Commit Graph

234 Commits

Author SHA1 Message Date
Qi Yadong 03f5cbdd7a HV: Parse SeedList HOB
Retrieve dseed from SeedList HOB(Hand-Off-Block).
SBL passes SeedList HOB to ACRN by MBI modules.

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>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-07 09:55:29 +08:00
Minggui Cao 66d283d0c4 add lock for vcpu state access
keep the global variables access exclusive in vcpu pause & resume.

Signed-]off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-05 17:28:10 +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
Li, Fei1 84f4cf3c1d hv: vmx: add vpid support
Enable VMX vpid ctrl and assign an unique vpid to each vcpu
so that VMX transitions are not required to invalidate any
linear mappings or combined mappings.

SDM Vol 3 - 28.3.3.3
If EPT is in use, the logical processor associates all mappings
it creates with the value of bits 51:12 of current EPTP.
If a VMM uses different EPTP values for different guests, it may
use the same VPID for those guests. Doing so cannot result in one
guest using translations that pertain to the other.

In our UOS, the trusty world and normal world are using different
EPTP. So we can use the same VPID for it.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-04 17:11:15 +08:00
Li, Fei1 c34f72a0bc hv: monir modify for flush ept tlb to compatible with vpid
We need know which tlb to flush: ept or vpid.
1. error handle for invept.
  it's the same with invvpid error handle.
  change its name to compatible with vpid.
2. the macro name for flush ept tlb request.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-04 17:11:15 +08:00
Binbin Wu b55b808bfc hv: copy cr0/4 value when init secure world
Copy CR0 / CR4 value from normal world context to secure world context
when init secure world.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Acked-by: Wang Kai <kai.z.wang@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu 417cff5049 hv: check vmx unrestricted guest capability
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu bed6f0b99e hv: set start mode of vcpu
In current code, sos/uos bsp can only start from 64bit mode.

For sbl platform:
This patch start sos bsp from protected mode by default.
CONFIG_START_VM0_BSP_64BIT is defined to allow start sos bsp
from 64bit mode. If a config CONFIG_START_VM0_BSP_64BIT
defined in config file, then sos bsp will start from 64bit mode.
This patch start uos bsp from real mode, which needs the integration
of virtual bootloader (vsbl).

For uefi platform:
This patch sets sos bsp vcpu mode according to the uefi context.
This patch starts uos bsp from protected mode, because vsbl is not ready
to publish for uefi platform yet. After vsbl is ready, can change to
start uos bsp from real mode.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu 0d309e2dee hv: add support to start a vcpu from protected mode
In current implementation, a vcpu can only start from real mode
or 64bit mode.
This patch adds support to start a vcpu from protected mode.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu 881eaa6104 hv: create gdt for guest to start from protected mode
In current implementation, on sbl platform, vm0 bsp
starts from 64bit mode. And hv need to prepare init
page table for it.

In this patch series, on sbl platform, vm0 bsp starts
from non-paging protected mode.
This patch prepares an init gdt for vm0 bsp on sbl
platform.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu 9e7179c950 hv: support gva2gpa in different paging modes
Translate gva2gpa in different paging modes.
Change the definition of gva2gpa.
- return value for error status
- Add a parameter for error code when paging fault.
Change the definition of vm_gva2gpa.
- return value for error status
- Add a parameter for error code when paing fault.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu dd14d8e1b0 hv: add API to get vcpu paging mode
Use # of paging level to identify paging mode

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Eddie Dong <eddie.dong@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu fb09f9daca hv: update vcpu mode when vmexit
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
Binbin Wu 5c7f120d96 hv: refine guest control register handling
In current implemenation, cr0/cr4 host mask value are set
according to the value from fixed0/fixed1 values of cr0/cr4.
In fact, host mask can be set to the bits, which need to be trapped.

This patch, add code to support exiting long mode in CR0 write handling.
Add some check when modify CR0/CR4.

