[v1] x86/passthrough: fixes for PVH dom0 edge triggered interrupts

[PATCH for-4.14 0/2] x86/passthrough: fixes for PVH dom0 edge triggered interrupts

Roger Pau Monne posted 2 patches 3 years, 10 months ago

Diff against v2
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git fetch https://github.com/patchew-project/xen tags/patchew/20200610115103.7592-1-roger.pau@citrix.com

There is a newer version of this series

xen/arch/x86/hvm/irq.c        | 13 ++++++++-----
xen/drivers/passthrough/io.c  | 14 +++++++++++++-
xen/include/asm-x86/hvm/irq.h |  2 ++
3 files changed, 23 insertions(+), 6 deletions(-)

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[PATCH for-4.14 0/2] x86/passthrough: fixes for PVH dom0 edge triggered interrupts

Posted by Roger Pau Monne 3 years, 10 months ago

Hello,

Small series with two bugfixes to correctly handle edge triggered
interrupts on PVH dom0.

for-4.14 reasoning: fixes are isolated to PVH dom0 specific passthrough
code (IDENTITY_GSI kind of bindings), and hence shouldn't affect
passthrough to HVM domUs. Without these fixes the RTC timer won't work
correctly on a PVH dom0 because it's edge triggered (GSI 8).

Roger Pau Monne (2):
  x86/passthrough: do not assert edge triggered GSIs for PVH dom0
  x86/passthrough: introduce a flag for GSIs not requiring an EOI or
    unmask

 xen/arch/x86/hvm/irq.c        | 13 ++++++++-----
 xen/drivers/passthrough/io.c  | 14 +++++++++++++-
 xen/include/asm-x86/hvm/irq.h |  2 ++
 3 files changed, 23 insertions(+), 6 deletions(-)

-- 
2.26.2