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hv:Replace dynamic allocation with static memory for shell

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Pre-allocate 2 pages of static memory for shell log buffer.

Tracked-On: #861
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Mingqiang Chi
2018-09-05 19:04:08 +08:00
committed by wenlingz
parent c045442163
commit 3718177687
1 changed files with 14 additions and 59 deletions
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73
hypervisor/debug/shell.c
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@@ -11,6 +11,8 @@
#define MAX_STR_SIZE 256U
#define SHELL_PROMPT_STR "ACRN:\\>"
char shell_log_buf[CPU_PAGE_SIZE*2];
/* Input Line Other - Switch to the "other" input line (there are only two
* input lines total).
*/
@@ -624,11 +626,6 @@ static int shell_vcpu_dumpreg(int argc, char **argv)
struct vcpu *vcpu;
uint64_t mask = 0UL;
struct vcpu_dump dump;
char *temp_str = alloc_page();
if (temp_str == NULL) {
return -ENOMEM;
}
/* User input invalidation */
if (argc != 3) {
@@ -662,7 +659,7 @@ static int shell_vcpu_dumpreg(int argc, char **argv)
}
dump.vcpu = vcpu;
dump.str = temp_str;
dump.str = shell_log_buf;
dump.str_max = CPU_PAGE_SIZE;
if (vcpu->pcpu_id == get_cpu_id())
vcpu_dumpreg(&dump);
@@ -670,12 +667,10 @@ static int shell_vcpu_dumpreg(int argc, char **argv)
bitmap_set_nolock(vcpu->pcpu_id, &mask);
smp_call_function(mask, vcpu_dumpreg, &dump);
}
shell_puts(temp_str);
shell_puts(shell_log_buf);
status = 0;
out:
free(temp_str);
return status;
}
@@ -761,93 +756,53 @@ static int shell_to_sos_console(__unused int argc, __unused char **argv)
static int shell_show_cpu_int(__unused int argc, __unused char **argv)
{
char *temp_str = alloc_page();
if (temp_str == NULL) {
return -ENOMEM;
}
get_cpu_interrupt_info(temp_str, CPU_PAGE_SIZE);
shell_puts(temp_str);
free(temp_str);
get_cpu_interrupt_info(shell_log_buf, CPU_PAGE_SIZE);
shell_puts(shell_log_buf);
return 0;
}
static int shell_show_ptdev_info(__unused int argc, __unused char **argv)
{
char *temp_str = alloc_page();
if (temp_str == NULL) {
return -ENOMEM;
}
get_ptdev_info(temp_str, CPU_PAGE_SIZE);
shell_puts(temp_str);
free(temp_str);
get_ptdev_info(shell_log_buf, CPU_PAGE_SIZE);
shell_puts(shell_log_buf);
return 0;
}
static int shell_show_vioapic_info(int argc, char **argv)
{
char *temp_str = alloc_page();
uint16_t vmid;
int32_t ret;
if (temp_str == NULL) {
return -ENOMEM;
}
/* User input invalidation */
if (argc != 2) {
free(temp_str);
return -EINVAL;
}
ret = atoi(argv[1]);
if (ret >= 0) {
vmid = (uint16_t) ret;
get_vioapic_info(temp_str, CPU_PAGE_SIZE, vmid);
shell_puts(temp_str);
free(temp_str);
get_vioapic_info(shell_log_buf, CPU_PAGE_SIZE, vmid);
shell_puts(shell_log_buf);
return 0;
}
free(temp_str);
return -EINVAL;
}
static int shell_show_ioapic_info(__unused int argc, __unused char **argv)
{
int err = 0;
char *temp_str = alloc_pages(2U);
if (temp_str == NULL) {
return -ENOMEM;
}
err = get_ioapic_info(temp_str, 2 * CPU_PAGE_SIZE);
shell_puts(temp_str);
free(temp_str);
err = get_ioapic_info(shell_log_buf, 2 * CPU_PAGE_SIZE);
shell_puts(shell_log_buf);
return err;
}
static int shell_show_vmexit_profile(__unused int argc, __unused char **argv)
{
char *temp_str = alloc_pages(2U);
if (temp_str == NULL) {
return -ENOMEM;
}
get_vmexit_profile(temp_str, 2*CPU_PAGE_SIZE);
shell_puts(temp_str);
free(temp_str);
get_vmexit_profile(shell_log_buf, 2*CPU_PAGE_SIZE);
shell_puts(shell_log_buf);
return 0;
}