- CR0_PG, CR0_PE, CR0_WP, CR0_NE are trapped for CR0.
  PG, PE are trapped to track vcpu mode switch.
  WP is trapped for info of protection when paing walk.
  NE is always on bit.
- CR4_PSE, CR4_PAE, CR4_VMXE are trapped for CR4.
  PSE, PAE are trapped to track paging mode.
  VMXE is always on bit.
- Reserved bits and always off bits are not allow to be set by guest.
  If guest try to set these bits when vmexit, a #GP will be injected.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
2018-06-01 19:14:13 +08:00
huihuang shi 14b2e1d395 fix "ISO C99 does not support '_Static_assert'"
_Static_assert is supported in C11 standard.
Please see N1570(C11 mannual) 6.4.1.
replace _Static_assert with ASSERT.

Signed-off-by: huihuang shi <huihuang.shi@intel.com>
2018-06-01 16:39:28 +08:00
David B. Kinder f4122d99c5 license: Replace license text with SPDX tag
Replace the BSD-3-Clause boiler plate license text with an SPDX tag.

Fixes: #189

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2018-06-01 10:43:06 +08:00
Yonghua Huang 2b69329ec7 HV: fix potential NULL function pointer reference
- 'dispatch' will be null and be referenced if
   'basic_exit_reason < ARRAY_SIZE(dispatch_table)'
   if false.

Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>
2018-06-01 10:24:26 +08:00
Kaige Fu 7491b83394 HV: Remove dead code wrapped by #if 0
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-31 15:27:10 +08:00
Kaige Fu 37e664db0a HV: Replace misused pr_fatal with pr_acrnlog
The following massages is not fatal error but should be print to serial and
sbuf at the same time. pr_fatal is not a good choice. pr_acrnlog is designed
to deal with the situation. So replace the following misused pr_fatal with
pr_acrnlog.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-31 15:27:10 +08:00
Li, Fei1 da662fae62 hv: vmcall_vmexit_handler should always return success
Hypervisor shouldn't deal with errno return by hypercall.
The SOS should do this. Here just return the errno to SOS.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-31 11:27:22 +08:00
Jason Chen CJ 0cf5142895 remove unused vm_state_info
vm_state_info in struct vm_arch is not used, remove it

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Xu, Anthony <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-05-31 11:27:01 +08:00
huihuang.shi ba1b034e1e fix MISRA-C 243S
Included file not protected with #define, this
feature is required.

Signed-off-by: huihuang.shi <huihuang.shi@intel.com>
2018-05-31 11:26:13 +08:00
Binbin Wu ebea5e5ae4 hv: remove unused API init_cpu
Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:55:57 +08:00
Binbin Wu fb1248e5d9 hv: remove cr3 handling from cr_access_vmexit_handler
Guest CR3 read/write operations are not trapped.
Remove CR3 handling in cr_access_vmexit_handler.
Also remove unused API vmx_read_cr3.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:55:57 +08:00
Binbin Wu 2df7b96a23 hv: make control register handling functions to public
Move from vmexit.c to vmx.c
Declare the functions in vmx.h
Rename the functions' name with prefix vmx_.

Signed-off-by: Binbin Wu <binbin.wu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:55:57 +08:00
Kaige Fu 80a79fed39 HV: Replace printf with pr_acrnlog after logmsg init
There are some massages which is not fatal error but should to print
to serial and sbuf(hvlog) at the same time. pr_fatal is for fatal error
massages and it is not good choice for the situation above.

Introduce a new API pr_acrnlog to deal with the situation. And replace the
following printf with pr_acrnlog for massages should be print to sbuf and
serial. Then developers can get those massages on serial and BTM(Boot Time
Measurement) can use acrnlog to get those massages from sbuf.

BTM refers to Boot Time Measurement which will read acrnlog file to get
timestamps of steps we want.

Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:49:09 +08:00
Li, Fei1 e0c329e4e9 hv: create vm failed don't panic system
Just return error number to the caller.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:01:56 +08:00
Li, Fei1 6c8fc0a4df hv: remove vm_description_array
When we create an UOS, we didn't indicate the vmid.
Thus we can't get the vm description for the vm
description array.

