Commit Graph

43 Commits

Author SHA1 Message Date
Jason Chen CJ
286731d9d1 hv:move instr_emul_ctxt instance to struct vcpu
move instr_emul_ctxt instance from struct per_cpu_region
to struct vcpu, and rename it from g_inst_ctxt to inst_ctxt

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2019-03-13 14:04:20 +08:00
Mingqiang Chi
75f6cab554 hv:cleanup header file for per_cpu.h
remove hypervisor.h from per_cpu.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-02-21 10:38:30 +08:00
Mingqiang Chi
c093638bf6 hv:merge two header files to one with the same name
merge include/arch/x86/irq.h and include/common/irq.h
-->   include/arch/x86/irq.h

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-02-21 10:38:30 +08:00
Minggui Cao
723ff1f4ee HV: modularization improve UEFI macro control code
1. in UEFI bsp code, not need UEFI macro; it is controlled in makefile.
2. in vm/acpi/interrupt code, unify the API name for SBL & UEFI.
3. remove unnecessary header including and unused code.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2019-01-30 16:11:39 +08:00
Jason Chen CJ
21092e6f6d schedule: use per_cpu idle object
To support full context switch scheduling, each physical
CPU must have its own idle sched_obj.

Tracked-On: #2394
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2019-01-23 16:21:17 +08:00
Minggui Cao
173b534b05 HV: modularization cleanup instr_emul header file
separate the private macro/structure/functions, which are just used
in instr_emul.c;

and move instr_emul.h to public include path.

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2019-01-22 10:50:30 +08:00
Li, Fei1
6f0edfc38d hv: coding style: use the defined data type __packed
1) Use __attribute__((packed)) instead of #pragma pack(1)
2) Use the defined data type __packed instead of __attribute__((packed))

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2019-01-02 09:35:00 +08:00
Mingqiang Chi
5c6fe01c87 hv:Change pcpu_active_bitmap to static
-- Change pcpu_active_bitmap to static, only used in
   cpu.c
-- add get_pcpu_active_bitmap()

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-28 23:26:31 +08:00
Mingqiang Chi
682824de6d hv:Change phys_cpu_num to static
-- change phys_cpu_num to static
-- add get_pcpu_nums() and is_pcpu_active() APIs
-- replace phys_cpu_num with get_pcpu_nums() except cpu.c

Tracked-On: #1842
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-12-28 23:26:31 +08:00
Jason Chen CJ
5968da4635 move security related funcs into security.c
there are still some security related funcs in cpu_caps.c & cpu.c,
move them out into security.c.

Changes to be committed:
	modified:   Makefile
	modified:   arch/x86/cpu.c
	modified:   arch/x86/cpu_caps.c
	modified:   arch/x86/guest/vcpu.c
	new file:   arch/x86/security.c
	modified:   arch/x86/trusty.c
	modified:   arch/x86/vmx_asm.S
	modified:   include/arch/x86/cpu.h
	modified:   include/arch/x86/cpu_caps.h
	modified:   include/arch/x86/per_cpu.h
	new file:   include/arch/x86/security.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-12-19 09:07:14 +08:00
Jason Chen CJ
36863a0b54 modulization: vmx on/off should not use vcpu param
vmx.c should only take care host vmx operations, which should not
contain vcpu reference, so refine vmx on/off APIs, move out use
of vcpu by adding one per cpu vmcs_run pointer.

as now each pcpu only run on one vcpu, so just keep running vmcs
in per cpu vmcs_run pointer is enough.

Changes to be committed:
	modified:   arch/x86/cpu.c
	modified:   arch/x86/init.c
	modified:   arch/x86/pm.c
	modified:   arch/x86/vmcs.c
	modified:   arch/x86/vmx.c
	modified:   include/arch/x86/per_cpu.h
	modified:   include/arch/x86/vmx.h

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-18 10:00:56 +08:00
Shiqing Gao
2f15d3569c hv: replace CPU_PAGE_SIZE with PAGE_SIZE
replace CPU_PAGE_SIZE with PAGE_SIZE
These two MACROs are duplicated and PAGE_SIZE is a more reasonable name.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-12-03 15:14:57 +08:00
Kaige Fu
e555f75b8d debug: Remove early logbuf support
This patch remove early logbuf support which is used to hold
log massges before shared buf setup by SOS.

