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hv:remove show_guest_call_trace 

now this api assumes the guest OS is 64 bits,
this patch remove this api and will replace it
with dumping guest memory.

Tracked-On: #4144
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Mingqiang Chi 2019-11-13 15:45:38 +08:00 committed by wenlingz
parent 24fa14bcf6
commit 4c8dde1b9c
1 changed files with 0 additions and 43 deletions
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43
hypervisor/debug/dump.c
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@ -131,48 +131,6 @@ static void dump_guest_stack(struct acrn_vcpu *vcpu)
pr_acrnlog("\r\n");
}
static void show_guest_call_trace(struct acrn_vcpu *vcpu)
{
uint64_t bp;
uint64_t count = 0UL;
int32_t err;
uint32_t err_code;
bp = vcpu_get_gpreg(vcpu, CPU_REG_RBP);
pr_acrnlog("Guest Call Trace: **************************************\r\n");
pr_acrnlog("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 != 0UL)) {
uint64_t parent_bp = 0UL, fault_addr;
err_code = 0U;
err = copy_from_gva(vcpu, &parent_bp, bp, sizeof(parent_bp),
&err_code, &fault_addr);
if (err < 0) {
pr_acrnlog("\r\nUnabled to get Guest parent BP\r\n");
return;
}
pr_acrnlog("BP_GVA(0x%016lx) RIP=0x%016lx\r\n", bp, parent_bp);
/* Get previous rbp*/
bp = parent_bp;
count++;
}
pr_acrnlog("\r\n");
}
static void dump_guest_context(uint16_t pcpu_id)
{
struct acrn_vcpu *vcpu = get_running_vcpu(pcpu_id);
@ -180,7 +138,6 @@ static void dump_guest_context(uint16_t pcpu_id)
if (vcpu != NULL) {
dump_guest_reg(vcpu);
dump_guest_stack(vcpu);
show_guest_call_trace(vcpu);
}
}