The device tree code checks for the presence of a reset driver and calls the of_reset function pointer by looking up the reset driver as a module. ACPI defines _RST method to perform device level reset. After the _RST method is executed, the OS can resume using the device. This patch checks the presence of _RST method and calls the _RST method when reset is requested. Changes from V5: 1. Handle reset function call failures in open and release (new patch). 2. Bring out extra debug information when failure happens (new patch). 3. Address review comments from Eric in ACPI _RST patch. Sinan Kaya (8): vfio: platform: move reset call to a common function vfio: platform: determine reset capability vfio: platform: add support for ACPI probe vfio: platform: add extra debug info argument to call reset vfio: platform: call _RST method when using ACPI vfio, platform: make reset driver a requirement by default vfio: platform: check reset call return code during open vfio: platform: check reset call return code during release drivers/vfio/platform/vfio_amba.c | 5 + drivers/vfio/platform/vfio_platform.c | 5 + drivers/vfio/platform/vfio_platform_common.c | 169 ++++++++++++++++++++++---- drivers/vfio/platform/vfio_platform_private.h | 2 + 4 files changed, 159 insertions(+), 22 deletions(-) -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