Tracked-On: #1801
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
2018-11-27 09:32:27 +08:00
Shiqing Gao
9c025190a9 hv: hv_main: clean up HV_DEBUG usage
- Remove the usage of HV_DEBUG in hv_main.c
The usage of HV_DEBUG in hv_main.c is for the shell command 'vmexit'.
Since vmexit info has been captured by acrntrace, there is no need to
keep this duplicated feature in shell command.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-11-16 14:47:24 +08:00
Mingqiang Chi
2975f9fa65 hv:Replace dynamic memory with static for sbuf
--Config LOG_BUF_SIZE 256KB for per cpu
--Replace 'calloc' with static array for sbuf
--Rename 'alloc_earlylog_sbuf' to 'init_earlylog_sbuf'
--Remove deadcode sbuf_free

v2-->v3:
 -- put the buffer into per_cpu data structure
v1-->v2:
 -- add 'is_early_logbuf' in percpu data structure used for
    check if need to do 'do_copy_earlylog'

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Yan, Like <like.yan@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-11-01 11:21:49 +08:00
Mingqiang Chi
dff441a0d5 hv:Replace dynamic memory with static for pcpu
--remove 'calloc' for pcpu, change it to static array
--rename 'init_percpu_data_area' to 'init_percpu_lapic_id'
Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-10-29 10:14:25 +08:00
Chinthapally, Manisha
8ba333d275 HV: Added Initial support for SEP/SOCWATCH profiling
This patch adds support to sep/socwatch profiling
     Adds 2 new files include/arch/x86/profiling.h and arch/x86/profiling.c
     which contains most of the implementation for profiling,most of the functions
     in profiling.c have dummy implementation and will be implemented in next patches

     a. cpu.c, Initial profiling setup is done as part of bsp_boot_post
  and cpu_secondary_post flow
     b. vmcall.c, New ioctl is added for performing profiling related
  operations in vmcall_vmexit_handler
	ioctl - HC_PROFILING_OPS
        function - hcall_profiling_ops()
     c. common/hypercall.c, hcall_profiling_ops() implementation.
     d. hv_main.c, In vcpu_thread calling profiling related functions
  to save vm context
     e. acrn_hv_defs.h, list all the profiling command types

Tracked-On: projectacrn#1409
Acked-by: Eddie Dong <eddie.dong@intel.com>
Signed-off-by: Chinthapally, Manisha <manisha.chinthapally@intel.com>
2018-10-26 13:39:07 +08:00
Sainath Grandhi
09193c3913 hv: x2apic support for acrn
All the platforms supported by ACRN supports x2APIC. So enabled
x2APIC for ACRN hv. Removed any code that is needed for xAPIC mode
of operation.

Tracked-On: #1455
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed by:  Yonghua Huang <yonghua.huang@intel.com>
2018-10-25 13:41:29 +08:00
Jason Chen CJ
6485666a93 Revert "hv: x2apic support for acrn"
This reverts commit 348e2ba168.
2018-10-19 17:24:56 +08:00
Huihuang Shi
4620b935de fix "use of single line comments(s) //"
Replace "//" with '/*','*/' couples.

V1->V2:
    Correct comment "Tracked-On" format

V2->V3:
    Remove "/* ==...===*/" comment

Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-10-17 16:16:31 +08:00
Sainath Grandhi
348e2ba168 hv: x2apic support for acrn
All the platforms supported by ACRN supports x2APIC. So enabled
x2APIC for ACRN hv. Removed any code that is needed for xAPIC mode
of operation.

