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[PATCH v3 11/16] hw/i386/vmport: Add support for CMD_GETTIMEFULL
From: |
Liran Alon |
Subject: |
[PATCH v3 11/16] hw/i386/vmport: Add support for CMD_GETTIMEFULL |
Date: |
Thu, 12 Mar 2020 18:54:26 +0200 |
Similar to CMD_GETTIME but lacks the 136-year overflow issue,
by returning full 64-bit of host uSeconds.
Reviewed-by: Nikita Leshenko <address@hidden>
Signed-off-by: Liran Alon <address@hidden>
---
hw/i386/vmport.c | 17 +++++++++++++++++
include/hw/i386/vmport.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c
index c5b659c59343..7e57eda4b526 100644
--- a/hw/i386/vmport.c
+++ b/hw/i386/vmport.c
@@ -183,6 +183,22 @@ static uint32_t vmport_cmd_time(void *opaque, uint32_t
addr)
return (uint32_t)tv.tv_sec;
}
+static uint32_t vmport_cmd_time_full(void *opaque, uint32_t addr)
+{
+ X86CPU *cpu = X86_CPU(current_cpu);
+ qemu_timeval tv;
+
+ if (qemu_gettimeofday(&tv) < 0) {
+ return UINT32_MAX;
+ }
+
+ cpu->env.regs[R_ESI] = (uint32_t)((uint64_t)tv.tv_sec >> 32);
+ cpu->env.regs[R_EDX] = (uint32_t)tv.tv_sec;
+ cpu->env.regs[R_EBX] = (uint32_t)tv.tv_usec;
+ cpu->env.regs[R_ECX] = port_state->max_time_lag_us;
+ return VMPORT_MAGIC;
+}
+
/* vmmouse helpers */
void vmmouse_get_data(uint32_t *data)
{
@@ -230,6 +246,7 @@ static void vmport_realizefn(DeviceState *dev, Error **errp)
if (s->compat_flags & VMPORT_COMPAT_CMDS_V2) {
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);
}
}
diff --git a/include/hw/i386/vmport.h b/include/hw/i386/vmport.h
index 50416c8c8f3e..5d19963ed417 100644
--- a/include/hw/i386/vmport.h
+++ b/include/hw/i386/vmport.h
@@ -12,6 +12,7 @@ typedef enum {
VMPORT_CMD_VMMOUSE_DATA = 39,
VMPORT_CMD_VMMOUSE_STATUS = 40,
VMPORT_CMD_VMMOUSE_COMMAND = 41,
+ VMPORT_CMD_GETTIMEFULL = 46,
VMPORT_ENTRIES
} VMPortCommand;
--
2.20.1
- Re: [PATCH v3 07/16] hw/i386/vmport: Introduce vmport.h, (continued)
[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 <=
[PATCH v3 12/16] hw/i386/vmport: Add support for CMD_GET_VCPU_INFO, Liran Alon, 2020/03/12
[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