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| author | George Dunlap <george.dunlap@eu.citrix.com> | 2013-05-24 16:20:59 +0100 |
|---|---|---|
| committer | Ian Campbell <ian.campbell@citrix.com> | 2013-05-30 09:35:34 +0100 |
| commit | 5479961ab55e118b8c80db7724721e78743363c7 (patch) | |
| tree | 42a26238728b3c740b1678800b1cc16cf4fc0065 /docs | |
| parent | 9da60855040d480d7269ac7717e27bd9e8106bf0 (diff) | |
| download | xen-5479961ab55e118b8c80db7724721e78743363c7.tar.gz xen-5479961ab55e118b8c80db7724721e78743363c7.tar.bz2 xen-5479961ab55e118b8c80db7724721e78743363c7.zip | |
libxl: Remove qxl support for the 4.3 release
The qxl drivers for Windows and Linux end up calling instructions
that cannot be used for MMIO at the moment. Just for the 4.3 release,
remove qxl support.
This patch should be reverted as soon as the 4.4 development window opens.
The issue in question:
(XEN) emulate.c:88:d18 bad mmio size 16
(XEN) io.c:201:d18 MMIO emulation failed @ 0033:7fd2de390430: f3 0f 6f
19 41 83 e8 403
The instruction in question is "movdqu (%rcx),%xmm3". Xen knows how
to emulate it, but unfortunately %xmm3 is 16 bytes long, and the interface
between Xen and qemu at the moment would appear to only allow MMIO accesses
of 8 bytes.
It's too late in the release cycle to find a fix or a workaround.
Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/man/xl.cfg.pod.5 | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5 index 4c92721953..b7d64a6d7d 100644 --- a/docs/man/xl.cfg.pod.5 +++ b/docs/man/xl.cfg.pod.5 @@ -1005,9 +1005,6 @@ the amount of video ram is fixed at 4MB which is sufficient for 1024x768 at 32 bpp and videoram option is currently working only when using the upstream qemu-xen device-model. -For B<qxl> vga, the default is both default and minimal 128MB. -If B<videoram> is set less than 128MB, an error will be triggered. - =item B<stdvga=BOOLEAN> Select a standard VGA card with VBE (VESA BIOS Extensions) as the @@ -1019,14 +1016,9 @@ This option is deprecated, use vga="stdvga" instead. =item B<vga="STRING"> -Selects the emulated video card (stdvga|cirrus|qxl). +Selects the emulated video card (stdvga|cirrus). The default is cirrus. -In general, QXL should work with the Spice remote display protocol -for acceleration, and QXL driver is necessary in guest in this case. -QXL can also work with the VNC protocol, but it will be like a standard -VGA without acceleration. - =item B<vnc=BOOLEAN> Allow access to the display via the VNC protocol. This enables the |