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[PATCH v3 12/16] hw/i386/vmport: Add support for CMD_GET_VCPU_INFO
From: |
Liran Alon |
Subject: |
[PATCH v3 12/16] hw/i386/vmport: Add support for CMD_GET_VCPU_INFO |
Date: |
Thu, 12 Mar 2020 18:54:27 +0200 |
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 <address@hidden>
Signed-off-by: Liran Alon <address@hidden>
---
hw/i386/vmport.c | 14 ++++++++++++++
include/hw/i386/vmport.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c
index 7e57eda4b526..2ce78aaf7b4c 100644
--- a/hw/i386/vmport.c
+++ b/hw/i386/vmport.c
@@ -55,6 +55,13 @@
#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 {
@@ -199,6 +206,11 @@ static uint32_t vmport_cmd_time_full(void *opaque,
uint32_t addr)
return VMPORT_MAGIC;
}
+static uint32_t vmport_cmd_get_vcpu_info(void *opaque, uint32_t addr)
+{
+ return 1 << VCPU_INFO_RESERVED_BIT;
+}
+
/* vmmouse helpers */
void vmmouse_get_data(uint32_t *data)
{
@@ -247,6 +259,8 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
vmport_register(VMPORT_CMD_GETBIOSUUID, vmport_cmd_get_bios_uuid,
NULL);
vmport_register(VMPORT_CMD_GETTIME, vmport_cmd_time, NULL);
vmport_register(VMPORT_CMD_GETTIMEFULL, vmport_cmd_time_full, NULL);
+ vmport_register(VMPORT_CMD_GET_VCPU_INFO, vmport_cmd_get_vcpu_info,
+ NULL);
}
}
diff --git a/include/hw/i386/vmport.h b/include/hw/i386/vmport.h
index 5d19963ed417..34cc050b1ffa 100644
--- a/include/hw/i386/vmport.h
+++ b/include/hw/i386/vmport.h
@@ -13,6 +13,7 @@ typedef enum {
VMPORT_CMD_VMMOUSE_STATUS = 40,
VMPORT_CMD_VMMOUSE_COMMAND = 41,
VMPORT_CMD_GETTIMEFULL = 46,
+ VMPORT_CMD_GET_VCPU_INFO = 68,
VMPORT_ENTRIES
} VMPortCommand;
--
2.20.1
[PATCH v3 09/16] hw/i386/vmport: Add support for CMD_GETBIOSUUID, Liran Alon, 2020/03/12
[PATCH v3 11/16] hw/i386/vmport: Add support for CMD_GETTIMEFULL, Liran Alon, 2020/03/12
[PATCH v3 12/16] hw/i386/vmport: Add support for CMD_GET_VCPU_INFO,
Liran Alon <=
[PATCH v3 13/16] hw/i386/vmport: Allow x2apic without IR, Liran Alon, 2020/03/12
[PATCH v3 14/16] i386/cpu: Store LAPIC bus frequency in CPU structure, Liran Alon, 2020/03/12
[PATCH v3 16/16] hw/i386/vmport: Assert vmport initialized before registering commands, Liran Alon, 2020/03/12
[PATCH v3 15/16] hw/i386/vmport: Add support for CMD_GETHZ, Liran Alon, 2020/03/12