Instead we use a temporary vm description to save data to
fill the vm structure when crate an UOS. It's uselesss once
UOS has created. So we don't need to maintain vm description
array here for UOS.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:01:56 +08:00
Li, Fei1 3fb7b75eda hv: execute vmxon instruction fail don't panic system
Don't panic system when execute vmxon instruction failed.
And let's follow that only print error info when error return
from library function.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:01:56 +08:00
Li, Fei1 fe4484f5a9 hv: move panic out of hv_main
We cleanup ASSERT. This serial try to only panic when create
SOS failed.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 14:01:56 +08:00
Junjie Mao 2266e133fb lapic: continuous LVT registers as an array
Pointer arithmetic is currently used to calculate the address of a specific
Local Vector Table (LVT) register (except LVT_CMCI) in lapic, since the
registers are continuously placed with fixed padding in between. However each of
these registers are declared as a single uint32_t in struct lapic, resulting
pointer arithmetic on a non-array pointer which violates MISRA C requirements.

This patch refactors struct lapic by converting the LVT registers fields (again
except LVT_CMCI) to an array named lvt. The LVT indices are reordered to reflect
the order of the LVT registers on hardware, and reused to index this lvt array.

The code before and after the changes is semantically equivalent.

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-30 13:52:11 +08:00
Jason Chen CJ 9a604ed00e correct idt_vectoring_info handling
filter out HW exception and NMI from idt_vectoring_info first:
- queue HW exception through vcpu_queue_exception
- make NMI request through vcpu_make_request
this is a complement patch for previous commit "exception: refine exception
injection path", here take care un-injected vectors for types HW exception &
NMI, the previous commit take care SW exception & external interrupt.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ 7718338008 exception: add vcpu_inject_pf support
add page fault exception injection support

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ 75a03bf0f7 exception: use func vcpu_queue_exception to inject exception
use func vcpu_queue_exception for vcpu_inject_gp and exception_vmexit_handler.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ ebc7ee2e18 exception: refine exception injection path
- inject exception based on exception_info
- inject exception according to priority
- for previous not injected vector - idt_vectoring_info, here only take
  care about types for SW exception & external interrupt, the HW exception
  & NMI will be taken care by vmexit_handler in the following commit "correct
  idt_vectoring_info handling"

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ 277830aba8 exception: add vcpu_queue_exception function
add func vcpu_queue_exception to queue exception based on SDM Vol3 Table 6-5,
which may cause #DF or triple fault

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ 44af2690f6 add triple fault request support
if vcpu meet triple fault, the vcpu should exit.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Tian, Kevin <kevin.tian@intel.com>
2018-05-30 13:51:49 +08:00
Jason Chen CJ 4607177383 replace pending_intr with pending_req
the pending_intr is not only serving for interrupt but also for different
request including TLB & TMR updating, so change the function & variants
name accordingly.

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-05-30 13:51:49 +08:00
Junjie Mao 16152fad79 HV: debug: stop using ## __VA_ARGS__
It is an extension of GCC CPP to:

* allow omitting a variable macro argument entirely, and
* use ## __VA_ARGS__ to remove the the comma before ## __VA_ARGS__ when
  __VA_ARGS__ is empty.

The only use of ## _VA_ARGS__ is to define the pr_xxx() macros, with the first
argument being the format string and the rest the to-be-formatted arguments. The
format string is explicitly spelled out because another macro pr_fmt() is used
to add to the format string a prefix which is customizable by defining what
pr_fmt() expands to.

For C99 compliance, this patch changes the pr_xxx() macros in the following
pattern.

    - #define pr_fatal(fmt, ...)				\
    -     do_logmsg(LOG_FATAL, pr_fmt(fmt), ## __VA_ARGS__);	\
    + #define pr_fatal(...)					\
    +     do_logmsg(LOG_FATAL, pr_prefix __VA_ARGS__);		\

Reference:

* https://gcc.gnu.org/onlinedocs/gcc/Variadic-Macros.html#Variadic-Macros

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-29 14:13:44 +08:00
Junjie Mao 004d2e2696 HV: treewide: give names to unnamed structs/unions
According to the syntax defined in C99, each struct/union field must have an
identifier. This patch adds names to the previously unnamed fields for C99
compatibility.

