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HV: treewide: enforce unsignedness of pcpu_id

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In the hypervisor, physical cpu id is defined as "int" or "uint32_t"
type in the hypervisor. So there are some sign conversion issues
about  physical cpu id (pcpu_id) reported by static analysis tool.
Sign conversion violates the rules of MISRA C:2012.

In this patch, define physical cpu id as "uint16_t" type for all
modules in the hypervisor and change related codes. The valid
range of pcpu_id is 0~65534, INVALID_PCPU_ID is defined to the
invalid pcpu_id for error detection, BROADCAST_PCPU_ID is
broadcast pcpu_id used to notify all valid pcpu.

The type of pcpu_id in the struct vcpu and vcpu_id is "int" type,
this will be fixed in another patch.

V1-->V2:
    *  Change the type of pcpu_id from uint32_t to uint16_t;
    *  Define INVALID_PCPU_ID for error detection;
    *  Define BROADCAST_PCPU_ID to notify all valid pcpu.

V2-->V3:
    *  Update comments for INVALID_PCPU_ID and BROADCAST_PCPU_ID;
    *  Update addtional pcpu_id;
    *  Convert hexadecimals to unsigned to meet the type of pcpu_id;
    *  Clean up for MIN_PCPU_ID and MAX_PCPU_ID, they will be
       defined by configuration.
Note: fix bug in the init_lapic(), the pcpu_id shall be less than 8,
this is constraint by implement in the init_lapic().
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Xiangyang Wu
2018-06-20 15:42:52 +08:00
committed by lijinxia
parent 2922a657c9
commit 3027bfab10
37 changed files with 110 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
hypervisor/include/debug/trace.h
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@@ -73,7 +73,7 @@ struct trace_entry {
} __attribute__((aligned(8)));
static inline bool
trace_check(int cpu_id, __unused int evid)
trace_check(uint16_t cpu_id, __unused int evid)
{
if (cpu_id >= phy_cpu_num)
return false;
@@ -85,7 +85,7 @@ trace_check(int cpu_id, __unused int evid)
}
static inline void
_trace_put(int cpu_id, int evid, struct trace_entry *entry)
_trace_put(uint16_t cpu_id, int evid, struct trace_entry *entry)
{
struct shared_buf *sbuf = (struct shared_buf *)
per_cpu(sbuf, cpu_id)[ACRN_TRACE];
@@ -99,7 +99,7 @@ static inline void
TRACE_2L(int evid, uint64_t e, uint64_t f)
{
struct trace_entry entry;
int cpu_id = get_cpu_id();
uint16_t cpu_id = get_cpu_id();
if (!trace_check(cpu_id, evid))
return;
@@ -114,7 +114,7 @@ TRACE_4I(int evid, uint32_t a, uint32_t b, uint32_t c,
uint32_t d)
{
struct trace_entry entry;
int cpu_id = get_cpu_id();
uint16_t cpu_id = get_cpu_id();
if (!trace_check(cpu_id, evid))
return;
@@ -131,7 +131,7 @@ TRACE_6C(int evid, uint8_t a1, uint8_t a2, uint8_t a3,
uint8_t a4, uint8_t b1, uint8_t b2)
{
struct trace_entry entry;
int cpu_id = get_cpu_id();
uint16_t cpu_id = get_cpu_id();
if (!trace_check(cpu_id, evid))
return;
@@ -152,7 +152,7 @@ static inline void
TRACE_16STR(int evid, const char name[])
{
struct trace_entry entry;
int cpu_id = get_cpu_id();
uint16_t cpu_id = get_cpu_id();
int len;
int i;