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[Qemu-devel] [PATCH/RFC 1/6] vfio: platform: Allow runtime override of r
From: |
Geert Uytterhoeven |
Subject: |
[Qemu-devel] [PATCH/RFC 1/6] vfio: platform: Allow runtime override of reset_required |
Date: |
Fri, 9 Feb 2018 16:16:48 +0100 |
Currently reset_required can be configured using a module parameter.
But it cannot be overridden at runtime through sysfs, as the parameter
is read-only.
Make it writeable for root, as this is useful if vfio-platform is
builtin, so the following works:
echo 0 > /sys/module/vfio_platform/parameters/reset_required
Not-Signed-off-by: Geert Uytterhoeven <address@hidden>
---
TODO: Implement a vfio reset driver instead.
---
drivers/vfio/platform/vfio_platform.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vfio/platform/vfio_platform.c
b/drivers/vfio/platform/vfio_platform.c
index 6561751a1063ee29..ef89146deddcea80 100644
--- a/drivers/vfio/platform/vfio_platform.c
+++ b/drivers/vfio/platform/vfio_platform.c
@@ -24,7 +24,7 @@
#define DRIVER_DESC "VFIO for platform devices - User Level meta-driver"
static bool reset_required = true;
-module_param(reset_required, bool, 0444);
+module_param(reset_required, bool, 0644);
MODULE_PARM_DESC(reset_required, "override reset requirement (default: 1)");
/* probing devices from the linux platform bus */
--
2.7.4
- [Qemu-devel] [PATCH/RFC 0/6] R-Car Gen3 GPIO Pass-Through Prototype (Linux), Geert Uytterhoeven, 2018/02/09
- [Qemu-devel] [PATCH/RFC 4/6] arm64: renesas_defconfig: Enable VFIO_PLATFORM and VFIO_NOIOMMU, Geert Uytterhoeven, 2018/02/09
- [Qemu-devel] [PATCH/RFC 3/6] clk: renesas: r8a7795: Mark the GPIO6 clock critical, Geert Uytterhoeven, 2018/02/09
- [Qemu-devel] [PATCH/RFC 1/6] vfio: platform: Allow runtime override of reset_required,
Geert Uytterhoeven <=
- [Qemu-devel] [PATCH/RFC 6/6] arm64: Add virt_defconfig, Geert Uytterhoeven, 2018/02/09
- [Qemu-devel] [PATCH/RFC 5/6] gpio: rcar: Add virtualization workarounds, Geert Uytterhoeven, 2018/02/09
- [Qemu-devel] [PATCH/RFC 2/6] vfio: Ignore real IOMMUs if CONFIG_VFIO_NOIOMMU=y, Geert Uytterhoeven, 2018/02/09