Here is a summary of the names (marked with a pair of *stars*) added.

struct trusty_mem:

    union {
        struct {
            struct key_info key_info;
            struct trusty_startup_param startup_param;
        } *data*;
        uint8_t page[CPU_PAGE_SIZE];
    } first_page;

struct ptdev_remapping_info:

    union {
        struct ptdev_msi_info msi;
        struct ptdev_intx_info intx;
    } *ptdev_intr_info*;

union code_segment_descriptor:

    uint64_t value;
    struct {
        union {
            ...
        } low32;
        union {
            ...
        } high32;
    } *fields*;

    similar changes are made to the following structures.
    * union data_segment_descriptor,
    * union system_segment_descriptor,
    * union tss_64_descriptor, and
    * union idt_64_descriptor

struct trace_entry:

    union {
        struct {
            uint32_t a, b, c, d;
        } *fields_32*;
        struct {
            uint8_t a1, a2, a3, a4;
            uint8_t b1, b2, b3, b4;
            uint8_t c1, c2, c3, c4;
            uint8_t d1, d2, d3, d4;
        } *fields_8*;
        struct {
            uint64_t e;
            uint64_t f;
        } *fields_64*;
        char str[16];
    } *payload*;

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-29 14:12:15 +08:00
Junjie Mao ef3cb5ba1c treewide: remove unnecessary unnamed structs/unions
According to the syntax defined in C99, each struct/union field must have an
identifier. This patch removes unnamed struct/union fields that can be easily
expressed in a C99-compatible way.

Here is a summary of structs/unions removed.

struct vhm_request:

    union {
        uint32_t type;                  uint32_t type;
        int32_t reserved0[16];    =>    int32_t reserved0[15];
    };

struct vhm_request_buffer:

    struct vhm_request_buffer {
        union {                         union vhm_request_buffer {
            struct vhm_request ...; =>        struct vhm_request ...;
            int8_t reserved[4096];            int8_t reserved[4096];
        }                               }
    }

Signed-off-by: Junjie Mao <junjie.mao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
2018-05-29 14:12:15 +08:00
huihuang.shi b9660eb9d6 refomatted GET_DATA_SIZE macro
The macro GET_DATA_SIZE's code style is not correct,
it is merged by accident,the Pull Request
<fix "obsolete use of designated initializer without '='">
have two commid id,the second commit changed the ucode.c
by mistake.

Now fixed.
Signed-off-by: huihuang.shi <huihuang.shi@intel.com>
2018-05-29 14:11:29 +08:00
huihuang.shi 784eb6f189 fix "warning:range expression in switch statements are not standard"
Range expression in switch statement is in gcc extension standard(gcc
manual 6.28),not in c99 standard.
GCC manual 6.28 reference link below:
(https://gcc.gnu.org/onlinedocs/gcc-8.1.0/gcc/Case-Ranges.html#Case-Ranges)

Signed-off-by: huihuang.shi <huihuang.shi@intel.com>
2018-05-25 17:18:34 +08:00
huihuang.shi 2f3953a99a fix "warning:ISO C forbids 'return' with expression,in function returning void"
returning void function must return void.

Signed-off-by: huihuang.shi <huihuang.shi@intel.com>
2018-05-25 15:35:50 +08:00
Zide Chen 8f16faab04 HV: further cleanup of header inclusions
According to the comments in hypervisor:
 " This file includes config header file "bsp_cfg.h" and other
	hypervisor used header files.
	It should be included in all the source files."

this patch includes all common header files in hypervisor.h
then removes other redundant inclusions

Signed-off-by: Zide Chen <zide.chen@intel.com>
2018-05-25 10:45:56 +08:00
Zide Chen d594878e31 HV: cleanup for header inclusions.
used https://gitlab.com/esr/deheader to detect and remove unnecessary
header file inclusions

Signed-off-by: Zide Chen <zide.chen@intel.com>
2018-05-25 10:45:56 +08:00
Jason Chen CJ 1b34870824 guest: quick fix for copy_from/to_vm
h_ptr need update from second page walk

Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
2018-05-25 09:43:08 +08:00
Li, Fei1 34445008c2 hv: add non-lock bitmap operation
Add __bitmap_set/clear,
__bitmap_test_and_set/clear.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-05-25 09:42:03 +08:00
Li, Fei1 efb60e2726 hv: refine bit scan API
Rename
bsrl to bsr
bsrq to bsr64
bitmap_ffs to fls64
get_first_zero_bit to ffz64

Remove
ffsl

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
2018-05-25 09:42:03 +08:00
Li, Fei1 57d0bf3b7c hv: refine bitops
Rename bitmap_clr to bitmap_clear
Rename bitmap_isset to bitmap_test
Remove bitmap_setof

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
2018-05-25 09:42:03 +08:00