[Xen-devel] [RFC][PATCH v2 0/1] Add support for Xen access to vmport

[Don Slutz <dslutz@xxxxxxxxxxx>]

Changes v1 to v2:
    Fixup usage of hvmtrace_io_assist().
    VMware only changes the 32bit part of the register.

  Stefano Stabellini -- QEMU part
    the registers being passes explicitely by Xen rather than
    "hiding" them into other ioreq fields.
       Added vmware_ioreq_t

Note: to use this with Xen either a version of:

[Qemu-devel] [PATCH] -machine vmport=off: Allow disabling of VMWare ioport 
emulation

And a manual adjustment so that QEMU is started with vmport=1

or

From f70663d9fb86914144ba340b6186cb1e67ac6eec Mon Sep 17 00:00:00 2001
From: Don Slutz <dslutz@xxxxxxxxxxx>
Date: Fri, 26 Sep 2014 08:11:39 -0400
Subject: [PATCH 1/2] hack: force enable vmport

Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
---
 hw/i386/pc_piix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 103d756..b76dfbc 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -234,7 +234,7 @@ static void pc_init1(MachineState *machine,
     pc_vga_init(isa_bus, pci_enabled ? pci_bus : NULL);
 
     /* init basic PC hardware */
-    pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, xen_enabled(),
+    pc_basic_device_init(isa_bus, gsi, &rtc_state, &floppy, false,
         0x4);
 
     pc_nic_init(isa_bus, pci_bus);
-- 
1.8.4

needs to be done to QEMU.

Don Slutz (1):
  Add IOREQ_TYPE_VMWARE_PORT

 xen/arch/x86/hvm/emulate.c        | 72 +++++++++++++++++++++++++++++++++++++++
 xen/arch/x86/hvm/io.c             | 19 +++++++++++
 xen/arch/x86/hvm/vmware/vmport.c  | 24 ++++++++++++-
 xen/include/asm-x86/hvm/emulate.h |  2 ++
 xen/include/asm-x86/hvm/vcpu.h    |  1 +
 xen/include/public/hvm/ioreq.h    | 19 +++++++++++
 6 files changed, 136 insertions(+), 1 deletion(-)

-- 
1.8.4


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