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hv: initial host reset implementation

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- add the GUEST_FLAG_HIGHEST_SEVERITY flag to indicate that the guest has
  privilege to reboot the host system.

- this flag is statically assigned to guest(s) in vm_configurations.c in
  different scenarios.

- implement reset_host() function to reset the host. First try the ACPI
  reset register if available, then try the 0xcf9 PIO.

Tracked-On: #3145
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Zide Chen <zide.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Zide Chen
2019-05-07 10:56:00 -07:00
committed by ACRN System Integration
parent 321e4f1300
commit 5a23f7b664
6 changed files with 67 additions and 3 deletions
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3
hypervisor/scenarios/industry/vm_configurations.c
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@@ -53,6 +53,9 @@ struct acrn_vm_config vm_configs[CONFIG_MAX_VM_NUM] = {
.uuid = {0x49U, 0x5aU, 0xe2U, 0xe5U, 0x26U, 0x03U, 0x4dU, 0x64U, \
0xafU, 0x76U, 0xd4U, 0xbcU, 0x5aU, 0x8eU, 0xc0U, 0xe5U},
/* 495ae2e5-2603-4d64-af76-d4bc5a8ec0e5 */
/* The hard RTVM must be launched as VM2 */
.guest_flags = GUEST_FLAG_HIGHEST_SEVERITY,
.vuart[0] = {
.type = VUART_LEGACY_PIO,
.addr.port_base = INVALID_COM_BASE,