mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-29 12:14:13 +00:00
b74358d08e
In the hypervisor, some strings are assigned to non const object, this violates MISRA C:2012. Update the type of the object as const type since it always points to string. Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
294 lines
8.4 KiB
C
294 lines
8.4 KiB
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <hypervisor.h>
|
|
|
|
/*
|
|
* readable exception descriptors.
|
|
*/
|
|
static const char *const excp_names[] = {
|
|
[0] = "Divide Error",
|
|
[1] = "RESERVED",
|
|
[2] = "NMI",
|
|
[3] = "Breakpoint",
|
|
[4] = "Overflow",
|
|
[5] = "BOUND range exceeded",
|
|
[6] = "Invalid Opcode",
|
|
[7] = "Device Not Available",
|
|
[8] = "Double Fault",
|
|
[9] = "Coprocessor Segment Overrun",
|
|
[10] = "Invalid TSS",
|
|
[11] = "Segment Not Present",
|
|
[12] = "Stack Segment Fault",
|
|
[13] = "General Protection",
|
|
[14] = "Page Fault",
|
|
[15] = "Intel Reserved",
|
|
[16] = "x87 FPU Floating Point Error",
|
|
[17] = "Alignment Check",
|
|
[18] = "Machine Check",
|
|
[19] = "SIMD Floating Point Exception",
|
|
[20] = "Virtualization Exception",
|
|
[21] = "Intel Reserved",
|
|
[22] = "Intel Reserved",
|
|
[23] = "Intel Reserved",
|
|
[24] = "Intel Reserved",
|
|
[25] = "Intel Reserved",
|
|
[26] = "Intel Reserved",
|
|
[27] = "Intel Reserved",
|
|
[28] = "Intel Reserved",
|
|
[29] = "Intel Reserved",
|
|
[30] = "Intel Reserved",
|
|
[31] = "Intel Reserved"
|
|
};
|
|
|
|
/* Global variable for save registers on exception */
|
|
struct intr_excp_ctx *crash_ctx;
|
|
|
|
static void dump_guest_reg(struct vcpu *vcpu)
|
|
{
|
|
struct run_context *cur_context =
|
|
&vcpu->arch_vcpu.contexts[vcpu->arch_vcpu.cur_context];
|
|
|
|
printf("\n\n================================================");
|
|
printf("================================\n\n");
|
|
printf("Guest Registers:\r\n");
|
|
printf("= VM ID %d ==== vCPU ID %hu === pCPU ID %d ===="
|
|
"world %d =============\r\n",
|
|
vcpu->vm->attr.id, vcpu->vcpu_id, vcpu->pcpu_id,
|
|
vcpu->arch_vcpu.cur_context);
|
|
printf("= RIP=0x%016llx RSP=0x%016llx "
|
|
"RFLAGS=0x%016llx\r\n",
|
|
cur_context->rip,
|
|
cur_context->rsp,
|
|
cur_context->rflags);
|
|
printf("= CR0=0x%016llx CR2=0x%016llx "
|
|
" CR3=0x%016llx\r\n",
|
|
cur_context->cr0,
|
|
cur_context->cr2,
|
|
cur_context->cr3);
|
|
printf("= RAX=0x%016llx RBX=0x%016llx "
|
|
"RCX=0x%016llx\r\n",
|
|
cur_context->guest_cpu_regs.regs.rax,
|
|
cur_context->guest_cpu_regs.regs.rbx,
|
|
cur_context->guest_cpu_regs.regs.rcx);
|
|
printf("= RDX=0x%016llx RDI=0x%016llx "
|
|
"RSI=0x%016llx\r\n",
|
|
cur_context->guest_cpu_regs.regs.rdx,
|
|
cur_context->guest_cpu_regs.regs.rdi,
|
|
cur_context->guest_cpu_regs.regs.rsi);
|
|
printf("= RBP=0x%016llx R8=0x%016llx "
|
|
"R9=0x%016llx\r\n",
|
|
cur_context->guest_cpu_regs.regs.rbp,
|
|
cur_context->guest_cpu_regs.regs.r8,
|
|
cur_context->guest_cpu_regs.regs.r9);
|
|
printf("= R10=0x%016llx R11=0x%016llx "
|
|
"R12=0x%016llx\r\n",
|
|
cur_context->guest_cpu_regs.regs.r10,
|
|
cur_context->guest_cpu_regs.regs.r11,
