linux/drivers/virt
Will Deacon 2459a0b149 drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails
[ Upstream commit d44679fb95 ]

Calling the MMIO_GUARD hypercall from guests which have not been
enrolled (e.g. because they are running without pvmfw) results in
-EINVAL being returned. In this case, MMIO_GUARD is not active
and so we can simply proceed with the normal ioremap() routine.

Don't fail ioremap() if MMIO_GUARD fails; instead WARN_ON_ONCE()
to highlight that the pvm environment is slightly wonky.

Fixes: 0f12694958 ("drivers/virt: pkvm: Intercept ioremap using pKVM MMIO_GUARD hypercall")
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241202145731.6422-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-14 20:03:17 +01:00
..
acrn struct fd layout change (and conversion to accessor helpers) 2024-09-23 09:35:36 -07:00
coco drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails 2024-12-14 20:03:17 +01:00
nitro_enclaves kunit: fix Kconfig for build-in tests USB4 and Nitro Enclaves 2022-09-01 13:00:48 -06:00
vboxguest virt: vbox: utils: fix all kernel-doc warnings 2023-12-23 14:15:46 +01:00
fsl_hypervisor.c virt: fsl: Use of_property_present() for testing DT property presence 2023-04-21 09:20:56 -05:00
Kconfig virt: vmgenid: add support for devicetree bindings 2024-04-27 02:38:34 +02:00
Makefile virt: coco: Add a coco/Makefile and coco/Kconfig 2023-10-19 18:11:38 -07:00
vmgenid.c Merge branch 'acpi-bus' 2024-05-13 19:15:14 +02:00