From: Thomas Gleixner <tglx@linutronix.de>
To: David Woodhouse <dwmw2@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Juergen Gross <jgross@suse.com>,
xen-devel <xen-devel@lists.xen.org>
Cc: x86@kernel.org, Joerg Roedel <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Marc Zyngier <maz@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jason Gunthorpe <jgg@mellanox.com>,
Dave Jiang <dave.jiang@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
Kevin Tian <kevin.tian@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Logan Gunthorpe <logang@deltatee.com>,
Ashok Raj <ashok.raj@intel.com>, Jon Mason <jdmason@kudzu.us>,
Allen Hubbe <allenbh@gmail.com>
Subject: Re: [patch V3 16/22] genirq/msi: Provide new domain id based interfaces for freeing interrupts
Date: Mon, 16 Jan 2023 20:49:02 +0100 [thread overview]
Message-ID: <87edrumf9t.ffs@tglx> (raw)
In-Reply-To: <57f3f757aaceccf866172faaf48ab62916f24d8b.camel@infradead.org>
David!
On Mon, Jan 16 2023 at 19:28, David Woodhouse wrote:
> On Mon, 2023-01-16 at 20:22 +0100, Thomas Gleixner wrote:
>> > Tested-by: David Woodhouse <dwmw@amazon.co.uk>
>> >
>> > Albeit only under qemu with
>> > https://git.infradead.org/users/dwmw2/qemu.git/shortlog/refs/heads/xenfv
>> > and not under real Xen.
>>
>> Five levels of emulation. What could possibly go wrong?
>
> It's the opposite — this is what happened when I threw my toys out of
> the pram and said, "You're NOT doing that with nested virtualization!".
>
> One level of emulation. We host guests that think they're running on
> Xen, directly in QEMU/KVM by handling the hypercalls and event
> channels, grant tables, etc.
>
> We virtualised Xen itself :)
Groan. Can we please agree on *one* hypervisor instead of growing
emulators for all other hypervisors in each of them :)
> Now you have no more excuses for breaking Xen guest mode!
No cookies, you spoilsport! :)
tglx
next prev parent reply other threads:[~2023-01-16 19:49 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 23:24 [patch V3 00/22] genirq, PCI/MSI: Support for per device MSI and PCI/IMS - Part 2 API rework Thomas Gleixner
2022-11-24 23:24 ` [patch V3 01/22] genirq/msi: Move IRQ_DOMAIN_MSI_NOMASK_QUIRK to MSI flags Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 02/22] genirq/irqdomain: Make struct irqdomain readable Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 03/22] genirq/irqdomain: Rename irq_domain::dev to irq_domain::pm_dev Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] genirq/irqdomain: Rename irq_domain::dev to irq_domain:: Pm_dev tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 04/22] genirq/msi: Create msi_api.h Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 05/22] genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_PARENT Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 06/22] genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_DEVICE Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 07/22] genirq/msi: Check for invalid MSI parent domain usage Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 08/22] genirq/msi: Move xarray into a separate struct and create an array Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 09/22] genirq/msi: Add pointers for per device irq domains Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 10/22] genirq/msi: Make MSI descriptor iterators device domain aware Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 11/22] genirq/msi: Make msi_get_virq() " Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Ahmed S. Darwish
2022-11-24 23:24 ` [patch V3 12/22] genirq/msi: Rename msi_add_msi_desc() to msi_insert_msi_desc() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 13/22] genirq/msi: Make descriptor allocation device domain aware Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 14/22] genirq/msi: Make descriptor freeing " Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 15/22] genirq/msi: Make msi_add_simple_msi_descs() device " Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 16/22] genirq/msi: Provide new domain id based interfaces for freeing interrupts Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2023-01-16 9:56 ` [patch V3 16/22] " David Woodhouse
2023-01-16 10:10 ` David Woodhouse
2023-01-16 16:35 ` Thomas Gleixner
2023-01-16 18:11 ` Thomas Gleixner
2023-01-16 18:58 ` David Woodhouse
2023-01-16 19:22 ` Thomas Gleixner
2023-01-16 19:28 ` David Woodhouse
2023-01-16 19:49 ` Thomas Gleixner [this message]
2023-01-17 8:22 ` David Woodhouse
2023-01-16 19:43 ` [tip: x86/urgent] x86/pci/xen: Fixup fallout from the PCI/MSI overhaul tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 17/22] genirq/msi: Provide new domain id allocation functions Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 18/22] PCI/MSI: Use msi_domain_alloc/free_irqs_all_locked() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 19/22] platform-msi: Switch to the domain id aware MSI interfaces Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Ahmed S. Darwish
2022-11-24 23:24 ` [patch V3 20/22] bus: fsl-mc-msi: Switch to domain id aware interfaces Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:24 ` [patch V3 21/22] oc: ti: ti_sci_inta_msi: Switch to domain id aware MSI functions Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Ahmed S. Darwish
2022-11-24 23:24 ` [patch V3 22/22] genirq/msi: Remove unused alloc/free interfaces Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-28 2:33 ` [patch V3 00/22] genirq, PCI/MSI: Support for per device MSI and PCI/IMS - Part 2 API rework Tian, Kevin
2022-12-05 11:04 ` Marc Zyngier
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