|
|
cur_context->guest_cpu_regs.regs.r12);
|
|
printf("= R13=0x%016llx R14=0x%016llx "
|
|
"R15=0x%016llx\r\n",
|
|
cur_context->guest_cpu_regs.regs.r13,
|
|
cur_context->guest_cpu_regs.regs.r14,
|
|
cur_context->guest_cpu_regs.regs.r15);
|
|
printf("\r\n");
|
|
}
|
|
|
|
static void dump_guest_stack(struct vcpu *vcpu)
|
|
{
|
|
uint32_t i;
|
|
uint64_t tmp[DUMP_STACK_SIZE];
|
|
struct run_context *cur_context =
|
|
&vcpu->arch_vcpu.contexts[vcpu->arch_vcpu.cur_context];
|
|
uint32_t err_code = 0;
|
|
|
|
if (copy_from_gva(vcpu, tmp, cur_context->rsp, DUMP_STACK_SIZE,
|
|
&err_code) < 0) {
|
|
printf("\r\nUnabled to Copy Guest Stack:\r\n");
|
|
return;
|
|
}
|
|
|
|
printf("\r\nGuest Stack:\r\n");
|
|
printf("Dump stack for vcpu %hu, from gva 0x%016llx\r\n",
|
|
vcpu->vcpu_id, cur_context->rsp);
|
|
for (i = 0U; i < DUMP_STACK_SIZE/32U; i++) {
|
|
printf("guest_rsp(0x%llx): 0x%016llx 0x%016llx "
|
|
"0x%016llx 0x%016llx\r\n",
|
|
(cur_context->rsp+i*32),
|
|
tmp[i*4], tmp[i*4+1],
|
|
tmp[i*4+2], tmp[i*4+3]);
|
|
}
|
|
printf("\r\n");
|
|
}
|
|
|
|
static void show_guest_call_trace(struct vcpu *vcpu)
|
|
{
|
|
uint64_t bp;
|
|
uint64_t count = 0UL;
|
|
struct run_context *cur_context =
|
|
&vcpu->arch_vcpu.contexts[vcpu->arch_vcpu.cur_context];
|
|
int err;
|
|
uint32_t err_code;
|
|
|
|
bp = cur_context->guest_cpu_regs.regs.rbp;
|
|
printf("Guest Call Trace: **************************************\r\n");
|
|
printf("Maybe the call trace is not accurate, pls check stack!!\r\n");
|
|
/* if enable compiler option(no-omit-frame-pointer) the stack layout
|
|
* should be like this when call a function for x86_64
|
|
*
|
|
* | |
|
|
* rbp+8 | return address |
|
|
* rbp | rbp | push rbp
|
|
* | | mov rsp rbp
|
|
*
|
|
* rsp | |
|
|
*
|
|
* try to print out call trace,here can not check if the rbp is valid
|
|
* if the address is invalid, it will cause hv page fault
|
|
* then halt system */
|
|
while ((count++ < CALL_TRACE_HIERARCHY_MAX) && (bp != 0)) {
|
|
uint64_t parent_bp = 0UL;
|
|
|
|
err_code = 0U;
|
|
err = copy_from_gva(vcpu, &parent_bp, bp, sizeof(parent_bp),
|
|
&err_code);
|
|
if (err < 0) {
|
|
printf("\r\nUnabled to get Guest parent BP\r\n");
|
|
return;
|
|
}
|
|
|
|
printf("BP_GVA(0x%016llx) RIP=0x%016llx\r\n", bp, parent_bp);
|
|
/* Get previous rbp*/
|
|
bp = parent_bp;
|
|
}
|
|
printf("\r\n");
|
|
}
|
|
|
|
static void dump_guest_context(uint16_t pcpu_id)
|
|
{
|
|
struct vcpu *vcpu;
|
|
|
|
vcpu = per_cpu(vcpu, pcpu_id);
|
|
if (vcpu != NULL) {
|
|
dump_guest_reg(vcpu);
|
|
dump_guest_stack(vcpu);
|
|
show_guest_call_trace(vcpu);
|
|
}
|
|
}
|
|
|
|
static void show_host_call_trace(uint64_t rsp, uint64_t rbp, uint16_t pcpu_id)
|
|
{
|
|
uint32_t i = 0U;
|
|
uint32_t cb_hierarchy = 0U;
|
|
uint64_t *sp = (uint64_t *)rsp;
|
|
|
|
printf("\r\nHost Stack: CPU_ID = %hu\r\n", pcpu_id);
|
|
for (i = 0U; i < DUMP_STACK_SIZE/32U; i++) {
|
|
printf("addr(0x%llx) 0x%016llx 0x%016llx 0x%016llx "
|
|
"0x%016llx\r\n", (rsp+i*32U), sp[i*4U], sp[i*4U+1U],
|
|
sp[i*4U+2U], sp[i*4U+3U]);
|
|
}
|
|
printf("\r\n");
|
