Commit Graph

574 Commits

Author SHA1 Message Date
Xiangyang Wu 1185884b97 HV:treewide:Clean up field names of struct cpuinfo_x86
In the data struct cpuinfo_x86, some field names have
prefix x86, others don't have prefix.

In order to unify names, update field names of struct
cpuinfo_x86 as per its usage purpose, remove prefix x86.

V1-->V2:
	Resolve conflict in cpu.c by rebase command
V2-->V3:
        Remove track-on id as per jack's comments

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 13:24:55 +08:00
Junjie Mao abe5cb4afe HV: include: integral type cleanup
This patch cleans up the integral type violations to MISRA C rules, mostly
related to signed constants that should be unsigned but also spelling out two
integer narrowing and dropping some macros negating unsigned integers.

v1 -> v2:

    * Drop INT_ROUNDUPx macros since they are never used.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 13:10:10 +08:00
Junjie Mao 3956ce1596 HV: io: spell out explicit narrowing of integers
The MMIO/PIO write APIs in io.h always take a uint32_t value but may uses it as
8, 16 or 32-bit integers. This patch converts the prototypes to align with their
functionality.

The pointer conversion and assignment are splitted to separate statements to
prevent static checkers from being confused about the underlying types.

v1 -> v2:

    * Change the prototype of mmio-related functions, instead of keeping the
      explicit conversions internal. The addresses are kept void* since in most
      cases hva (in void*) is passed.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 13:10:10 +08:00
Junjie Mao 0f777d3fe1 HV: assert: use signed int for __LINE__
GCC preprocessor expands __LINE__ to signed decimal integers. Keep the prototype
of __assert aligned with this.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 13:10:10 +08:00
Junjie Mao d0c61ce424 HV: trace: integral type cleanup
In the current trace.h, the entries use proper unsigned types while some
function prototypes and local variables still use plain 'int', resulting in
implicit signedness conversions.

This patch makes the following conversions:

    * evid: int -> uint32_t,
    * n_data & cpu: 8-bit bit-field -> uint8_t,
    * local variable holding the value from strnlen_s(): int -> size_t.

Note: In the following definition:

    struct trace_entry {
        uint64_t tsc; /* TSC */
        uint64_t id:48;
	....

The type of bit-field ''id'' cannot be uint32_t since gcc complains about
bit-fields larger than the type. Thus this patch keeps it as is.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 13:10:10 +08:00
Yang, Yu-chu e263d8ebb9 HV: No assignment inside while loop condition
The assigment should be done outside while loop condition. To fix
it, one assigment initializaion and update statement of for loop
have been applied. The only while loop reminds to avoid very long
for loop expression.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-10 12:59:12 +08:00
Huihuang Shi 0ccd74b947 HV:modified vm_description and vm_hw_info memebers' type
transfer num_vcpus,exp_num_vcpus to uint16_t.
transfer vm_hw_num_cores to uint16_t.

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 12:42:22 +08:00
Yang, Yu-chu 39159ebe16 HV: Assignment should not mix with operator
Removed the postfix and prefix operation in assignment expression.
Noncompliant code example:
1) *a++ = *b ++;
2) a = arr[--b];

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-10 11:56:36 +08:00
Yonghua Huang 2e3135042a HV: Rename 'CPU_BOOT_ID' to 'BOOT_CPU_ID'
- code cleanup to set a more smooth name

Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
2018-07-10 11:51:12 +08:00
Yang, Yu-chu e7aa00b83a HV: Avoiding the chained assignment
To follow the Misra C standard, doing one assignment per line to
make code is clearly readable and reduces the confusion of its
intetion or typo.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-10 11:49:50 +08:00
Yang, Yu-chu cfca49d7c6 Changing the mem_read* from macro to inline
To be consistant with inline function mem_write, modifying the
mem_read* and using inline function instead.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-10 11:47:45 +08:00
Yang, Yu-chu 0419816574 HV: Avoiding assignment opperation inside macro
To follow the Misra-c standard, the assignment operation inside
function-like macro should be avoided. Replaced the violations
macro using inline function instead.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-10 11:47:45 +08:00
Kaige Fu 688b0cdb9c HV: instr_emul: Return -EINVAL if inst_len equals 0
inst_len with 0 length should be treated as invaild value. This patch move 0 length
check to the begainning of the function and return -EINVAL if inst_len == 0.

