From acacd3550ba1b2379d5a14a00f7dad4820a015b4 Mon Sep 17 00:00:00 2001 From: Liran Alon Date: Thu, 12 Mar 2020 18:54:27 +0200 Subject: 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 Signed-off-by: Liran Alon Message-Id: <20200312165431.82118-13-liran.alon@oracle.com> Signed-off-by: Paolo Bonzini --- hw/i386/vmport.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'hw/i386') diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c index 8006ff91d4..942a0e94e3 100644 --- a/hw/i386/vmport.c +++ b/hw/i386/vmport.c @@ -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); } } -- cgit v1.2.3