acrn-hypervisor/hypervisor
Shiqing Gao 3df3c9f6a1 hv: vuart: fix 'Shifting value too far'
MISRA-C requires that shift operation cannot exceed the word length.

What this patch does:
- Fix the bug in 'vuart_init'
  The register 'dll' and 'dlh' should be uint8_t rather than char.
  'dll' is the lower 8-bit of divisor.
  'dlh' is the higher 8-bit of divisor.
  So, the shift value should be 8U rather than 16U.
- Fix other data type issues regarding to the registers in 'struct
  vuart'
  The registers should be unsigned variables.

v1 -> v2:
 * Use a local variable 'uint8_t value_u8 = (uint8_t)value' to avoid
   mutiple times type conversion
 * Use '(uint8_t)divisor' rather than '(uint8_t)(divisor & 0xFFU)' to
   get the lower 8 bit of 'divisor'
   Direct type conversion is safe and simple per Xiangyang's suggestion.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
2018-08-16 09:01:53 +08:00
..
arch/x86 hv:fix return value violations for vpic/vioapic 2018-08-16 09:01:08 +08:00
boot HV: Logical conjunction needs brackets 2018-08-14 09:53:32 +08:00
bsp HV: change wake vector info to accommodate ww32 sbl 2018-08-15 12:20:28 +08:00
common hv:fix return value violations for vpic/vioapic 2018-08-16 09:01:08 +08:00
debug hv: vuart: fix 'Shifting value too far' 2018-08-16 09:01:53 +08:00
dm hv:fix return value violations for vpic/vioapic 2018-08-16 09:01:08 +08:00
include hv: vuart: fix 'Shifting value too far' 2018-08-16 09:01:53 +08:00
lib hv: treewide: fix multiple MISRAC violations 2018-08-15 11:21:09 +08:00
partition hv: Create E820 entries for OS in partitioning mode ACRN 2018-08-13 13:58:32 +08:00
scripts/kconfig HV: make: rename minimalconfig to savedefconfig 2018-06-15 15:50:09 +08:00
Kconfig HV: config: add Kconfig and defconfigs for sbl & uefi 2018-06-08 17:21:13 +08:00
MAINTAINERS update home page information 2018-05-15 17:19:39 +08:00
Makefile hv: add compile time assert for static checks 2018-08-14 13:05:06 +08:00
README.rst initial import 2018-05-11 14:44:28 +08:00

Embedded-Hypervisor
###################

This open source embedded hypervisor defines a software architecture for
running multiple software subsystems managed securely on a consolidated
system (by means of a virtual machine manager), and defines a reference
framework Device Model implementation for devices emulation

This embedded hypervisor is type-1 reference hypervisor, running
directly on the system hardware. It can be used for building software
defined cockpit (SDC) or In-Vehicle Experience (IVE) solutions running
on Intel Architecture Apollo Lake platforms. As a reference
implementation, it provides the basis for embedded hypervisor vendors to
build solutions with an open source reference I/O mediation solution,
and provides auto makers a reference software stack for SDC usage.

This embedded hypervisor is able to support both Linux* and Android* as
a Guest OS, managed by the hypervisor, where applications can run.

This embedded hypervisor is a partitioning hypervisor reference stack,
also suitable for non-automotive IoT & embedded device solutions. It
will be addressing the gap that currently exists between datacenter
hypervisors, hard partitioning hypervisors, and select industrial
applications.  Extending the scope of this open source embedded
hypervisor relies on the involvement of community developers like you!