From: Easwar Hariharan <easwar.hariharan@linux.microsoft.com>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: Mukesh R <mrathor@linux.microsoft.com>,
easwar.hariharan@linux.microsoft.com,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
iommu@lists.linux.dev, linux-arch@vger.kernel.org,
jacob.pan@linux.microsoft.com, kys@microsoft.com,
haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
tglx@kernel.org, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
joro@8bytes.org, will@kernel.org, robin.murphy@arm.com,
arnd@arndb.de
Subject: Re: [PATCH V1 3/3] x86/hyperv: Implement root VM IOMMU kernel only driver
Date: Mon, 28 Sep 2026 09:35:22 -0700 [thread overview]
Message-ID: <9f5a919a-5255-4dca-9e83-f124dfec872e@linux.microsoft.com> (raw)
In-Reply-To: <179060271395.122959.9162511491972155683.b4-review@b4>
On 9/28/2026 06:38, Jason Gunthorpe wrote:
>> [ ... 103 lines skipped ... ]
>> +/*
<snip>
>
>> +
>> +static void hv_iommu_get_resv_regions(struct device *dev,
>> + struct list_head *head)
>> +{
>> + struct iommu_resv_region *reg;
>> +
>> + /* reserve the entire LAPIC region */
>> + reg = iommu_alloc_resv_region(0xfee00000, SZ_1M, 0, IOMMU_RESV_MSI,
>> + GFP_KERNEL);
>
> There was some discussion to make a helper for this, I don't see it
> merged yet..
> <snip>
Hi Jason,
That's patch 3 of the Hyper-V guest IOMMU driver series here:
https://lore.kernel.org/all/20260904075512.174154-1-zhangyu1@linux.microsoft.com/T/#m248fd782be21c7fdb79c97b1764658e6c3c5f623
That's awaiting an ack from you and Joerg to be picked up for the next merge window or additional feedback
for the past couple of weeks.
Thanks,
Easwar (he/him)
next prev parent reply other threads:[~2026-09-28 16:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 2:02 [PATCH V1 0/3] Hyper-V: root VM iommu kernel only driver Mukesh R
2026-09-24 2:02 ` [PATCH V1 1/3] PCI: hv: Export hv_build_devid_type_pci() and change return type Mukesh R
2026-09-24 2:02 ` [PATCH V1 2/3] mshv: Import data structs around device domains from hyperv headers Mukesh R
2026-09-24 2:13 ` sashiko-bot
2026-09-24 17:48 ` Easwar Hariharan
2026-09-24 2:02 ` [PATCH V1 3/3] x86/hyperv: Implement root VM IOMMU kernel only driver Mukesh R
2026-09-24 2:16 ` sashiko-bot
2026-09-24 13:35 ` Jörg Rödel
2026-09-25 0:14 ` Mukesh R
2026-09-25 7:13 ` Jörg Rödel
2026-09-28 22:33 ` Mukesh R
2026-09-28 13:38 ` Jason Gunthorpe
2026-09-28 16:35 ` Easwar Hariharan [this message]
2026-09-28 23:33 ` Mukesh R
2026-09-28 23:36 ` Jason Gunthorpe
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