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Mon, 09 Mar 2020 23:52:34 +0000 Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 029NqXCr027364; Mon, 9 Mar 2020 23:52:33 GMT Received: from spark.ravello.local (/213.57.127.2) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 09 Mar 2020 16:52:33 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=corp-2020-01-29; bh=QSP5saFzEDgsn5bThEih2l0XfjK5e/tXIVv97DZzaxU=; b=yftAGqTPVMpsDu6QkeqwQMmblCtgYV7pSJnxs3OPFghevMu4axoaB3O3o80kJ+yYQKmf DYlJXgjOvUaYq+OYRjBC7oK8G9Ouhe6OjejO9pmMaP6fllj1oYiNC5TOc1VIBRapxt1Q AXdB+kBL8MhA2Qqa7svUebxp6rl6bbF4KuVU8Z3mshomhbP+bK46J+TUmASMlH536MRl 4qGPhih17y/vClDK/B6tOZZeM+XJ17w/+JMPRYOlAWY5xQuB9wers/5PPO9HDKhwnWc5 3q4ecaPj3bVqiDxpdvKXmMJP6f3NHkcKcHvJB4Q2/esAAX0lZp1xhA3Rzj8w0pByMb4K tw== From: Liran Alon To: qemu-devel@nongnu.org Subject: [PATCH 08/14] hw/i386/vmport: Add support for CMD_GETTIME Date: Tue, 10 Mar 2020 01:54:05 +0200 Message-Id: <20200309235411.76587-9-liran.alon@oracle.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200309235411.76587-1-liran.alon@oracle.com> References: <20200309235411.76587-1-liran.alon@oracle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9555 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 mlxlogscore=999 phishscore=0 spamscore=0 mlxscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003090143 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9555 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 impostorscore=0 mlxlogscore=999 suspectscore=1 priorityscore=1501 lowpriorityscore=0 phishscore=0 adultscore=0 spamscore=0 mlxscore=0 clxscore=1015 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003090144 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 156.151.31.85 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ehabkost@redhat.com, mst@redhat.com, Liran Alon , Nikita Leshenko , pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" This command is used by guest to gettimeofday() from host. See usage example in open-vm-tools TimeSyncReadHost() function. Reviewed-by: Nikita Leshenko Signed-off-by: Liran Alon --- hw/i386/vmport.c | 21 +++++++++++++++++++++ include/hw/i386/pc.h | 1 + 2 files changed, 22 insertions(+) diff --git a/hw/i386/vmport.c b/hw/i386/vmport.c index 7687f3368a55..21253933215b 100644 --- a/hw/i386/vmport.c +++ b/hw/i386/vmport.c @@ -53,6 +53,7 @@ typedef struct VMPortState { =20 uint32_t vmx_version; uint8_t vmx_type; + uint32_t max_time_lag_us; } VMPortState; =20 static VMPortState *port_state; @@ -142,6 +143,20 @@ static uint32_t vmport_cmd_ram_size(void *opaque, uint= 32_t addr) return ram_size; } =20 +static uint32_t vmport_cmd_time(void *opaque, uint32_t addr) +{ + X86CPU *cpu =3D X86_CPU(current_cpu); + qemu_timeval tv; + + if (qemu_gettimeofday(&tv) < 0) { + return UINT32_MAX; + } + + cpu->env.regs[R_EBX] =3D (uint32_t)tv.tv_usec; + cpu->env.regs[R_ECX] =3D port_state->max_time_lag_us; + return (uint32_t)tv.tv_sec; +} + /* vmmouse helpers */ void vmmouse_get_data(uint32_t *data) { @@ -186,6 +201,7 @@ static void vmport_realizefn(DeviceState *dev, Error **= errp) vmport_register(VMPORT_CMD_GETVERSION, vmport_cmd_get_version, NULL); vmport_register(VMPORT_CMD_GETBIOSUUID, vmport_cmd_get_bios_uuid, NULL= ); vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL); + vmport_register(VMPORT_CMD_GETTIME, vmport_cmd_time, NULL); } =20 static Property vmport_properties[] =3D { @@ -193,6 +209,11 @@ static Property vmport_properties[] =3D { DEFINE_PROP_UINT32("vmx-version", VMPortState, vmx_version, 6), DEFINE_PROP_UINT8("vmx-type", VMPortState, vmx_type, VMX_TYPE_SCALABLE_SERVER), + /* + * Max amount of time lag that can go uncorrected. + * Value taken from VMware Workstation 5.5. + **/ + DEFINE_PROP_UINT32("max-time-lag", VMPortState, max_time_lag_us, 10000= 00), DEFINE_PROP_END_OF_LIST(), }; =20 diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index ea87eb93511e..3ab3541b3a90 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -142,6 +142,7 @@ typedef enum { VMPORT_CMD_GETVERSION =3D 10, VMPORT_CMD_GETBIOSUUID =3D 19, VMPORT_CMD_GETRAMSIZE =3D 20, + VMPORT_CMD_GETTIME =3D 23, VMPORT_CMD_VMMOUSE_DATA =3D 39, VMPORT_CMD_VMMOUSE_STATUS =3D 40, VMPORT_CMD_VMMOUSE_COMMAND =3D 41, --=20 2.20.1