github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2026-01-04 23:24:56 +00:00
Code Issues Projects Releases Wiki Activity

HV: Config Splitlock Detection to be disable

Browse Source 
#AC should be normally enabled for slpitlock detection, however,
community developers may want to run ACRN on buggy system.
In this case, CONFIG_ENFORCE_TURNOFF_AC can be used to turn off the
 #AC, to let the guest run without #AC.

Tracked-On: #4765
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
yuhong.tao@intel.com
2020-04-29 21:02:41 +08:00
committed by wenlingz
parent bf5d187539
commit b0ae9cfa2b
2 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
hypervisor/arch/x86/cpu.c
View File

@@ -100,6 +100,7 @@ uint64_t get_active_pcpu_bitmap(void)
static void enable_ac_for_splitlock(void)
{
#ifdef CONFIG_ENFORCE_TURNOFF_AC
uint64_t test_ctl;
if (has_core_cap(1U << 5U)) {
@@ -107,6 +108,7 @@ static void enable_ac_for_splitlock(void)
test_ctl |= (1U << 29U);
msr_write(MSR_TEST_CTL, test_ctl);
}
#endif /*CONFIG_ENFORCE_TURNOFF_AC*/
}
void init_pcpu_pre(bool is_bsp)