From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:59039) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9Zt9-0001ue-Ru for qemu-devel@nongnu.org; Tue, 12 Apr 2011 05:28:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q9Zt9-0002TQ-3X for qemu-devel@nongnu.org; Tue, 12 Apr 2011 05:27:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52966) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9Zt8-0002TH-PP for qemu-devel@nongnu.org; Tue, 12 Apr 2011 05:27:59 -0400 From: Amit Shah Date: Tue, 12 Apr 2011 14:57:39 +0530 Message-Id: <5117cc4f49fb4fd756f3d56739b171f54aebdda8.1302600061.git.amit.shah@redhat.com> In-Reply-To: References: In-Reply-To: References: Subject: [Qemu-devel] [PATCH v2 1/6] atapi: Allow GESN after media change List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu list Cc: Kevin Wolf , Juan Quintela , Stefan Hajnoczi , Markus Armbruster , Amit Shah , Paolo Bonzini After a media change, the only commands allowed from the guest were REQUEST_SENSE and INQUIRY. The guest may also issue GET_EVENT_STATUS_NOTIFICATION commands to get media changed notification. Signed-off-by: Amit Shah --- hw/ide/core.c | 19 +++++++++++++------ 1 files changed, 13 insertions(+), 6 deletions(-) diff --git a/hw/ide/core.c b/hw/ide/core.c index c11d457..f839ef3 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -1102,13 +1102,20 @@ static void ide_atapi_cmd(IDEState *s) printf("\n"); } #endif - /* If there's a UNIT_ATTENTION condition pending, only - REQUEST_SENSE and INQUIRY commands are allowed to complete. */ + /* + * If there's a UNIT_ATTENTION condition pending, only + * REQUEST_SENSE, INQUIRY and GET_EVENT_STATUS_NOTIFICATION + * commands are allowed to complete. MMC-5, section 4.1.6.1 lists + * only these commands being allowed to complete, with other + * commands getting a CHECK condition response unless a higher + * priority status, defined by the drive here, is pending. + */ if (s->sense_key == SENSE_UNIT_ATTENTION && - s->io_buffer[0] != GPCMD_REQUEST_SENSE && - s->io_buffer[0] != GPCMD_INQUIRY) { - ide_atapi_cmd_check_status(s); - return; + s->io_buffer[0] != GPCMD_REQUEST_SENSE && + s->io_buffer[0] != GPCMD_INQUIRY && + s->io_buffer[0] != GPCMD_GET_EVENT_STATUS_NOTIFICATION) { + ide_atapi_cmd_check_status(s); + return; } switch(s->io_buffer[0]) { case GPCMD_TEST_UNIT_READY: -- 1.7.4.2