github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-06-26 23:36:51 +00:00
Code Issues Projects Releases Wiki Activity

hv: bug fix on synchronizing with APs

Browse Source 
Using eax will truncate the high 32bit part of 64bit virtual address.
And the type of sync is unsigned long, so using rbx instead of ebx.

Signed-off-by: Zheng, Gen <gen.zheng@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
This commit is contained in:
Zheng, Gen 2018-04-18 14:10:19 +08:00 committed by lijinxia
parent 1c0b08eda2
commit ccc0b01fec
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/cpu.c
View File

@ -732,11 +732,11 @@ static void print_hv_banner(void)
static void pcpu_sync_sleep(unsigned long *sync, int mask_bit)
{
int wake_sync = (1 << mask_bit);
uint64_t wake_sync = (1UL << mask_bit);
if (get_monitor_cap()) {
/* Wait for the event to be set using monitor/mwait */
asm volatile ("1: cmpl %%ebx,(%%eax)\n"
asm volatile ("1: cmpq %%rbx,(%%rax)\n"
" je 2f\n"
" monitor\n"
" mwait\n"
@ -748,7 +748,7 @@ static void pcpu_sync_sleep(unsigned long *sync, int mask_bit)
: "cc");
} else {
/* Wait for the event to be set using pause */
asm volatile ("1: cmpl %%ebx,(%%eax)\n"
asm volatile ("1: cmpq %%rbx,(%%rax)\n"
" je 2f\n"
" pause\n"
" jmp 1b\n"