Tracked-On: ccm0001001-247210
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
2018-07-10 11:31:13 +08:00
Xiangyang Wu b79f350977 HV:CPU: Add 'U/UL' for constant value in CPU module
There are unsinged constant values don't have 'U/UL' suffix
in the HV reported by static analysis tool.

Add 'U/UL' suffix for unsigned constant values as needed.

Tracked-on: ccm0001001-247033
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
2018-07-10 10:28:33 +08:00
Xiangyang Wu 90d8e28560 HV:CPU: Narrow integer conversion
There are some narrow integer conversion violations
in the HV reported by static analysis tools.

The narrow integer conversions are resolved by
following methods:
	* Explicit type conversion as needed;
	* Update suffix of constant value as 'U'
	  as needed.

cked-on: ccm0001001-247033
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
2018-07-10 10:28:33 +08:00
Junjie Mao e6499674fd HV: ioapic: clean up remaining integral-related violations
This patch cleans up the remaining integral-related violations in ioapic.c,
including

    * integral narrowing, and
    * explicit conversion between signed & unsigned integers.

Tracked-on: ccm0001001-247033
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 10:28:03 +08:00
Junjie Mao c477138f19 HV: ioapic: convert pins to uint8_t
Currently IOAPIC pins are represented using various types, including uint16_t,
int, uint8_t and uint32_t. This patch converts all pins to uint8_t since the
maximum number of interrupt input pins per IOAPIC is limited to 240. The special
value IOAPIC_INVALID_PIN is defined to indicate that a valid pin cannot be
found.

This type clean up also has the following impacts.

    * The values in the ''legacy_irq_to_pin'' table are piggybacked with their
      trigger mode. This patch splits them as the piggyback prevents us from
      using a uint8_t[] for this table, and these two information are never used
      at the same time.

    * The ''offset'' parameter in ioapic_read_reg32 & ioapic_write_reg32 are
      promoted to uint32_t to minimize explicit type conversions and keep
      aligned with the type of formal parameters of mmio_(read|write)_long.

Tracked-on: ccm0001001-247033
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 10:28:03 +08:00
Xiangyang Wu 49d1dc1534 HV:treewide: Clean up -1U or -1UL
According to C99 standard, -1 integer constant with 'U/UL'
suffix has no type.

To explicit the integer constant:
Update -1U or -1UL as ~0U or ~0UL, or invalid number according
to usage case.

V1-->V2:
	Update parameter name and type of send_startup_ipi since
	the second parameter is used as pcpu_id;
	Update related comments for code clearity.
V2-->V3:
	Update comments of struct acrn_irqline;
	rename  cpu_startup_dest as dest_pcpu_id in the second
	parameter of send_startup_ipi.

Tracked-on: ccm0001001-247033
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-10 10:27:33 +08:00
Jack Ren d924482ca7 hv: update versioning scheme
* introduce EXTRA_VERSION to replace RC_VERSION
* add daily tag into the version information
* unify the hypervisor and device model version

Signed-off-by: Jack Ren <jack.ren@intel.com>
2018-07-09 18:12:14 +08:00
Yang, Yu-chu 0bed25745b HV: Using one assignment in for loop statement
To follow Misra-C standard, only one assignment is allowed in both
initialization and update statement.
Noncompliant example:
for (i = 0, a = arry[0]; ...; i++, a = arry[i]){...}

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-09 13:10:34 +08:00
Yang, Yu-chu dd695f3cfa HV: Moving operators out from conditions
To follow the Misra-c standard, any operators should be done outside
the conditions. Removed the prefix, postfix and bitwise shift from
conditions.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-09 13:10:34 +08:00
Qi Yadong 3e2d1fba6b HV: trusty: Get rpmb_key from OSloader when init trusty
Extend struct trusty_boot_param to hold rpmb_key.
Copy rpmb_key from trusty_boot_param when initialize
trusty.

Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Wang Kai <kai.z.wang@intel.com>
2018-07-09 13:09:18 +08:00
Qi Yadong 260e84769d HV: trusty: use copy_from_gpa() instead of gpa2hpa()
Use gpa2hpa() has potential hpa contiguous issue for structure
trusty_boot_param.
Fix it by using copy_from_gpa() instead.

Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Reviewed-by: Zhu Bing <bing.zhu@intel.com>
Reviewed-by: Wang Kai <kai.z.wang@intel.com>
2018-07-09 13:09:18 +08:00
Xiangyang Wu 474e9af216 HV:CPU: Add 'U/UL' for unsigned const value
According to MISRA C:2012, suffix 'U/UL' shall be for
unsigned const value, the member of enum variable should
not be used to compare with integer variable.

Add 'U/UL' for unsigned const value in the CPU module;
Use Macro insteading of enum feature_word since the member
of feature_word is used to compare with integer variable;
Use hex number insteading of Macro in the assembly code.

V1-->V2:

        Update the suffix of some constant value as 'UL'
        according to its'storage variable;
        Split MACRO updates used in the assembly code
	in other patch.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-09 10:27:21 +08:00
Kaige Fu 21f0bddff8 HV: instr_emul: Rename emul_cnx to emul_ctxt
ctxt is a more general abbreviation of context.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-09 09:27:42 +08:00
Junjie Mao 211fcd4f40 HV: ioapic: number of interrupt pins should be max_rte + 1
The 23:16 bits in the IOAPIC version register is the highest entry in the I/O
redirection table, which is 1 smaller than the number of interrupt input
pins. But currently we use these bits directly as the number of pins.

This patch abstracts the pin count calculation code and adds 1 to the max rte
entry number to get the right pin count.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-09 09:26:41 +08:00
Xiangyang Wu 0f6ff87835 HV:CPU:Constant values replace with CPU MACRO
MISRA C requires that all unsigned constants should have
the suffix 'U/UL'(e.g. 0xffU), but the assembler may not
accept such C-style constants.

To work this around, all  unsigned constants must be
explicitly spells out in assembly with a comment tracking
the original expression from which the magic number is
calculated.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
2018-07-09 09:24:56 +08:00
Shiqing Gao 54bd55d636 hv: fix 'Recursion in procedure calls found'
Here is how the recursion might happen:

                     when there is something wrong
                     |
sbuf_put -> memcpy_s -> pr_err -> do_logmsg
   |                                 |
   -----------------------------------

Replace 'pr_err' with 'ASSERT' in 'memcpy_s' to break this kind of
recursion.

Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2018-07-09 09:24:15 +08:00
Mingqiang Chi deb44402e3 hv:fix "missing for discarded return value" for memcpy_s and strcpy_s
It will print error information inside memcpy_s if
the parameteter is invalid, the caller can not check
the return value for memcpy_s/strcpy_s/strncpy_s
code like this:
int a(void) {
return 0;
}
int b(void){
a();
}
fix as follow:
int a(void) {
return 0;
}
int b(void){
(void)a();
}

Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
2018-07-09 09:22:37 +08:00
Yang, Yu-chu 8779e4fd20 HV: uart16550: check the denominator before use
To prevent the value is devided by zero, checks the denominator
before the calculation. Adding the if statement to check before use.
If the baud_rate is equal to zero, using default baud_rate.

Signed-off-by: Yang, Yu-chu <yu-chu.yang@intel.com>
2018-07-06 11:33:36 +08:00
Xiangyang Wu b5b83ca0d8 HV:CPU:Clean up variable type for CPU module
There are some implicit type conversion in the CPU module,
this voilates MISRA C:2012 required rules.

We walk through each functions of CPU module, update
some variable type and the return value type of
the function, and add 'U/UL' for related const value.

V1-->V2:
        Rebase the branch, resolve some conflict.
V2-->V3:
        Update commit info for V2.
V3-->V4:
        Few updates for fixing error instroduced during
	resolving conflict.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
2018-07-06 11:32:50 +08:00
Junjie Mao db62c23d81 HV: vioapic: use uint8_t for pins
IOAPIC pins always fit in 8-bit and we already use uint8_t for virt_pins. This
patch converts pins in vioapic to uint8_t.

This is based on Arindam's previous patch ("was: hv: Cleanup and optimise
vioapic.c"), with SOS boot failure resolved, format string updated, complex
arithmetic expression with implicit type conversion decoupled. Also make some
local variables representing interrupt vectors uint32_t.

Signed-off-by: Arindam Roy <arindam.roy@intel.com>
Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 15:54:52 +08:00
Geoffroy Van Cutsem f7d78289ee Documentation: add pictures to Trusty documentation
A couple of diagram were written using text characters. This
commit changes that to use pictures instead.

Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
2018-07-05 00:06:51 -07:00
Geoffroy Van Cutsem d24179550e Documentation: move Trusty documentation to doc/
Move the existing Trusty document to the doc/ folder (where
it belongs) and convert the text to ReST.

The Documentation/ folder under hypervisor/ is removed as all
documents should be put under doc/.

All technical information has been preserved or was already
available in other documents.

Signed-off-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
2018-07-05 00:06:51 -07:00
Mingqiang Chi 666430a3d4 hv:fix "missing for discarded return value" for memset
No need to check the return value for memset
code like this:
int a(void) {
	return 0;
}
int b(void){
	a();
}
fix as follow:
int a(void) {
	return 0;
}
int b(void){
	(void)a();
}

Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 14:14:48 +08:00
Junjie Mao 91ef6ed59b HV: instr_emul: enforce unsignedness when possible
Most of variables used when decoding instructions are unsigned bit-fields. This
patch adds the 'U' or 'UL' suffix to constants in unsigned context and changes
the type of arguments/local variables when necessary.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao 62865d0397 HV: instr_emul: make SEG_DESC_* macros having type bool
The SEG_DESC_* macros are mostly used as branch conditions though they evaluates
to signed int. This patch simplies their definitions and drop the unnecessary
casts accordingly.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao ecce1e6ae4 HV: instr_emul: make integer conversion explicit
This patch makes necessary integer narrowing and/or signedness conversion
explicit.

While some narrowing are expected behavior, the correctness of the others relies
on the specifications of some interfaces (e.g. the higher 32-bit of what
exec_vmread() returns is all 0s if the given field is 32-bit). Add a stub
for now to avoid missing them.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao 158242d507 HV: instr_emul: enforce unsignedness of VIE_OP constants
Translate the VIE_OP_* enum constants (which belong to an anonymous enum type)
to macros to ensure that they are always unsigned.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao 479dacc219 HV: instr_emul: convert cpl to uint8_t
CPL is represented by a plain int but calculated from shifts and bit-wise
operations. Convert it the uint8_t for consistency.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao ab156c9633 HV: instr_emul: convert return value of get_vmcs_field to unsigned
get_vmcs_field() returns a VMCS field offset which is normally unsigned, but it
also returns negatives (-1 here) on invalid arguments. Following the convention
we use for vectors, pins, etc., use a special unsigned value to indicate such
errors.

v1 -> v2:

    * Use a special value (VMX_INVALID_VMCS_FIELD) instead of a seperate output
      parameter to indicate errors.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao d457874cf5 treewide: instr_emul: rename vm_reg to cpu_reg
The current register names in instr_emul are misleading since the register names
are not VM-specific. Rename VM_REG(_GUEST) to CPU_REG in both the hypervisor and
device model.

v1 -> v2:

    * Introduced.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao 845437646f HV: instr_emul: keep using enum vm_reg_name for registers
The vm_reg_name is a good example of a collection of discrete values. This patch
replaces signed integers with this type whenever applicable to avoid dependence
on the underlying value of such enumeration constants.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao edc793145a HV: instr_emul: convert sizes to uint8_t
Op_sizes are mostly from vie->opsize which is a 4-bit field in struct vie. Use
uint8_t instead of int to represent them.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Junjie Mao bbb6920a75 HV: instr_emul: replace u_long with uint64_t
Rflags is always 64-bit. Spell out the width explicitly and drop the unused
typedef'ed u_long type.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-05 13:14:07 +08:00
Yonghua Huang 3f9b0d53f5 HV: rename functions in cpu.c
- rename 'cpu_set_logical_id()' to 'set_current_cpu_id()'
- rename 'cpu_find_logical_id()' to 'get_cpu_id_from_lapic_id()'
- some clean up in cpu.c & trampolines.s

Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
2018-07-05 12:45:44 +08:00
Huihuang Shi 96372ed09c HV:misc:add suffix U to the numeric constant
Add suffix U to the numeric constant

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 11:29:46 +08:00
Huihuang Shi d3ad411c91 HV:lib:add suffix U to the numeric constant
Add suffix U to the numeric constant

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 11:29:46 +08:00
Huihuang Shi d3bd514e58 HV:common:add suffix U to the numeric constant
Add suffix U to the numeric constant

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 11:29:46 +08:00
Huihuang Shi 98c49c71b7 HV:guest:add suffix U to the numeric constant
Add suffix U to the numeric constant

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-05 11:29:46 +08:00