|
|
|
printf("Host Call Trace:\r\n");
|
|
if (rsp >
|
|
(uint64_t)&per_cpu(stack, pcpu_id)[CONFIG_STACK_SIZE - 1]
|
|
|| rsp < (uint64_t)&per_cpu(stack, pcpu_id)[0]) {
|
|
return;
|
|
}
|
|
|
|
/* if enable compiler option(no-omit-frame-pointer) the stack layout
|
|
* should be like this when call a function for x86_64
|
|
*
|
|
* | |
|
|
* rbp+8 | return address |
|
|
* rbp | rbp | push rbp
|
|
* | | mov rsp rbp
|
|
*
|
|
* rsp | |
|
|
*
|
|
*
|
|
* if the address is invalid, it will cause hv page fault
|
|
* then halt system */
|
|
while ((rbp <=
|
|
(uint64_t)&per_cpu(stack, pcpu_id)[CONFIG_STACK_SIZE - 1])
|
|
&& (rbp >= (uint64_t)&per_cpu(stack, pcpu_id)[0])
|
|
&& (cb_hierarchy++ < CALL_TRACE_HIERARCHY_MAX)) {
|
|
printf("----> 0x%016llx\r\n",
|
|
*(uint64_t *)(rbp + sizeof(uint64_t)));
|
|
if (*(uint64_t *)(rbp + 2*sizeof(uint64_t))
|
|
== SP_BOTTOM_MAGIC) {
|
|
break;
|
|
}
|
|
rbp = *(uint64_t *)rbp;
|
|
}
|
|
printf("\r\n");
|
|
}
|
|
|
|
void __assert(uint32_t line, const char *file, const char *txt)
|
|
{
|
|
uint16_t pcpu_id = get_cpu_id();
|
|
uint64_t rsp = cpu_rsp_get();
|
|
uint64_t rbp = cpu_rbp_get();
|
|
|
|
pr_fatal("Assertion failed in file %s,line %u : %s",
|
|
file, line, txt);
|
|
show_host_call_trace(rsp, rbp, pcpu_id);
|
|
dump_guest_context(pcpu_id);
|
|
do {
|
|
asm volatile ("pause" ::: "memory");
|
|
} while (1);
|
|
}
|
|
|
|
void dump_intr_excp_frame(struct intr_excp_ctx *ctx)
|
|
{
|
|
const char *name = "Not defined";
|
|
|
|
printf("\n\n================================================");
|
|
printf("================================\n=\n");
|
|
if (ctx->vector < 0x20UL) {
|
|
name = excp_names[ctx->vector];
|
|
printf("= Unhandled exception: %d (%s)\n", ctx->vector, name);
|
|
}
|
|
|
|
/* Dump host register*/
|
|
printf("\r\nHost Registers:\r\n");
|
|
printf("= Vector=0x%016llX RIP=0x%016llX\n",
|
|
ctx->vector, ctx->rip);
|
|
printf("= RAX=0x%016llX RBX=0x%016llX RCX=0x%016llX\n",
|
|
ctx->rax, ctx->rbx, ctx->rcx);
|
|
printf("= RDX=0x%016llX RDI=0x%016llX RSI=0x%016llX\n",
|
|
ctx->rdx, ctx->rdi, ctx->rsi);
|
|
printf("= RSP=0x%016llX RBP=0x%016llX RBX=0x%016llX\n",
|
|
ctx->rsp, ctx->rbp, ctx->rbx);
|
|
printf("= R8=0x%016llX R9=0x%016llX R10=0x%016llX\n",
|
|
ctx->r8, ctx->r9, ctx->r10);
|
|
printf("= R11=0x%016llX R12=0x%016llX R13=0x%016llX\n",
|
|
ctx->r11, ctx->r12, ctx->r13);
|
|
printf("= RFLAGS=0x%016llX R14=0x%016llX R15=0x%016llX\n",
|
|
ctx->rflags, ctx->r14, ctx->r15);
|
|
printf("= ERRCODE=0x%016llX CS=0x%016llX SS=0x%016llX\n",
|
|
ctx->error_code, ctx->cs, ctx->ss);
|
|
printf("\r\n");
|
|
|
|
printf("=====================================================");
|
|
printf("===========================\n");
|
|
}
|
|
|
|
void dump_exception(struct intr_excp_ctx *ctx, uint16_t pcpu_id)
|
|
{
|
|
/* Dump host context */
|
|
dump_intr_excp_frame(ctx);
|
|
/* Show host stack */
|
|
show_host_call_trace(ctx->rsp, ctx->rbp, pcpu_id);
|
|
/* Dump guest context */
|
|
dump_guest_context(pcpu_id);
|
|
|
|
/* Save registers*/
|
|
crash_ctx = ctx;
|
|
CACHE_FLUSH_INVALIDATE_ALL();
|
|
}
|