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HV: Fix boot failure of partition mode

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When drdh_info_array[0].ignore = false with partition mode enabled,the following
assert error will be triggered when trying to boot vm:

Assertion failed in file arch/x86/vtd.c: fatal error

The root cause is that root_table_addr reading from CPU3(vm2's bsp) is NULL.

This patch move the init_iommu which initialize root_table_addr before starting
secondary cores and flush the cache at the end if the function to avoid getting
NULL pointer from secondary cores.

Tracked-On: #1160
Signed-off-by: Kaige Fu <kaige.fu@intel.com>
Reviewed-by: Binin Wu <binbin.wu@intel.com>
This commit is contained in:
Kaige Fu 2018-10-25 15:05:13 +00:00 committed by wenlingz
parent 70e13bf8f4
commit 05834927cc
2 changed files with 4 additions and 2 deletions
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4
hypervisor/arch/x86/cpu.c
View File

@ -482,6 +482,8 @@ static void bsp_boot_post(void)
/* Initialize interrupts */ /* Initialize interrupts */
interrupt_init(BOOT_CPU_ID); interrupt_init(BOOT_CPU_ID);
init_iommu();
timer_init(); timer_init();
setup_notification(); setup_notification();
setup_posted_intr_notification(); setup_posted_intr_notification();
@ -495,8 +497,6 @@ static void bsp_boot_post(void)
ASSERT(get_cpu_id() == BOOT_CPU_ID, ""); ASSERT(get_cpu_id() == BOOT_CPU_ID, "");
init_iommu();
console_setup_timer(); console_setup_timer();
exec_vmxon_instr(BOOT_CPU_ID); exec_vmxon_instr(BOOT_CPU_ID);

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

@ -1286,6 +1286,8 @@ void init_iommu(void)
register_hrhd_units(); register_hrhd_units();
enable_iommu(); enable_iommu();
cache_flush_invalidate_all();
} }
void init_iommu_vm0_domain(struct vm *vm0) void init_iommu_vm0_domain(struct vm *vm0)