hw/i386/vmport: Add support for CMD_GET_VCPU_INFO

Command currently returns that it is unimplemented by setting
the reserved-bit in it's return value.

Following patches will return various useful vCPU information
to guest.

Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Message-Id: <20200312165431.82118-13-liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Liran Alon 2020-03-12 18:54:27 +02:00 committed by Paolo Bonzini
parent aaacf1c15a
commit acacd3550b
2 changed files with 15 additions and 0 deletions

View File

@ -54,6 +54,13 @@
#define VMPORT_COMPAT_CMDS_V2 \
(1 << VMPORT_COMPAT_CMDS_V2_BIT)
/* vCPU features reported by CMD_GET_VCPU_INFO */
#define VCPU_INFO_SLC64_BIT 0
#define VCPU_INFO_SYNC_VTSCS_BIT 1
#define VCPU_INFO_HV_REPLAY_OK_BIT 2
#define VCPU_INFO_LEGACY_X2APIC_BIT 3
#define VCPU_INFO_RESERVED_BIT 31
#define VMPORT(obj) OBJECT_CHECK(VMPortState, (obj), TYPE_VMPORT)
typedef struct VMPortState {
@ -167,6 +174,11 @@ static uint32_t vmport_cmd_ram_size(void *opaque, uint32_t addr)
return ram_size;
}
static uint32_t vmport_cmd_get_vcpu_info(void *opaque, uint32_t addr)
{
return 1 << VCPU_INFO_RESERVED_BIT;
}
static const MemoryRegionOps vmport_ops = {
.read = vmport_ioport_read,
.write = vmport_ioport_write,
@ -192,6 +204,8 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL);
if (s->compat_flags & VMPORT_COMPAT_CMDS_V2) {
vmport_register(VMPORT_CMD_GETBIOSUUID, vmport_cmd_get_bios_uuid, NULL);
vmport_register(VMPORT_CMD_GET_VCPU_INFO, vmport_cmd_get_vcpu_info,
NULL);
}
}

View File

@ -13,6 +13,7 @@ typedef enum {
VMPORT_CMD_VMMOUSE_DATA = 39,
VMPORT_CMD_VMMOUSE_STATUS = 40,
VMPORT_CMD_VMMOUSE_COMMAND = 41,
VMPORT_CMD_GET_VCPU_INFO = 68,
VMPORT_ENTRIES
} VMPortCommand;