Tracked-On: #1455
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed by:  Yonghua Huang <yonghua.huang@intel.com>
2018-10-17 08:46:42 +08:00
junjunshan1
7dd35cb72e hv: Fix identifier reuse
Now we have name reuse definitions in hypervisor as following:
"enum cpu_state cpu_state" in per_cpu.h,
"struct shell_cmd *shell_cmd" in shell_priv.h.
MISRAC requires that tag names shall not be reused anywhere
with in a program.So these definitions violate MISRAC rules
"identifier resue".This patch is used to fix it.

1. modify the definitions to "enum pcpu_boot_state boot_state"
and "struct shell_cmd *cmds".
2. modifty the relevant usage.

v1->v2
    update commit message to be more explicit.

v2->v3
    update the enum definition.

Tracked-On: #861
Signed-off-by: Junjun Shan <junjun.shan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-10-15 09:04:34 +08:00
Mingqiang Chi
65930809ee hv: Replace dynamic allocation with static memory for vmxon_region
Remove vmxon_region_pa from structure per_cpu_region,
and define vmxon_region inside per_cpu_region.

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-09-07 10:23:04 +08:00
Shiqing Gao
4360235edf hv: treewide: fix 'Macro parameter not in brackets'
Add the brackets for Macro parameter to avoid the unintentional
mistakes.

A simple example that may cause mistakes:
        #define minus(x) -x
When the following call is made,
        z = minus(a-b)
it becomes:
        z = -a-b;
where "-a - b" is equivalent to "(-a) - b" rather than "- (a - b)", as
expected.

v2 -> v3:
 * convert DMAR_WAIT_COMPLETION to inline function
 * remove the macro PIC_PIN_FOREACH and implement the well-formed
   for loop in each case
 * replace __CPP_STRING with STRINGIFY and remove the unused CPP_STRING

v1 -> v2:
 * Remove some changes to function like macro since MISRA-C requires to
   use inline functions if it is possible.
   These MACRO brackets violations will be fixed together when fixing
   other issues related to function like macro.

Tracked-On: #861
Signed-off-by: Shiqing Gao <shiqing.gao@intel.com>
2018-09-07 10:22:00 +08:00
Zhi Jin
6367650a70 hv: debug: add the hypervisor NPK log
The npk_log is a log destination for the hypervisor, similar to the
console_log and the mem_log. It can be enabled/disabled/configured
by the SOS kernel via the hypercall HC_SETUP_HV_NPK_LOG.
The configuration includes:
1. Set the MMIO base address of the reserved NPK master.
2. Set the log level of the hypervisor NPK log.
After that, the npk_log can be enabled to write the hypervisor logs to
the MMIO address of the reserved NPK master with a simple header.

Signed-off-by: Zhi Jin <zhi.jin@intel.com>
Signed-off-by: Liu, Xiaojing <xiaojing.liu@intel.com>
Reviewed-by: CHEN Gang <gang.c.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
2018-08-23 11:09:25 +08:00
Jason Chen CJ
4b03c97a5e add smp_call_function support
take use of VCPU_NOTIFY vector, add smp_call_function support.
added a per_cpu field smp_call_info, and make each smp_call_function
is not re-entered, and the caller CPU is returned when all the target
CPUs complete the call.

v4:
- remove global lock
- take use of wait_sync_change function to do the sequence sync

v3:
- remove per_cpu lock in smp_call_info
- use a global lock to ensure smp_call_function sequence
- use pcpu_sync_sleep to wait IPI complete

v2:
- after new smp function come, if old one exist, changed from overwirte
  with the new one to ignore the new one.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-08-15 12:05:18 +08:00
Kaige Fu
b5a233da9f HV: Enclose debug specific code with #ifdef HV_DEBUG
Thare some debug specific code which don't run on release version, such as vmexit_time,
vmexit_cnt, sbuf related codes, etc...

