In-Reply-To: <0da056616de54589bc1d4b95dcdf5d3d@AcuMS.aculab.com>
From: David Laight
> Sent: 17 July 2024 14:15
>
> From: Stewart Hildebrand
> > Sent: 16 July 2024 20:33
> >
> > This series sets the default minimum resource alignment to 4k for memory
> > BARs. In preparation, it makes an optimization and addresses some corner
> > cases observed when reallocating BARs. I consider the prepapatory
> > patches to be prerequisites to changing the default BAR alignment.
>
> Should the BARs be page aligned on systems with large pages?
> At least as an option for hypervisor pass-through and any than can be mmap()ed
> into userspace.
The actual patch says PAGE_SIZE ..
David
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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2024-07-17 13:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-16 19:32 [PATCH v2 0/8] PCI: Align small (<4k) BARs Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 1/8] x86/PCI: Move some logic to new function Stewart Hildebrand
2024-07-17 19:28 ` Philipp Stanner
2024-07-18 14:54 ` Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 2/8] PCI: Don't unnecessarily disable memory decoding Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 3/8] PCI: Restore resource alignment Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 4/8] PCI: Restore memory decoding after reallocation Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 5/8] x86/PCI: Preserve IORESOURCE_STARTALIGN alignment Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 6/8] powerpc/pci: " Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 7/8] PCI: Don't reassign resources that are already aligned Stewart Hildebrand
2024-07-16 19:32 ` [PATCH v2 8/8] PCI: Align small (<4k) BARs Stewart Hildebrand
2024-07-17 13:15 ` [PATCH v2 0/8] " David Laight
2024-07-17 13:21 ` David Laight [this message]
2024-07-17 18:30 ` Stewart Hildebrand
2024-07-18 10:01 ` David Laight
2024-07-18 13:48 ` Stewart Hildebrand
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