This patch encloses the codes with #ifdef HV_DEBUG.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-08-15 11:17:29 +08:00
Kaige Fu
f03ae8d09c HV: instr_emul: Rearrange logic of instr_emul*
Originally, there is cross-references between instr_emul.h and instr_emul_wrapper.h.
User must include both of them when calling instruction emulation functions. This
will raise up some confusion and inconvenience.

So we rearrange the logic of instruction emulation code as following:

  - External API -- defined in instr_emul.h
     * decode_instruction(struct vcpu *vcpu)
     * emulate_instruction(struct vcpu *vcpu)

  - Make all other functions as static in instr_emul.c

  - Remove instr_emul_wrapper.c/h

No functional change.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
2018-08-07 12:09:22 +08:00
Yan, Like
c663267b03 hv: timer: request timer irq once only
Since global vector table is being used on all pcpus, it's not necessary to request timer irq
at each cpu init. With this change, per_cpu timer nodes are removed, and only BSP registers
and unregisters timer irq.

Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-08-06 16:06:22 +08:00
Xiangyang Wu
6e77a8d5f1 HV:treewide:rename enum vpic_wire_mode, stack_canary, segment_override, pde_index
For data structure types "enum vpic_wire_mode, struct stack_canary",
its name is identical with variable name in the same scope.
This MISRA C  violation is detected by static analysis tool.
For variables "segment_override, pde_index", its name is identical
with function name. This MISRA C  violation is detected.
Naming convention rule:Variable name can be shortened from
its data structure type name.

The following udpates are made:
enum vpic_wire_mode vpic_wire_mode-->enum vpic_wire_mode wire_mode
struct stack_canary stack_canary-->struct stack_canary stk_canary
uint8_t segment_override:1 --> uint8_t seg_override:1
uint32_t pde_index--> uint32_t pde_idx

V1-->V2:
	Remove update "enum cpu_state cpu_state-->enum cpu_state state"
	and "enum irqstate irqstate-->enum irq_ops_mode ops_mode", other
	patch will cover it.
V2-->V3:
	Update "uint32_t pde_index--> uint32_t pde_idx".

Signed-off-by: Xiangyang Wu <xiangyang.wu@linux.intel.com>
2018-07-31 11:20:21 +08:00
Xiangyang Wu
8205c9a482 HV:INSTR_EMUL:Rename struct vie, vie_op, and emul_ctxt
For data struct type struct vie, emul_ctxt, its name
is identical with variable name in the same scope.
This MISRA C violation is detected by static analysis
tool.
According to naming convention rule: If the data structure
type is used by only one module and its name meaning is
simplistic, its name needs prefix shorten module name.
Follow the same rule, data structure name "vie_op" needs
to be renamed;

The following updates are made in this patch:
struct vie-->struct instr_emul_vie
struct vie_op-->struct instr_emul_vie_op
struct emul_ctxt-->struct instr_emul_ctxt

Signed-off-by: Xiangyang Wu <xiangyang.wu@linux.intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-30 10:16:36 +08:00
Madeeha Javed
a257f2fadc HV: Fixes index out of bounds for addressing irq.
NR_MAX_IRQS is defined as 272 and IRQ_INVALID as 273 which implies
that 272 is a valid irq number. In this case, an illegal access can
occur at run time when irq_desc_array[] or irq_count[] is accessed
with index 272. This fix stops the illegal access by renaming
NR_MAX_IRQS to NR_IRQS and then places proper conditions for range
checks. If the index is >= NR_IRQS, then index is invalid otherwise
its considered valid for accessing irq arrays. IRQ_INVALID definition
is also changed to 0xffffffffU to indicate maximum unsigned value.

Signed-off-by: Madeeha Javed <madeeha_javed@mentor.com>
2018-07-19 11:06:42 +08:00
Junjie Mao
a91952d3d4 HV: per_cpu: drop dependency on version.h and add license header
version.h is included but not used by per_cpu.h. This results in a forceful
rebuild of almost all files because per_cpu.h (and thus version.h) is depended
on by many files, and version.h is created every time a build is triggered.

This patch breaks this dependency. No further changes needed as sources using
version.h all include that file explicitly.

Also add the missing license header BTW.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
2018-07-17 13:54:03 +08:00
Minggui Cao
2f2d108b1e HV: handle integral issue report by MISRA-C
The main focus on: constant suffix U/UL; parameters cast like
uint32 to a uint16 variable; unify some APIs interface,
consist with the callers.

also modify some places to unify code style

Signed-off-by: Minggui Cao <minggui.cao@intel.com>
2018-07-16 16:24:29 +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
Huihuang Shi
b068959b78 HV:change the cpu state to enum type
enum cpu state is better than cpu state macro.

V1->V2:
  move enum cpu_state under #ifndef ASSEMBLER MACRO to avoid
assembler compiler scan.

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-07-02 11:22:48 +08:00
Yan, Like
f74675ce21 hv: pirq: add a header for common data struct and APIs
- add a commont head file include/common/irq.h, to include the common data
  structure and APIs;
- move the common data struct and APIs from arch/x86/irq.h to the common header.

Signed-off-by: Yan, Like <like.yan@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-29 00:50:01 +08:00
Xiangyang Wu
c585172492 Rename phy_cpu_num as phys_cpu_num
phys_cpu_num is more popular than phy_cpu_num, update them
through command.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-22 16:12:52 +08:00
Xiangyang Wu
3027bfab10 HV: treewide: enforce unsignedness of pcpu_id
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>
2018-06-21 16:59:21 +08:00
Junjie Mao
c849bff850 HV: config: adapt to the generated config.h
This patch drops "#include <bsp_cfg.h>" and include the generated config.h in
CFLAGS for the configuration data.

Also make sure that all configuration data have the 'CONFIG_' prefix.

v4 -> v5:

    * No changes.

v3 -> v4:

    * Add '-include config.h' to hypervisor/bsp/uefi/efi/Makefile.
    * Update comments mentioning bsp_cfg.h.

v2 -> v3:

    * Include config.h on the command line instead of in any header or source to
      avoid including config.h multiple times.
    * Add config.h as an additional dependency for source compilation.

v1 -> v2:

    * No changes.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
2018-06-08 17:21:13 +08:00
Yin Fegnwei
08139c34f7 hv: add vmx_off and update exec_vmxon_instr
To handle cpu down/up dynamically, arcn needs to support vmx off/on
dynamically. Following changes is introduced:
  vmx_off will be used when down AP. It does:
    - vmclear the mapped vcpu
    - off vmx.

  exec_vmxon_instr is updated to handle start and up AP both. It does
    - if vmx was on on AP, load the vmxon_region saved. Otherwise,
      allocate vmxon_region.
    - if there is mapped vcpu, vmptrld mapped vcpu.

Signed-off-by: Zheng Gen <gen.zheng@intel.com>
Signed-off-by: Yin Fegnwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
2018-06-07 15:36:46 +08:00
Yin Fegnwei
fbeafd500a hv: add API to get the vcpu mapped to specific pcpu.
Per performance consideration, we don't flush vcpu context when doing
vcpu swithing (because it's only swithing between vcpu and idle).

But when enter S3, we need to call vmclear against all vcpus attached
to APs. We need to know which vcpu is attached with which pcpu.

This patch introduced API to get vcpu mapped to specific pcpu.

Signed-off-by: Yin Fegnwei <fengwei.yin@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>
2018-06-07 15:36:46 +08:00
Huihuang Shi
e591315a65 HV:treewide:C99-friendly per_cpu implementation change the per_cpu method
The current implementation of per_cpu relies on several non-c99 features,
and in additional involves arbitrary pointer arithmetic which is not MIS-
RA C friendly.

This patch introduces struct per_cpu_region which holds all the per_cpu
variables. Allocation of per_cpu data regions and access to per_cpu vari-
ables are greatly simplified, at the cost of making all per_cpu varaibl-
es accessible in files.

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
2018-06-05 17:09:00 +08:00